HomeMy WebLinkAboutCityMgrForm.828.09-05-1973 � y
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CITY MANAGER FORM ORDINANCE NO. �'L�
AN ORDINANCE REPEALING COMMISSION FORM ORDIN.ANCE NOS. 1795, 1797,
2216 , 2407, AND CITY MAI�TAGER FORM ORDINANCE N0. 410 AND CHAPTER 21,
OF THE CODE OF ORDINANCES OF THE CITY OF CAPE GIRARDEAU, MISSOURI,
KNOWN AS THE "PLUMBING CODE", AND ENACTING IN LIEU THEREOF AN
ORDINANCE TO BE KNOWN AND DESIGNATED A5 "THE PLUMBING CODE OF THE
CITY OF CAPE GIRA.RDEAU� MISSOURI� 1973"� CONSISTING OF THE FOLLOWING�
ADMINI5TRATIVE PROVISIONS, BASIC PLUMBING PRINCIPALS, GENERAL
REGULATIONS, MATERIALS, JOINTS AND CONNECTIONS, TR.APS AND CLEANOUTS,
INTERCEPTORS, SEPARATOR5, AND BACKWATER VALVE5, PLUMBING FIXTURES,
HANGERS AND SUPPORTS, INDIRECT WA5TE PIPING AND SPECIAL WASTE,
WATER SUPPLY AND DISTRIBUTION, DR.AINAGE SY5TEM, VENTS AND VENTING,
STORM DRAIN5, MEDICAL CARE FACILITY PLUMBING EQUIPMENT, TESTS �ND
MAINTENANCE, 5PECIFICATIONS FOR SANITARY SEWERS, 5PECIFICATIONS
FOR STORM 5EWER5 , REGULATION5 GOVERNING INDIVIDUAL SEWAGE DISPOSAL,
POTABLE WATER SUPPLY 5YSTEM PUMPS, TRAILER PARK PLUMBING 5TANDARDS,
WATER HEATER REPLACEMENT, AND ADOPTION OF REFERENCE5; PROVIDING FOR
PENALTIES FOR THE VIOLATION OF THE PROVI5IONS THEREOF
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF CAPE GIRARDEAU,
MISSOURI, AS FOLLOWS:
5ECTION A. Commission Form Ordinance Nos. 1795, 1797,
2216, and 24Q7, and City Manager Form Ordinance N0. 410 , and
Chapter 21 of the Code of Ordinances of the City of Cape �irardeau,
Missouri, known as the "Plumbing Code" of the City of Cape Girardeau,
are hereby repealed and there is hereby enacted in lieu thereof an
ordinance to be known and designated as '°The Plumbing Code of the
City of Cape Girardeau, Missouri, 1973", consisting of thirty-six
(36) sections , to read as follows :
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PLUMBING CODE
Table Of Contents
PAGE
ARTICLE I. ADMINISTRATIVE PROVISIONS--------------------------------- 1
SECTION
21-1 Tit1e------------------------------------------------------- 1
21-2 Declaration of Public Necessity----------------------------- 1
21-3 Definitions------------------------------------------------- 1
21-4 Conditions Upon Which Drainage and Plumbing May Be
Connected With a Public Sewer-------------------------------- 18
21-5 Sewer and Water Supply Data--------------------------------- 18
A. Public Sewer--------------------------------- - 18
B. Public Water Main---------------------------------------- 19
C. Identical 5tructures------------------------------------- 19
21-6 Inspections and Test Not Required--------------------------- 19
21-7 Defective Plumbing and Drain Laying------------------------- 19
A. Condemnation--------------------------------------------- 19
B. Test----------------------------------------------------- 20
21-8 Penalties--------------------------------------------------- 20
21-9 Office of Plumbing and Sewer Inspection--------------------- 20
A. Establishment-------------------------------------------- 20
B. Duties--------------------------------------------------- 21
21-10 Violations-------------------------------------------------- 21
A. Notice of Violations------------------------------------- 21
B. Immediate ComplianCe------------------------------------- 21
C. Ten Day Compliance--------------------------------------- 22
D. Stop Work Order------------------------------------------ 22
E. Penalties------------------------------------------------ 22
21-11 Board of Examiners------------------------------------------ 22
.
A. Creation------------------------------------------------- 22
B. Term, Appointment, Payment, Qualifications--------------- 23
C. Removal-------------------------------------------------- 23
D. Meetings-------------------------------------------------- 23
.
E. Duties--------------------------------------------------- 23
21-12 Licenses and Certification---------------------------------- 24
A. Licenses Required---------------------------------------- 24
B. Classifications Requiring Examination-------------------- 24
C. Classifications Requiring Registration------------------- 24
D. Qualifications------------------------------------------- 24
E. Fees----------------------------------------------------- 26
F. Expiration and Renewal----------------------------------- 26
G. Revocation-5uspension------------------------------------ 27
H. Examination and Registration----------------------------- 27
I . Existing Certificate Holders------------------------------ 28
J. Temporary License---------------------------------------- 28
K. Bonds---------------------------------------------------- 29
.
L. Exception------------------------------------------------
M. Use of Licensee 's Name by Another------------------------ 30
N. General-------------------------------------------------- 30
21-13 Supervision------------------------------------------------- 30
A. Plumbing Contractors------------------------------------- 30
B. Drain Laying--------------------------------------------- 30
C. Plumbing------------------------------------------------- 30
D. General Supervision-------------------------------------- 31
E. Exceptions----------------------------------------------- 31
21-14 Permits----------------------------------------------------- 31
A. Required------------------------------------------------- 31
B. Issued to Whom------------------------------------------- 32
C. Fees----------------------------------------------------- 32
ARTICLE II. BASIC PLUMBING PRINCIPALS-------------------------------- 34
SECTION
21-15 Basic Plumbing Principals----------------------------------- 34
A. A1.1 occupied Premises Shall Have Potable Water----------- 34
B . Adequate Water Required---------------------------------- 35
C. Hot Water Required--------------------------------------- 35
D. Water Conservation--------------------------------------- 35
i.
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SECTION PAGE
E. 5afety Devices------------------------------------------- 35
F. Use Public 5ewer Where Available------------------------- 35
G. Required Plumbing Fixtures------------------------------- 35
H. Drainage 5ystem------------------------------------------ 35
I . Durable Materials and Good Workmanship------------------- 35
J. Fixture Traps-------------------------------------------- 36
K. Trap Seals Shall be Protected---------------------------- 36
L. Exhaust Foul Air to Outside------------------------------ 36
M. Test the Pumping 5ystem---------------------------------- 36
N. Exclude Certain Substances From the Plumbing System------ 36
O. Prevent Contamination------------------------------------ 36
P. Light and Ventilation--------------------------- 36
Q. Individual Sewage Disposal 5ystems----------------------- 36
R. Prevent Sewer Flooding----------------------------------- 36
S . Proper Maintenance--------------------------------------- 36
T. Fixtures 5hall be Accessible----------------------------- 37
U. Structural Safety---------------------------------------- 37
V. Project Ground and Surface t�Jater------------------------- 37
ARTICLE III . GENERAL REGULATION5------------------------------------- 37
SECTION
21-16 General Regulations----------------------------------------- 37
A. Public Provisions---------------------------------------- 37
B . Conformance with Code------------------------------------ 37
C. Plumbing Materials and Plumk�ing 5ystems------------------ 37
1. Changes in Direction--------------------------------- 37
2. Fittings and Connections----------------------------- 38
3. Repairs and Alterations------------------------------ 39
4 . Sewer and Water Pipe--------------------------------- 39
5. Trenching, Bedding, Tunneling and Backfilling-------- 39
6. Tunneling-------------------------------------------- 40
7. Backfilling------------------------------------------ 40
8 . Backfill Material------------------------------------- 40
9 . Safety Precautions----------------------------------- 40
10 . Safety----------------------------------------------- 40
11. Workmanship------------------------------------------ 40
12 . Good Repair and Safe Structural Condition------------ 41
13 . Notification of Owner-------------------------------- 41
14. Poor Workmanship------------------------------------- 41
15 . Responsibility of Licensee--------------------------- 41
16. Protection of Pipes---------------------------------- 42
17. �xclusion of Materials Detrimental to the------------ 42
Sewerage System
18. Industrial Wastes------------------------------------ 42
19 . Sleeves---------------------------------------------- 43
20 . Ratproofing------------------------------------------ 43
21. Used Materials or Equipment-------------------------- 43
22 . Condemned Equipment---------------------------------- 43
23. Freezing--------------------------------------------- 43
24. Protection of Footings------------------------------- 43
25. Connections to Plumbing Systems Reguired------------- 43
26. Connection to Water and Sewer System----------------- 44
27 . Washroom and Toilet Room Requirements---------------- 44
28 . Piping Measurements---------------------------------- 44
29 . Water Closet Connections----------------------------- 44
30. Dead Ends-------------------------------------------- 45
31. Toilet Facilities for Workmen------------------------ 45
32 . Protection of Water Tanks and Food 5upplyT----------- 45
33. 5tormwater and Sub-soil Drains----------------------- 45
ARTICLE IV. SPECIFIC REGULATIONS------------------------------------- 45
SECTION
21-17 Materials--------------------------------------------------- 45
A. Minimum Standards---------------------------------------- 45
B . General Requirements------------------------------------- 45
C. 5tandards Applicable to Plumbing Materials--------------- 46
D. Special Materials---------------------------------------- 47
1. Lead------------------------------------------------- 47
2 . Copper----------------------------------------------- 47
3 . Calking Ferrules------------------------------------- 47
4 . 5oldering Bushings----------------------------------- 48
ii .
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SECTION PAGE
5 . Floor Flanges---------------------------------------- 48
6. Cleanout Plugs--------------------------------------- 48
7. Flush Pipes and Fittings----------------------------- 48
E. Alternate Materials and Methods-------------------------- 48
l. Existing Buildings----------------------------------- 48
2 . Approval--------------------------------------------- 49
3 . Tests------------------------------------------------ 49
4 . Test Procedure--------------------------------------- 49
5. Repeated Tests--------------------------------------- 49
6. Mobile Homes----------------------------------------- 50
7. Travel Trailers-------------------------------------- 50
F. Approval Materials--------------------------------------- 50
l. Periodic Review-------------------------------------- 50
2 . 5pecific Usage--------------------------------------- 50
21-18 Joints and Connections-------------------------------------- 54
A. Tightness------------------------------------------------ 54
B. Types of Joints for Piping Materials--------------------- 54
C. Mechanical (Flexible or Slip Joint) ---------------------- 56
D. Tapered Couplings---------------------------------------- 57
E. Welded Joints-------------------------------------------- 57
F. Plastic-------------------------------------------------- 57
G. 51ip----------------------------------------------------- 57
H. Expansion------------------------------------------------ 57
I . Types of Joints Between Different Piping Materials------- 57
J. Connections Between Drainage Piping and------------------ 59
Certain Fixtures
K. Waterproofing of Openings-------------------------------- 59
L. Prohibited Joints and Connections , Drainage 5ystem------- 59
M. Increasers and Reducers---------------------------------- 59
21-19 Traps and Cleanouts----------------------------------------- 59
A. 5eparate Traps for Each Fixture-------------------------- 59
B. Size of Fixture Traps----------------- 60
-------------------
C. General Requirements for Traps--------------------------- 61
D. Drainage Pipe Cleanouts------------------------------�--- 6I
E. Acid Resisting Traps------------------------------------- 63
21-20 Interceptors , Separators, and Backwater Valves-------------- 63
A. Interceptors and Separators------------------------------ 63
B. Grease Interceptors-------------------------------------- 64
C. Sand Interceptors---------------------------------------- 64
D. Venting of Interceptors and 5eparators------------------- 64
E. Interceptors and Separators to be Accessible------------- 64
F. Efficiency of Interceptors------------------------------- 64
G. Laundries------------------------------------------------ 65
H. Bottling Establishments---------------------------------- 65
I . Slaughter Houses----------------------------------------- 65
J. Maintenance of Interceptors and Separators--------------- 65
K. Oi1 and Flammable Liquids Separator---------------------- 65
21-21 Plumbing Fixtures------------------------------------------- 67
A. Fixture Materials---------------------------------------- 67
B. Materials for Special Use Fixtures----------------------- 67
C. Overflows------------------------------------------------ 67
D. Installation of Fixtures--------------------------------- 67
E . Water Supply Protection---------------------------------- 68
F. Prohibited Fixtures-------------------------------------- 68
G. Water Closets-------------------------------------------- 69
H. Urinals-------------------------------------------------- 69
I . Flushing Devices for Water Closets and Urinals----------- 70
J. Fixtures to have Strainers------------------------------- 71
K. Lavatories----------------------------------------------- 71
L. Bathtubs------------------------------------------------- 71
M. Showers-------------------------------------------------- 71
N. Sinks. Sink Waste Outlets------------------------------- 72
O. Food Waste Grinder Units--------------------------------- 73
P. Drinking Fountains--------------------------------------- 73
Q. Floor Drains--------------------------------------------- 73
. .
R. Dishwashing Machines------------------------------------- 74
S. 1Multiple Type Fixtures----------------------------------- 74
T. Garbage Can Washers-------------------------------------- 74
U. Laundry Trays--------------------------------------------- 74
V. Automatic Clothes Washers-------------------------------- 74
W. Special Plumbing Fixtures-------------------------------- 75
X. Minimum Plumbing Facilities------------------------------ 75
iii .
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SECTION PAGE
21-22 Hangers and Supports---------------------------------------- 78
A. Attachment to Building----------------------------------- �g
B. VertiCal Piping------------------------------------------ 78
C. Horizontal Piping---------------------------------------- 78
D. In Ground------------------------------------------------ 78
E . Material------------------------------------------------- 78
F . Strain and Stresses in Pipe------------------------------ 78
G. Base of 5tacks------------------------------------------- 79
21-23 Indirect Waste Piping and 5pecial Waste--------------------- '79
A. Indirect Waste------------------------------------------- 79
B. Installation of Indirect Waste Piping-------------------- 80
.
C. Air Gap and Air Break------------------------------------ gp
D. Receptors or Sumps--------------------------------------- 81
E. Clear Water Wastes--------------------------------------- gl
F. Waste Water Temperature---------------------------------- 82
G. Special Wastes------------------------------------------- 82
H. Swimming Pools------------------------------------------- 82
21-24 Water Supply and Distribution------------------------------- 83
A. Quality of Water Supply---------------------------------- g3
B. Identification of Potable and Non-Potable Water---------- 83
C. Water Required------------------------------------------- 83
D. Protection of Potable Water Supply----------------------- g3
1. General---------------------------------------------- 83
2. Interconnections------------------------------------- 83
3. Cross Connection Control----------------------------- 83
4. Individual Water Supplies---------------------------- 83
5. Toxic Materials-------------------------------------- 83
6 . Chemicals and Other 5ubstances----------------------- g4
7. Painting of Water Tanks------------------------------ 84
8. Used Piping------------------------------------------ 84
9 . Connections to Feed Water Systems-------------------- 84
10. Prohibited Connections to Fixtures and Equipment----- 84
11. Refrigerating Unit Condensers and Cooling Jackets---- 84
E. Protection Against Backflow and Backsiphonage------------ 85
l. Water Outlets---------------------------------------- 85
2 . Minimum Required Air Gap----------------------------- g5
3. 5ide Walls, Ribs, Similar Obstructions--------------- 86
4. Vertical walls , ribs, similar obstructions----------- 86
5. Devices for the Protection of Potable Water Supply--- 86
6. Approval of Devices---------------------------------- 86
7. Protective Devices Required-------------------------- 86
8. Connections Subject to Back Pressure----------------- 87
F. Installation of Devices---------------------------------- gg
G. Tanks and Vats - Below Rim 5upply------------------------ 88
H. Separation of Water Service from Building 5ewer---------- 88
I. Water Service Near Sources of Pollution------------------ 89
J. Stop and Waste Valves Prohibited------------------------- 8g
K. Water Pumping and Storage Equipment---------------------- 89
L. Water Pressure Booster Systems--------------------------- gg
M. Disinfection of Potable Water System--------------------- 91
N. Water Supply System Materials---------------------------- gl
O. A1lowance for Character of Soi1. and Water---------------- 93
P. Water Supply Control------------------------------------- 94
Q. Water Suppl.y Distribution-------------------------------- 94
R. Procedure in Sizing the Water Distribution 5ystem-------- 95
S . Hot Water Distribution----------------------------------- 97
T . Safety Devices------------------------------------------- 97
U. Miscellaneous-------------------------------------------- 99
21-25 Drainage System----------------------------------------------100
A. Materials------------------------------------------------100
B. Building Sewers and Drains-------------------------------101
C. Fixture Units--------------------------------------------103
D. Determining Size of Drainage System----------------------105
E. Sizing of Offsets on Drain�ge Piping---------------------107
F. Building Sumps-------------------------------------------108
21-26 Vents and Venting-------------------------------------------110
A. Materials------------------------------------------------110
B. Protection of Trap Seals---------------------------------110
C. Vent Stacks and Stack Vents------------------------------110
D. Vent Terminals-------------------------------------------111
E. Frost Closure--------------------------------------------112
iv.
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SECTION PAGE
F. Vent Grades and Connections------------------------------112
G. Fixtures Back-to-Back------------------------------------11.3
H. Fixture Vents--------------------------------------------113
I. Common Vents---------------------------------------------113
J. Wet Venting----------------------------------------------114
K. 5tack Venting. One Bathroom Group------------------------114
L. Individual Fixture Reventing-----------------------------115
M. Venting of Sumps-----------------------------------------115
N. Relief Vents------------------------------ 11.6
---------------
O. Selecting 5ize of Vent Piping----------------------------117
21-27 5torm Drains------------------------------------------------119
A. General--------------------------------------------------119
B. Materials------------------------------------------------119
C. Traps on Storm Drains and Leaders------------------------120
D. Leaders (Conductors) and Connections---------------------120
E. Roof Drains----------------------------------------------121
F. Size of Leaders and Storm Drains-------------------------121
G. 5ize of Horizontal 5torm Drains--------------------------122
H. Size of Combined Drains and Sewer------------------------122
I. Values for Continuous Flow-------------------------------122
21-28 Medical Care Facility Plumbing Equipment--------------------123
A. General--------------------------------------------------123
B. Prohibited Use of Clinic Sinks and Service Sinks---------123
C. Location of Ice Making Machines--------------------------123
D. Sterilizer Equipment Requirements------------------------123
E. Special Installation Requirements------------------------124
F. Plumbing in Mental Hospitals-----------------------------124
G. Ice Storage Chest Drains---------------------------------124
H. Bedpan Washers and Clinic Sinks--------------------------124
I. 5terilizer Wastes----------------------------------------124
J. Aspirators-----------------------------------------------126
K. Vacuum Systems Stations----------------------------------126
L. Bottle Systems-------------------------------------------126
M. Central Disposal 5ystem Equipment------------------------126
N. Central Vacuum or Disposal Systems-----------------------127
O. Water Systems for Space Cooling and Heating--------------127
Condensate Drains
P. Vent Material--------------------------------------------127
Q. Vent Connections Prohibited------------------------------127
R. Local Vents and Stacks-----------------------------------128
S. Sterilizer Vents and Stacks------------------------------128
T. 5terilizer Vent Stack 5izes------------------------------129
U. Radioactive Materials------------------------------------130
V. Hot Water Heater and Tanks-------------------------------130
W. Hot Water 5upply System----------------------------------130
X. Vacuum Breaker Installations-----------------------------131
Y. Prohibited Water Closet and Clinic Sink Supply-----------131
Z . 5pecial Equipment, Water Supply Protection---------------131
AA. Valve Leakage Diverter-----------------------------------132
BB. Miscellaneous--------------------------------------------132
21-29 Tests and Maintenance---------------------------------------132
A. Exposure of Work-----------------------------------------132
B. Equipment, Material and Labor for Tests------------------132
C. Testing of Plumbing or Drainage 5ystem-------------------133
D. Methods of Testing Drainage and Vent Systems-------------133
E. Methods of Testing Water 5upply Systems------------------134
F. Defective Plumbing---------------------------------------134
G. Maintenance----------------------------------------------134
21-30 Specifications for 5anitary 5ewers--------------------------134
A. General Requirements-------------------------------------134
l. Jurisdiction-----------------------------------------134
2 . Approval of Sewer Plans------------------------------134
3. Public Sewer-----------------------------------------135
4. 5upervision of Construction--------------------------135
5. Recommended 5pecification for the Use of La�er-------135
Aligning Equipment
6. Inspection-------------------------------------------136
7. Standards--------------------------------------------136
8. Acceptance-------------------------------------------136
v.
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SECTION PAGE
B. 5ewer Pipe Materials-------------------------------------136
l. Cement-----------------------------------------------136
2. 5and-------------------------------------------------136
3 . Coarse Aggregate-------------------------------------136
4. Water------------------------------------------------137
5. Reinforcing Bars-------------------------------------137
6. Brick------------------------------------------------137
7. Vitrified Clay Sewer Pipe---------------------
-------137
8. Reinforced and Plain Concrete Pipe-------------------138
9 . Alternate Types Pipe---------------------------------138
10 . Cast Iron--------------------------------------------138
11. Handling Materials-----------------------------------139
C. Excavation, Backfill, Manholes and Pipe Laying-----------139
1. Classifications of Excavation------------------------139
2. Work Included----------------------------------------139
3. Method of Excavation---------------------------------140
4. Excavation for Pipe Sewers---------------------------140
5. Surface to be Kept in Passable Condition-------------141
6 . Bracing and Shoring----------------------------------141
7. Excavation for Manholes and Inlets-------------------141
8. Removing and Replacing Pavement----------------------142
9 . Preparation of Subgrade------------------------------142
10. Pipe Sewers------------------------------------------143
(a) Shaping trench bottom----------------------------143
(b) Laying-------------------------------------------143
(c) Backfilling--------------------------------------143
(d) Curved Pipe, Reducers and Expanders,-------------144
Pipe Ends
(e) Cast Iron Pipe - Concrete encasement of Pipe-----144
11. Mortar-----------------------------------------------145
12. Brick Masonry----------------------------------------145
1.3 . Concrete---------------------------------------------146
14. Work in Freezing Weather-----------------------------146
15. Manholes---------------------------------------------146
16. Laying Brick-----------------------------------------147
17. Manhole Heights--------------------------------------148
18. Steps------------------------------------------------148
19 . Manhole Frames and Covers----------------------------148
20 . Backfilling------------------------------------------148
21. Removing Bracing-------------------------------------150
22 . After Settlement of Surface--------------------------150
23. Final Cleaning of Sewers-----------------------------150
24. Disposal of Surplus Excavation-----------------------150
25. Inlets-----------------------------------------------151
26 . Existing 5treet Surfaces----------------------------- 151
27. Inlet Stones and 5ills------------------------------- 151
28 . In1.et Pipes------------------------------------------ 151
D. Special Details------------------------------------------ 152
E. Prevailing Wage Law-------------------------------------- 153
F. General Provisions--------------------------------------- 154
G. Test of Defective Plumbing------------------------------- 155
H. Septic Tank By-Pass-------------------------------------- 155
I . Swimming Pools------------------------------------------- 155
.
J. Sanitary Building Sewer Grade---------------------------- 155
K. Sanitary Building Sewer Connections to Main-------------- 155
L. Building 5ewer Connections--------------------------- 156
M. Regulations for Opening and Excavating of Streets anc�--- 156
ResurfaCing of Excavations
21-31 5pecifications for Storm Sewers----------------------------- 159
A. Approval of 5ewer Plans---------------------------------- 159
21-32 Regulations Governing Individual Sewage Disposal------------ 159
Systems for Homes and Other Establishments Where
Public Sewage Systems are not Available
A. General Provisions--------------------------------------- 159
B. Type of System ------------------------------------------ 161
C. Sanitary Sewage------------------------------------------ 161
.
D. Discharge------------------------------------------------ 161
E. Alternate Design----------------------------------------- 161
F. Location of Individual Sewage System--------------------- 163
vi .
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SECTION PAGE
G. Rules and Res�ulations for Percolation Tests--------------163
H. Capacity of Septic Tanks---------------------------------166
I . Absorption Trenches--------------------------------------168
J. Piping Material------------------------------------------169
K. 5and Filters---------------------------------------------169
L. Scavengers------------------------------------------------170
21-33 Potable T�Tater Supply 5ystem Pumps---------------------------171
A. General Regulation---------------------------------------171
B. Quantity of Water Required-------------------------------171
C. Pressure---�---------------------------------------------172
D. Piping Materials-----------------------------------------172
E . Storage Tanks--------------------------------------------172
F. Pumps----------------------------------------------------173
G. Pump Down Control----------------------------------------173
H. Controls - Devices---------------------------------------173
I. Well Terminal--------------------------------------------174
J. Vents----------------------------------------------------176
K. Pump Bearing Lubrication---------------------------------176
L. Water Level Measurement----------------------------------176
M. Prohibited Pumps-----------------------------------------176
N . Pum Housin -------------177
p g--------------------------------
O. Cross Connection-----------------------------------------177
21-34 Trailer Park Plumbing 5tandards-----------------------------177
A. Inspector------------------------------------------------177
B. Definitions----------------------------------------------177
C. Standards------------------------------------------------178
D. Materials------------------------------------------------179
E. Sewer----------------------------------------------------179
F. Water Distributing System--------------------------------181
G. Gas Distribution 5ystem----------------------------------182
.
H. Testing--------------------------------------------------182
I . Sanitary Facilities--------------------------------------183
J. Maintenance----------------------------------------------184
K. Responsibility - Violations - Operator's-----------------184
Responsibility
21-35 Water Heater Replacement-Permits-Inspections-Bonds----------184
and Fees
A. Registration and Bond Required---------------------------1�4
B. Special Use Permit Required------------------------------184
C. Permit and Inspection Fees-------------------------------184
D. Defective Installation-----------------------------------185
E . Violation, Notice of-------------------------------------185
F. Penalties------------------------------------------------185
G. Ten (10) Day Notice--------------------------------------185
H. Single Family Dwellings----------------------------------185
I . Materials and Use of Materials---------------------------185
J. Inspection and Approval Install.ation---------------------186
K. Failure to Request Inspection----------------------------186
21-36 Adoption of References--------------------------------------186
A. General---------------------------------------------------186
B. Codes, Standards , Regulations , etc.----------------------187
vii .
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_ _ _
P LUMB I NG CQI�E
ARTICLE I. ADMINISTRATIVE PROVZSIONS
Sec. 21-1. Title.
This chapter shall. be known and may be cited as the "Plumbing
Code of the City of Cape Girardeau, Missouri. "
Sec. 21-2 . Declaration of Public Necessity .
In accordance with Chapter 341, Revised Statutes of Missouri
1969, as amended, it is hereby found and determined that the adoption
of a "Plumbing Code" is necessary for the promotion of the public
health and satety of the citizens of the City of Cape Girardeau,
Missouri, and this Code is enacted pursuant to the provisions of
Section 341. 060 RSMo 1969 , as amended.
Sec. 21-3. Definitions .
A. General Rules . For the purpose of this ordinance , certain
terms and words are hereby defined. Words used in the present tense
shall include the future; the singular number shall include the
plural and the plural the singular.
B. General. For the purpose of this Code, the following terms
shall have the meaning indicated in this section.
l. Absorption Field - An interconnected system of two (2)
or more absorption trenches which receives the effluent from a
septic tank or individual sewage treatment plant.
2. Absorption Trench - A trench designed to allow the
absorption of the effluent from a septic tank or individual sewage
treatment plant into the sub-surface ground.
3. Administrative Authority - The individual official,
board, department or agency established and authorized by a state,
county, city or other political subdivision created by law to administer
and enforce the provisions of the plumbing code as adopted or amended.
4. Air Break (Drainage 5ystem) - A piping arrangement in
which a drain from a fixture, appliance, or device discharges indirectly
into another fixture, recepticle, or interceptor at a point below the
flood level rim.
� �
(Sec. 21-3 B)
5. Air Gap (Drainage System) - The unobstructed vertical
distance through the free atmosphere between the outlet of waste
pipe and the flood level rim of the receptacle into which it is
discharging.
6 . Air Gap (Water Distribution 5ystem) - The unobstructed
vertical distanCe through the free atmosphere between the lowest
opening from any pipe or faucet supplying water to a tank, plumbing
fixture or other device and the flood level rim of the receptacle.
7. Anchors - See Supports .
8. Approved - Accepted or acceptable under an applicable
specification stated or cited in this Code, or accepted as suitable
for the purposed use under procedures and powers of the Inspector.
9 . Area Drain - A receptacle designed to collect surface or
storm water from an open area.
10 . Aspirator - A fitting or device supplied with water or
other fl.uid under positive pressure which passes through an integral
orifice or "constriction" causing a vacuum.
11. Autopsy Table - A fixture or table used for the
postmortum examination of a body.
12. Backflow - The flow of water or other liquid, mixtures,
or substances into the distributing pipes of a potable supply of
water from any source or sources other than its intended source.
Back-siphonage is one type of backflow.
13. Backflow Connection - Any arrangement whereby backflow
can occur.
14. Backflow Preventer - A device or means to prevent
backf low.
15. Backflow Prevented, Reduced Pressure Zone Type - An
assembly of differential valves and check valves inCluding an auto-
matically opened spillage port to the atmosphere.
16 . Back-Siphonage - The flowing back of used, contaminated,
or polluted water from a plumbing fixture or vessel or other sources
into a potable water supply pipe due to a negative pressure in such
pipe .
2 .
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(Sec. 21-3 B)
17. Battery of Fixtures - Any group of two or more similar
adjacent fixtures which discharge into a common horizontal waste or
soil branch.
18 . Bedpan Steamer - A fixture used for scalding bedpans or
urinals by direct application of steam.
19 . Bedpan Washer - A fixture designed to wash bedpans and
to flush the contents into the soil drainage system. It may also
provide for steaming the utensils with steam or hot water.
20 . Bedpan [aasher Hose - l�, device supplied with hot and cold
water and located adjacent to a water closet or clinic sink to be
used for cleansing bedpans .
21. Boiler Blow-Off- An outlet on a boiler to permit emptying
or discharge of sediment.
22. Boiler Blow-Off Tank - A vessel designed to receive
the discharge from a boiler blow-off outlet and to Cool the discharge
to a tempe�ature which permits its safe discharge to the drainage
system.
23. Branch - Any part of the piping system other than a
riser, main or stack.
24. Branch, Fixture - See Fixture Branch.
25. Branch, Horizontal - See Horizontal Branch.
26 . Branch Interval - A distanae along a soil or waste
stack corresponding in general to a story height, but in no case less
than 8 feet, within which the horizontal branches from one floor or
story of a building are connected to the stack.
27. Branch Vent - A vent connecting one or more individual
vents with a vent stack or stack vent.
28. Building - A structure enclosed within exterior walls or
fire walls, built, erected and framed of component structural parts,
designed for the housing, shelter, enclosure and support of individuals,
animals or property of any kind.
29 . Building Classification - The arrangement adopted by
the Administrative Authority for the designation of buildings in
classes according to occupancy.
3 .
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(Sec. 21-3 B)
30. Building Drain - That part of the lowest piping of a drainage
system which received the discharge from soil, waste and other
drainage pipes inside the walls of the building and conveys it to
the building sewer beginning 3 feet outside the building wall.
31. Building Drain-Combined - A building drain which conveys
both sewage and storm water or other dr�.inage.
32. Buil.ding Drain-Sanitary - A buil.ding drain which
conveys sewage only.
33 . Building Drain-Storm - A building drain which conveys
storm water or other drainage but no sewage.
34. Building 5ewer - That part of the drainage system which
extends from the end of the building drain and Conveys its discharge
to a public sewer, private sewer, individual sewage-disposal system,
or other point of disposal.
35. Building Sewer-Combined - A building sewer which conveys
both sewage and storm water or other drainage.
36 . Building 5ewer-5anitary - A building sewer which conveys
sewage only.
37. Building 5ewer-Storm - A building sewer which conveys
storm water or other drainage but no sewage .
38. Building Subdrain - That portion of a drainage system
which does not drain by gravity into the building sewer.
39 . Building Trap - A device, fitting, or assembly of fittings
installed in the building drain to prevent circulation of air between
the drainage system of the buil.ding and the building sewer.
40 . Cesspool - A lined and covered excavation in the ground
which received the discharge of domestic sewage or other organic wastes
from a drainage system, so designed as to retain the organic matter
and solids, but permitting the liquids to seep through the bottom
and sides .
41. Circuit Vent - A branch vent that serves two or more
traps and extends from the downstream side of the highest fixture
connection of a horizontal branch to the vent stack.
4.
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(Sec. 21-3 B)
42 . Code - These regulations, subsequent amendments thereto,
or any emergency ru].e or regulation which the Inspector having
jurisdiction may lawfully adopt .
43. Combination Fixture - A fixture combining one sink and
laundry tray or a two or three compartment sink or l.aundry tray
in one unit.
44. Combined Building Drain - 5ee Building Drain-Combined.
45. Combined Building 5ewer - See Building Sewer-Combined.
46 . Combination 6Vaste and Vent 5ystem - A specially designed
system of waste piping embodying the horizontal wet venting of one or
more sinks or floor drains by means of a common waste and vent pipe
adequately sized to provide free movement of air above the flow line
of the drain.
47. Clinic Sink (Bedpan Hopper) - A sink designed primarily
to receive wastes from bedpans provided with a flush rim, integral
trap with a visible trap seal, having the same flushing and cleansing
characteristics as a water closet.
48. Common Vent - A vent connecting at the junction of two
fixture drains and serving as a vent for both fixture drains .
49 . Conductor - See Leader.
50 . Continuous Vent - A vertical vent that is a continuation
of the drain to which it connects .
51. Continuous Waste - A drain from two or more fixtures
connected to a single trap.
52 . Cross Connection - Any physical connection or arrangement
between two othezwise separate piping systems, one of which contains
potable water and the other either water of unknown or questionable
safety or steam, gas, or chemical whereby there may be a flow from
one system to the other, the direction of flow depending on the
pressure differential between the two systems . (5ee Backflow and
Back-Siphonage. )
53. Dead End - A branch leading from a soil, waste, or vent
pipe, building drain, or building sewer, and terminating at a
developed length of 2 feet or more by means of a plug, cap, or
other closed fitting.
5 .
� �
(Sec. 21-3 B)
54 . Department Having Jurisdiction - See Administrative
Authority.
55. Developed Length - The length of a pipe line measured
along the center line of the pipe and fittings.
56. Diameter - The nominal diameter as designated
commercially.
57. Double Offset - Two changes of direction installed in
succession or series in a continuous pipe.
58 . Downspout - 5ee Leader.
59 . Domestic Sewage - The water-borne wastes derived from
ordinary living processes .
60 . Drain - Any pipe which carries waste water or water-borne
wastes in a building drainage system.
61. . Drain Pan - A drain pan, or a safe pan, in a waterproof
pan placed under such fixtures as stal.l showers , floor drains , aerating
sprays to prevent seepage to lower floors.
62 . Drainage Pipe- See Drainage System.
63. Drainage 5ystem - Includes all the piping, within public
or private premises , which conveys sewage, rain water, or other
liquid wastes to a point of disposal. It daes not include the mains
of a public sewer system or private or public sewage-treatment or
disposal plant. Neither does this apply to plumbing appliances or
devices that are covered by standards or which are acceptable to the
Inspector.
64 . Drainage System, Buil.ding Gravity - A drainage system
which drains by gravity into the building sewer.
65. Drainage 5ystem, 5ub-Building - See Building 5ubdrain.
66. Dry Well - See Leaching Well.
67 . Dual Vent - See Common Vent.
68. Durham 5ystem - A term used to describe soil or waste
systems where all piping is of threaded pipe, tube, or other such rigid
construction, using recessed drainage fittings to correspond to the
types of piping.
69 . Dwell.ing Unit - One or more rooms with provision for
living, sanitary and sleeping facilities arranged for the use of
one family or individual.
6 .
� �
(Sec. 21-3 B)
70 . Ef£ective Opening - The minimum cross-sectional area at
the point of water supply discharge, measured or expressed in terms
of (1) diameter of a circle, or (2) if the opening is not circular,
the diameter of a circle of equivalent cross-sectional area.
71. Engineer - Except where otherwise indicated shall mean
City Engineer of the City of Cape Girardeau, Missouri .
72. Existing Work - A plumbing system or any part thereof
installed prior to the effective date of this Code.
73. Final Inspection - Final inspection, as applied to
plumbing shall mean inspection of the complete installation including
the setting and connection of all fixtures , piping, equipment
appurtenances, and apparatus ready for its intended use.
74. Fire Line - A system of pipes and equipment used
exclusively to supply water for extinguishing fires .
75. Fixture - See Plumbing Fixture.
76. Fixture Branch - A pipe connecting several fixtures .
77. Fixture Drain - The drain from the trap of a fixture to
the junction of that drain with any other drain pipe.
78. Fixture 5upply - The water supply pipe connecting a
fixture to a branch water supply pipe or directly to a main water
supply pipe.
79 . Fixture Unit (Drainage - d. f.u. ) - A measure of the
probable discharge into the drainage system by various types of
plumbing fixtures . The drainage fixture-unit value for a particular
fixture depends on its volume rate of drainage discharge, on the time
duration of a single drainage operation, and on the average time
between successive operations .
80 . Fixture Unit (Supply - s. f.u. ) - A measure of the
probable hydraulic demand on the water supply by various types of
plumbing fixtures. The supply fixture-unit value for a particular
fixture depends on its volume rate of supply, on the time duration
of a single supply operation, and on the average time between successive
operations .
81. Flood Level - See Flood Level Rim.
82. Flood Level Rim - The edge of the receptacle from which
water overflows.
7 .
� �
(5ec. 21-3 B)
83. Flooded - The condition which results when the liquid
in a container or receptacle rises to the flood-level rim.
84, Floor Drain - A floor drain is a drain installed to
collect washings or surplus waste water from a floor surface.
85. Flow Pressure - The pressure in the water supply pipe
near the fauCet or water outlet whil.e the faucet or water outlet is
wide-open and flowing.
86. Flushing Type Floor Drain - A floor drain which is
equipped with an integral water supply, enabling flushing of the
drain receptor and trap.
87� Flush Value - A device located at the bottom of a tank
for flushing water cl.osets and similar fixtures .
8g. Flushometer Valve - A device which discharges a
predetermined quantity of water to fixtures for flushing purposes and
is closed by direct water pressure.
$9,. Frostproof Closet - A hopper with no water in the bowl
and with the trap and water supply control valve located below
frost line.
9d . Garage Trap - 5ee Interceptor.
�1• Generally Accepted Standards - A specification, standard,
rule, guide, or procedure in the field of construction or related
thereto, generally recognized and aCcepted as authoritative.
92 •. Grade - The fall (slope) of a line of pipe in reference
to a horizontal plane. In drainage it is usually expressed as the
fall in a fraction of an inch per foot length of pipe.
93 • Grease Interceptor - See Interceptors .
94. Grease Trap - 5ee Interceptor.
95. Hangers - See Supports .
96 . Horizontal Branch Drain - A drain branch pipe extending
laterally from a soil or waste stack or building drain, with or
without vertical sections or branches, which receives the discharge
from one or more fixture drains and conducts it to the soil or waste
stack or to the building drain.
97. Horizontal Pipe - Any pipe or fitting which makes an
angle of less than 45 degrees with the horizontal.
8.
� �
(Sec. 21-3 B)
98. Hot Wate� - Water at a temperature of not less than
120 degrees F.
99. House Drain - See Building Drain.
100 . House 5ewer - See Building Sewer.
101. House Trap - See Building Trap.
102. Individual Sewage Disposal System - A system for disposal
of domestic sewage by means of a septic tank, cesspool. or mechanical
treatment, designed for use apart from a public sewer to serve a
single establishment or building.
103, Indirect Waste Pipe - A waste pipe which does not connect
directly with the drainage system, but which discharges into the
drainage system through an air break or air gap into a trap, fixture,
receptor or interceptor.
104. Zndividual Vent - A pipe installed to vent a fixture
drain. It connects with the vent system above the fixture served
or terminates outside the building into the open air.
105. Individual Water Supply - A supply other than an approved
public water supply which serves one or more families .
106 , Industrial Wastes - Liquid or liquid borne wastes
resulting from the processes employed in industrial and commercial
establishments.
1.07. Insanitary - Contrary to sanitary principles - injurious
to health.
i08. Inspector - Plumbing Inspector
�09 • Installed - Altered, changed or a new installation.
110 . Interceptors - A device designed and install.ed so as to
separate and retain deleterious, hazardous, or undesirable matter
from normal wastes while permitting normal sewage or liquid wastes
to discharge into the drainage system by gravity.
��1•. Lateral 5ewer - A lateral sewer is any sewer designed to
receive and convey the drainage from two or more house or building
sewers but does not receive the drainage from any other lateral sewer.
Lateral sewers shall be a minimum of 6 inches diameter.
112. Lawn 5prinkling Systems - A lawn sprinkling system is a
system for supplying water to spray lawns , golf links , parks and the
like.
9 .
� �
(Sec. 21-3 B)
113 . Leaching Well or Pit - A pit or receptacle having
porous walls which permit the contents to seep into the ground.
114. Leader - A vertical drainage pipe tor conveying storm
water from roof or gutter drains to the building storm drain,
combined building sewer, or other means of disposal.
115. Liquid Waste - The discharge from any fixture, appliance,
area or appurtenance, which does not contain fecal matter.
116 . Load Factor - The percentage of the tatal connected
fixture unit flow which is likely to occur at any point in the
drainage system.
.117. Local Ventilating Pipe - A pipe on the fixture side of
the trap through which vapor or foul air is removed from a fixture.
118. Looped Vent - A system of venting which is connected
above the flow line of the building drain. The looped vent must be
connected into the building drain at least five (5) feet downstream
from any waste connection.
119 , Main - The principal. pipe arte�y to which branches may
be connected.
120, Main Sewer - 5ee Public 5ewer.
121. Main Vent - The principal artery of the venting system
to which vent branches may be connected.
122• Master Drainlayer - A Master Drainl.ayer is a qualified
and licensed person who assumes responsible charge and direction of
other persons in the installation of drains and sewers, and is
skilled in the planning, superintending, and installing of sewer
and drain facilities .
].23. Master Plumber - A Master Plumber is a qualified and
licensed person who assumes responsible charge and direction of other
persons in the install.ation of plumbing and drainage, and is skilled
in the planning, superintending, and installing of plumbing and
drainage.
124. Multiple Dwelling - Building containing two or more
dwelling units .
10 .
� �
(Sec. 21-3 B)
125 . Minor Repairs - The term minor repairs shall be
construed to mean repairs within the interior of any building to
leaks in drains , pipes , traps and cocks, opening waste or supply
pipe, traps or drains, and repairing broken tixtures or frozen pipes
or the opening or cleaning of privately owned service sewer lines .
126 . Non-Potable Water - Water not safe for drinking, personal
or culinary use.
127 . Nuisance - Public nuisance as known at common law or
in equity jurisprudence; whatever is dangerous to human life or
detrimental to health; whatever building, structure, or premises is
not sufficiently ventilated, sewered, drained, cleaned, or lighted,
in reference to its intended or actual use; and whatever renders the
air or human food or drink or water supply unwholesome.
128 . Offset - A combination of elbows or bends which brings
one section of the pipe out of line but into a line parallel with
the other section.
129 . Oil Interceptor - See Interceptor.
13b . Person - A natural person, his heirs, executors,
administrators or assigns, and includes a firm, partnership or
corporation, its or their successors or assigns. Singular includes
plural; male includes female.
131. Pitch - See Grade.
132. Plumbing - The practice, material.s, and fixtures used
in the installation, maintenance, extension, and alteration of all
piping, plumbing fixtures, plumbing appliances, and plumbing
appurtenances in connection with any of the fol.lowing: Sanitary
drainage or storm drainage facilities and venting system and the
public or private water supply systems , within or adjacent to any
building, structure, or conveyance; also the practice and materials
used in the installation, maintenance, extension or alteration of
storm water, liquid waste, or sewerage, and water supply systems of
any premises to their connection with the public water supply system
or sewer system or other acceptable disposal facility.
The scope of this standard does not include: gas piping
systems; chilled water and condenser piping in connection with
11.
� �
(Sec. 21-3 B)
refrigeration and space cooling systems ; process piping systems; and
domestic appliances other than plumbing appliances ; except that the
main water piping to and the main drainage piping from such systems
and equipment are included within the scope of this standard.
133 . Plumbing Appliance - Any one of a special class of
plumbing fixture which is intended to perform a speCial plumbing
function. Its operation and/or control may be dependant upon one
or more energized components , such as motors , controls , heating
elements, or pressure or temperaturesensing elements . Such fixtures
may operate automatically through one or more of the following
actions: a time cycle, a temperature range , a pressure range,
a measured volume or weight; or the fixture may be manually adjusted
or controlled by the user or operator.
134. Plumbing AppurtenanCe - A manufactured device, or a
prefabricated assembly, or an on-the-job assembly af component
parts , and which is an adjunct to the basic piping system and plumbing
fixtures. An appurtenance demands no additional water supply, nor
does it add any discharge load to a fixture or the drainage system.
It is presumed that it performs some useful function in the operation,
maintenance , servicing, economy, or safety of the plumbing system.
135 . Plumbing Fixtures - A receptacle or device which is either
permanently or temporarily connected to the water distribution system
of the premises, and demands a supply of water therefrom, or it
discharges used water, liquidborne waste materials, or sewage either
directly or indirectly to the drainage system of the premises ,
or which requires both a water supply connection and a discharge to
the drainage system of the premises . Plumbing appliances as a
special class of fixture are further defined.
136 . Plumbing Inspector - See Inspector.
137. Plumbing System - Includes the water supply and distribution
pipes , plumbing fixtures and traps, soil, waste and vent pipes ;
sanitary and storm drains and building sewers , including their
respective connections , devices and appurtenances to an approved
point of disposal.
138. Pool - 5ee Swimming Pool.
12 .
� �
(Sec. 21-3 B)
139 . Potal�le Water - Water free trom impurities present in
amounts suf£icient to cause disease or harmful physiological effects
and contorming in its bacteriological and chemical quality to the
requirements ot the Publ.ic Health Service Drinking Water Standards
or the regulations of the public health authority having
jurisdiction.
140 . Private or Private Use - In the classification of plumbing
fixtures, private applies to fixtures in residences and �.partments
and to fixtures in private bathrooms of hotels as well as similar
installations in other buildings where the fixtures are intended for
the use of a family or an individual.
1.41. Private Sewer - A sewer, serving two or more buildings,
privately owned, and not directly controlled by public authority.
142. Public or Public Use - In the classifiCation of plumbing
fixtures, pub lic applianCes to fixtures in general toil.et rooms
of schools, gymnasiums, hotels, railraad stations, public buildings,
bars, public comfort stations, and other installations (whether pay
or free) where a number of fixtures are installed so that their use
is similarly unrestricted.
143. Public Official - See Administrative .Authority.
144. Public 5ewer - A common sewer directly controlled by
public authority.
145 . Public Water Main - A water supply pipe for public use
controlled by public authority.
146 . Receptor - A fixture or device which received the
discharge from indirect waste pipes .
].47. Relief Vent - An auxiliary vent which permits additional
circulation of air in or between drainage and vent systems .
148 . Return Offset - A double offset installed so as to
return the pipe to its original alignment.
149 . Revent Pipe - See Individual Vent.
150. Rim - An unobstructed open edge of a fixture..
151. Riser - A water supply pipe which extends vertically one
full story or more to convey water to branches or to a group of fixtures.
13 .
� �
(Sec. 21-3 B)
152. Roof Drain - A drain installed to receive water collecting
on the surface of a roof and to discharge it into a leader or a
conductor.
153 . Roughin-in - The installation o£ a11 parts of the
plumbing system which can be coznpleted prior to the installation of
fixtures . This includes drainage, water supply, and vent piping,
and the necessary fixture supports .
154. Safe Waste - See Indirect Waste.
155. Sand Interceptors - See Interceptors.
156 . 5and Trap - See Interceptors .
157. Sanitary Sewer - A sewer which carries sewage and
excludes storm, surface and ground water.
158. 5econd Hand - Second hand as applied to material or
plumbing equipment is that which has been installed, and has been
used, removed and passed to another ownership or possession.
159. 5econdary 5ewage Treatment - 5econdary sewage treatment
refers to the various approved processes designed to stabilize the
dissolved and suspended organic matter by oxidation such as but not
limited to, filters , activated sludge, subsurface irrigation and
tiltration, after the sewage has received primary treatment.
160 . Separator - See Interceptor.
161. Septic Tank - A water-tight receptacle which receives
the discharge of a building sanitary drainage system or part thereof,
and is designed and constructed so as to separate sol.ids from the
liquid, digest organic matter through a period of detention, and
allow the liquids to discharge into the soil, outside of the tank
through an absorption field or sand filter system.
162 . 5ewage - Any liquid waste containing animal or vegetabl.e
matter in suspension or sol.ution, and may include liquids containing
chemicals in solution.
163. 5ewage Ejectors - A device tor lifting sewage by
entraining it in a high velocity jet of steam, air or water.
164 . Sewage Interceptors - A sewage interceptor is a weir, orifice ,
or other device in an open ditch or creek bed to intercept the dry
weather flow of sewage.
14 .
� �
(Sec. 21-3B)
165. Sewage Treatment Plant - A sewage treatment plant
consists of structures and appurtenances which receive the
discharge of a sanitary drainage system, designed to bring about a
reduction in the organic and bacterial content of the waste so
as to render it less offensive or dangerous , incl.uding septic tanks
with absorption trenches or sand filters.
166. Side Vent - A vent connecting to the drain pipe through
a fitting at an angle not greater than 45 degrees to the vertical.
167. Size of Pipe and Tubing - See Diameter.
1.68. Slope - 5ee Grade.
169 . 5oi1 Pipe - A pipe which conveys sewage containing
fecal matter to the building drain or building sewer.
170. Soi1 Vent - See Stack Vent.
171. Special Wastes - Waste which require special treatment
before entry into the normal plumbing system.
172. 5pecial Waste Pipe - Pipes which convey special wastes .
173. Stack - A general term for any vertical line of soil,
waste, vent, or inside conductor piping except vertiCal branches
which do not extend through the roof and which pass through less
th��n two stories before being reconnected to a vent stack or stack vent.
174. Stack Group - A group of fixtures located adjacent to
the stack so that by means of proper fittings , vents may be reduced
to a minimum.
1.75 . 5tack Vent - The extension of a soil or waste stack
above the highest horizontal drain connected to the stacic.
176 . 5tack Venting - A method of venting a fixture or
fixtures through the soil or waste stack.
177. Sterilizer, Boiling Type - A fixture (nonpressure type)
used for boiling instruments, utensils , and/or other equipment
(used for disinfection) and may be portable or connected to the
plumbing system.
178 . Sterilizer Instrument - 5ee Sterilizer, Boiling Type.
179 . Sterilizer, Pressure Instrument Washer-Sterilizer - A
fixture (pressure vessel) designed to both wash and sterilize
instruments during the operating cycle of the fixture.
15 .
� �
(Sec. 21-3 B)
180. Sterilizer, Pressure (Autoclave) - A fixture (pressure
vessel) designed to use steam under pressure for sterilizer. See
Sterilizer, Boiling Type .
1.81. 5terilizer Vent - A separate pipe or stack, indirectly
connected to the building drainage system at the lower terminal., which
receives the vapors from nanpressure sterilizers, ar the exhaust
vapors from pressure sterilizers, and conducts the vapor directly
to the outer air. Sametimes called vapor, steam, atmosphere or
exhaust vent.
182. Sterilizer, Water - A device for sterilizing water and
storing sterile water.
183. 5ti11 - A device used in distilling liquids .
184. 5torm Drain - See Building 5torm Drain.
185. 5torm Sewer - A sewer used for Conveying rain water,
surface water, condensate, cooling water, or similar liquid wastes.
186. 5ubsoil Drain - A drain which collects subsurface or
seepage water and Conveys it to a place of disposal.
187. 5ump - A tank or pit, which reCeives sewage or liquid
waste, located below the normal grade of the gravity system and which
must be emptied by mechanical means .
188. Sump Pump - A permanently installed mechanical device
other than an ejector for removing sewage or liquid waste from a sump.
189 . Supports - Devices for supporting and securing pipe,
fixtures and equipment.
190 . Swimming Pool - Any structure, basin, chamber or tank
containing an artificial body of water for swimming, diving, or
recreational bathing and having a depth of two feet or more at any
point.
191. Trap - A fitting or device which provides a liquid seal
to prevent the emission of sewer gases without materially affecting
the flow of sewage or waste water through it.
192. Trap Seal - The vertical distance between the crown
weir and the top of the dip of the trap.
16 .
� �
(Sec. 21-3 B)
193. Trunk 5ewer - A trunk sewer is any sewer designed to
receive and convey the drainage from two or more lateral sewers,
(it may or may not receive drainage from building sewers) and
empties into a main sewer.
194. Vacuum - Any pressure less than that exerted by the
atmosphere.
195. Vacuum Breaker - See Backf low Preventer.
196. Vacuum Breaker, Non-Pressure Type (Atmospheric) - A
vacuum breaker which is not designed to be subject to static line
pressure.
197. Vacuum Breaker, Pressure Type - A vacuum reaker
designed to operate under conditions of static line p ssure.
198. Vent Pipe - Part of the vent system.
1.99 . Vent Stack - A vertical. vent pipe install d to provide
circulation of air to and from the drainage system and which extends
through one or more stories.
200. Vent System - A pipe or pipes installed t provide a
flow of air to or from a drainage system or to provide a circulation
of air within such system to protect trap seals from s 'phonage and
back pressure.
201 . Vertical Pipe - Any pipe or fitting which makes an
angle of 45 degrees or less with the vertical.
202. Wall Hung Water Closets - A water closet installed in
such a way that no part of the water closet touches the floor.
203. Waste - Liquid waste and industrial waste.
204. Waste Pipe - A pipe which conveys only waste.
205. Water Distributing Pipe - A pipe within the building or
on the premises which conveys water from the water-service pipe to
the point of usage.
206 . �Aater Lifts - See Sewage Ejectors.
207. Water Main - A water supply pipe for public use.
208 . Water Outlet - A discharge opening through which water
is supplied to a tixture, into the atmospher� (except into an open
tank which is part of the water supply system) , to a boiler or heating
system, to any devices or equipment requiring water to operate but
which are not part of the plumbing system.
17.
� �
(Sec. 21-3 B)
209 . Water Riser Pipe - See Riser.
210 . Water 5ervice Pipe - The pipe from the water main or
other source of potable water supply to the water distributing
system of the building served.
211. Water Supply System - The water service pipe, the water
distributing pipes, and the necessary connecting pipes , fittings ,
control valves, and all appurtenances in or adjaCent to the building
or premises .
212 . Wet Vent - A vent which reCeives the discharge of wastes
other than from water closets .
213. Yoke Vent - A pipe connecting upward from a soil or
waste stack to a vent stack for the purpose of preventing pressure
changes in the stack.
Sec. 21-4. Conditions Upon Which Drainage and Plumbing May Be
Connected With a Public Sewer.
A permit shall not be issued. by the inspector authorizing the
plumbing or drainage system of any building to be connected with a
public sewer if presently not connected to a public or private sewer,
until an inspection of the �lusnbing and drainage system of such
building has been made by the inspector. If, upon inspection, the
system is found to conform with the provisions of this Code, a
permit to make such a connection may be issued. The Office of
Plumbing and 5ewer Inspection shall. be paid a fee of Two Dollars
($2 .00) for each inspection made.
Sec. 21-5. Sewer and Water Supply nata.
A. Public Sewer. Plans for new plumbing systems or alterations
to existing plumbing systems shall be accompanied by a diagram showing
the relative elevation of the lowest fixture and the top of the
public sewer referred to the established datum of the City of Cape
Girardeau sewer district when such public sewer is available, or private
sewer district outside the City of Cape Girardeau public works . The
plans shall show the size, number and location of all new sewer
connections .
18.
� �
(Sec. 21-5)
B. Public Water Main. When the installation of a water
distribution system or replacement or alteration of a water supply
system is contemplated, the plumbing plans shall show the location
and sizes of all water lines and branches involved, the fixtures
or other devices to be supplied, and the minimum water pressure
in the main into which the connection wi11 be made .
C. Identical Structures . The same set of plumbing or water
supply plans and specifications may be used for two or more
buildings or structures when the buildings are exactly similar
and are located on adjoining lots under the same ownership, provided
the applications for permission to construct or alter are filed
simultaneously.
Sec. 21-6 . Inspections and Test Not Required.
Tests or inspections shall not be required where a plumbing
system or part thereof is set up for exhibition purposes and is not
used for toilet purposes and is not directly connected to a water
supply or sewerage system.
Sec. 21-7. Defective Plumbing and Drain Laying.
A. Condemnation. When the inspector, upon examination of
the plumbing and drainage system of any building within the City,
finds that either or both of the systems are in such a condition
as to permit the emission or discharge of sewer gas into such
building, or to cause the cellar or basement of such building to be
wet or damp by reason of leakage of water or other liquid from the
plumbing or drainage system of an adjoining building or premises,
it shall be the inspector's duty to promptly notify the owner in
writing of such building or premises on which the defective plumbing
or drainage exists , to remove or repair said plumbing or drainage
system within five (5) days iznmediately following the date of mailing
of such notice. In the event the necessary repairs have not been
made within the said five (5) days, and in the opinion of the inspector
an immediate danger to public health exists by reason of the
occupation of the said building or premises , he shal.l immediately
19 .
� �
(Sec. 21-7 A)
advise the City Manager who is hereby authorized and empowered to
order and require the occupants to vacate the same forthwith. He
shall. cause to be posted at each entrance to such building or
premises a notice reading as follows:
"This building is unsafe and its use or occupancy
has been prohibited by the City of Cape Girardeau,
Missouri, "
and it shall be unlawful for any person to enter such building
or structure except for the purpose of making the required repairs.
B . Test. The plumbing of any building which the inspector
has reason to believe has become defective is subject to such
tests as may be provided for in this Code.
Sec. 21-8. Penalties .
A person violating a provision of this Code shall, upon
conviction, be fined not less than Fifteen Dollars ($15.00) nor
more than Five Hundred Dollars ($500 . 00) or be imprisoned for not
more than ninety (90) days , or both. Each day a violation continues
shall be deemed to be a separate offense.
Sec. 21-9 . Office of Plumbing and Sewer Inspectian.
A. Establishment. There is hereby established and created
within the Department of Pub lic Works , an "Office of P lumbing and
5ewer Inspection" , which office is charged with the enforcement of
the provisions of this Code, except as otherwise provided herein or
in the Code of Ordinances of the City of Cape Girardeau, Missouri .
The Office of Plumbing and Sewer Inspection shall be under the
supervision of an officer who shall be known as the "Plumbing
Inspector" , which officer shal.l be appointed by the City Manager.
That ofticer shal.l be at least twenty-five (25) years of age, and a
resident of the City of Cape Girardeau, Missouri . The inspector
shall. carry proper credentials of his offiCe, upon exhibition of
which he shall have the right of entry during usual business hours
to inspect buildings and premises in performance of his duties .
20 .
� �
(Sec. 21-9 B)
B. Duties. It is the duty of the inspector to examine all
applications and plans of proposed plumbing or sewering and if the
same are in all respects found to be in conformity with the provisions
of this Code, he shall approve them. He shall investigate all cases
reported to him of imperfect work or material or sanitation. He
shall have the general supervision and direction of all employees
of the Office of Plumbing and Sewer Inspection. He shall cause an
inspection to be made of all new water and sewer connections and
approve all pexmits for excavations made for the purpose of making
or repairing the same in a manner and to the extent necessary to
carry out the provisions of this Code. He sha11 causP inspection
of existing plumbing as often as may be necessary. He shall see
that all plumbinq and sewer work is done in accordance with the
provisions of this Code and that the work is done by persons duly
authorized to do such work. He shall have the power to recommend
suspension or revocation under the Section "Revocation of Licenses" .
He shall keep an accurate record of all matters pertaining to the
duties of his office.
Sec. 21-10 . Violations .
A. Notice of Violations. When the inspector declares an
installation to be unlawful, the violator shal]. be notified
immediately. The notification shall be in writing and shall be
delivered to the permit holder, the person causing the violation,
or his legally authorized representative, or mailed to the last
known address of any of these persons . Notification shall not be
construed to be a condition precedent to the commencement of legal
action.
B. Immediate Compliance. Except as provided in Subsection C ,
the following violations require immediate compliance:
1. Failure to secure any required pl.umbing permit or
permits;
2. Operating as a plumbing contractor or as an installer
of plumbing without meeting the requirements of the Office of
Plumbing and Sewer Inspection and this Code;
21.
� �
(Sec. 21-10 B)
3. Failure to maintain a plumbing system in a safe and
sanitary condition;
4. Creating a nuisance or a hazard endangering health
or safety;
5 . Failure to post required certificate of insurance or
reinspection.
C. Ten Day Compliance.
l. New construction. Except as speCified in Section B,
legal action may be directed against violators who do not comply
within ten (10) departmental working days after the issuance of a
notice of violation. The notice shall be issued to violators by
the Office of Plumbing and Sewer Inspection.
2. Existing 5tructures . The inspeCtor has c�is�retion wi�h
respect to violations on existing structures . When the cooperation
of other departments of the City of Cape Girardeau is necessary to
prosecute a violator, the inspector may postpone his compliance date
to coincide with the compliance date of the other department;
otherwise, except as specified in Section B, legal action may be
directed against violators who do not comply within ten (10)
departmental working days after the issuance of a notice of violation.
D. Stop Work Order. Upon notice from the inspector that work
in any building or structure is prosecuted contrary to the provisions
of this Code or in an unsafe or dangerous manner, such work shall be
immediately stopped. The stop work order shall be in writing and shal
be given to the owner of the property involved or the owner's agent,
or to the person doing the work, and shall state the conditions
under which the work may be resumed.
E. Penalties. In addition to the penalties presCribed herein,
the inspector may take such other action, either at 1aw or in
equity that he deemds necessary in order to execute and enforce the
provisions ot this Code .
Sec. 21-11. Board of Examiners .
A. Creation. There is hereby created a Board of Examiners of
Plumbers consisting of three (3) members, one of whom shall be the
22 .
� �
(Sec. 21-11 A)
Plumbing Inspector, who shall be the ex-officio Chairman of the Board
of Examiners; a second member, who shall be a master plumber; a
third member, who shall be a journeyman plumber.
B. Term, Appointment, Payment, Qualifications. The second and
third members of the Board shall be appointed by the Mayor and approved
by the Council for a term of one (1) year and shall be paid from the
treasury of the City, the same as other officers , in such sums as
the Council may authorize; provided, that in no event shall the sums
paid the second and third members exceed the amount paid for
certificates as provided in Section 21-12 (D) hereof. The second and
third members of the Board shall have at least six (6) years
practical experience as plumbers and be actually engaged in or
working at the plumbing business at the time of their appointment.
C. Removal. The second and third members of the Board, being
the master plumber and the journeyman plumber, may be removed by a
majority vote of the City Council for good cause.
D . Meetings . The Board of Examiners shall meet regularly at
least once each three (3) months for the purpose of examining all
applicants who have filed applications to be examined at least
two (2) weeks before the scheduled meeting. Applicants scheduled for
examination at the meetings shall be notified in writing at least
three (3) days prior to the date of the meeting. Special meetings
of the Board may be held on the call of the Chairman or a majority
of the membership thereof and the call of the meeting sha11 include
the time, place and purpose of the meeting. Examinations may be
conducted by any two (2) members of the Board.
E. Duties . It shall be the duty of the Board of Examiners
as created by this section to examine a11 applicants for a certificate
of competency in the grade, or grades, specified in the application,
as to their knowledge of and ability to perform the duties and
services of the grade for which the application is made. The
results of such examinations will be certified to the Department of
Public Works , where the certified results will become a permanent
record. As a result of the aforesaid examinations , the Board of
23.
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(Sec. 21-11 (E) )
Examiners may, when satisfied as to the competency and ability of
the applicant, authorize the inspector to issue a certificate of
competency to the applicant.
Sec. 21-12 . Licenses and Certification.
A. Licenses Required. A person who is not a licensed master
plumber or a licensed journeyman plumber or a registered plumber
apprentice or a licensed master drainlayer shall not engage in or
perform work on installing, altering or repairing facilities in a
building or structure, or for any building or structure and sha11
not engage in or perform the work of installing the sanitary or
storm building sewer, starting five (5) feet beyond the building
foundation wall, or any work concerning the installation of sanitary
or storm, trunk, main and lateral sewers in public property,
recorded easements or on private property„ exCept as otherwise provided
in this Code.
B. Classifications Requiring Examination. Grades or classifications
of operations for which the Board of Examiners shall hold examinations
are:
1. Master Plumber;
2 . Journeyman Plumber;
3. Master Drainlayer.
C. Classifications Requiring Registration. The following
grades or classifications shall register with the Plumbing Inspector:
l. Plumbing Contractors;
2 . Vendors of plumbing fixtures and supplies ;
3. Apprentice Plumbers.
D. Qualifications.
1. Master Plumber. The applicant for a master plumbers
license shall be at least twenty-one (21) years of age and shall
have at least two (2) years experience as a licensed �ourneyman
plumber theretofore licensed in acCordance with the provisions
of this Code or under laws or regulations requiring similar
qualifications or in lieu thereof, possess such experience or
training as is the equivalent thereto. Equivalent training and
experience shall mean, (1) a degree in engineering from an accredited
24 .
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(Sec. 21-12 (D) (1) )
college or university, and two (2) years of experience in the design,
planning, and installation of plumbing systems, house drainage and
house ventilation, or (2) the satisfactory completion of a two (2)
year course in practical plumbing, house drainage and house ventilation
at a recognized trade or technical school, and four (4) years
experience in the design, planning and installation of plumbing
systems, house drainage and house ventilation. The applicant shall
also possess the ability to direct other persons in the performance
of plumbing work, and shall be skilled in planning, designing and
installing plumbing fixtures and facilities.
2 . Journeyman Plumber. The applicant for a journeyman
plumbers license shall be at least twenty-one (21) years of age and
shall have at least four (4) years experience as an apprentice under
the direction and supervision of a master plumber or a journeyman
plumber licensed under the provisions of this Code or under laws or
regulations requiring similar qualifications , or, in lieu thereof, the
applicant shall possess such training or experience as is the equivalent
thereto. Equivalent training and experienCe sha11 mean a degree
in engineering from an accredited college or university or two (2)
years experience in the design, planning and installation of plumbing
systems, house drainage and Y�ouse ventilation, or the satisfactory
completion of a two (2) year course in practical plumbing, house
drainage, and house ventilation at a recognized trade or technical
school.
3. Plumber Apprentice. A plumber apprentice as that term
is used in this Code means a person undergoing training or
instruction in plumbing and who has registered with the Board of
Plumbing and Sewer Inspection as a plumber apprentice setting
forth in such requirement his name, age, and address .
4. Master Drainlayers . The applicant for a master
drainlayers license shall be at least twenty-one (21) years of
age and shall have three (3) years experience in drain laying, or,
in lieu thereof, such experience or training as is the equivalent.
25.
� /�
(Sec. 12-12 (D) (4) )
Equivalent Training and experience shall mean a degree in engineering
from an accredited college or university and two (2) years
experience in the design, installation and planning of private and
public sewers. He shall also possess the ability to direct other
persons in the installation of drains and sewers and shall be
skilled in planning, designing and installing sewer and drain
facilities .
E. Fees. The annual fee for a certificate in a classification
herein listed is:
l. Plumbing Contractor, $5. 00 ; ..-
2. Master P lumber, $5. 00 ;
3. Master Drainlayer, $5.00 ;
4. Journeyman Plumber, $1.00 ;
5. Apprentice, No fee.
F. Expiration and Renewal . A license issued by the Board
shall expire on April 1 of the year following the year in which
it is issued and may be renewed upon the payment of the annual fee
in the amount provided in Subsection E immediately preceding this
section. Expired licenses may be renewed within thirty (30) days
after they expire upon the payment of the penalty of One Dollar ($1.00)
for Journeyman Plumber and Five Dollars ($5.00) for P�iaster Plumber
or Master Drainlayer or Plumbing Contractor, all without re-examination.
A licensee whose license has expired longer than thirty (30) days
shall be re-examined in the same manner as the initial examination
under this ordinance. An applicant failing to pass an examination
for a license may submit a new application fo� examination after the
passage of ninety (90) days after the date of the original examination,
accompanied by the examination fee provided herein. The fee shall not
be returned to any applicant who fails to pass the examination required.
The failure to secure a renewal license on or before the expiration
of the original license or within thirty (30) days thereafter shall
require the applicant for such license to be subject to re-examination
upon the same terms and conditions imposed upon new applicants.
26 .
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(Sec. 21-12 (G) }
G. Revocation-Suspension. The inspector may revoke a license
if obtained through nondisclosure, misstatement, or misrepresentation
of a material fact, or if a penalty has been imposed upon the licensee
under Sections 21-8 or 21-10 of this ordinance. Before a license
may be revoked, the licensee shall have notice in writing enumerating
the charges against him, and be entitled to a hearing by the Board
of Examiners not sooner thar. five (S) days from the receipt of the
notice . The licensee shall be given an opportunity to present
testimony, oral or written, and shall have the right of cross-
examination. All testimony shall be given under oath. The Board
shall have the power to administer oaths, issue subpoenas , and compel
the attendance of witnesses . The decision of the Board shall be
based upon the evidence produced at the hearing and made a part of
the record thereof. A person whose license has been revoked shall not
be permitted to apply for a new license within one (1) year from
the date of the revocation; and at the time of the application for
a new license, shall be required to be examined as though being
licensed for the first time. The Board shall have the authority to
suspend licenses for a period up to three (3) months.
H. Examination and Registration. Any person desiring to
engage in the business as a master plumber, journeyman plumber,
or master drainlayer, shall make written application to the Board
of Examiners for a certificate of competency. The application shall
be made on forms available at the office ot Plumbing and Sewer
Inspection and shall be accompanied by an examination fee of Ten
Dollars ($10. 00) . The applicant shall appear at the next regularly
scheduled meeting of the Board and shall undergo such examination
as the Board shall direct so as to establish the competency and
qualifications of the applicant. All examination,s given by the
Board of Examiners shall be standardized in nature and shall test the
qualifications of the applicant as to his ability to perform as
required by the Plumbing Code of the City of Cape Girardeau.
27.
4 7 �
(5ec. 21-12 (H) )
l, Examination for a Master Plumbers License. The
examination for a master plumbers license sha1.1 be an oral , written
and manual demonstration of the applicant' s ability, experience and
skill in the field of practical plumbing as may be necessary to
meet the qualifications required for master plumbers .
2 . Examination for a Master Drainlayers License. The
examination for a master drainlayer shall be an oral and written
examination of the applicant ' s ability, experience and skill in the
installation of house sewers and sewer lines beyond a point five (5)
feet outside a building, and the planning, designing, direction,
supervision and installation of public and private sewers.
3. Examination for Journeyman Plumber. The examination
for a journeyman plumber shall be an oral, written and manual.
demonstration of the applicant' s ability, experience and skill in
the installation, alteration, repair, dismantling and maintenance
of plumbing and drainage systems or parts the�eof generally.
I . Existing Certificate Holders . Persons , firms or corporations
engaged in or working at the business of plumbing, contractors ,
master plumber, or journeyman plumber at the time of the passage
of this ordinance shall continue working in that capaCity under
their certificates previously issued, without further examination.
J. Temporazy License. The Board may issue a temporary license
pending examination, provided the applicant holds a similar license
from an equivalent Board. Such permit shall not be valid for more
28.
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(Sec. 21-12 (J)
than sixty (60) days. If the Board finds through its investigation
that the applicant has been properly licensed by a City of the State
of Missouri, and in acquiring the license has passed an examination
equivalent to the examination given by the City of Cape Girardeau
and issuing a similar license, the Board may issue a regular
certificate of competency without further examination.
K. Bonds . A master plumber or master drainlayer or journeyman
plumber who shall desire to or anticipate that he will request the
issuance of plumbing permits in his own name, shall be required to
file with the City Clerk or other designated official, a surety bond
in the amount of Ten Thousand Dollars ($10 ,000 .00) . The bond
herein required shall be drawn by the City Attorney and shall
be conditioned upon and shall be given for a faithful observance of
all ordinances , laws and rules and regulations adopted for the
protection of the public health and safety pertaining to plumbing
and drain laying and shall indemnify the City of Cape Girardeau,
Missouri, or any other governmental agency or any other person for
any damage or injury sustained through the negligence of such master
plumber or master drainlayer or journeyman plumber, their servants,
agents or employees, in performing plumbing or drainlaying work
and shall indemnify the City of Cape Girardeau, Missouri, or any
other governmental agency or any person for any damage or injury
sustained resulting from the failure to perform plumbing or drainlaying
work in a careful and workman like manner in conformity with this
Code, for a period of two (2) years next thereafter.
L. Exception. Any permit required by this Code may be issued
to any person to do any work regulated by this Code in a single
f amily dwelling used exclusively for living purposes , including the
usual accessory buildings and quarters in connection with such
building, provided the person is the bonafide owner of such building
and that the same will be occupied by the owner. Any work performed
under a permit issued under this section shall be subject to all of
the applicable regulatory provisions of this Code in the same manner
that they would apply if the permit was issued to a l.icensed plumber
hereunder.
29 .
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(Sec. 21-12 (M) )
M. Use of Licensee 's name by another. A person having obtained
a plumbers or drainlayers license shall not allow his name to be
used by another person either for the purpose of obtaining permits ,
or for doing business or work under the license . Every person
licensed shall notify the Board of the address of his place of
business , and the name under which such business is carried on and
shall give immediate notice to the Board of any change in either.
N. The provisions of Section 21-12 , 21-13, and 21-14, shall
not apply to construction, reconstruction, repairs , maintenance ,
or operations of storm sewers or sanitary sewers by the City of
Cape Girardeau or a person under contract with the City of Cape
Girardeau to provide such construction, reconstruction, repairs,
maintenance, or operation.
Sec. 21-13 . 5upervision.
A. Plumbing Contractors . Any plumbing contractor or firm or
corporation engaged in the business of installing plumbing shall
employ a licensed master plumber or a licensed journeyman plumber
as a responsible official.
B. Drain Laying. Al1 installations of the sanitary or storm
building sewer, starting five (5) feet beyond the building foundation
wall (end of building drain) or any work concerning the installation
of sanitary or storm, trunk, main and lateral. sewers , in public
property, recorded easements or on private property shall be under
the general supervision of a master drainlayer, a journeyman plumber
or a master plumber.
C. Plumbing. All installations, altering or repairing of
facilities in a building or structure for the supply and distribution
therein of water for ordinary drinking, culinary and domestic purposes,
or facilities in a building for the removal of water borne wastes,
shall be under the general supervision of a master plumber, or a
journeyman plumber.
30 .
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(Sec. 21-13 (D) )
D. General Supervision. The supervising master plumber or
journeyman plumber or master drainlayer shall be responsible for the
work of any apprentice plumber and shall be on the site at the time
the City ' s Plumbing Inspections are made. Apprentice plumbers may
be used on installations provided certified master plumbers , or
journeyman plumbers or master drainlayers are employed on the
installation to inspect and direct the work of the apprentice
plumber on the site to insure proper and accurate work as prescribed
by the ordinance. Minor repairs may be made by a person not a master
plumber or a journeyman plumber or a master drainlayer.
E . Exceptions . The provisions of this Section sha11 not apply
to or include the installation, maintenance, extension or repair of
process drains , process drain facilities, process drainage systems
or piping drains , drainage systems or facilities for mechanical,
manufacturing, industrial, processing, refrigeration, heating, air
conditioning, sprinkler or sprinkling system purposes , or parts ,
materials, devices or appurtenances in connection therewith or for
the utilization or operation thereof, provided, however, the final
connection of any such process drain , process drain facilities,
process drainage systems , piping drains , drainage systems or
facility for mechanical, manufacturing, or industrial process line
which shall be connected to a drainage line containing fecal matter
or any other form of human waste shall be done by a licensed person
as stated herein.
Sec. 21-14. Permits.
A. Required. Except as provided in 5ection 21-12 (L) , no
owner, lessee or keeper of any structure or premises or any agent
thereof where such agent orders plumbing or drainlaying work, shall
cause or permit plumbing or drainlaying, except minor repairs , to
be done in or upon or about any building or premises until the person
proposing to do such work shall have first procured a permit from
the inspector authorizing it to be done, nor shall any person
commence any plumbing or drain laying work, except minor repairs , until
31.
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(Sec. 21-14 (A) )
he shall have obtained a permit from the inspector authorizing such
work to be done. The above provisions requiring permits shall apply
with equal force to plumbing or drain l.aying done in any private
structure, lot or premises at the command of the inspector, City
Manager, or other authorized officer of Board. No structure or
premises shall be connected with any sewer, public or private ,
without a permit.
B. Issued to Whom. A permit to install plumbing fixtures
and drains for any building may be issued to a regularly certified
and bonded plumbing contractor, or a master plumber. A permit to
install plumbing fixtures or drains for residential structures not
exceeding two (2) stories in height or eight (8) dwelling units per
building, may be issued to a regularly certified and bonded journeyman
plumber. A permit to install drains only for any building may be issued
to a regularly certified and bonded master drainlayer. Each permit
must be applied for. Blanket applications will not be received.
All work shall be done by or under the supervision of the person in
whose name the permit or permits required by this section are issued.
Permits must be on the grounds at all times while work is in progress
and must be shown to any police officer or other authorized
representative of the inspector.
C. Fees.
1. Generally . Permits and inspection fees shall be paid
to the inspector as set forth in this Code. The inspector shall
forthwith pay such fees to the Collector of the City of Cape
Girardeau, Missouri, to the credit of the General Revenue Fund.
2. Permit Fee. A permit fee of Two Dollars ($2. 00) shall
be charged for every permit issued by the inspector with the exception
of permits issued for extra inspections and fixtures . Any plumbing
or drain laying permit that is issued under this Code shall expire
within two (2) years from the date of issuance.
3. Inspection Fees . An inspection fee of Two Dollars ($2 .00)
shall be charged for each of the following inspections of initial
32 .
f �! �
(Sec. 21-14 (C) (3) )
installations or repairs: Building water connections to well,
cisterns, etc. , ma.in trunk and lateral sanitary sewers , main trunk
and lateral storm sewers, sanitary building sewer connections ,
storm building sewer connections , ground roughin, general roughin,
final septic tank absorption trench, filter beds .
4 . Plumbing Fixture Charge. There shall be a plumbing
fixture charge of Two Dollars ($2 .00) for each tixture installed.
5. In addition to permit and inspection fees, a charge of
Two Dollars ($2 .00) will be made for each opening which is provided
for future fixtures.
6 . Advisory or investigation inspections of any type shall
be made upon request or when deemed necessary by the inspector.
A fee of Two Dollars ($2. 00) shall be charged for each inspection
of this type.
7. The installation of all domestic hot water heaters,
whether heated with gas , electriCity, oil or other hot water heating
devices , shall require a permit and inspection. Hot water heaters
on new install.ations shall be subject to the Two Dollar ($2. 00)
fixture fee .
8. Inspection during installation shall be made on soil, waste,
vent and conceal lines which shall be knawn as roughin inspection.
There shall be one (1) roughin inspection durinq installation if all
soil, waste, vent and conceal supply lines can be tested and inspected
at one time; otherwise, an extra charge of Two Dollars ($2 .00)
will be made for each additional inspection.
9 . Final inspection of all work sha11 be made after
completion of the installation. There shall be one (1) final
(finish) inspection if the final irispection can be completed at
one time, otherwise an extra charge of Two Dollars ($2 .00) will be
made for each additional inspection.
10 . The estimated amount to cover inspection fees set
forth in the preceding paragraph of this section shall be paid when
the permit is issued. Extra or additional inspection fees shall be
paid upon completion of the work. The estimated amount to cover
inspection fees set forth in the following paragraphs of this section
33.
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(Sec. 21-14 (C) (10) )
shall be paid when the plans are approved and the permits issued.
In case the estimated amount is insufficient, the balance due shall
be paid upon completion of the work.
11. The building sewer from the building to the septic tank
or the trunk l.ine shall be inspected before any part of the sewer
pipe is covered.
12 . All filter trenches, absorption trenches, and filter
beds sha11 be inspected at a fee of Two nollars ($2 . 00) per inspection
as the work progresses and in accordance with the schedule outlined
below.
(a) Soil Absorption Trenches .
(1) Septic Tank .
(2) Completion of drain tile installation.
(b) Filter Trenches.
(1) Septic Tank .
(2) Completion of underdrain (bottom) tile installation.
(c) Filter Beds (Open) .
(1) Septic Tank .
(2) Completion of underdrain (bottom) tile installation.
(3) Completion of distribution (top) pipe installation.
(d) Filter Bed (Covered) .
(1) Septic Tank .
(2) Completion of distribution (bottom) tile installation.
(3) Completion of disbribution (top) pipe installation.
ARTICLE II. BASIC PLUMBING PRINCIPAL5
5ec. 21-15. Basic Plumbing Principals .
The following basic plumbing principals shall be followed:
A. All occupied premises shall have potable water. All premises
intended for human inhabitation, occupancy, or use shall be provided
with a supply of potable water. 5uch a water supply shall not be
connected with unsafe water sources, r�or shall it be subject to the
hazards of backflow or backsiphonage.
34 .
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(Sec. 21-15)
B. Adequate Water Required. Plumbing fixtures, devices, and
appurtenances shall be supplied with water in sufficient volume and
at pressures adequate to enable them to function properly and without
undue noise under normal conditions of use.
C . Hot Water Required. Hot water shall be supplied to all
plumbing fixtures which normally need or require hot water for
their proper use and function.
D . Water Conservation. Plumbing shall be designed and adjusted
to use the minimum quantity of water consistent with proper performance
and cleaning.
E. Safety Devices. Devices for heating and storing water shall
be so designated and installed as to guard against dangers from
explosion or overheating.
F. Use Public Sewer Where Available. Every building with
installed plumt�ing fixtures and intended for human habitation,
occupancy, or use, and located on premises where a public sewer is
on or passes said premises within one hundred fifty (150) feet shal.l
be connected to the sewer.
G. Required Plumbing Fixtures . Each family dwelling unit shall
have at least one water closet, one lavatory, one kitchen-type
sink, and one bathtub or shower to meet the basic requirements of
sanitation and personal hygiene .
Al1 other structures tor habitation shall be equipped with
sufficient sanitary facilities . Plumbing fixtures shall be made of
durable, smooth, nonabsarbent and corrosion resistant material and
shall be free from concealed foulin,q surfaces .
H. Drainage System. The drainage system shall be designed,
constructed and maintained to guard against fouling, deposit of
solids, and clogging, and with adequate cleanouts so arranged that
the pipes may be readily cleaned.
I . Durable Materials and Good Workmanship. The piping of the
plumbing system shall be of durable material, free from defective
workmanship and so designed and constructed as to give satisfactory
service for its reasonable expected life.
35.
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(Sec. 21-15)
J. Fixture 'I'raps . Each fixture directly connected to the
drainage system shall be equipped with a liquid seal trap.
K. Trap 5eals 5ha11 be Protected. The drainage system shall be
designed to provide an adequate circulation of air in all pipes with
no danger of siphonage, aspiration, or forcing of trap seals under
conditions of ordinary use.
L. Exhaust Foul Air to Outside. Each vent terminal shall extend
to the outer air and be so installed as to minimize the possibilities
of clogging and the return of foul air to the building.
M. Test the Plumbing System. The plumbing system shall be
subjected to such tests as wi11 effectively disclose all. leaks and
defects in the work or the material.
N. Exclude Certain 5ubstances From the Plumbing System. No
substance which will clog or accentuate clogging of pipes, produce
explosive mixtures, destroy the pipes or their joints, or interfere
unduly with the sewage disposal process shall be allowed to enter the
building drainage system.
O. Prevent Contamination. Proper protection shall be provided
to prevent contamination of food, water, steril goods, and similar
materials by backflow of sewage. When necessary, the fixture, device,
or appliance shall be connected indirectly with the building drainage
sys tem.
P. Light and Ventilation. No water closet or similar fiyture
shall be located in a room or compartment which is not properly
lighted and ventilated.
Q. Individual Sewage Disposal Systems. If water closets or
other plumbing fixtures are installed in buildings where there is no
sewer within a reasonable distance, suitable provision shall be made
for disposing of the sewage by some accepted method of sewage
treatment and disposal.
R. Prevent Sewer Flooding. Where a plumbing drainage system is
subject to back-flow of sewage from the public sewer, suitable
provision shall be made to prevent its overflow in the building.
S . Proper Maintenance. Plumbing systems shall be maintained in
a safe and serviceable condition from the standpoint of both
mechanics and health.
36 .
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(Sec. 21-15)
T. Fixtures Sha11 be Accessible. All plumbing fixtures shall be
so installed with regard to spacing as to be accessible for their
intended use and for cleansing.
U. Structural Safety. Plumbing shall be installed with due
regard to preservation of the strength of structural members and
prevention of damage to walls and other surfaces through fixture
usage.
V. Project Ground and 5urface Water. Sewage or other waste
shall not be discharged into surface or sub-surfaCe water unless it
has first been subjected to some acceptable form of treatment.
ARTICLE III. GENERAL REGULATIONS
Sec. 21-16 . General Regulations .
A. Public Provisions. These regulations are not intended to
interfere with, ahrogate or annul any other City ordinance, rule or
regulation, statute or other provision of law. Where any provision
of these regulations imposes restrictions, different from those
imposed by any other provision of these regulations or any other
City ordinance, rule or regulation or other provision of law,
whichever provisions are most restrictive, or impose higher standards,
shall control.
B. Conformance with Code. All plumbing materials and plumbing
systems or parts thereof installed hereafter shall meet or exCeed
the minimum provisions of this Code.
C. The following general regulations shall be appliCable to
all plumbing materials and plumbing systems or parts thereof
installed.
1. Changes in Direction.
(a) Fittings used to Change Direction. Changes in
direction in drainage piping shall be made by the apprapriate use of
45 degree wyes, long or short sweep quarter bends , sixth, eiqhth,
or sixteenth bends, or by a combination of these or equivalent
fittings. Single sanitary tees and quarter bends may be used in
drainage lines only where the direction of flow is from the horizontal
37 .
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(Sec. 21-16 (C) (1) (a) )
to the vertical. Double sanitary tees may be used in drainage
lines only where the direction of the flow is from the horizontal to
the vertical.
(b) Short 5weeps Permitted. Short sweeps not less than
three inches in diameter may be used in soil and waste lines where
the change in direction of flow is from either the horizontal to the
vertical or from the vertical to the horizontal, and may be used
for making necessary offsets between the ceiling and the next floor
above. (c) Blow-Out Type Fixtures . In the case of blow-out
type fixtures, install.ed back-to-back, appropriate fittings shall be
installed at the point of connection to the horizontal drain in order
to prevent the passage of liquid wastes from one fixture to the other.
2. Fittings and Connections .
(a) Prohibited Fittings . No fitting having a hub in the
direction opposite to flow, or tee branch shall be used as a drainage
fitting. No fitting or connection which has an enlargement chamber
or recess with a ledge or shoulder, or reduction in pipe area shall
be used. No running threads, bands or saddles shall. be used. No
drainage or vent piping shall be drilled or tapped.
(b) Heel or Side-2nlet Bends . A heel or side-inlet
quarter bend shall not be used as a vent when the inlet is placed
in a horizontal position or any similar arrangement of pipe or fittings
producing a similar effect.
(c) Obstruction to Flow. No fitting, connection, device,
or method or installation which obstructs or retards the flow of
water, wastes, sewage or air in the drainage or venting systems in
an amount greater than the normal frictional resistance to flow,
shall be used unless it is indicated as acceptable in this Code or
is approved by the Inspector as having a desirable and acceptable
function and is of ultimate benefit to the proper and continuing
functioning of the plumbing system. The enlargement of a three
inch closet bend or stub to four inches shall not be considered an
obstruction, provided the horizontal flow line or invert is continuous
without forming a ledge or shoulder.
38 .
� �
(Sec. 21-16 (C) (3) )
3. Repairs and Alterations .
(a) Existing Buildings. In existing buil.dings or premises
in which plumbing in�tallations are to be altered, or renovated,
deviations from the �rovisions of this seCtion are permitted,
provided such deviations are found to be necessary, conform to the
intent of this Code , and are approved in writing by the City Engineer.
(b) Health and Safety. Where a nuisance exists on a
premise by reason of an existing plumbing installatian or lack
thereof, the owner or his agent shall install additional plumbing
or make such corrections as may be necessary to abate such nuisance
and bring the pl.umbing installation within the provisions of this
C ode.
4. 5ewer and Water Pipe. Water service pipes , or any
underground water pipes, shall not be run or laid in the same trench
as the building sewer or drainage piping, except as provided for
hereinafter.
5. Trenching, Bedding, Tunneling and Backfilling.
(a) Trenching and Bedding . TrenChes shall. be of
sufficient width to permit praper installation of the pipe . Where
shoring is required ample allowance shall be made in trench width
for proper working conditions . Where trenches are excavated to a
depth such that the bottom of the trench forms the bed for the pipe,
care must be exercised to provide solid and continuous bearing
between joints and be].l holes shall be provided at points where
the pipe is joined. Where trenches are excavated to a depth such
that the bottom of the trench does not form the bed for the pipe, the
trench shall be back-filled to grade with compacted 1" minus rock
placed in layers of six inches maximum depth and cnmpacted after
each placement. The pipe shall not be supported on blocks to grade.
Where rock is encountered in trenching, it shall be removed to a point
at least three inches below the grade line of the trench and the
trench shall be back-filled to grade with 1" minus rock tamped in
place so as to provide a uniform bearing for the pipe between joints .
Care shall be exercised to see that the pipe does not rest on rock
39 .
� �
(Sec. 21-16 (C) (5) (a) )
at any point including the joints . If soft materials of poor
bearing qualities are found at the bottom of the trench, stabilization
shall be achieved by over-excavating at least 12 inches and bringing
up to grade with 1" minus rock or a concrete foundation. Such
concrete foundation shall be bedded with l." minus rock tamped in
place so as to provide a uniform bearing tor the pipe between joints .
6. Tunneling. Where necessary, pipe may be installed by
tunneling or jacking, or a combination of both. In such cases,
special care shall be exercised to protect the pipe trom damage
either during installation or from subsequent uneven loading. Where
earth tunnels are used, adequate supportinq structures shall be
provided to prevent future settling or caving. Pipe may be
installed in larger conduit which has been jacked throuqh unexcavated
portions of the trench.
7. Backfilling. Adequate precaution shall be taken to insure
proper Compaction of backfill around piping without damage to such
piping.
8. Backfill Material. Trenches shall be backfilled in thin
layers to 12 inches above the top of the piping with clean earth of
granular which shall not contain stones, boulders, cinder-fill, or
other materials which would damage or break the piping or cause
corrosive action. Mechanical devices such as bull dozers, graders ,
etc. , may then be used to complete backfill to grade. Fill shall be
properly compacted.
9 . Safety Precautions . Al1 local rules and regulations
pertaining to safety and protection of workmen, other persons in the
vicinity, and neighboring property shall be observed where trenching,
blasting or other hazardous operations are being conducted.
10 . 5afety. Any part of a building or premises which is changed,
altered, or required to be replaced as a result of the installation,
alteration, renovation, or replacement of a plumbing system, or any
part thereof, shall be left in a safe, non-hazardous condition.
11. Workmanship. Plumbing systems shall be installed in
workmanlike manner conforming to generally acCepted good practice .
40 .
� �
(Sec. 21-16 (C) (12) )
12 . Good Repair and Safe Structural. Condition. In the process
of installing, repairing, replacing, moving or removing any p art of
a plumbing or drainage installation, finished floors, walls, ceilings ,
tile work or any other part of the building or premises which must
be moved, removed, changed or replaced, shall be left ' in good regair
and a safe structural condition in accordance with the Building Code
and this Code.
13 . Notification of Owner. If any plumbing installation is
made in a manner not in accordance with recognized principles and
standards of good plumbing workmanship as they apply to building
trades or not in accordance with this Code, thus necessitating the
issuance of a notice, s�ch natice 'rlay be mailed to the owner or his
authorized agent.
14 . Poor workmanship. If due to the installation of plumbing,
the finished walls , ceilings, or floors are unduly roughened, broken
or left in any other wise unsightly or unfinished condition, or if
piping of fixtures are installed without adequate support, or if
piping is i:�stalled without proper pitch, or fixtures, traps and
piping are not set plumb or true, or if fixtures are set so as not
to be level with respect to trap seals , or if they are installed so
as to permit accumulation of filth or vermin beneath them which
cannot be detected in normal cleaning processes , or if leaking
and/or unreamed pipe joints are installed or improper backfilling
of trench work is performed, any of these shall be deemed poor
workmanship.
15. Responsibility of Licensee. Any master or journeyman
plumber, master drainlayer, or other person licensed by the City of
Cape Girardeau to do work which is required to be inspected, who
continues to perform and install work contrary to recognized good
practices, or in violation of this Code , after having been duly
notified of such work violation by the Inspector shall then be
required to show cause before the City of Cape Girardeau Council
why his license should not be revoked and he should not be subject
to other penalties as may be prescribed in this Code.
41.
6 7 �
(Sec. 21-16 (C) (16) )
16 . .Protection of Pipes.
(a) Breakage. Pipes passing under or through walls shall
be protect�d from breakage. Any plumbing pipe passing under a footing
or through a foundation wall shall be provided with a relieving
arch; or there shall be built into the masonry wa11. an iron-pipe
sleeve two pipes sizes greater than the pipe passing through; or
equivalent protection shall be provided as may be approved in
writing by the Inspector.
(b) Corrosion. Pipe and appurtenances subject to corrosion
by passing through or under corrosive fil.l, such as , but not limited
to, cinders, concrete, or other corrosive material, shall be protected
against external corrosion by protective coating, wrapping, or other
means which will resist such corrosion.
(c) Cutting or Notching. Any structural member unavoidably
weakened or impaired by cutting, notching, or otherwise, shal.l be
reinforced, repaired or replaced, so as to be left in a safe
structural condition in accordance with the requirements of the
Building Code .
17. Exclusion of Materials Detrimental to the Sewerage System.
It shall be unlawful for any person to deposit by any means into the
building drainage system or sewer any ashes, cinders, rags, flammable,
poisonous, or explosive liquids, gasses , oils, grease or any other
material which would or could either obstruct, damage or overload
such system or which could intertere with the normal operation of the
sewage treatment processes . It shall be unlawful to permit or allow,
during building construction, any unprotected opening in the sanitary
line, which may allow surface water, mud or other material to enter
and obstruct, damage or overload such sewer system.
18. Industrial Wastes. Waste products from manufacturing or
industrial operations shall not be introduced into the public sewer
system until it has been determined by the Inspector ar other
authority having jurisdiction that the introduction thereof wi11 not
cause damage to the public sewer system or interfere with the
functioning of the sewage treatment plant.
42 .
� �
(Sec. 21-16 (C) (19) )
19 . Sleeves. In exterior walls annular space between sleeves
and pipes shall be filled or tightly caulked with coal tar or
asphaltum compound, lead, or other material found equally effective
and approved as such by the Inspector.
20. Ratproofing.
(a) 5trainer Plates . All strainer plates on drain inlets
shall be designed and installed so that no opening is greater than
1/2 inch in least dimension.
(b) Meter Boxes. Meter boxes shall be constructed in
such manner that rats cannot enter a building by following service
pipes from the box into the building.
(c) Openings for Pipes . In or on buildings where
openings have been made in walls , floors , or ceilings for the passage
of pipes, they shall be closed and protected by the installation of
approved metal collars securely fastened to the adjointing structure.
21. Used Materials or Equipment . It shall be unlawful to
sell, otfer for sale, purchase, or install any used plumbing material
or equipment, unl.ess it conforms to the standards and regulations
set forth in this Code.
22. Condemned Equipment. Any plumbing equipment condemned
by the Inspector because of wear, damage, defects or sanitary
hazards , shall not be re-used for plumbing purposes.
23 . Freezing. Water service piping and sewers shall be
installed below recorded frost penetration but not less below grade
than two (2) feet for water piping and two (2) feet for sewers .
Plumbing pipes in exterior building wal.ls shall be adequately
protected against freezing by insulation or heat or both.
24. Protection of Footings . Trenching installed parallel to
footings shall not extend below the 45 degree bearing plane of the
wall or footing.
25. Connections to Plumbing Systems Required. Every plumbing
fixture, drain, appliance, or appurtenance thereto which is to receive
or discharge any liquid waste or sewage sha11 discharge to the sanitary
drainage system of the building in accordance with the requirements
of this Code.
43.
� �
(Sec. 21-16 (C) (26) )
26 . Connection to Water and Sewer System.
(a) General. The water distribution and drainage system
of any building in which plumbing fixtures are installed shall be
connected to a public water supply and sewer system respectively
if available. A public water supply system or public sewer system
shall be deemed available to a premise used for human occupancy if
such premise is within 150 feet measured along a street, alley, or
easement, of the public water supply or sewer system and a
connection conforming with the standards set forth in this Code may
be made thereto.
(b) Private Systems . Where either a public water supply or
sewer system, or both, are not available, a private individual water
supply or in.dividual sewage disposal system, or both, shall be
provided, and the water distribution system and drainage system
shall be connected thereto.
27. Washroom and Toilet Room Requirements .
(a) Light and Ventilation. Washrooms and toilet rooms
shall be illuminated to conform to standards of good lighting
practices and be ventilated to the outside air or through an
independent exhaust system.
(b) Location of Fixtures and Piping. Piping, fixtures, or
equipment shall not be located in such a manner as to interfere with
the normal operation of windows , doors , or other openings .
28. Piping Measurements. Except where otherwise specified
in this Code, all measurements shall be made to the center lines
of the pipes.
29. Water Closet Connections .
(a) Lead Connections . Three inch lead bends and stubs
may be used on water cl.osets or similar connections provided the
inlet is dressed or swedged to receive a four inch flange.
(b) Iron Connections . Three inch bends may be used on
water closets or similar connections , provided a 4 inch x 3 inch
flange is used to receive the closet fixture horn.
(c) Copper Connections . Three inch bends may be used on
water closets or similar connections provided a 4 inch x 3 inch
flange is used to receive the closet fixture horn.
44 .
� �
(Sec. 21-16 (C) (29) (d) )
(d) Plastic Connections. Plastic water closet bends may
be used if approved by the Inspector and provided a suitable four
inch by three inch flange is used to receive the fixture horn.
(e) Reducing Cl.oset Bends . Four by three inch closet
bends are acceptable.
30. Dead Ends . In the installation or removal of any part
of a drainage system, dead ends shall be avoided except wherP
necessary to extend a cleanout so as to be acCessible.
31. Toilet Facilities for Workmen. Suitable toilet facilities
shall be provided and maintained in a sanitary condition for the
use of workmen during construction.
32. Protection of Water Tanks, and Food Supply . Drainage
piping sha11 not pass over water supply tanks or reservoirs unless
such tanks or r�servoirs are water tight; nor shall drainage piping
pass directly over food processing, or food storage areas.
33. 5tormwater and 5ub-soil Drains . It shall be unlawful for
any person to connect, by any means , a stormwater or subsoil drainage
system to, or to use such system to deposit water into a sanitary
sewage system, constructed for sewage disposal only.
ARTICLE IV. SPECIFIC REGULATIONS
Sec. 21-17. Materials.
A. Minimum Standards. Materials shall conform to the standards
cited in this Code, which shall be considered minimum standards,
when used in construction, installation, alteration or repair of
plumbing and drainage systems or parts thereof, except that:
l. The Inspector shal.l allow the extension, addition to or
relocation of existing water, soil, waste vent pipes with materials
of like grade or quality as permitted by the City Engineer.
2. Materials not covered by the standards cited in this Code
may be used with the approval of the City Council.
B. General Requirements .
1. All materials , fixtures, or equipment used in the
installation, repair or alteration of any plumbing system shall conform
at least to the standards listed in this Code.
45 .
� �
(Sec. 21-17 (B) (2) )
2 . A11 materials installed in pl.umbing systems shall be so
handled and installed as to avoid damage so that the quality of the
material will not be impaired.
3. No defective or damaged materials, equipment or apparatus
shall be installed or maintained.
C . Standards Applicable to Plumbing Materials . A material shall
be considered approved if it meets the standards cited in Table 1,
5tandards for Plumbing Materials, and in the case of pl,astic pipe ,
the listed standards of the National Sanitation Foundation.
l. Note 1.
Abbreviations in Table 1 refer to the following organizations:
USA5I United States of America Standards Institute
10 East 40th Street
New York, New York 10016
A5TM American 5ociety for Testing and Materials
1916 Race Street
Philadelphia, Pennsylvania 1.9103
AWWA American Tnlater Works Association
521 Fifth Avenue
New York, New York 10017
CS Commercial Standards
Commodity Standards Division
Office of Industry and Commerce
U.S. Department of Commerce
Washington, D. C. 20230
FS Federal Supply Service
Standards Division
General Services Administration
Washington, D. C. 20405
NSF National Sanitation Foundation
Ann Arbor, Michigan 48106
PDI Plumbing and Drainage Institute
1.018 North Austin Boul,evard
Oak Park, Illinois 60302
2. Note 2.
ASTM Standards are issued under fixed designations ; the
final number indicates the year of original adoption, or in the case
of revision, the year of last revision. "T" indicates Tentative.
In the "CS" series of standards, also, the final number indicates
the year of issue. For Federal Specifications, the year indicated
in Table 1 is that of the date of issue or that of the latest
revision or amendment.
46 .
(Sec. 21-17 (C) (3) )
3. Note 3 .
All standards and specifications for materials are subject
to change . Designations carrying indication of the year of issue
may thus become obsolete. Table 1 gives the full designations of
standards current at the time this Code is printed. The Inspector
is required to review this table and have it brought up to date at
intervals not exceeding two years .
4 . Note 4.
Iaentification of Materials . Materials shal.l be identified
as provided in the standard to which they conform.
D. 5pecial Materials.
1. Lead. Sheet lead for the following uses shall weigh not
less than:
(a) General Use - 2-1/2 pounds per square foot.
(b) Safe pans - 2-1/2 pounds per square foot.
(c) Flashings for vent pipes - 2-1f2 pounds per square
foot.
The walls of lead bends and traps shall be at least
one-eighth (1/8) inch thick.
2 . Copper. Sheet capper for the following uses shall weigh
not less than:
(a) General use - 12 oz . per square foot.
(b) Flashings for vent pipes - 8 az . per square foot.
(c) Flush tank linings - 10 oz. per square foot.
All copper traps and tail piece fittings shall be of at
least 22 guage material.
3. Calking Ferrules . Calking ferrules shall be of red
brass and shall be in accordance with the following tabl.e:
_ _ _
, _ _ _ _ _ _ __ - - - __ _ _ �
! Pipe Sizes Inside Diameter Length Minimum Weight �
Inches Inches Inches Each '
2 2-1/4 4-1/2 1 Ib. 0 oz.
3 3-1/4 41/2 1 lb. 12 oz.
4 41/4 41/2 21b. 8 oz.
47 .
(Sec. 21-17 (D) (4) )
4. Soldering Bushings . Soldering bushings shall be of
red brass in accordance with the following table:
Pipe Sizes Minimum Weight Each ',
Inches
1-1/4 6 oz.
1-1/2 8 oz.
2 14 oz. '
2-1/2 1 lb. 6 oz.
3 21b. 0 oz.
' 4 3 lb. 8 oz.
5 . Floor Flanges . Floor flanges for water closets or similar
fixtures shall be not less than 1/8 thick for brass, 1/4 inch thick
and not less than 2 inch calking depth for cast iron or galvanized
malleable iron. Approved copper flange may be used.
If of hard lead, they shall weigh not less than 1 lb. 9 oz.
and be composed of lead alloy with not less than 7. 75 percent antimony
by weight. Flanges shall be soldered to lead bends, or shall be
calked, soldered, or threaded into other metal. Closet screws and
bolts shall be brass .
6 . Cleanout Plugs. Cleanout plugs shal.l be of brass , plastic,
or stainless steel. They shall have raised square or countersunk
square heads except that where raised heads will cause a tripping
hazard countersunk heads shall be used.
7. Flush Pipes and Fittings . Flush pipes and fittings shall
be of nonferrous material . When of brass or copper tube, the material
shall be at least 0 . 0313 inches in thickness (No. 20 U.S . gauge) .
E. Alternate Materials and Methods.
l. Existing Buildings . In existing buildings or premises in
which plumbing installations are to be altered, renovated or replaced,
such new materials and work shall meet the provisions of this Code.
Where the Inspector shall find that the full performance of bringing
such work into compliance with the requirements of this Code would
result in undue hardship by reason of excessive structural or
mechanical difficulty or impracticability, a deviation may be granted
by the Inspector to the extent necessary to ameliorate such undue
hardship. Such deviation shall not be granted where it would impair
48 .
� �
(Sec. 21-17 (E) (1) ) •
the intended purpose af this Code. A record open to inspection by
the public, shall be maintained by the Inspector of each and every
deviation allowed under the terms of this section.
2. Approval. The City Council may approve the use of
fixtures, appurtenances, materials and methods of a type not
conforming with the requirements of this Code after determination that
such fixture, appurtenance, material or method is of such design or
quality as to appear to be suitable, safe and sanitary for the use
for which it is intended. A record of such approvals shall be
maintained at the Office of Plumbing and 5ewer Inspection and shall be
available to the public. Any person desiring to install or use a
fixture, appurtenance, material, or method, of a type not conforming
with the requirements of this Code shall, prior to such installation
or use, submit to the Inspector such proof as may be required to
determine whether such fixture, appurtenance, material or method is
of such design or quality as to appear to be suitable, safe and
sanitary for the use for which it is intended. In the event the
Inspector determines that it is suitable, safe and sanitary for the
use for which it is intended, he may permit such use: Provided, that
the manner of installation or use is otherwise in accordance with
this Code. Such use shall be subject to periodic inspection by the
Inspector and such fixture, appurtenance, material or method shall,
upon order, be discontinued or removed if such inspection indicates
it is unsuitable, unsafe, insanitary, or contrary to the provisions
of this Code .
3. Tests . When there is insufficient evidence to verify
claims for alternate materials the Inspector may require as proof of
suitability tests of compliance by an approved agency at the expense
of the applicant.
4. Test Procedure. Tests shall be made as specified or
deemed necessary by the Inspector.
5. Repeated Tests. The Inspector may require tests to be
repeated if, at any time, there is reason to believe that an alternate
material no longer conforms to the requirements on which its approval
was based.
49 .
(Sec. 21-17 (E) (6) )
6 . Mobile Homes . Mobile homes shall comply with ASA-A119 . 1-1963 .
7. Travel Trailers. Travel trailers shall comply with
ASA-A119 . 2-1963. .
F. Approval Materials .
l. Periodic Review. The Office of Plumbing and Sewer
Inspection shall require a review periodically at least once every
one (1) year of the approved list of specifications and standards
for materials.
2. 5pecific Usage. Each item in the following table indicates
specifically the type of material permitted for the various parts
of the plumbing system. The standards for each of those materials
are given in _the following table.
_ T�ible 1
STANDARDS FOR PLUMBING MATERIALS
Description USASI ASTNI rS Other
Polyv.inyl Cl�loride(PVC)Piastic Drain,Waste, CS 272-65
� and Veiit Pipe and Fitti�igs None D 2665-67 L.P-320a-1966 NSF 14
Solvent Cements for Pulyvinyl Chloride(PVC)
� Plastic Pipe and Fit�tings None D 356�Y-E,7 None Nune
Vitrified clay sewer pipe standard strength A]06.3-1967 Nonc None None
Vi'trified clay sewer pipe,persor��ted � �
standard strength A106.1-1962 None None CS 143-60
Plumbing Fixtures
Drinking fountains 742-1942 None Noiie None
Drinking-Water Coolers Self�ontained Al 12.11.1- �
Niechanically Refi-igerated 1971 None None None
Enamel�d c3st-iro�t plumbing fi�ctures None None None � CS 7?-63
Earthenware(vitreous gl�ized) plumbing
fixtu;es No��e None Nune � CS 111-43 �
� Finished and roLigli brass piumbing A 1 12.18.1-
� fixture fittings 1970
� Formed rnetal porcelain enameled
' � sanitary ware None None None PSS-66
Gel�oated Glass-Fiber Reinforced Polyestcr
Resin Bathtub Units 7.1?4.2-1967 None Nonc None
� ' � Gel-Coated Glass-Fiber Reinforced Polycster � �
I Resin Sliower Receptor and Shower S�.ill � � �
���� � Units 7_124.2-1967 None None Nune
��� Pliunbing fixtures(for I�ind use) None Nunc A�VW-P-S41b(h)-1963 None �
�! Staple vitreous Cliina plumbing fixtures None N�ne None CS 20-63
� Stills,water;portable (without heating �
dcvice)for U.S.P. "distilled water" � None None RR�S-7?6(I)-1950 None
� Porcelain-enameled tanks for domestic use � None None Noi�e CS 1 15-60
' 111iscellaneoi�s Materials and S/aj�dards
� Automatic relief valves Z21.22-19t4 Nor�e None None
Z212?a-1�65
� Air gap standards A40.4-1942 None None None
� Backflow preventers A40.6-1943 None None None
Brass cleanout plugs None Nc�ne Nc�nc CS 188-66
' Caulking lead;Type 1 Noiie � None QQ-C-40-1963 None
� Cement lining for cast iron pipe A21.4-1964 None WW-P-406b(1)-1964 AWWA C104(4
' Coal-tar enamel,protective coating No��e N��ne Nonc AWWA C203-66
Socket-Type Acrylonitrile-Butadiene,
; Styrene(ABS) Plastic Pipe Fittings,
' Schedule 80 None D 24ti9-67 None NSF 14
Threaded Acrylonitrile-Butadiene-
Styrene(ABS)Plastic Pipe Fittings,
� Schedule 80 None D 2465�7 None NSF 14
50 ,
(Sec. 21-17 (F) (2) )
_ _ _ ,, . _._ __. _
TaUle 1 STANDARDS FOR P£;UMBING MATERIALS—Continued
� Description USASI ASTM FS Other
,
I Polyvinyl Chloride(PVC)Plastic Pipe, �S 207-60
1 Schedules 40,RO and 120 None D 1785-67 None NSF 14
'�; Polyvinyl Chloride(PVC)Plastic Pipe, B72.2-1967 D?241-67 None CS 256-63
(SDR-PR and Class T) B72.2-1967 D 2241-67 Noile NSF 14
j Thr�aded Polyvinyl Cliloride(PVC)Plastic
? Pipe Fittings,Schedule 8Q None D 2464-67 None NSF 14
�. Soc]<et-Type Yolyvinyl Chloride(PVC)Plastic
� Pipe Fittings,Schedule 40 None D�4E6-C7 None NSF 14
� Socket-Type Polyvinyl Chloride(PVC)Plastic
� Pipe Fittings,Schedule 80 None D 2467-67 None NSF 14
Acrylonitrile-Butadiene-Styrene(A33S)Plastic CS 270-65
�� Drain,Waste,and Vent Pipe and Fittings None D 2661-67 L-P-322a-1966 NSF 14
�� Solvent Cement for Acrylonitrile-Butadienc-
�tyrene(ABS)Plastic Pipe and Fittings None - D 2235-67 None None
Concrete sewer pipe,non-reinforced None C14-67 None None
Concrete pipe,pressure,reinforced concrete,
pretensioned reinforcement(steei cylinder
type) None None SS-P-381-1955 None
' Perforated asbestor cement pipe None C508-67 None None
Polyethylene(PE)plastic pipe,Sc}iedule 40 None D 2104-67 None NSF 14
cs ���-60
� Polyethylene(PE)Plastic Pipe,Scliedules 40
�I and 80 Based on Outside Diameter None D 2447-67 N�ne NSF l4
L___ _ __ _ _ _ _ . _ - _ _ __ _
� Polyethylene(PE)Piastic Pipe,(SDR-PR) B72.1-1967 D 2339-67 L P-31 Sa-1966 CS255-63
I NSF 14
' Plastic Insert Fittings for Polyethylene Plastic
Pipe B16.27-62 D 2609-67 No�le NSF 14
Acrylonitrile-Butadiene-Styrene(ABS)Plastic C5 218-59
Pipe,Schedules 40 and 80 None D 1527-G7 None NSF 14
Acrylonitrile-Butadiene-Styrene(ABS)Plastic CS 254-63
Pipe,(SDR-PR and Class T) B7?.3-67 D ��282-66 N��ne � NSF 14
Socket-Type Acrylonitrile-Butadiene-Styrene �
(ABS)Plastic Pipe Fittings,Schedule 40 None D 2468-(7 None NSF 14
� Valve,ball None None WW-V-35a-1965 None
Valves,bronze;angle,check and globe, 125
and 1501bs.,threaded and flanged �None None WW-V-51 a(2)-1954 Noiie
� Valves,bronze;gate, 125 and 150 lbs.,
I tltreaded and flanged None ' None WW-V-54c-1966 None
! Pipe fittings,broiizc and ferrous(busliings,
plugs and locknuts);threaded None None WW-P-�71 a(3)-1964 None
, Non-Metallic Pipe artd Fittrrtgs '
f Asbestos cement non-pressure(sewer)pipe None None SS!'-331 c-1967 None
Asbestos cement pressure(water)pipe None C-296-65T SS-Y-351 a-1953 AWWA C400-65
Bituminizeci fiber sewer pipe and fittings None D1861-64 SS-P-356-1955 None
� D 1862-b4 � �
' Perforated bituminized fiber pipe for septic D2312-65
�� tank disposal Fields None � D��:313-65 SS-P-�58a-1960 None
� _ _ _ . _ _.__. . _ __---
51.
(Sec. 21-17 (F) (2) )
Table 1 STANDARDS FOR PLUMBWG MATERf�LS—Co�itinued
Desrriptioi�i USASI ASTM ES Otlier
Clay drain tile A6.1-1�63 C4-Ci� None None
Concrete sewer pipe,reinforced Nune C76-�7 Nc�n�: None
Cast-bronze soldcr-joint pressure fitti�:gs f316.1H-19f;3
B16.18a-1967 None None Noiie
General requirements for wrought seamless H23.4-19G7 �
copper and copper alloy Pipe and tube i9G7�� B"'S1-67 N��ne None
Cast-bronze solder joint drainage fittings �316.23-1960 None None None �
� Copper P��e £I26.1-]9671/ B4?-66 None None
�� Copper pipe,threadless(TP) li2C,.2-1967 B?02-bF,a None None
Copper water tube,types K,L,M 11?3.1-1967 BR8-(�6a None None
Copper drainage tube,type DVW H23.6-1967 B306-66a None None
Wrought-copper and bronze solder joint
' presstire fittings B16.22-1963 None Nonc None
� Wrought copper�uld bronze solder-:joint
• drainage fittings C16.23-1960 None None Noiie
� L,cad pipe and traps Noi�e None WW-P-325a-1967 �None
!i Unions,brass or bronze, 2501bs. None None WW-U-51 tia-1967 None �
� Unions;malleable iron or steel 300 lbs. None Ne>ne WW-U-536(I)-1933 CS7-29
� Wrought-rion pipe B3G.2-1966 A72-66 None None
�� Va�ves,cast iron,gate, l 25 &250 lb. threaded
anGl fl3nged None None WW-V-Sfia-1966 None
Pipe fittings,bronze &ferrot�s(busl�ings, � �
plugs and locknuts);tlireaded None None 'v�"dV-1'-4'71 a(2 j-1964 None
—. --— ------
� Nipples,pipe,tl�re.�ded � None � None� WW-N-351u-1967 CSS-6�� �
I Non ferrous Metallic Pipe and Fittings �
Brass fittings for flared capper tube B1(.26-1967 Nouc None None
Seamless brass iuUe H36.7-19671� B13�-67 None None
Seamless red brass pipe None 54:�-66 Ncne None
Brorize flanges and flanged fittings, 1 SO
and 3001bs. B16.24-19C�2 None None None
� Brass or bronze screwed fittin�s, 125 & �
250 lbs. B l6.I 5-19C4 None None None
Ferrous Pipe and Fittings
Cast iron soil pipe and fittings,extra heavy
and service weights None A74-66 None CS 188�6
� Cast iron water pipe(cast in metal rnolds) A21.6-1962 None None AWWA C 106�2
� Cast iron waterpipe (cast in sand lined molds) A21.8-1962 None None AWWA C108-62
Cast iron water pipe fitting A21.10-1964 Ivone N��ne AWWA C110-64
� Cast iron water pipe(2") A21.12-7965 None Nane _AWWA C112-65
� Cast iron(threaded)pipe A40.5-1943 None None N���t
Cast iron(threaded)fittings 1316.4-19G3 Nc�ne Wd'V-P-501 d-1967 None
Cast iron drainage fittings B1C.12-1965 None WW-P-4916-1967 .None
Galvanized pipe and fittings None None WW-P�06h(1)-1964 Nune
��, Malleable iron fitting,(threaded) 1 SO lbs. B 16.3-1963 None WW-P-521 e-19Ei4 None
Steel pipe(seamless and welded,black and
zinc coated)(galv.) B36.20-1966 A120-66 None None
'� 1)USASI H23.4-1967 is applicable to and furms a part of the standards indicated.
! _ _ ___.__ _ ._. _ _ _.
� - _ _ — _ .
52 .
(Sec. 21-17 (F) (2) )
Table 1 STANDARDS FOR PLtTMBING I�IATERiALS—Continued
' Description USASI ASTM FS Other
Fixture setting compound None None HH-('-53Ga-1954 None
Flange dimensions,standard(class�s 12� anci
250 cast iron flanges,classes 150, 350&300
bronze flanges) (lan�l iise) None None WW-F�06a(1)-1943 None
Gaskets,plumbing-fixture-setting None None HH�-116-1936 None
Grease interceptors None None None PD1�101
Hangers and supports,pipe None None W1-V-H-171c(1)-1964 SP69-1966
Hose clamps None None WW-C�440b-1965 None
' Rubber gaskets(concrete sewer pipe) None C443-67 None None
Sheet copper None t3152-66 No�ie None
Sheet lead,grade A None None QQ-L-201 f-1965 None
Soft solder None None QQ-S-571 d-1963 None
Steel septic tanks None None Nonc CS 177-62
i)omestic Hot Water I�eaters 'L21.10.]-1�66
'7.21.102-19G2 �
' '1,21.1 U.2a-l 963
Z21.10.3-1966None VdH-19Cd-1961 None
Water hammer arrestors Nune Nune None FDI-WH 201
_._. __ _.
_.___ __. _ __ _ .
53 .
� �
Sec. 21-18. Joints and Connections .
A. Tightness . Joints and connections in the plumbing system
sha11 be gas tight and watertight for the pressure required by test,
with the exceptions of those portions of perforated or open joint
piping which are installed for the purpose of collecting and conveying
ground or seepage water to the underground storm drains.
B. Types of Joints for Piping Materials .
1. Cal.ked.
(a) Cast Iron Soil Pipe . Every lead calked joint for cast
iron hub and spigot soil pipe shall be firmly packed with oakum or
hemp and filled with molten lead not less than 1 inch deep and not to
extend more than 1/8 inch below the rim of the hub. No paint, varnish
or other coatings shall be permitted on the jointing material until
after the joint has been tested and approved. Lead shall be run in
one pouring and shall be calked tight.
(b) Cast Iron Water Pipe. Every lead Calked joint for
cast iron bell and spigot water pipe shall be firmly packed with
clean, sound asbestos rope or treated paper rope . The remaining
space in the hub shall be filled with molten lead according to the
following schedule:
Pipe 5ize Depth of Lead
Up to 20 inches 2-1/4 inches
24, 30, 26 inches 2-1/2 inChes
Larger than 36 inches 3 inches
Lead shall be run in one pouring and shall be calked tight.
2. Threaded. Every threaded joint shall conform to the
American National Taper Pipe Thread, USAS B2 .1-1960 . All burrs shall
be removed. Pipe ends shall be reamed or filed out to size of bore,
and all chips shall be removed. Pipe joint compound shall be used
only on male threads.
3 . Wiped. Every joint in lead pipe or fitting, or between
lead pipe or fittings and brass or copper pipe , ferrules, solder
nipples, or traps, shall be full wiped joints. Wiped joints shall
have exposed surface on each side of a joint not less than 3/4 inch
and at least as thick as the material being joined. Wall of floor
54 .
"� 1 �"'�
(Sec. 21-18 (B) (3) )
flange lead-wiped joints shall be made by using a lead ring or flange
placed behind the joints at wall or floor. Joints between lead
pipe and cast iron, steel, or wrought iron shall be made by means of
a caulking ferrule, soldering nipple or bushing.
4 . Soldering or Sweat. Every soldered or sweat joint for
tube shall be made with approved fittings . Joints in Copper water
tube shall be made by the appropriate use of approved cast brass or
wrought copper fittings, properly sweated or soldered together.
5. Flared. Every flared joint for annealed-temper copper
tube shall be made with fittings meeting approved standards. The
tube shall be reamed and then expanded with a proper flaring tool.
6 . Mastic. Joints may be made using bitumastic material
where designated by this Code.
7. Hot Poured. Hot poured compound for clay or concrete
sewer pipe or other materials shall not be water absorbent and
when poured against a dry surface shall have a bond of not less than
100 pounds per square inch in shear. Al1 surfaces of the joint
shall be cleaned and dried before pouring. If wet surfaces are
unavoidable, a suitable primer shall be applied. The compound
shall not soften sufficiently to destroy the effectiveness of the
joint when subjected to a temperature of 160 degrees F . nor be
soluble in any of the waste carried by the drainage system.
Approximately 25 percent of the joint space at the base of the
socket shall be filled with jut,e or hemp. A pouring collar, rope or
other device shall be used to hold the hot compound during pouring.
Each joint shall be poured in one operation until the joint is filled.
Joints sha11 not be tested until one hour after pouring.
8. Precast. Every precast coll.ar shall be formed in both the
spigot and bell of the pipe in advance of use. Collar surfaces shall
be conical with side sloped of 3 degrees with the axis of the pipe
and the length be egual to the depth of the socket. Prior to making
joint contact, surfaces shall be cleaned and coated with solvents
and adhesives as recommended in the standard. When the spigot end
is inserted in the collar, it shall bind before contacting the base
of the socket. Material shall be inert and resistant to both acids
and alkalies.
55 .
� �
(5ec. 21-18 (B) (8) )
9 . Brazed Joints . Brazed joints sha11 be made by first
cleaning the surfaces to be joined down to the base metal, applying
flux approved for such joints and for the filler metal to be used,
and making the joint by heating to a temperature sufficient to melt
the approved brazing filler metal on contact.
10 . Cement. Except for repairs and connections to existing
lines constructed with such joints , cement mortar joints are prohibited.
[nlhere permitted, cement mortar joints shall be made in the following
ma.nner: A layer of jute or hemp shall be inserted into the base of
the annular joint space and packed tightly to prevent mortar from
entering the interior of the pipe or fitting. Not more than twenty-
five (25) percent of the annular space shall be used for jute or
hemp. The remaining space shall be filled in one continuous operation
with a thoroughly mixed mortar compounded of one (1) part cement and
two (2) parts sand, with only sufficient water to make the mixture
workable by hand. Additional mortar of the same composition shall �
then be applied to form a one (1) to one (1) slope with the barrel
of the pipe. The bell or hub of the pipe shall be left exposed and
when necessary the interior of the pipe shall be swabbed to remove
any mortar or other material which may have found its way into such
pipe.
11. Burned Lead (Welded) . Every burned (welded) joint shall
be made in such manner that the two or more sections to be joined
shall be uniformly fused together into one continuous piece. The
thickness of the weld shall be at least as thick as the lead being
joined.
C. Mechanical (Flexible or Slip Joint) .
1. Asbestos Cement Pipe . Every joint in asbestos cement
pipe shall be made with sleeve couplings of the same composition as
the pipe, sealed with rugger rings .
2. Cast Iron Pipe. Every mechanical joint in cast iron pipe
shall be made with a flanged collar, rubber ring gasket and appropriate
number of securing bolts; or with a preformed molded ring secured
by pulling the pipe together in such a way as to compress the molded
ring; or by means of a corrosion-resistant joint and clamp assembly
surrounding a seal.ing sleeve of an elastrometric material in such a
56.
� �
(5ec. 21-18 (C) (2) )
manner that the sleeve is firmly compressed by the tightening device
in the clamp assembly in order to provide a gas and water tight joint.
3. C lay Pipe. Flexible joints between lengths of clay pipe
may be made using approved resilient materials both on the spigot
end and in the bell end of the pipe.
4. Concrete Pipe. Flexible joints between lengths of concrete
pipe may be made using approved rubber materials both on the spigot
end and in the bell. end of the pipe . Mastic and hot poured joints
may be used.
D. Tapered Couplings . Every joint in bituminized fiber pipe
shall be made with tapered type couplings of the same material as
the pipe . Joints between bituminized fiber pipe and metal pipe shall
be made by means of an adapter coupling calked as required by this
Code.
E. Welded Joints . Joints to be welded shall be prepared by
approved pro�edure, cleaned free from paint, oil , rust, scale, or
other objectionable material and welded by welders who qualify according
to this Code for pressure piping. USA5 831 .1. - 1955 with addenda
B31. 1a-1065 .
F. Plastic. Every joint in plastic piping shall be made with
approved fittings by either solvent welded or fusion welded connections,
approved insert fittings and metal clamps and screws of corrosion
resistant material, or threaded joints according to accepted standards .
G. Slip. Every slip joint shall be made using approved packing
or gasket material, or approved ground joint brass compression rings.
Ground joint brass connection which all.ow adjustment of tubing but
provide a rigid joint when made up shall not be considered as slip
joints.
H. Expansion. Every expansion joint shall be of approved type
and its material shall conform with the type of piping in which it
is installed.
I. Types of Joints Between Different Piping Materials .
l. Vitrified Clay to Other Material. Every joint between
vitrified clay and other piping materials should be specially formed
57 .
� �
(Sec. 21-18 (I) (1) )
to vitrified clay and resilient material to meet the test conditions
of ASTM C-425. All adapters must meet requirements of positive
jointing and smooth flow line.
2 . Asbestos Cement Pipe to Metal Pipe. Joints between
asbestos cement pipe and metal pipe shal.l be made by means of an
adapter coupling calked as required by this Code or by means of
approved rubber or elastometric rings as approved by the Inspector.
3. Cast Iron to Vitrified Clay. Every joint between cast
iron piping and vitrified clay piping shall be made either of hot
pouring bitumastic compound or by a preformed bituminous ring. This
ring shall, after ramming, completely fill the annular space between
the cast iron spigot and the vitrified clay hub.
4. Threaded Pipe to Cast Iron. Every joint between wrought iron,
steel or brass, and cast iron pipe shall be either calked or threaded
or shall be made with approved adapter fitting.
5. Lead to Cast Iron, Wrought Iron, or Steel. Every joint
between lead and cast iron, wrought iron, or steel pipe shall be made
by means of wiped joints to a calking ferrule, soldering nipple,
bushing or by means of a mechanical adapter.
6 . Cast Iron to Copper Tube. Every joint between cast iron
and copper tube shall be made by using an approved brass or copper
calking ferrule and properly soldering the copper tube to the ferrule.
7. Copper Tube to Threaded Pipe Joints. Every joint from
copper tube to threaded pipe shall be made by the use of brass or
copper converter fittings. The joint between the Copper pipe and the
fitting shall be properly soldered, and the connection between the
threaded pipe and the fitting shall be made with a standard pipe
size screw joint.
8. Special Joints for Drainage Piping. Different types of
drainage piping materials shall be joined either by adapter fittin.gs
or by means of an acceptable prefabricated sealing ring or sleeve
as specifically approved by the Inspector.
9 . Dissimilar Metal Joints. All joints of dissimilar metals
where there is a possiblity of electrolisis or galvanic action shall
be protected by an appropriate insulating fitting.
58.
� �
(Sec. 21-18 (J) )
J. Connections Between Drainage Piping and Certain Fixtures .
Every connection between drainage pipes and water closets, floor
outlets, service sinks, pedestal urinals, and earthenware trap
standards or any other fixture with floor outlet, shall be made by
means of brass, wrought copper, hard-lead, or iron flanges, calked,
soldered, or screwed to the drainage pipe . The connection shall be
bolted, with an approved gasket or washer or setting compound between
the earthenware and the connection. The floor flange shall be
fastened to a structurally firm base. The use of commercial putty
or plaster is prohibited.
K. Waterproofing of Openings . Joints at the roof, around vent
pipes, shall be made watertight by the use of lead, copper, aluminum,
or other approved flashing or flashing material. Exterior wall
openings shall be made watertight.
L. Prohibited Joints and Connections , Drainage System. Any
fitting or connection which has an enlargement, chamber or recess with
a ledge, shoulder or reduction of pipe area, that offers an obstruction
to flow through the drain is prohibited. No fitting or connection
that offers abnormal obstruction to flow shall be used.
M. Increasers and Reducers. Where different sizes of pipes, or
pipes and fittings are to be connected, the proper size increasers
or reducers or reducing fittings shall be used between the two sizes .
Sec. 21-19 . Traps and Cleanouts .
A. 5eparate Traps for Each Fixture. Each plumbing fixture shall
be separately trapped by a water seal trap, except as otherwise
permitted in this Code, placed as close as possible to the fixture
outlet. The vertical distance from the fixture outlet to the trap
weir shall not exCeed twenty-four inChes . No fixture shall be double
trapped. Exceptions to the separate trapping requirements are as
follows:
1. Fixtures having integral traps.
2 . A combination plumbing fixture may be installed on one
trap provided one compartment is not more than six inches deeper than
the other and the waste outlets are not more than thirty inches apart
and neither outlet is equipped with a food waste grinder.
59 .
(Sec. 21-19 (A) (3) )
3. One trap may be installed for a set of not more than three
single compartment sinks, laundry trays or lavatories immediately
adjacent to each other in the same room, and the trap is centrally
located when three such fi�tures are installed.
4 . No clothes washer or laundry tub shall be discharged to
a trap serving a kitchen sink.
B. Size of Fixture Traps. Fixture trap size (nominal diameter)
shall be sufficient to drain the fixture rapidly and in no case less
than given in Tab1e 2 . Size of Fixture Traps for Different Type
Plumbing Fixtures . No trap shall be larger than the drainage �ipe
into which it discharges . Integral tra�s shall conform to apnropriate
standards .
� a
TABLE 2
S1ZE OF NON-INTF,GRAL TRAPS FOR DIFFERENT TYPE PLU�IBING
FIXTURES
I PlumbingFixture � Trap Size
�' in Inclaes
Bathtub(with or without overhead shower) 1-1�2
� Co�nbination sink and wash�laundry) tray . 1-1/2 �
� Combination sink and wash(laundry) tray with food�vaste
grinder unit 1-1/2*
� Dental unit or cuspidor 1-1�4
Dental lavatory 1-1/4
Drinki�ig fountain 1-1%4
�Dishwaslier,commercial 2
� Dishwasher,domestic(non-integral trap) 1-1�2
Flo o, drain ?
Food waste �rinder 1-I/2
I Kitchen siilk, domestic, with food waste grinder unit 1-1/2
Kitchen siiik,dumest:ic 1-1/2
Lavatory,common 1-1�4
� Lavatory(barber shop, beaut5� p�rlor or surgeon's) 1-1/2
Lavatory,multiple type (wash fountain or wash si�rk) 1-1/2
Laundry tray(1 or 2 compartments) 1-7�2
� Shower stall 1-1/2
� Sink(surgeon's) 1-1/2
Sink(flushing rim type,flush valve supplied) 3
Sink(service type with floor outlet trap standard) 3
Sink(service trap with P trap) 2
Sink,commercial(pot,scullery,or similar type) 2
Sink,commercial(with food grinder unit) 2
Urindi (pedestal,syphun jet,or blowout type,flush valve
supplied) 3
Urinal(stall type) 2
Urinal(wall lip type,flush tank supplied) 1-1/2
*Separate trap required for wasli tray and separate trap required for sink com-
partment with food waste grinder unit.
60 .
� �
(Sec. 21-19 (C) )
C. General Requirements for Traps.
1. Design of Traps . Fixture traps shall be self-scouring
and shall have no interior partitions except where such traps are
integral with the fixture. Slip joints or couplings may be used
on the trap inlet or within the trap seal of the trap if a metal-to-
metal ground joint is used.
2. Trap Seals. Each fixture trap sha11 have a liquid seal of
not less than two inches and not more than four inches , except where
for special conditions , a cieeper seal may be required by the
Inspector. This requirement does not apply to interceptors .
3. Trap 5etting and Protection. Traps shall be set level
with respect to their water seals and, where necessary, shall be
protected from freezing.
4. Prohibited Traps . The following type traps are prohibited:
(a) Traps which depend upon moving parts to maintain
their seal.
(b) Bell traps.
(c) Crown vented traps .
(d) Separate fixture traps which depend on interior
partitions for their seal.
(e) "S" traps .
D. Drainage Pipe Cleanouts .
1. Locations. Cleanouts shall not be more than 50 feet
apart in horizontal drainage lines of 3 inCh nominal diameter or less
and not more than 100 feet apart for larger pipes .
2. Underground Drainage. Cleanouts , when installed on an
underground drain, shall be extended vertically to or above the
finished grade level or the cleanout may be extended outside the
building when found necessary by the Inspector.
3. Change of Direction. Accessible cleanouts shall be
installed at each change of direction of the building sewer greater
than 45 degrees .
4. Concealed Piping. Cleanouts on concealed piping shall be
extended through and terminate flush with the finished wall or floor;
61.
� /�
(Sec. 21-19(D) (4) )
or pits or chases may be left in the wall or floor, provided they are
of sufficient size to permit removal of the cleanout plug and proper
cleaning of the system.
5 . Base of Stacks. A cleanout shall be provided at or near
the foot of each vertical waste or soil stack. For buildings with
a floor slab, or with less than 18 inch crawl space under the floor
or where a stack cleanout is not easily accessible, the following
shall be provided in lieu of a cleanout at the base of the stack.
The building drain shall be extended to the outside of the building
and terminated in an accessible cleanout or an accessible cleanout
may be installed in the building drain downstream from the stack not
more than 5 feet outside the building wall.
6 . Building Drain and Building Sewer Junction. There shall
be a cleanout near the junction of the building drain and building
sewer. This cleanout may be either inside or outside the building
wall provided it is brought up to finish grade or to the basement
floor level.
7. Direction of Flow. Every cleanout shall be install.ed
so that the cleanout opens in the direction of the flow of the
drainage line or at right angles thereto.
8. Connections to Cleanouts Prohibited. Cleanout openings
shall not be used for the installation of new fixtures or floor
drains except where approved in writing by the Inspector and where
another cleanout of equal access and capacity is provided.
9 . Cleanout 5ize. Cleanouts shall be of the same nominal
size as the pipes up to 4 inches and not less than 4 inches for larger
piping.
10 . Manholes for Larger Pipes . For exterior underground piping
of 8 inches diameter or larger, manholes shall be provided and located
at every change of major direction, grade, elevation or size of
pipe or at intervals of not more than 400 feet. Metal covers shall
be provided for the manholes and shall be of sufficient weight to
meet local tratfic, loading, and safety or sanitary conditions. Metal
gas tight covers shall be provided for manholes within buildings .
62 .
� �
(Sec. 21-19 (D) (11) )
11. Cleanout Clearances . Cleanouts on 3 inch or larger pipes
shall be so installed that there is a clearance of not less than
18 inches for the purpose of rodding. Cleanouts smaller than 3 inches
shall be so installed that there is a 12 inch clearance for rodding.
12 . Cleanouts to be Kept Uncovered. Cleanout plugs shall not
be covered with cement, plaster, or any other permanent finishing
material. Where it is necessary to conceal a cleanout plug, a
covering plate or access door shall be provided which will permit
ready access to the plug.
13. Cleanout Equipment. A fixture with integral trap, readily
removable without disturbing concealed roughing work, may be accepted
as cle anout equivalent.
E. Acid Resisting Traps. Where a vitrified-clay or other
brittleware, acid-resisting trap installed underground, it shall be
embedded in concrete extending six inches beyond the bottom and sides
of the traps .
Sec. 21-20 . Interceptors, 5eparators , and Backwater Valves .
A. Interceptors and Separators .
l. Interceptors Required. Interceptors for oil , grease,
sand, and other substance harmful or hazardous to the building
drainage system, the public sewer, or sewage treatment plant or
processes shall be provided as required by the Inspector and as
stated in this Code .
2. Approval of Interceptors and Separators . The size , type,
and location of each interceptor, and of each separator shall be
approved by the Inspector and no wastes other than those requiring
treatment or separation shall be discharged into any interceptor or
separator.
3. All Interceptors to Follow Type Approved. No grease
interceptor shall be hereinafter installed which does not comply,
in all respects, with the type or model of each size thereof approved
by the Inspector.
4. Separation of Liquids . A mixture of light and heavy
liquids having various specific gravities may be treated and then
separated in a receptacle as approved by the Inspector.
63 .
� �
(Sec. 21-20 (B) )
B. Grease Interceptors .
1. Commercial Buildings. A grease interceptor shall be
installed in the waste line leading from pot sinks ; and other fixtures
receiving grease in the following establishments when, in the
judgment of the Inspector a hazard exists ; restaurants, hotel kitchens
or bars, factory cafeterias or restaurants, cl.ubs , or other
establishments where grease can be introduced into the drainage
system in quantities that can effect line stoppage or hinder sewage
disposal. Outside grease trap is preferred.
2 . Water Cooled Grease Interceptors . The installation of
water-coo].ed grease interceptors shall be prohibited.
3. Grease Interceptors Capacity. Grease interceptors , if
installed, shall have a grease retention capacity of not less than
2 pounds for each gpm of flow.
4. Rate of Flow Controls . Grease interceptors shall be
equipped with devices to control the rate of water tlow through the
interceptors so that it does not exceed the rated flow of the
interceptors .
5. Interceptors Not Required. A grease interceptor is not
required for individual dwelling units or any private living quarters .
C. Sand Interceptors. Commercial Establishments . 5and and
similar interceptors for heavy solids shall be so designed and
located as to be readily accessible for cleaning, and shall have a
water seal of not less than six inches .
D. Venting of Interceptors and Separators. Interceptors and
separators shall be so designed that they will. not become air bound
if tight covers are used. Each interceptor or separator shall be
properly vented.
E. Interceptors and Separators to be Accessible. Each interceptor
and separator shall be so installed that it is readily accessible for
removal of cover, servicing and maintenance. Need for use of
ladders or moving of bulky objects in order to service interceptors
shall constitute a violation of accessibility.
F . Efficiency of Interceptors . Interceptors shall be rated and
approved for their efficiency as directed by the Inspector and in
accordance with generally �accepted practice.
64 .
f � �
(Sec. 21-20 (F) )
l. Greast Interceptors to be Tested and Rated. No grease
interceptor shall be approved until it has sucCessfully passed the
testing and rating procedure set up by the Inspector.
G. Laundries . Commercial laundries shall be equipped with an
interceptor having a wire basket or simil.ar device, removable for
cleaning, that will prevent passage into the drainage system of
solids 1/2 inch or larger in size, string, rags, buttons or other
materials detrimental to the public sewerage system.
H. Bottling Establishments . Bottl.ing plants shall discharge
their process wastes into an interceptor which will provide for the
separation of broken glass or other solids , before discharging liquid
wastes into the drainage system.
I . 5laughter Houses , 5laughtering room and dressing room
drains shall be equipped with separators or interceptors approved by
the Inspector which shall prevent the discharge inta the drainage
system of feathers, entrails , and other materials likely to clog the
drainage system.
J. Maintenance of Interceptors and Separators . Interceptors
and separators shall be maintained in efficient operating condition by
periodic removal of accumulated grease, scum, oil, or other floating
substances, and solids deposited in the interceptnr or separator.
K. Oil and Flammable Liquids Separator.
l. Garage and Gasoline Interceptors (Traps) .
(a) In all buildings where vehicles, charged with gasoline
or other flammable liquids are serviced or stored, and in which floor
drains or wash racks are connected to the sewer, and any and all
flammable waste from any building, shall first discharge into a
garage or gasoline trap sized according to the following Table.
Such traps shall have a large area grate and deep seal; provided
that no such interceptors (traps) shall have an inlet grate less than
eighteen (18) inches in diameter and such gasol.ine traps shall be
vented with a four (4) inch vent pipe terminating as provided in
this Code .
(b) No fixtures shall be vented into this pipe. Drains on
upper f000rs , may discharge into an intercepting trap located in the
65 .
(Sec. 21-20 (K) (1) (b) )
ground and constructed of cast iron, clay sewer pipe, or concrete.
No fixture except floor drains shall be connected to this intercepting
trap. Floor drains shall be connected to this intercepting trap.
Floor drains on various floor levels in enclosed buildings which
connect to an approved interceptor shall not be trapped but shall
be vented at the end of each run.
(c) Where roofs are used for parking, drain need not be
connected into gasoline interceptor. Where roofs are used for parking,
drains may act as the vent if they are connected to the gasoline
interceptor. In buildings where vehicles are stored or serviced�
and where there is a washrack, this washrack drain may be used as a
gasoline interceptor when size and construCted in accordance with
Section 21-20 (K) (2) of this Code.
(d) A yard drain, adjacent to a building requiring a
gasoline interceptor may be used as a gasoline interceptor when
sized and constructed in accordance with Section 21-2b (K) (2) of
this Code . This type interceptor does not require a vent.
2. Size of Gasol.ine Interceptor. Interceptors shall have a
capacity of six (6) cubic feet where not more than three (3) vehicl.es
are stored and one (1) cubic foot in net capacity shall be added for
each additional vehicle up to ten (10) vehicles . Where more than
ten (10) vehicles are stored, one-half (1/2) cubic foot shall be
added for each additional vehicle up to twenty (20) . Where more than
twenty vehicles are stored one-eighth (1/8) cubic foot shall be
added for each additional vehicle . More than one interceptor may be
used when desirable. .
CAhS CU. FT. CAnS CU. FT. CARS CU.FT.
3 6 40 20-1/2 100 28
�� 10 13 50 21-3/4 200 40-1/�
15 15-1/? 60 23 300 53
20 18 70 24-1/4 400 65-1/2
zs 1g-s/s so Zs-i/2 soo �s
30 19-I/4 90 26-3/4� 600 80-1/2
66 .
� �
Sec. 21-21. Plumbing Fixtures.
A. Fixture Materials. Plumbing fixtures shall be constructed
from approved materials, have smooth, impervious surfaces, be free
from defects and concealed fouling surfaces , and, except as permitted
elsewhere in this Code, shall conform to the standards cited in
Table 1 5tandards for Plumbing Materials .
B. Materials for 5pecial Use Fixtures . Materials for special
use fixtures not otherwise covered in this Code, may be stainless
steel soapstone or chemical stoneware, plastic, or may be lined with
lead, copper-base alloy, nickel-copper alloy, Corrosion-resisting
steel, or other materials especially suited to the use for which the
fixture is intended.
C. Overflows .
l. Design of Overflows. In any fixture which is provided
with an overflow, the waste shall be designed and installed so that
the standing water in the fixture cannot rise in the overflow when the
stopper is closed, nor shall any water remain in the overflow when the
fixture is empty.
2. Connection of Overflows . The overflow from any fixture
shall discharge into the drainage system on the inlet or fixture
side of the trap, provided that the overflow from a flush tank
serving a water closet or urinal shall discharge into the fixture
served.
D. Install.ation of Fixtures .
1. ACcess for Cleaning. Plumbing fixtures shall be so
installed as to afford easy access for cleaning both the fixture
and the area about it. Where practical, all pipes from fixtures
shall be run to the nearest wall.
2. Water Tight Joints . Joints formed where fixtures come in
contact with walls or floors shall be sealed.
3. Securing Floor-Outlet Fixtures . Floor outlet fixtures
shall be rigidly secured to floor or floor fl.anges by screws or bolts.
4. 5ecuring Wall-Hung Water Closet Bowls . Wall-hung water
closet bowls shall be rigidly supported by a concealed metal hanger
67.
� �
(Sec. 21-21 (D) (4) )
which is attached to the building structural members so that no
strain is transmitted to the closet connector or any other part of
the plumbing system.
5. Convenient and Accessible. Fixtures shall be set level
and in proper alignment with reference to adjacent walls . No water
closet shall be set closer than fifteen (15) inches from its center
to any side wall or partition nor closer than thirty (30) inches,
center to center, between toil.ets . In addition, there shall be at
least eighteen (18) inches clearance in front of the water closet to
any wall fixture or door. No urinal shall be set closer than
fifteen (15) inches from its center to any side wall or partition
nor closer than thirty (30) inches, center to center, between urinals .
6 . Access to Concealed Connections . Fixtures having
concealed slip joint connections shall be provided with an access of
utility space or other convenient access so arranged as to make the
slip connections accessible for inspection and repair. However,
where such access cannot be provided, access doors may be eliminated
but all joints must be soldered, screwed or otherwise appropriately
joined so as to form a solid connection.
E. Water Supply Protection. The supply line or fittings for
every p1umY�ing fixture shall be so installed as to prevent backflow.
F . Prohibited Fixtures .
l. Prohibited Water Closets . Pan, valve, plunger, offset,
latrine, frostproof and side spud water closets shall be prohibited.
Water closets which have an invisible seal, and unventilated space, or
walls which are not thoroughly washed at each discharge, shall be
prohibited. Any water closet which might permit siphonage of the
contents of the bowl back into the flush tank shall be prohibited.
Every public agency which conducts an establishment serving the public
or open to the public, shall ma.ke every water closet for each sex
maintained within such facilities available without cost or charge to
the patrons, guests , or invitees of such establishment.
2. Prohibited Urinals . Floor-type trough urinals are prohibited.
Urinals which have an invisible seal and unventilated space or wall
68.
f 1 �
(Sec. 21-21 (F) (2) )
which is not thoroughly washed at each discharge shall be prohibited.
Urinals with integral strainers or strainer plates located above the
trap seal are also prohibited.
G. Water Closets.
l. Water Closets for Public Use. Water Closet bowls for
public use shall be of the elongated type.
2 . Water Closets for Children's Use. In nurseries, schools
and other similar places where plumbing fixtures are provided for the
use of children under six years of age, water clasets shall be of
sma.11 size and height suitable for the children's use .
3 . Water Closet 5eats. Water closets shall be equipped
with seats of smooth nonabsorbent material. All seats of water
closets provided for public use shall be of the open-front type.
Integral water closets shall be of the same material as the fixture.
H. Urinals.
1. Urinals for Public Use. Urinals provided for public use
shall have a visible water trap seal without strainers in order to
permit proper cleaning and maintenance of the fixture.
2 . Wall-Hung Trough Urinals. Wall-hung urinals shall be
permitted only in temporary locations . They shall be not less than
6 inches deep and shall be furnished with one piece backs and have
strainers with outlets at least 1-1/2 inches in diameter. The
washdown pipe shall be perforated so as to flush with an even curtain
of water against the back of the urinal. This pipe shall be securely
clamped as high as practicable to the back of the urinal. Trough
urinals shall have tanks with a flushing capacity of not less than
1-1/2 gallons of water for each two feet of urinal. length.
3. Equivalent Length. Trough urinals shall be figured on the
basis of one urinal for each eighteen inches of length, i.e.
24 in. trough equals 1 urinal
36 in. trough equals 2 urinals
48 in. trough equals 3 urinals
60 in. trough equals 4 urinals
72 in. trough equals 5 urinals
Floor type trough urinals are prohibited.
4 . Surrounding Material. Wall and floor space to a point one
foot in front of a urinal lip and 4 feet above the floor, and at
69 .
� �
(Sec. 21-21 (H) (4) )
least one (1) foot to each side of the urinal shall be waterproofed
with a smooth, readily cleanable, non-absorbent material.
I . Flushing Devices for Water Closets and Urinals .
l. Flushing Devices Required. Each water closet, urinal,
clinic sink, or other plumbing fixture which depends on trap
siphonage to discharge its waste contents to the drainage system to
which it is connected, shall be provided with a flushometer valve,
flush tank, or similar device designed and installed so as to supply
water in sufficient quantity and rate of flow to flush to the sewer
the contents of the fixture to which it is connected to cleanse the
fixture and refill the fixture trap.
2 . Separate for Each Fixture. A £lushing device shall serve
only one fixture except that when otherwise approved by the Inspector,
a single flush tank may be used to flush more than one urinal provided
that the flushing cycle is controlled automatically and that each
urinal or section thereof is thoroughly flushed.
3. Flushometer Valves . FlusYiometers shall be installed so
that they will be readily accessible for repair. Fl.ushometer valves
shall not be used where the water pressure is insu£ficient to properly
operate them. When the valve is operated, it shall complete the
cycle of operation automatically, opening fully and closing positively
under the water line pressure. Each flushometer shall be provided
with a means for regulating the flow through it.
4. Water 5upply for Flush Tanks. An adequate quantity of
water shall be provided to flush and clean the fixture served. The
water supply to flush tanks equipped for manual flushing shall be
controlled by a float valve or other automatic device designed to
refill the tank after each discharge and to completely shut off the
water flow to the tank when the tank is filled to operational capacity.
Provision shall be made to automatically supply water to the fixture
so as to refill the trap seal after each flushing. The water supply
to flush tank equipped for automatic flushing shall be controlled
by a suitable timing device .
5 . F1ush Valves in Flush Tanks . Flush valve seats in tanks
for flushing water closets shall be at least one inch above the flood
70 .
� �
(Sec. 21-21 (I) (5) )
level rim of the bowl connected thereto, except in approved water
closet and flush tank combinations designed so that when the tank is
flushed and the fixture is clogged or partially clogged, the flush
valve will close tightly so that water will not spil.l continuously
over the rim of the bowl or backflow from the bowl to the tank.
6. Overflows in Flush Tanks . Flush tanks shall be provided
with overflows discharging to the water closet or urinal connected
thereto and of sufficient size to prevent flooding the tank at the
maximum rate at which the tanks are supplied with water.
Where float valves in flush tanks are beneath the rim of
the tank, there shall be provided an emergency overflow in the wall
of the tank in addition to the internal overflow so as to prevent
the water level in the tank from reaching the air inl.ets of the float
valve should the internal overflow become plugged.
J. Fixtures to have Strainers . A11 plumk�ing fixtures other than
water closets , clinic sinks, trap standard slop sinks with flush
rims, and siphon-action washdown or blowout urinals, sha11 be provided
with metal strainers having a waterway area complying with good
principles of hydraulics .
K. Lavatories . Lavatory Waste Outlets. Lavatories shall have
waste outlets not less than 1-1/4 inches in diameter. A strainer,
pop-up stopper, crossbars or other devices shall be provided to
restrict the clear opening of the waste outlet.
L. Bathtubs. Bathtubs Waste Outlets and Overflows. Bathtubs
shall have waste outl.ets and overflows at least 1-1/2 inches in
diameter and the waste outlet shall be equipped with a suitable
stopper.
M. Showers.
l. Shower Waste Outlet. Waste outlets serving showers shall
be at least two (2) inches in diameter and for other than those in
bathtubs shall have removable strainers not less than three inches
in diameter having strainer openings not less than one-quarter inch
in minimum dimension. Where each shower space is not provided with
an individual waste outlet, the waste outlet must be so located and
the floor so pitched that waste water from one shower does not flow
71.
� �
(Sec. 21-21 (M) (1) )
over the floor area serving another shower. Waste outlets shall be
securely fastened to the waste pipe ma)cing a water tight connection
thereto.
2 . 5hower Compartments. Shower compartments shall have at
least 1, 024 square inches of floor area and be not less than thirty
inches in minimum dimension measured from its finished interior
dimension as the side of a rectangle, altitude of a triangle or
diameter of a circle or other angular shape. The wall area above
built-in tubs having installed shower heads and in shower compartments
shall be constructed of smooth, non-corrosive, and non-absorbent,
water proof materials to a height not less than six feet above the
floor level. Such walls shall form a water tight joint with each
other and with either the tub, receptor, or shower floor.
3. Shower Floors or Receptors . Floors or receptors under
shower compartments shall be laid on or be supported by a smooth
and structurally sound base. Floors under shower compartments other
than those laid directly on the ground surface or where prefabricated
receptors have been provided, shall be lined and made water tight by
the provision of suitable shower pans of durable mate rial. Such
pans shall turn up on all sides at least four inches above the
finished threshold level. Pans shall be securely fastened to the
waste outlet at the pan and the outl.et. Floor surfaces shall be
constructed of smooth, non-corrosive, non-absorbent, and waterproof
materials.
4. Water 5upply Riser. Every water supply riser from the
shower valve to the shower head outlet whether exposed or not, shall
be securely attached to the structure.
N. 5inks . Sink Waste Outlets . Sinks shall l�e providec� with
waste outlets not less than 1-1/2 inches in diameter. A strainer,
crossbar, or other device shall be provided to restrict the clear
opening of the waste outlet. 5inks on which a good waste grinder is
installed shall have a waste opening not less than 3-1/2 inches in
diameter.
72 .
� �
(Sec. 21-21 (0) )
O. Food Waste Grinder Units .
1. Domestic Food-Waste-Grinder Waste Outl.ets . Domestic food-
waste-grinders shall be connected to a drain of nat less than 1-1/2
inches in diameter.
2. Commercial Food-Waste-Grinder Waste Outlets . Commercial
food-waste-grinders shall be connected to a drain of sufficient size
to serve the unit, but in no case connected to a drain of less than
two inches in diameter. Commercial food-waste-grinders shall. be
connected and trapped separately from any other fixtures or sink
compartments .
3. Water Supply Required. All food-waste-grinders shall be
provided with an adequate supply of water at a sufficient f low rate
to insure proper functioning of the unit.
4. Grinders Not to be Connected with Grease Interceptors .
No food-waste-grinders shall be connected so as to discharge through
a grease interceptor.
P . Drinking Fountains.
l. Design and Construction. Drinking fountains shall
conform to American Standard Specifications for Drinking Fountains
(ASA Z4-2-1.942) .
2. Protection of Water 5upply. Steam projectors shall be so
assembled as to provide an orifice elevation as specified by American
Standard Air Gaps in Plumbing Systems (ASA A40-4-1.942) and American
Standard Backflow Preventers In Plumbing 5ystems (ASA A40 .6-1943) .
Q. Floor Drains .
l. Floor Drain Trap and Strainer. F1oor drain traps shal].
have a minimum water seal of three inches and shall be provided with
removable strainers. The floor drain shall be so constructed that
it can be readily cleaned, and the drain inlet shall be easily
accessible at all times . Floor drains subject to backflow shall be
protected by a backwater valve.
2. 5ize of Floor Drains . Floor drains shall be of a size to
serve efficiently the purpose for which they are intended, but the
outlet pipe shall be not less than two inches in nominal diameter.
Floor drains under basement floors shall not be less than three
inches in diameter. 73 .
� �
(Sec. 21-21 (Q) (3) )
3. Provision for Evaporation. ti9here floor drains are subject
to evaporation, they shall be of the deep seal type.
R. Dishwashing Machines . Water shall be supplied to all
dishwashing machines and the water lines shall be protected against
backflow by an air gap or back-flow preventer. Dishwashers shall
discharge separately through an air gap or air break into a trap or
trapped fixture which is properly vented, except that domestic
dishwashing units may be connected to the tail piece of the kitchen
sink or to the head of a garbage grinder unit in those cases where
no other fixtures discharge into the stack above the point of connection
with the sink drain. A commercial dishwasher located above a floor
drain may discharge waste directly through a connection on the sewer
side and immediately adjacent to the floor-drain trap, provided that
the drain line from the machine is properly trapped and vented.
S. Multiple Type Fixtures . Each 18 inch unit of usable length
or circumference of a straight-line or circular multiple use lavatory
shall be considered equivalent to one lavatory as it affects the
drainage and water supply piping sizes and fixtures usage requirement;
provided hot and cold or tempered water suitable for handwashing is
available for each eighteen inch interval.
T. Garbage Can Washers . Garbage can washers shall be separately
trapped. The receptacle receiving the wash from garbage cans shall
be provided with a removal basket or strainer to prevent discharge
of large particles into the building drainage system. Any water
supply connection shall be protected against backflow by an air gap
or a backflow prevention device.
U. Laundry Trays. Laundry Trap Waste Outlet. Each Compartment of a
laundry tray shall be provided with a waste outlet not less than
1-1/2 inches in diameter and a strainer or crossbar to restrict the
clear opening of the waste outlet.
V. Automatic Clothes Washers . A water supply line to an automatic
clothes washer shall be protected against backflow by the use of an
air gap or back-flow preventer. The discharge from such a machine
shall be through an air break.
74 .
(Sec. 21-21 (W) )
Tiv. Special Plumbing Fixtures .
1. Water Connection. Baptisteries , ornamental and lily
pools, ac�uaria, ornamental fountain basins, swimming pools , and
similar constructions when provided with water supplies shall be
protected from backsiphonage as required in this Code .
2 . Approval. Specialties requiring water and waste connections
shall be subznitted for approval of the Inspector.
X. Minimum Plumbing Facilities .
l. Minimum Number of Fixtures . Plumbing fixtures shall be
provided for the type of building occupancy and in the minimum
nu.mk�ers shown in Table 3. , Minimum Number of Plumbing Fixtures .
Types of building occupancy not shown in Table 3 will be considered
individually by the Inspector.
2 . Separate Facilities . In other than residential installations
where toilet and bathing facilities are provided to serve members
and
of both sexes/are designed for use by more than one person at a time,
separate facilities s�iall bs installed for each sex.
Table 3
MtNIMUM NUMBER OF PLUMBING FIXTURES
TYPE OR TYP�OF FIXTURE
BUILDING � Bathtubs Drinking Other
OCCtJPANCY Water Closets Urinals Lavatories or Showers Fountains Fixtures
Assembly— No.of No. of No.of No.of
Places of Persons Fixtures Persons Fixtures
Worship 150 Women 1 300 Men 1 1 1
300 Men 1
Assembly— No.of No.of No.of No.of No.of Nol of
other than Persons Fixtures Persorts Fixtures Persoris Fixtures
places of 1-100 1 ]-200 1 1-200 1 1 for ea. 1 slop sink
worship, 101-200 2 201�00 2 ' 201-400 � 1000 persons
(auditor- 201�00 3 401-(i00 3 401-750 3 �
iums,con- Over 400,add Over 600,add Over 750,add
vention 1 fixtw�e for 1 fiature for 1 fiature for
halls, each additional e�ch 300 men ea�h 500 persons
theaters) 500 men;add 1
for each 300
women
75 .
(Sec. 21-21 (X) (2) )
Table 3 MINIMiJM NiJMBER OF PLUMBING FIXTURES—Continued
Typ�;p,� TYPE OF FIXTUKF, ��_
BUILDING Bathtubs Drinking Other
OCCUPANCY Water Closets Urinals Lavatories or Sltowers Fountains Fixtures
Dormitories, Men: 1 for each 10 1 fc�r e�ch 25 men. 1 for each 12 perso��s. I for eac.h 8 1 for each Laundry ri�ays,
school or persons.Women: 1 Over 1�0,add l fix- (Separate dental lava- persons;for 75 persons 1 for each 50
labor, for ea.8 persons ture for e��cli 50 men tories should be pro- W�men's persons. Slop
also in- vided in cominunity dormitories, sinks, 1 for
stitutional toilet room. A ratio additional bath- eaeh 100 per-
of ( dental lavatory tubs should be sons.
� to each 50 persons installed at the
is recommended.) ratio of L for
cach 30 women.
� Over I50 persons
� � � add 1 fixturc for
�� �� � eacli 20 persons. �
Dwellings— 1 for each dwel- 1 for ea. dwelling ] for ea. Kitchen sink for
One and two ling unit unit dwelling unit ea. dwelling unit.
' family Either a l�undry
� tray or water
; and waste con-
�
� �� nections for a
� clothes waslling
machine in cach
dwelling w�it.
��! Dwellings— 1 for eacli dwelling 1 for ea. dwelling 1 for ea. dwel- Kitchen sink for
I Multiple or unit or apartment unit or apartment ]ing unit or ea. dwelling unit.
i Apartment apartme�it or apartment.
i For apartments
or multiple dwel-
ling units, 1
j double�laundry
� tray for ea. 10
I tmits or 1 auto-
� matic laundry
i �� washing machine
I � for ea. 20 units.*
��, Industrial— � No.of No.of Where more than No.of No.of 1 shower for 1 for
' factories, ea. sex Fixtures ]0 men are em- PeYsons Fixtt�res ea. 15 persons ea. 75 per-
� warehouses, 1-10 1 ploycd: ]-1000 1 to 10 to excessive sons -
� foundries 11-25 2 No .of No. of persons heat or tu
3nd similiar 26-50 3 �lle�� Uri�tnls Over 100 I to 15 occupational
51-75 4 11-30 1 persons hazard 1�rom
� 76-100 5 31-80 ' poisonous,in-
� 1 fixture for ea. b1-160 3 fectiui�s or
I additiona130 16]-240 4 irritating
employes. n�uteriai.
I
76 .
(Sec. 21-21 (X) (2) )
Table 3 MINIMUM NUMBER OF PLUMBING FIXTURES—Continued
TYPE OR TYPF OF FIXTURE
BUII.DING B,ithtubs Drinki�ig Otlier
OC�iJPANCY Water Closets Urinals I,avatories or Showers Fountains Fixtures
* For standards on mobile home parks and travel trailer parking areas see "Environmental Health Guide for Mobile Home Parks
with a Recommended Ordinance"and "Environmental Healtli Guide for Travel Trailer Parking Areas with a Recommended
Ordinanee"published by the Mobile Homes Manufacturers Association in cooperation with the Yliblic Health Serviee.
Institutional— 1 for each 25 men l for ea. 50 men 1 for ea. 10 persons ] for ea. l0 1 for ea.
Other than 1 for eacli 20 women persons 50 persons
hospitals or
penal insti-
tutions(on
ea. occupied �
story)
Hospitals ' Minimum one
Individual Room 1 1 1 slop sink per floor
Wards 1 for ea. 8 patients 1 for ea. 10 patients l for ea. 1 for ea. for first 50 beds;
20 patients 100 one additional
patients for ea. additional
�� � 5�OC Ill�]UI-1'1"1C-
; Waiting rooms 1 1 tion thcreof.
Employees Same as public Same as public Same as public Same as
�� public
Penal Insti-
tutions
Prisoners 1 in ea.cell ] in ea.exercise 1 in ea.cell l on ea. One slop sink
1 in ea.e�cercise room room 1 in ea.exercise area cell block per floor
floor
1 in ca.
� exercise
area
Employees Same as public Same as public Same as public Same as public
Public No.of No.of Urinals may be No.of No.of 1 for ea. 1 slop sink per
Buildings ea. sex Fixttires provided in men's L'rn,��loyces F�ixttsres 75 persons floor
offices,busi- 1-15 1 toilet rooms in lieu 1-15 1
ness mercan- 16-35 2 of water closets 16-35 2
tile,sforage 36-55 3 but for not more 36-60 3 �
and institu- 56-80 4 t}ian 1/3 of ihe 61�)0 4
tional em- 81-110 5 required ntnnber of 91-125 5
ployees 111-150 6 water closets 1 fi�cltue for ea.add-
1 fixture for ea.ad- � itiona] 4S persons
ditiona140 employees
�� Schools 13oys Girls
�lementary 1�40 1/35 1/30 boys 1/50 pupils [n gym or 1/100 Slop sinks, 1
Secondary 1�75 1�45 l�30 boys 1�50 pupils pool sl�ower pupiis on ea. floor
rooms, 1/5 but at
pupils of a lelst one
class per floor
Working men 1�30 working men 1/30 working men 1/30�vorking men 1 fixture or
temporary eqtiivalent
facilities for ea. 100
� working men
_._ __.__ _
77 .
� �
Sec. 21-22 . Hangers and Supports.
A. Attachment to Building. Hangers and anchors shall be
securely attached to the building construction at sufficiently close
intervals to support the piping and its contents.
B. Vertical Piping. Vertical pipe of the following materials
shall be supported at not more than the distance intervals shown.
l. Cast iron soil pipe - cast iron soil pipe shall be
supported at not less than 20 feet intervals and at its base.
2. Threaded pipe (SPS) - screwed pipe (SP5) shall be supported
at not less than 20 foot intervals and at its base .
3. Copper tube - at each story height but not more than
10 foot intervals.
4. Lead pipe - four foot intervals.
5. Plastic pipe - four foot intervals.
C . Horizontal Piping. Horizontal pipe of the following materials
shall be supported at not more than the distance intervals shown.
1. Cast iron soil pipe - five foot intervals except that
where ten foot lengths of cast iron soil pipe are used, ten foot
intervals between supports are acceptable.
2. Steel threaded pipe - twelve foot i.ntervals .
3. Copper tube (1-1/4 inch or less) - six foot intervals.
4. Copper tube (1-1/2 inch or over) - ten foot intervals.
5. Lead pipe - on continuous metal or wood strips for its
entire length.
6 . Plastic pipe - four foot intervals .
D. In Ground. Piping in the ground shall be laid an a firm bed
for its entire length, except where adequate support is athe naise
provided.
E. Material. Hangers, anchors , and supports shall be of inetal or
other material of sufficient strength to support the piping and its
contents. Piers may be of concrete, brick, or other approved material.
F . Strain and Stresses in Pipe. Piping in a plumbing system
shall be installed so as to prevent strains and stresses which will
exceed the structural strength of the pipe. Provisions shall be made
for expansion and contraction and for structural settlement that may
affect the piping.
78.
F 1 �
(Sec. 21-22 (G) )
G. Base of 5tacks . Bases of cast-iron stacks shall be supported
on concrete, brick laid in cement mortar, metal brackets attached
to the building construction, or by other methods approved by
the Inspector. Other piping material shall be so anchored as to
take the load off the stack at the base.
5ec. 21-23. Indirect Waste Piping and Special Waste.
A. Indirect Waste .
l. Air Gap or Air Break Required. Al1 direct waste piping
shall discharge into the building drainage system through an air
gap or air break, as set forth in this Code and in no instance shall
the indirect waste be trapped ahead of the air gap or air break.
2. Food Handling Establishments. In the case of food handling
establishments engaged in the storage, preparation, selling,
serving, processing, or otherwise handling foods , indirect waste
piping shall be provided for refrigerator coils , walk-in freezers ,
ice boxes, ice making machines . steam kettles , steam tables, potato
peelers , egg boilers, coffee urns, and similar types of enclosed
equipment. Dishwashing sink and open culinary sinks are excluded
from this requirement. The indirect waste shall discharge through an
air gap or air break into a trapped and vented receptor except that
an air gap is required where the indirect waste pipe may be under
less than atmospheric pressure.
3. Bar and 5oda Fountain Sinks and Fixtures Remote from the
Wall. Bar and soda fountain sinks , shall be installed as any wall
hung fixtures with "P" traps to fixture and vent carried up above
flood line of fixture . Where vent cannot be run under bar or
counter to a wall, the vent may be looped back to horizontal level
of waste at or below the floor. Where lavatories in barber shops and
beauty parlors , or sinks in laboratories or dental cuspidors are in
rooms away from a wall, a trap shall be placed at floor directly
under the fixture and the waste must be vented at the wall.
4. Connections from Water Distribution System. Indirect
waste connections shall be provided for drains, overflows , or relief
pipes from the water distribution system by means of an air gap.
79 .
� �
(5ec. 21-23 (A) (5) )
5. Sterilizers . Appliances , devices or apparatus such as
stills, sterilizers and similar equipment requiring waste connections
and used for sterile materials shall be indirectly connected by means
of an air gap.
6 . Drips or Drainage Outlets . Appliances , devices, or apparatus
not regularly classed as pl.umbing fixtures but which have drips or
drainage outl.ets, may be drained by indirect waste pipes discharging
into an open receptacle through either an air gap or air break as
shall be determined by the Inspector.
7. Pressure Tanks, Boilers and Relief Valves. The drains
from pressure tanks, boilers, relief valves and similar equipment
shall discharge to the drainage system through an indirect waste by
means of an air gap.
B. Install.ation of Indirect Waste Piping. Indirect waste piping
shall be installed so as to permit ready access for flushing and
cleaning and shall meet the material., pipe sizing, and construction
requirements of this Code.
C. Air Gap and Air Break.
l. Methods of Providing an Air Gap. The air gap between the
indirect waste and the building drainage system sha11 be at least
twice the effective diameter of the drain served and shall be provided
by one of the following methods:
(a) To a Receptor - Extend the indirect waste pipe to an open
accessible individual waste sink, floor drain, or other suitable
fixture which is properly trapped and vented. The indirect waste
shall terminate a sufficient distance above the flood level rim of
the receiving fixture to provide the required air gap and shall be
installed in accordance with this Code.
(b) To the Inl.et Side of the Fixture Trap - Provide an
air gap in the drain connection on the inlet side of the trap
which receives the waste from the indirect waste.
2. Methods of Providing an Air Break. When an air break is
required between the indirect waste and the building drainage system,
the distance to which the outlet of the indirect waste pipe extends
below the flood I.evel rim of the receptacl.e into which it is discharging
shall be prescribed by the Inspector.
80.
� �
(Sec. 21-23 (D) )
D. Receptors or Sumps .
l. Installation. Waste receptors or sumps serving indirect
waste pipes shall not be installed in any toilet room, nor in any
inaccessible or unventilated space such as a clnset or storeroom.
2. Cleanout. If the indirect waste receptor is set below
floor level, it shall be equipped with a running trap adjacent
thereto with the trap cleanout brought level with the floor.
3. Strainers and Baskets. Every indirect waste receptor sha11
be equipped with. a readily removable metal basket over which all
indirect waste pipes shall discharge, or the indirect waste receptor
outlet shall be equipped with a beehive strainer not less than four
inches in height.
4 . 5plashing to be Prevented. All plumbing receptors
receiving the disCharge of the indirect waste pipes, shall be of
such shape and capacity as to prevent splashing or flooding.
5. Domestic or Culinary Fixtures Prohibited as Receptors .
No plumbing fixture which is used for domestic or culinary purposes
shall be used to receive the discharge of an indirect waste except
that in a residence a kitchen sink is acceptable for use as a receptor
for dishwashers and similarly a laundry tray as a receptor for a
clothes washing machine.
6 . 5tand-Pipe Receptors. The stand-pipe receptor for an
automatic clothes washer shall be installed in one of the following
ways:
(a) The stand-pipe receptor shall be individually trapped
and vented. The stand-pipe shall extend no more than 30 inches or less
than 18 inches above its trap.
(b) The stand-pipe receptor shall be installed in the
strainer plate of a floor drain provided the plate is tapped to
receive the stand-pipe . The size of the floor drain shall depend
on the discharge rate of the automatic clothes washer or the floor
area to be drained, whichever is greater.
E. Clear Water Wastes. Water lifts, expansion tanks , cooling
jackets, sprinkler systems, drip or overflow pans, or similar devices
which waste clear water only, when emptying into the building
81.
f 4 /'"�
(Sec. 21-23 (E) )
drainage system, shall discharge through an indirect waste by
means of an air gap.
F. Waste Water Temperature. No steam pipe shall connect to
any part of a drainage or plumbing system, nor shall any water above
140 degrees F. be discharged into any part of a drainage system.
Such pipes shall be connected by discharging into an indirect waste
receptor connected to the drainage system.
G. 5pecial Wastes.
1. Chemical Wastes. Separate drainage systems for chemical
wastes shall be of corrosion resistant material approved by the
Inspector. Materials acceptable for chemical waste drainage systems
include chemically resistant glass pipe, high silicon content cast
iron pipe, vitrified clay pipe, plastic pipe, plastic lined pipe ,
and lead pipe.
2. Neutralizing Device Required for Corrosive Wastes . In
no case shall corrosive liquids, spent acids, or other harmful
chemicals which might destroy or injure a drain, sewer, soil or
waste pipe, or create noxious or toxic fumes or interfere with sewage
treatment processes be discharged into the plumbing system without
being thoroughly diluted, neutralized, or treated by passing through
a properly constructed and acceptak�le dilution or neutralizing device.
Such devices shall be provided automatically with a sufficient supply
of diluting water or neutralizing medium, so as to make its contents
non-injurious before discharge into the drainage system. The nature
of the corrosive or harmful waste and method of its treatment or
dilution shall be submitted to, and accepted by, the Inspector
prior to installation.
H. Swimming Pool.s . Pipes carrying waste water from swimming or
wading pools including pool drainage, back wash from filters , water
from floor drains which serve walks around pools , shall be installed
as an indirect waste. Where the recirculation pump is used to discharge
waste pool water to the drainage system, the pump discharge shall be
installed as an indirect waste to the sewer.
82 .
� �
(Sec. 21-24)
Sec. 21-24. Water Supply and Distribution.
A. Quality of Water Supply. Only potable water shall be
accessible to plumbing fixtures supplying water for drinking,
bathing, culinary use or the processing of fnod, medical or
pharmaceutical products .
B. Identification of Potable and Non-Potable Water. In all
buildings where dual water distribution systems, one potable water
and the other non-potable water, are installed each system shall be
identified either by color marking or metal tags as required in
USAS A13. 1-1959.
C . Water Required. Buildings . Every building equipped with
plumbing fixtures and used for human occupancy or habitation shall
be provided with a potab le supply of cold water in the amounts and
at the pressures specified in this Code . For permanent residences
or buildings in which people are employed, hot potable water shall
be provided.
D. Protection of Potable Water Suppl_y.
1. General. A potable water supply system shall. be designed,
installed and maintained in such manner as to prevent contamination
from nonpotable liquids, solids or gases from being introduced into
the potable water supply through cross connection or any other piping
connections to the system.
2 . Interconnections. Interconnection between two or more
public water supplies shall. be permitted on].y with the approval of
the City Health Inspector.
3. Cross Connection Control. Cross connections are prohibited
except when and where, as approved by the authority having jurisdiction,
suitable protection devices such as the reduced pressure zone backflow
preventer or equal are installed, tested and maintained to insure
proper operation on a continuing basis.
4. zndividual Water 5upplies. Cross connections between
an individual water supply and a potable public supply shall be
prohibited.
5. Toxic Materials . Piping conveying potabl.e water shall
be constructed of non-toxic material.
83.
� �
(Sec. 21-24 (D) (6) )
6. Chemicals and Other 5ubstances . No chemicals or other
substances that could produce either toxic conditions, taste, odor,
or discoloration in a potable water system shall be introduced into
or used in such systems.
7. Painting of Water Tanks . The interior surface of a
potable water tank shall not be lined, painted, or repaired with
any material which will affect either the taste, odor, color or
potability of the water supply when the tank is placed in or returned
to service.
8. Used Piping. Piping which has been used for any other
purpose than conveying potable water shall not be used for conveying
potable water.
9 . Connections to Feed Water 5ystems. Potable water
connections to any feed water systems in which chemicals are
introduced shall be made through an air gap or provided with an
approved backflow preventer located in the potable water line before
the point where such chemicals are introduced. Heating and cooling
shall be equipped taith a backflow preventer in the cold water supply
line to the equipment.
10 . Prohibited ConneCtions to Fixtures and Eql�ipment.
Connection to the potable water supply system for the following
shall be protected against backflow:
(a) Bidets.
(b) Operating, dissection, embalming, and mortuary tables
or similar equipment - in such installation the hose used for water
supply shall terminate at least 12 inches away from every point of
the table or attachments.
(c) Pumps for nonpotable water, chemicals or other
substances - priming connections may be made only through an air gap.
(d) Building drainage, sewer or vent systems .
(e) Any other fixture of similar hazard.
11. Refrigerating Unit Condensers and Cooling Jackets . Except
where potable water provic�ed for a refrigerator condenser or cooling
jacket is entirely outside the piping or tank containing a toxic
84.
(Sec. 21-24 (D) (11) )
refrigerant, as defined in U5AS F39. 1-1964, with two separate thickness
of inetal separating the refrigerant from the potable water supply,
inlet connection shall be provided with an approved backflow preventer.
E. Protection Against Backflow and Backsiphonage.
l. Water Outlets . A potable water system shall be protected
against backf].ow and backsiphonage by providing at each outlet by
(a) an air gap as specified herein b�tween the potable
water outlet and the flood level rim ot the fixture it supplies or
between the outlet and any other source of contamination, or, where
an air gap is impracticable, by
(b) a backflow preventer device or vacuum breaker approved
as hereinafter provided.
2. Minimum Required J�ir Gap.
(a) How measured - The minimum required air gap sha11 be
measured vertically from the lowest end of a potable water outlet to
the flood rim or line of the fixture or receptacle into which it
discharges .
(b) Size - The minimum required air c�ap shall be twiCe the
effective opening of a potable water outlet unless the outlet is a
distance less than 3 times the effective opening away from a wall of
similar vertical surface in which case the minimum required air gap
shall be 3 times the effective opening of the outlet. In no case
shall the minimum required air gap be less than shown in Table 4,
MINIMUM AIR �,�� FQR PLIJ�BING FT�TIT�.� .
____ ___.__ ____ __ --___..
_ .
� TABL�4 - ---- -- _�.._
I MINIi�4UM AIR GAPS FOR PLLJMBING FIXTURES
�, Minimum Air Gap
', F'ixture When Not When Affected
I Affected By By Near Wall
' Near Wall(1) (2) (inches)
(inches)
La�atories and other fixtures with effective 1 1-1�2
� openinb not grcater tl.a❑ 1/2 incli diasneter
Si�lk,laund�y h�ay,goose-neck bath faucets I-1/2 2-I/4
and utllei� fi�rures with efrective ope�iings
� not greater than 3�4" diameter
Over rim bath fillers an� o±her fixhires wit11 2 3
effective openings not greater than 1 inch
diameter
�� Drinkina water fountains-single orifice not 1 1-1/2
�� greater than 7/16(0.437)in.diameter or •
multpple orifices having total area of 0.150
� squa��e inches(area of circle 7/16 ir.
diaineter)
Effective openings greater than one inch 2X Diameter 3X Diarneter of
of effective eftective opening.
, openina.
" 85a
����_�
(Sec. 21-24 (E) (3) )
3. Side walls, ribs or similar obstructions do not affect
air gaps when spaced from inside edge of spout opening a distance
greater than three times the diameter of the effective opening for
a single wall, or a distance greater than four times the diameter of the
effective opening of two intersecting walls .
4 . Vertical walls, ribs, or similar obstructions extending
from the water surface to or above the horizontal. plane of the spout
opening require a greater air gap when spaced closer to the nearest
inside edge of spout opening than speci£i�d in Note l, above. The
effect of three or more such vertical walls or ribs has not been
determined. In such cases , the air gap shall be measured from the
top of the wall.
5. Devices for the Protection of the Potable Water Supply.
Approved backflow preventers or vacuum breakers shall be installed
with any plumbing fixture or equipment, the potable water supply
outlet of which may be submerged and which cannot be protected by
a minimum air gap.
6. Approval of Devices. Before any device for the prevention
of backflow or backsiphonage is installed, it sha11 have first been
certified by a recognized testing laboratory acCeptable to the
Inspector. Devices installed in a building potable water supply
distribution system for protection against backflow shall be maintained
in good working condition by the person or persons responsible for the
maintenance of the system.
7. Protective Devices Required. In the installation of the
following list of fixtures and devices, where an air gap is not
provided or is impracticable, approved backflow preventers shall be
installed in all supply lines according to Table 5, CROSS CONNECTION5
WHERE PROTECTIVE DEVICES ARE REQUIRED AND CRITICAL LEVEL (C-L)
SETTINGS FOR BACKFLOW PREVENTERS.
86 .
(Sec. 21-2��
TABLE 5
CROSS CONNECTIONS GVHERE PKOTECTIVE
DEVICES AR� REQUIRED AND CRITICAL LEVEL(C-L)
SETTINGS FOR BACKFLO�V PREVEN'�ERS 1
Fixtr�re or F_qi�i�znient Methur�of I;tstallation
Aspirators ana j'jr�:tors C-L at IeasT �� iuc;,��, ,��ove floor level of reeep[acle.
Cup Beverage Vending C-L at IeasL l�,in�hes above t7our level of machine.
Machines �
� Dental Units On�models without buiit-in vacuum ureakers GL at
least 6 inches above flood level rim of bowl.
Disliwaslling Machines C-L at least 6 inc}�es above flood level of maclune.
Flushometers(closet GL at least 6 inches above top of fixture supplied.
&urinal)
Uarbage Can Cleailin� C-L at least 6 inches above flood level of rnaclune.
Machine
Hose Outlets GL at least 6 inches above higYiest point on hose
line.
Laundry Machines C-L at least 6 inches above flood level of machine.
Lawn Sprinklers GL at least 12 inches above highest sprinkler or
discliarge outlet.
Steam Tables C-L at least 6 inclies above flood level.
Tank and Vats GL at least 6 inches above flood level rim or line.
___, T'i-ough Urinal.s . C-L at least 30 inches above perforated flush pipe. t.
_ _ _ --
Flush Tanks Equip with an approved ball cock. In all cases the
' ball cock slzould be located above the overflow
�� level of the tank and the outlet terminated one
inch above the overflow o�-provided with a bacic-
flow preventer located at ieast on�inch above
the overflow.
Hose Bibs(where C-L at least 6 inches above flood level of receptacle
aspirators or ejectors served.
could be connected)
ICritical Level (C-L) is defined as tl�e level to wluch the backfl.ow preventer
(vacuum breaker)may be submerged bzfore backf:ow will occur.Where C-L
marking is now sliow❑ on the prevei�ter,the bottom of tlie device shall�be
taken as the C-L.
8. Connections Subject to Back Pressure. Where a potable
water connection is made to a line, fixture, tank, vat, pump or other
equipment with a hazard of back.flow or backsiphonage and where the
water connection is subject to back pressure, and an air gap cannot
be installed, approved reduced pressure zone baCkflow preventer shall
be required. A partial list of such connections is shown in Table 6,
PARTIAL LIST (3F' CRU�� GONNECTIQi^�� SUBJECT TO BAGK PRESSURE.
TA�LE 6
PAR'�IAL LIST OF CROSS CONNECTIONS SUB3ECT TO
BACK PRESSURE
C}iemical Lines Pumps
Cup Beverage Vending Machines Steam Lines
Dock Water Outlets Swimmin�Pools
Individual Water Supplies Tank and Wats—Bottom inlets
� Industrial Process Water Lines
Pressure Tanks Hose Bibs
87.
� �
(Sec. 21-24 (E) (3) )
3. Side walls, ribs or similar obstructions do not affect
air gaps when spaced from inside edge o.f spout opening a distance
greater than three times the diameter of the effective opening for
a single wall, or a distance greater than four times the diameter of the
effective opening of two intersecting walls.
4 . Vertical walls, ribs, or similar obstructions extending
from the water surface to or above the horizontal plane of the spout
opening require a greater air gap when spaced closer to the nearest
inside edge of spout opening than specified in Note 1, above. The
effect of three or more such vertical walls or ribs has not been
determined. In such cases , the air gap shall be measured from the
top of the wall.
5. Devices for the Protection of the Potable Water Suppl,y.
Approved backflow preventers or vacuum breakers shall be installed
with any plumbing fixture or equipment, the potable water supply
outlet of which may be submerged and which cannot be protected by
a minimum air gap.
6. Approval of Devices. Before any device f or the prevention
of backflow or backsiphonage is installed, it shall have first been
certified by a recognized testing laboratory acCeptable to the
Inspector. Devices installed in a building �otable water supply
distribution system for protection against backflow shall be maintained
in good working condition by the person or persons responsible for the
maintenance of the system.
7. Protective Devices Required. In the installation of the
following list of fixtures and devices, where an air gap is not
provided or is impracticable, approved backflow preventers shall be
installed in all supply lines according to Table 5, CROSS CONNECTION5
WHERE PROTECTIVE DEVICE5 ARE REQUIRED AND CRITICAL LEVEL (C-L)
SETTING5 FOR BACKFLOW PREVENTERS.
86 .
� �
(Sec. 21-24 (F) )
F. Installation of Devices.
1. Vacuum Breakers - Bacuum breakers shall be installed with
the critical level at least six (6) inches above the flood level rim
of the fixture they serve and on the discharge side of the last
control valve to the fixture. No shut off val.ve or faucet shall be
installed beyond the vacuum breaker.
2. Reduced Pressure Zone Backflow Preventer - A reduced
pressure zone type backflow preventer may be installed subject to
full static pressure.
3. Devices of All Types - Backflow and backsiphonage preventing
devices shall be accessibly located preferably in the same room with
the fixture they serve. Installation in utility or service spaces,
provided they are readily accessible, is also permitted.
G. Tanks and Vats - Below Rim Supply.
l. Where a potable water autlet terminates below the rim of a
tank or vat and the tank or vat has an overflow of diameter not less
than given in Table 7, SIZE5 OF OVERFLOW PIPE5 FOR WATER SUPPLY
TANKS, the overflow pipe shall be provided with an air gap as close
to the tank as possible.
2. The potable water outlet to the tank or vat shall terminate
a distance not less than 1-1/2 times the height to which water can
rise in the tank above the top of the overflow. This level shall
be established at the maximum flow rate of the supply to the tank or
vat and with all outlets closed except the air-gap and the overflow
outlet.
H. Separation of Water Service and Building Sewer. Except as
permitted below, the underground water serviCe pipe and the building
drain or building sewer shall be not less than 10 feet apart
horizontally and shall be separated by undisturbed or compacted
earth. The water service pipe may be placed in the same trench with
the building drain and building sewer provided approval is given by
the Inspector and the following conditions are met:
1. The bottom of the water service pipe at all points shall
be at least 12 inches above the top of the sewer line at its highest
point. �
u
I
88. �
i
�
i
�
� �
(Sec. 21-24 (H) (2) )
2. The water service pipe shall be placed on a solid shelf
excavated at one side of the common trench.
3. The number of joints in the service pipe shall be kept
to a minimum.
4. The materials and joints of sewer and water service pipe
shall be installed in such manner and sha11. possess the necessary
strength and durability to prevent the escape of solids, liquids ,
and gases therefrom under all known adverse conditions such as
corrosion, strains due to temperature changes, settlement, vibrations
and super-imposed loads .
I. Water Service Near 5ources of �oll.ution. Potable water service
pipes shall not be located in, under or above cesspools, septic
tanks, septic tank drainage fields or seepage pits . A separation of
10 feet shall be maintained. Where the water service must cross
the sewer line, the bottom of the water service within 10 feet of the
point of crossing, shall be at least 12 inches above the top of the
sewer line.
J. Stop and Waste Valve"s Prohibited. Combination stop-and-waste
valves or cocks shall not be installed underground in water service
piping, unless it has a wheel handle drain.
K. Water Pumping and Storage Equipment.
l. Pumps and Other Appliances . Water pumps, filters, softeners,
tanks, and all other appliances and devices used to handle or treat
potable water shall be protected against contamination.
�
2. Prohibited Location of Potable Supply Tanks. Potable �
water gravity tanks or manholes of potable water pressure tanks shall �
not be located directly under ar�y soil or waste piping. �
L. Water Pressure Booster Systems .
l. Water Pressure Booster Systems Required. When the water
pressure in the public water main or individual water supply system
is insufficient to supply the probable peak demand flow to all plumbing
fixtures and other water needs freely and continuously with the
minimum pressures and quantities specified in this Section or elsewhere
�
in this Code and in accordance with good practice, the rate of supply �.
shall be supplemented by: �
i
89. I
�
�
�
!
�
�
(Sec. 21-24 (L) (1) (a) )
(a) An elevated water tank.
(b) A hydro-pneum.atic pressure booster system.
(c) A water pressure booster pump installed in accordance
with this Code.
2. 5upport. All water supply tanks shall be supported in
accordance with the building cod.e or other regulations which apply.
3 . Overflows for Water Supply Tanks . Each gravity or suction
water supply tank shall be provided with an overflow having a diametet
not less than shown in Table 7, SIZE5 OF OVERFLOW PIPES FOR T�TATER
SUPPLY TANKS . The overflow outlet shall discharge above and within
not less than six (6) inches of a roof or roof drain, floor or floor
drain or over an open water supplied fixture. The overflow outlet
shall be covered by a corrosion resistant screen of not less than
16 x 20 mesh to the inch and by 1/4 inch hardware cloth or shall
terminate in a horizontal angle seat check valve. Drainage from
overf�.ow pipes shall be directed so as not to freeze on roof walkways .
_ _ -----.
_ ,
TABLE 7 '
SIZ�S 1 FOR OV�RFL01�"I PIPES FOR WA'g'��2 SLJI'P'L4'T�,NKS
�� Maxiinum Capacity Diameter of Maximum Capacity Dianleter of
of Water Supply Overflow Pipe of Water Supply Overflow Pipe
Line to Tank (Indles ID� L,ine to Tarik (Inches ID)
0- 15 gpm 1-1/' 400- 700 gpm �
15- 50 gpm 2 700-1000 gpm 6
50-100 gpm 2-1/2 Over 1000 gpm 8
100-200 gpm 3
200-400 gpm 4
ICumptited by the inetliod of N�S Motio. 31,for vertica;pipes flowinb i�oi�
greater than 1/2 full at terminal velocity.(1/� fell for 1-1/2 pipe).
_ _ _ _ _ _ ...
4. Covers . All water supply tanks shall be covered to keep
out unauthorized persons , dirt, and vermin. The covers of gravity
tanks shall be vented with a return bend vent pipe having an area
not less than the area of the down feed riser pipe and the vent shall
be screened with corrosion resistant screen having not less than 14
and not more than 20 openings per linear inch.
5. Potable Water Inlet Control and Location. Potable water
inlets to gravity tanks shall be controlled by a ballcock or other
automatic supply valve so installed as to prevent the tank from
overflowing. The inlet shall be terminated so as to provide an
90 .
(Sec. 21-24 (L) (5) )
accepted air gap but in no case less than 4 inches above the overflow.
6. Tank Drain Pipes. Each tank shall be provided at its
lowest poin� with a valved pipe to permit emptying the tank which
shall discharge as required for overflow pipes and not smaller in
size than shown in Table 8, SIZES OF DR.AIN PIPES FOR WATER TANKS.
_----_ .__
__._ _. _ . _ _ TAI3LE 8
+
� SIZE Ct'DRAIIvT PIP�,S FOR���T�ER TAN1iS
ii Tank Capacity I�iain Pipe Tank Capacity Drain Pipe
°� (galions) (incJles) (gallons} (inclies�l
� �
"' Up tu 75G 1 3001 to SOJQ ?-1��
i
!j 751 to ]500 1-1/? 5001 tc� 75�JG 3
1501 to 3000 2 Over 7500 4
� _ __ _ __ _
7. Low Pressure Cut-Off Required on Booster Pumps . When a
booster pump is used on a water pressure booster system, there shall
be installed a low pressure cut-off on the booster pump to prevent
the creation of a vacuum or negative pressure on the suction side
of the pump, thus cutting off water to other outlets .
8. Pressure Tanks - Vacuum Relief. All water pressure tanks
shall be provided with a vacuum relief valve at the top of the tank
which will operate up to a maximum water pressure of 200 p.s .i. and
to maximum water temperatures of 200 degrees F . The minimum size
of such vacuum relief valves shall be 1/2 inch.
M. Disinfection of Potable Water System. New or repaired
potabl.e water systems shall be disinfected prio� to use whenever
required by the Inspector. The method to be followed shall be that
prescribed by the health Inspector.
N. Water Supply System Materials .
l. Water Service Pipe.
(a) Water service piping shall be made of asbestos cement,
brass or copper pipe or tubing, copper tube, lead, cast iron water
pipe, wrought iron, open-hearth iron, plastic, or steel. Copper
tube when used underground shall be Type K or L . Al1 threaded
ferrous pipe and fittings shall be galvanized or cement lined. When
used underground in corrosive soil or fill, all ferrous pipe and
fittings shall be coal-tar coated and threaded joints shall be coated
and wrapped when installed.
91 .
� �
(Sec. 21-24 (N) (1) (b) )
(b) Plastic pipe and fittings may be used in a water
district organized under Chapter 247 R.S.Mo. 1969 , for mains and
services to a point five (5) feet outside the foundation or walls
of a building. All plastic pipes shall be installed below the recorded
frost penetration, at or below the minimum depth prescribed by the
Inspector.
(c) Polyethylene Pipe (PE) (3/4" , 1" , and 1-1/4" nominal
sized) shall be made from ultra-high molecular weight polyethylene
resin and shall conform to all requirements of A5TM 5pecifications
D 2239 , "Specifications for Polyethylene (PE) Plastic Pipe (SDR-PR) " ,
as they apply to Type III, Grade SII, Designation Code PE 3306, with
a hydrostatic design stress of 630 psi for water at 23 degrees C.
(73 .4 degrees F. ) and 500 psi for water at 37 . 8 degrees C . (100
degrees F. ) and with the additional provisions listed herein.
(d) The polyethylene extrusion compound from which the
pipe is extruded shall meet the requirem.ents of Type III, Grade III,
Class C material as described in ASTM Specifications D 1248,
"5pecifications for Polyethylene Molding and Extrusion Materials" .
In addition, the weight average molecular weight of the extrusion
compound shall not be less than 1, 750 ,000 as determined by the Gel
permeation chromatography method using a value of 71 molecular weight
per angstrom for high density polyethylene.
(e) Pipe shall meet the specifications of the National
Sanitation Foundation Testing Laboratories, Ann Arbor, Michigan.
These specifications require that the pipe or tubing be manufactured
from Virgin Polyethylene, and that no scrap material be used and
that it contain at least 2 percent Carbon black as required by
Commercial 5tandard No. CS 255. 63 .
(f) All pipe shall be a minimum of Class 160 psi. The
Standard Thermaplastic Pipe Dimension Ratio (SDR) , the ratio of the
�ipe inside diameter to the wall thickness, shall not exceed 7.
(g) The minimum burst pressure, when determined with at
least five specimens shall be at least 630 psi. This pressure was
determined in accordance with ASTM D 1599 , "Method of Testing for
Short-Time Rupture 5trength of Plastic Pipe, Tubing and Fittings" .
92 .
� �
(Sec. 21-24 ( (N) (1) (g)
The fiber stress
(ISO Formula - 5tress = Pressure x Mean Diameter
2 x Minimum Wall Thickness)
used to derive these test pressures is 2 ,520 psi, the minimum fiber
strength of PE 3306 Pipe.
(h) The joints shall be designed so that the pipe and
fittings may be connected on the job.
(i) All pipe and fittings shall conform to the specifications
of the National Sanitation Foundation (NSF) Testing Laboratories ,
Ann Arbor, Michigan.
(j ) As a minimum, the pipe shal.l have the following
markings applied at intervals , as specified in the appropriate standards:
(1) Nominal size.
(2) Type of plastic.
(3) SDR or Class .
(4) Manuf acturer.
(5) Commercial Standard Number.
(6) N5F (National Sanitation Foundation) Seal of
Approval.
(k) Only pipe and fittings made in accordance with these
specifications by manufacturers who furnish certificates of conformance
to the Inspector shall be acceptable. A1l installations must conform
to the provisions of this Code.
2. Water Distribu�ion System Pipe. Water distribution system
piping shall be made of brass or copper pipe or tubing, galvanized
wrought iron pipe, galvanized open-hearth iron or galvanized steel
pipe.
3. Fittings . The materials of which water supply system
pipe fittings are made shall conform to the type of piping materials
used in the water supply system. The fittings shall have no ledges ,
shoulders, or reductions which can retard or obstruct flow in the
piping.
0. Allowance for Character of Soil and Water. When selecting
the material and size for water service supply pipe, tube or fittings
due consideration shall be given to the action of the water on the
93 .
� �
(5ec. 21-24 (0) )
interior of the pipe and of the soil, fill or other material on the
exterior of the pipe.
P. Water Supply Control.
1. Building Valve. Each building water service shall be
provided with a gate valve or stop and waste valve located inside
the building near the point the water service enters .
2 . Tank Controls. Supply lines from pressure or gravity
tanks shall be valved at or near the tanks.
3 . Valves in Dwelling Units. In two family or multiple
family dwelling units one or more control valves shall be provided
so that the water to any unit may be shut off without stopping flow
of water to the other units . These valves shall be readily accessible
inside the unit controlled.
4 . Riser Valves . Except in single family dwellings a valve
shall be installed at the foot of each water suppl.y riser. In
multi-story buildings a valve shall be installed at the top of each
water supply downfeed pipe from a booster system.
5. Individual Fixture Valves. In occupied buildings other
than individual dwellings, the water service line to each fixture or
other piece af equipment shall be provided with a valve or fixture
stop to shut off the water to the fixture or to the room in which
it is located and sill cocks and wall hydrants shall be separately
controlled by a valve inside the building. Al1 water closets shall
be separately valved.
6. Water Heating Equipment Valve. The water supply branch
to each hot water storage tank or water heater shall. be provided
with a valve located near the equipment.
7. Valves to be Accessible. A11 water supply control valves
shall be placed so as to be accessible for service and maintenance.
Q. Water Supply Distribution.
1. Size of Water Service . The water service pipe shall be
of sufficient size to furnish water to the building in the quantities
and at the pressure required elsewhere in this Code. It shall, in
no case, be less than 3f4 inch nominal diameter. Methods for sizing
the water service pipe are described in Appendix B of the National
Plumbing Code.
94 .
(Sec. 21-24 (Q) (2) )
2 . Supply �emand. The supply demand in gal.lons per minute
in the building water distributing system shall be determined on the
basis of the load in terms of supply fixture units and of the
relationship between load and supply demand. (See Section D .3
of _Appendix B of the National Plumbing Code for details of a
suggested procedure. )
R. Procedure in 5izing the Water Distribution System.
1. Design of Building Water Distribution System. The design
of the building hot and cold water distribution system shall conform
to good engineering practice. Methods used to determine pipe sizes
shall be acceptable to the Inspector. (A guide to the design of
building water supply systems is given in Appendix B of the National
Plumbing Code. ) At the points of interconnection between hot and cold
supply piping system to individual fixtures, appliances, or devices ,
provisions shall be made to prevent flow between the piping systems.
2 . Size of Fixture Supply. The minimum size of a fixture supply
pipe shall be as shown in Table 9 , MINIMUM 5IZE5 OF FIXTURE WATER
SUPPLY PIPES . The fixture supply pipe shall terminate not more than
30 inches from the point of connection to the fixture and in every
instance shall extend into the room through the floor or wall
adjacent to the fixture.
. TA�LE 9
MII�I�MC1M Sd7.ES OF FIXTUItE WAT1:R SUl'PLY PIPES
Tv�%e of Fixtir,�e of�De��ice Nomival Pipe Si.>e�I�rclaesJ
13atli iuUs ��?
CombinaCion sink and tray l��
Driri�:ing fuuntain 3�g
I�ishevashe�(domestic) 1�2
Electric d�inkii�g water cooler 3��
Kitchen sink,residential 1/�
Kitchen sink,commercial 3/4
Lavatory 3/�
Laund.y tray 1,2 and 3 compartments 1/2 �
Shower(single head) 1/�Z
Sinks(service,slop) I�Z
Sinks flushing rim �/4
Urinal(flush tank) �/�
Urinal(direct flush valve) 3/4
Water closet(tank type) 3/R
Water closet(flush valve type) 1
Hose bibs 1�'
Wali hydrant li�
95.
(Sec. 21-24 (R) (3) )
3. Minimum Required Flow Rates and Pressures . Based on the
minimum static water pressure available, pipe sizes shall be selected
so that under conditions of peak demand a minimum flow pressure and
f low rate at the point of discharge shall not be less than shown in
Table 10, MINIMUM R.EQUIRED FLOW RATES AND PRESSURES .
In determining minimum pressures at the outlets , allowance
shall be made for the pressure drop due to fraction loss .
---- --- TA13LE 10
IvI1NIMUNI REQUIIZBD FL01v RATGS ANll PR��S.�'i�)RES
Locatior7 Flntiv Pre ssr�re F7u�v Rate (at puint
p.s.i. �pr�r of discliurgeJ
Ordinary basin faucet � 2
Self-closiiig basin faucet � '-11'
Sink faucet 375 inclt s 3
Sinlc fau�cet 1�2 inch � 3
Bathtub faucet � `�
Laundry tub cuck 1�2�inch � `�
Shuwer 5 �
Ball-cocl:for clusei P '
'� Flusli valve for closetl , 15 15-35
�� Flushometer valvc for urinal 15 15
i IS ;la
� Drin]<ing fouuCain outlets - �
� Si1f c�e�ck-wall hydrant �Q 5
� F��.is,h valves for wall hung,blow-out
� arid sy�hun-jet water closeis ?� 3�
ALitolnatiC disil�vasheT �5 `�
� Aut_o�iiatic clotlies washer 15 3
� 1Wide :ange dtte to variation it� design and type of�loset flusi�i valves.
4 . Inadequate Water Pressure. Whenever water pressure from
the street main or other sources of supply is insufficient to provide
tlow pressures at fixture outlets as required under this section, a
booster pump and pressure tank or other approved means shall be
installed on the building water supply system..
5. Variable Street Pressures . Where street water main
pressures fluctuate, the building water distribution system shall
be designed for the minimum pressure availabl.e.
6. Regulation - Water Pressure.
(a) Where the water pressure in any type building is
above 80 psi, an approved water pressure regulatar or regulators
with strainers shall be inst�.11ed to reduce water pressure to fixtures
and appliances not to exceed 80 psi at any time. 5i11 cocks and
outside hydrants may be left on full main pressure at the option of
the owner.
96 .
� �
(Sec. 21-24 (R) (6) (b)
(b) Where pressure reducing valves are installed, provisions
shall be made to permit by-pass flow of water around the valve back
into the main when pressures due to thermal expansion on the outlet
side of the valve exceeds the pressure in the main. Pressure
reducing valves with builtin by-pass check valves wi11 be acceptable.
(c) Approved valves shall comply fully with a11 applicable
requirements of AS5E 5tandard No. 1003 - Water Pressure Reducing
Valves for pomestic Water Supply Systems .
(d) Where special conditions exist due to the type of
installations , approval must be given by the Inspector for any
deviation from above .
7. Hazard and Noise. T�Ihen water pressures are excessive,
air chambers or other approved mechanical devices shall be provided
to reduce water hammer or line noises to such an extent that no
pressure hazard to the piping system will exist.
S . Hot Water Distribution.
1. Hot Water Supply 5ystem. In residences and buildings
intended for continuous occupancy, hot water shall be supplied to all
plumbing fixtures and equipment used for bathing, washing, culinary
purposes, cleansing, laundry or building maintenance.
2. Return Circulation - Where Required. Hot water supply
systems in buildings four or more stories high or in buil.dings where
the developed length of hot water piping from the source of hot
water supply to the farthest fixture supplied exceeds 100 feet shall
be of the return circulation type .
T. 5afety Devices .
l. Pressure Relief Valves and Temperature Relief Valves or
Energy Cut-Off Devices Required. Equipment used for heating water or
storing hot water shall be protected by approved safety devices in
accordance with one of the following methods:
(a) A separate pressure relief valve and a separate
temperature relief valve; or
(b) A combination pressure and temperature relief valve; or
(c) A separate pressure relief valve and an energy cut-off
device.
97.
� �
(Sec. 21-24 (T) (2) )
2 . The safety valve setting shall not exceed the tank rated
working pressure.
3 . A1.1 safety devices shall meet the current requirements
of the A5A, ASME, or the UL Listing by U. , AGA or National Board of
Boiler etc. shall constitute evidence of conforanance with these
standards . Where a device is not listed by any of these, it must
have certification by an approved laboratory as having met these
requirements.
(a) Pressure Relief Valve. Pressure relief valves shall
be installed for all equipment used for heating or storage of hot
water. The rate of discharge of such a valve sha11. limit the pressure
rise for any given heat input to ten (10) percent of the pressure
at which the valve is set to open.
(b) Temperature Relief Valves . Temperature relief valves
shall be installed for all equipment used for the heating or storage
of hot water. Each valve shall be rated as to its B.T.U. capacity.
At 210 degrees F . , it shall be capable of discharging sufficient
hot water to prevent any further rise in temperature.
(c) Approvals . 5elf closing combination pressure and
temperature relief valves or separate pressure and temperature
relief valves which have been tested and approved by or meet the
specification requirements of the AGA or the National Board of Casualty
& Surety Underwriters shall be considered acCeptable.
(d) Relief Va1ve Location. Temperature relief valves
shall be placed directly above tanks served and in no case more than
three (3) inches away from such tanks. Pressure relief valves may be
located adjacent to the equipment they serve. There shall be no
check valve or shut off valve between a relief valve and the heater
or tank for which it is installed.
(e) Relief Outlet Wastes. The discharge pipe shall not be
smaller than the relief valve outlet and it shall. be an indirect
connection into a plumbing fixture , floor drain, sump pit, or other
approved point of discharge. Relief outlets when connected to the
building drainage system shall be indirectly connected and shall
terminate within six (6) inches above the floor.
98 .
� �
(Sec. 21-24 (T) (3) (f) )
(f) Pressure Marking of Storage Tank. Any storage tank
hereafter installed for domestic hot water shall have clearly and
indelibly stamped in the metal, or so marked upon a plate welded
thereto or otherwise permanently attached, the maximum allowable
working pressure. Such markings shall be placed in an accessible
position on the outside of the tank so as to make inspection or
reinspection readily possible. All storage tanks for domestic hot
water shall meet the applicable ASME standards .
4. Energy Cut-Off Devices.
(a) Energy cut-off devices shall be of adequate performance
rating for the equipment served. Immersion type energy cut-off devices
shall be located so that the temperature sensing el.ement is immersed
in the water within the tank and controls the temperature of the
water within the top six inches of the tank. When approved by the
Inspector, contact types shall be install.ed so that the sensing
element is responsive to the highest water temperature within the
equipment served and is securely fastened in pl.ace. Such devices
shall meet the requirements of applicable USA5Z standards.
(b) When an energy cut-off device is used, it shall be
factory applied by the heater manufacturer, and comply fully with
the appropriate standards of the USASI and UL. They shall be installed
in a manner that will isolate them from ambient, flue gas temperatures
and other conditions not indicative of the temperature of the water
within the heater.
5. Vacuum Relief Valves . Where a hot water storage tank or
an indirect water heater is located in an elevation above the fixture
outlets in the hot water system, a vacuum relief valve shall be
installed on the storage tank or heater.
6 . Pressure Marking of Hot Water 5torage Tank. Hot water
storage tanks shall be perma.nently marked in an accessible place
with the maximum allowable working pressure.
U. Miscellaneous .
1. Drain Cocks or Valves for Hot Water Storage Tanks. Drain
cocks or valves for emptying shall be installed at the lowest point
of each hot water storage tank.
99 .
� !�'"�
(Sec. 21-24 (U) (2) )
2. Control Valve Design. Excepting single fixtures, control
valves on all water lines shall when fully opened have a cross
sectional area not less than 85 percent of the cross sectional area
of the line in which they are installed.
3. Used T✓�ater Return Prohibited. Water used for cooling of
equipment or other processes shall not be returned to the potable
water system. Such water shall be discharged into a drainage
system through an air gap or may be used for nonpotable purposes on
written approval of the Inspector.
Sec. 21-25. Drainage System.
A. Materials .
l . Above Ground Piping Within Buildings .
(a) Soil and waste piping above ground in buildings shall
be of brass or copper pipe, copper tube, extra heavy or service
weight cast iron, galvanized wrought iron, gal.vanized open-hearth
iron, galvanized steel or lead, except that in the case of residential
dwellings up to and including four family dwellings if separated by
two (2) hour fire walls between the four (4) family units, approved
plastic pipe is acceptable. Al1 plastic pipe, fittings and solvent
cement shall have the seal of approval of the National Sanitation
Foundation (N5F) .
(b) Plastic Drainage Waste and Vent Piping.
(1) Use Schedule 40 DWV plastic pipe and fittings
shall be limited to Residential Dwellings up to and including four
family dwellings and in no case to exceed stack heights of 36 feet.
Plastic drainage waste and vent piping shall not be connected to any
other material. by means of a horizontal lead caulked joint.
(2) Conventional pipe clamps , brackets or strapping
that have a bearing width of 3/4 inch or more are suitable supports .
Supports for horizontal runs of pipe 1-1/2 inches or less in diameter
shall be at 3 foot centers as a maximum. Supports for larger diameters
shall have a maximum spacing at 4 foot centers . Trap arms shall be
supported at the trap discharge . Vertical pipes shall be supported
at each story height but not more than 10 foot intervals and elsewhere
100 .
� �
(Sec. 21-25 (A) (1) (b) (2) )
as required to maintain alignment. Al1 supports shall permit expansion
and contraction of the pipe without binding. Horizontal piping shall
be supported at each change of directions.
(3) In a DWV system an expansion allowance of 1/2
inch per 10 foot length of pipe is required. Expansion fittings
utilize a rubber o-ring that should be lubricated with water pump
grease, petroleum je11y or other water-resistant grease to facilitate
assembly. Protect the operating end of the expansion fitting from dirt
by means of a thin plastic, rubber or cloth sleeve. DWV systems
having short runs with frequent offset will not require expansion
fittings . On straight horizontal runs exceeding 20 feet expansion
fittings shall be installed. On stacks with water-closet connections
on more than one floor, an expansion fitting shall be installed between
the closet connection fittings.
A11 stacks exceeding 20 feet in height shall have
an expansion joint installed in any convenient location. On horizontal
runs, the expansion fitting may be installed at any convenient
location. In all cases, expansion fittings shall be installed with
operating end upstream and solvent welded to the next downstream
pipe or fitting. The expansion joint shall be set for maximum
expansion or contraction based on the installation temperature.
2. Underground Building Drains . All underground building
drains shall be of cast iron, galvanized steel, galvanized ferrous
alloy, lead, copper pipe or type L or K copper tube. Where threaded
joints are used underground, they shall be coated and wrapped when
installed.
3. Fittings. The materials of which drainage system pipe
fittings are made shall conform to �he type of piping materials used
in the drainage system. The fittings shall have no ledges, shoulders,
or reductions which can retard or obstruct flow in piping. Threaded
drainage pipe fittings shal.l be of the recessed drainage type.
B. Building Sewers and Drains .
1. Building Sewers.
(a) In Trench Separate from Water Service: If the building
sewer is installed in a trench separate from the water service , the
101.
� �
(Sec. 21-25 (B) (1) (a) )
sewer pipe material shall be of either asbestos cement, cast iron,
copper tube type L or K, copper pipe or vitrified clay. Joint shall
be watertight and root proof. Concrete, fibre glass, or Schedule 40 PVC
AUS plastic pipe may be used if approved by the Inspector.
(b) In Trench with Water 5ervice: If the building sewer
is instal.led in the same trench as the water service, the sewer
pipe material shall be durable, corrasion resistant, and so installed
as to remain watertight and root proof . The sewer shall be tested
with a ten foot head of water � equivalent and found to be tight.
2. 5ewer or Drain in Filled Ground. When a building sewer or
building drain is installed in filled or unstable ground it shall be
on an approved continuous supporting system.
3. Existing Building Sewers and Drains . Existing building
sewers and drains may be used in connection with new building sewer
and drainage systems only when found by examination and test to conform
to the new system in quality or material prescribed by this Code , and
the Inspector shall notify the owner to make the changes necessary
to conform to this Code.
4. Drainage Pipe Installation. Pitch of Horizontal Drainage
Piping. Horizontal drainage piping shall be installed in uniform
alignment at uniform slopes not less than 1/4 inch per foot for 3 inch
diameter and less, and not less than lJ8 inCh per foot for diameters
of 4 inches or more. [nThere conditions do not permit building drains
and sewers to be laid with a fall as great as that specified, a less
slope may be permitted as determined from Table 11 provided computed
velocity is at l.east 2 feet per second.
102 .
(�eco 21-�25 (B) (4) �
�'A13I.G 1 1
� APPROXIMAT� DISCN�II:GE RA'T�S �1NU VELC�C'I'�'ILS 1N SLC?�1NG I)��1NS
i
� 1%lotivi��g Hcrlf�l�iilll
Dischnrgc�I�ntc ancl Velncih>'
��� Actualinside 1�16in./ft. slope l/4 in./ft. slope ��4 in./ft. slope 1/�� in.�ft. slope
cliameter of Discl�. Vel. Disda. Ved. l�i�cii. Vel. Discli. Vel.
� pipe-Inches gpm fps gpiil fps �pn� fps gpm fj�s
1-]/4 3.40 1.78
1-3/8 3.13 1.34 4.44 1.90
1-1J2 � �.91 1.4� 5.53 2A1
, 1_S�8 4.8] L50 6.�0 2.12
�, � 8.42 1.7�� 11.9 2.43
2_1�2 10.8 1.41 15.3 1.99 21.6 2.82
� 17.6 1.59 24.8 �.'S �5.1 3.19
� 4 26.70 1.36 37.8 1.93 53.4 �.73 75.5 3.86
5 48.3 1.58 68.3 2.23 �6.( 3.16 137. 4.47
� 6 78.5 1.78 1 l7. ?.5�2 l�7. 3.57 222. 5.04
8 170. 2.17 240. 3.07 340. 4.34 480. . 6.13
l0 308. 2.5'� 43(,. 3.5� (i16. 5.04 R7?. 7.12
12 500. 2.83 707. 4.01 99��, 5.67 1413. 8.02
�IIalf full means filled to a de�th equal to onc-l�alf of the insidc diameter.
��Computed from the Mamling Formula for 1/?-fiill pipe, n=0.015
�� For 1�4 full: multiply disch�trge by ."?74 F;or full: multi�ly discharge by '_.00
� �multiply velocity by .701 mnlliply velocity by ].UO
��' For 3�4 full: �uultiply discharge by l.S? For siliootller pipe: mulfiply discllarge and velocity by 0.015
�� multiply velocity tiy 1.1� �u�d �livide by "n"value of smoother pipe.
_ __ __. _ --_ _ __
C . Fixtl�rA iTpZtg .
l . Load on Drainage Piping. The load on drainage system piping
shall be computed in terms of drainage fixture unit values in
accordance with Table 12 and this Code .
� _
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.�/ y ^:� r .-i, � v� �in . :r. t 'l ^� 'O .r'-O � .� " .- Y p., 5 U ;,.
Q Y., V Uq Y � ��. � � O O U C �cJ �.-�. a� v� .:4 .=c� 'j T- � u n� �� V u U � ^ � ��.- 4.+ N
� � ^y :� r- � � � ✓ .. ';y : v� . ^ � G ? r " a.� � O .'k O O
cJ O '� 'y .;J � c� `�3 cJ ..r .c� �p v -, ,-, ^ i� � � ���� a� a� C R+ � � .=� �
Or-� ro w �' V'J .' .' .^ :� b �U QJ O Q� aJ, .'. y v' V] C/1 (1, . . . �� ^, :.
r� 'J ..-�. '� .J .� y :�7 cy �� � . � v� � ca al ca cJ .�- �
N U .-,-�� cJ .= u .�-� � � � :-• ^ O �� v m �� .:� � �7-� � ti v�
� � ;a '„� ^�7 •."; O O O � o� �;', ;�' p - +J �u c�-J r., � «r,' .= .^ .'" c-� c� z3
' Ew�' �C W !� aa Li C.i C.> U (� C.� �1 Q f1.. ^�--'.' .k" r! �-1 v� v] V: �� •:J � r� � ✓ 5
� 1^3.
(Sec. 21-25 (C) (2) )
2 . .A shower head over a bathtub does not increase the fixture
unit value.
3 . See paragraph (2) of this subsection for method of
computing equivalent fixture unit values for devices or equipment
which discharge continuous or semi-continuous flows into sanitary
drainage system.
Fixtures not listed above:
Trap 5ize 1-1/4 inch or less 1.
Trap Size 1-1/2 inch 2
Trap Size 2 inches 3
Trap Size 2-1/2 inches 4
Trap 5ize 3 inches 5
Trap Size 4 inches 6
4 . Values for Continuous Flow. Drainage fixture unit values
for continuous or semi-continuous flow into a sanitary drainage system,
such as from a pump, sump ejector, air conditioning equipment, or
similar device shall be computed on the basis of the conversion
contained in Table 13, CONVERSION FACTOR5 FOR CONVERTING CONTINUOUS
FLC?T�T TO �4'UIVALS'1rTT �'AI�TITARY LQ�tLD.
___ __ __ _ ___ ___ __ ___ . _ _
TA�LE 13
CDI�VL�S1�N FACTORS FOP COI�'VERTdNG CONTIIVUOCJS
� FLO�'4'�'0 EQUIVALENT SAN�TARY LOAD
�� Sanitary ]ca�l� Conversion factor2 �
d.t�.u. d.f.u./gpm
' 10 1.2
', <p 1.7 �
30 2.2 i
40 2.7
50 3.2
100 4.4 '
150 SA I
200 5.5
300 63
400 6.7
500 7.0
1000 8.1
2000 9.I
300Q 9.7
4000 or more 10.0
� 1 2'his refers to the conneeted sa�itary load, iy� drainage fixture
' units, on the soil or waste line for which the size is to be deter-
mined.
2 The equivalent load, in drainage fixture units, to be added for
sizing purposes because of continuous flow super-imposed on a
sanitart� drain is obtained bv multipl��ing the continuous flow,
in �?allons per minute, b,y the co���ersi�n factor correspandin�; to ;
the sani�ary lc�ad. ��
104 .
(Sec. 21-25 (D) (1) )
D. Determining Size of Drainage System.
l. Selecting Size of Drainage Piping. Pipe sizes shall be
determined from Tables 14, 15 and 16 below and on the basis of the
drainage load computed on the number of fixture units .
___.____.___..
__.
--_ _. __
TA13!E 14
� 1�9AXEl\hUM LO�'�I3 FC)R I,OR�"LrJN`d'��I��ZA�NS
, Diail�efer Horizontal Bu�lding Drain or Buildiil� Sewer
�� uf Fi�ture � Slope �
Is�ain Brui�ch 1�16 in;ft 1�8 u�/ft l�4 in�ft 12� in/ft �
�I
(in.) (d.f.«.) (d.£u.) (d.f.u.) (c�.f.u.) d.f.Lt.)
1-1/4 1
1-1�2 �
� � �� 26
� ,� ��,, 1� �4 3 l
, 3 32� 4?* 50�:
' 4 160 216 250
� 360 390 480 575
( 620 700 840 1000
b 1400 1400 1600 1920 2300
' �p' 2500 2500 2900 350C� 4200
� ��? 3900 3900 4600 5600 6701? �
, 15 7000 7000 8300 10000 12000
�'� *�0'I'E: Not more than one tank operated water cl�set, ��owever,
�' in a single f:.im.ily dwellii�g two (2) tailk �perated water
� closets muy b� insYall�d. (N� fldbsl�ometee water �loset.)
_ _
_._.____.._._____
— _ . __ _ - �
TABLE 15
MAXIMUM LO�S FOPZ SQ��.,AND W�,��'�5'�A��S
�-IAVING NOT MORE THAN'£HREE BRANCH INTEP�VALS
Maximuin i,oad �
Diameter of Stack O�x Any One On Stack
(inches) Branch Inteival
(d.f.u.) (d.f.u.)
1-1/4 1 2
1-1/2 2 4
2 4 9
��� �_1/2 g 18
� 20`k 4R�
4 100 240
5 2�5 540
6 385 930
g g�s 2100
* NO'�E: Not more than dne tank ogerated water cluset, liow-
ever, in a single farnilv dwelling two (2) tank operated
� water closets rr�w,y be ins�ul�ed• (N� flushorn�ter valve
� water closet). � ;
105 .
(Sec. 21-25 (D) (1) )
�'��i.r: ��,
���tMVM Lonz�s ��oaz soia��niD w.asT�:s�rncKs t�nvlNc Fc�uR
n�z�o�z�. BzznNcri �tv7��Rvnl.s
N�unber oi�Branch Inl�eivals
q 5 (i � 7 fi 9
Diatneter
oC st.ick on any on any on any on any on any ��
one on onc on one on one on one on one ���
interval stacl: inteival stack interval stack interval stack interval stack inte�val �,
in. d.f.u. cl.f.u. d.f.n. d.f.u. d.f.u. d.f.u. d.f.u. d.f.u. d.f.u. d.f.u. d.f_u. '
2 3 13 3 16 31> 18�
2-I/2 7 27 6 32 61i 3�`
3a 1Ra 7�a ]7`' 85" 1G" 9('� ISab 102ac
� 4 90 360 � R4 4?0 <�0 - 430 7C,�' ;:�0`_
�� 5 205 F�20 190 950 180 ].04� 17` l,']5 170 1,360 155�,
` 6 350 ],400 :��5 I,C25 310 1.8(i0 ?�)9 2,090 ?90 � 2,320 ?85
� 8 7R5 3,140 7?5 ;,675 700 4,`'00 (i7S 4,7"?5 6S� 5,?4f) 640
��� 10 1.405 S,G.'_t� I.�10 6.,,0 l.''00 7Sp0 1.:�0� !�,4";5 1,170 9,360 1,145
1;_> 2,195 ,-8,7RO �?,(�4i l0,_''S 1,JSQ 11,7L1U l,?�S(1 1�.I(�0 1,232` 14,600 1,790
15 3,935 . 15,741) 3,r;%" !�},,�` 3,SJ0 ''i,C�O0 3,;?5 �;,,�;''� >,3SQ �'6.�4f� 3,210_
Number of��ranch 9ntervals
Diameter �0 1 1 I 2 13 ]� ;
of stack on any o❑ any on :�iny �>n .iny on ,�ny �
on one on one on one on onc c�n one on �
st�ick interval stac;k inteival stack in(eiv�il stack interval stack interval stack �
in. d.i.u. d.f.u. d.f.u. d.f.u. d.f.ii. d.Cu. d.l.ii. d.f.ii. d.f.u. d.].u. d.f.u. �
�
� ��2 �
' �1
4 '
5 1,400`'
��� 6 2,560 280 ?,g00 265�' 2, 2,900°
� 8 � 5,780 630 6,300 620 6,830 610 7,350 SR51i 7,600`
��� ]0 l 0,310 l,l 25 1 1,250 1,1 l0 12,2.00 ,l,095 13,100 1,080 14,070 1,070v 15,000°
'� 1? 16,090 l,755 17,550 1,730 19,020 ],705 20,500 1,690 219C0 1,670 23,410 �
�� l5 28,880 3,150 31.500 3,100 34,160 3,000 3C,700 3,050 39.390 �,000 42,015 �
allot more than one tanl:operated water closet,however,in a single fami1y dwelling two(�) tank operated water closets may be
installed(No flusliometer valve water closet).
�� t'Loads on any one brancl� interval for lugher stacks sl�all �iot excced tliese valties;l�owever,this shall not preclude t}ie installation
�: of Itigher stacks.
� `Stack loads for i�igher siacks sli�ll not exceed these values;howEver, tliis shall not pceclude the install.�tioii of higher stacks. �
2. Minimum 5ize of Soi1 and Waste 5tacks. No soil or waste
stack shall be smaller than the largest horizontal branch connected
thereto except that a 4 x 3 W.C. connection shall not be considered
as a reduction in pipe size.
3. Minimum Size of Stack Vent or Vent Stack. Any structure
in which a building drain is installed shall have at least one stack
vent or vent stack not less than 3-inches in diameter, or the size of
the building drain if the building drain is less than 3-inches in
diameter, carried full size through the roof.
106 .
� �
(Sec. 21-25 (D) (4) )
4. Provisions for Future Fixtures . When provision is made
for the future installation of fixtures, those provided for shall
be considered in determining the required sizes of drain and vent
pipes . Construction to provide for such future installations shall
be determined with a plugged fitting or fittings .
5. Minimum Size of Underground Drainage Piping. No portion
of the drainage system installed underground or below a basement or
cellar shall be less than 2-inches in diameter.
6 . Offsets in Waste Stacks Serving Kitchen 5inks. In a one
or two family dwelling only, in which the stack receives the discharge
of a kitchen-type sink and also serves as a vent for fixtures connected
to the horizontal portion of the branch served by the waste stack, the
minimum size of the waste stack up to the highest sink branch connection
shall not be less than 1-1/2 inches in diameter. Above that point, the
size of the stack shall be governed by the total number of fixture
units vented by the stack.
E. 5izing of Offsets on Drainage Piping.
1. Offsets on 45 degrees or Less. An offset in a vertical
stack, with a change of direction of 45 degrees or less from the
vertical, may be sized as a straight vertical stack . In case a
horizontal branch connects to the stack within two feet above or
below the offset, a relief vent sha11 be installed in accordance
with this section.
2. Offsets Above the Highest Branch. An offset above the
highest horizontal branch is an offset in the stack-vent and shall
be considered only as it affects the devel.oped length of the vent.
3. Offsets Below the Lowest Branch. In the case of an offset
in a soil or waste stack below the lowest horizontal branch, there
shall be no change in diameter required if the offset is made at an
angle of not greater than 45 degrees . If such an offset is made at
an angle greater than 45 degrees to the vertical, the required
diameter of the offset and the stack below it shall be determined as
for a building drain (Table 14) .
4. Offsets of More than 45 Degrees. A stack with an offset
of more than 45 degrees from the vertical shall be sized as follows:
107.
�"„'� �."�
(Sec. 21-25 (E) (4) (a) )
(a) The portion of the stack above the offset shall be
sized as for a regular stack based on the total number of fixture
units above the offset.
(b) The offset shall be sized as for a building drain,
Table 14, Maximum Loads for Horizontal Drains . The portion of the
stack below the offset shall be sized as £or the offset or based on
the total number of fixture units on the entire stack, whichever
is the larger.
(c) A relief vent for the offset shall be installed as
provided elsewhere and in no case shall a horizontal branch connect
to the stack within two feet above or below the offset.
F . Building Sumps.
l. Drainage Systems Below Sewer Level .
(a) All building drains which cannot be discharged to
the sewer by gravity flow shall be discharged into a tightly covered
and properly vented sump, so located as to receive the sewage by
gravity flow, from which sump the liq�zid sha11 be lifted and discharged
into the building soil system by automatic pumps, ejectors, or any
equally efficient method. The capacity of the sump shall be such
that the maximum storage period under any conditions shall be not
greater than twelve (12) hours. If a sufficient number of automatically
flushed fixtures are not installed to accomplish this change in
contents of the sump, a special automatic fl.ushing device accomplishing
this change in contents shall be provided. 5aid sump shall be so
designed and equipped that the entire contents thereof wi11 be discharged
during the emptying operation. Minimum sump sizes shall be established
by the Inspector for any particular installation.
(b) In every case an approved check valve shall be placed in
the discharge line or lines from the sump to the soil system, and
the connection from the discharge line to the soil system shall be by
means of a "wye" , with the "wye" branch on top.
(c) All soil or waste pipes leading to a sump shal.l be
vented the same as though direCt connection with the sewer had been
established.
10 8.
�"� �I"�
(Sec. 21-25 (F) (1) (d)
(d) Al1 building sumps shall have gas tight metal covers
except that float control or switch rods shall operate without binding.
Such covers shall be designed and constructed with sufficient
strength to bear normal traffic and use without hazard or damage.
Subsoil drains below sewer level shall discharge into a sump separate
from the sanitary system and need not be vented.
2. 5umps in Buildings Other Than Single and Two-Family
Dwellings. In all buildings other than single and two-family
dwellings, should one (1) or more water closets discharge into the
sump, duplicate pumping equipment shall be installed. The building
sump in all such buildings shall be individually vented by means
of a vent sized in accordance with the number of fixture units
discharging into the sump, the sump vent stack shall be a minimum
of two (2) inches in diameter.
3. Buildina, Sumps in Singl.e and Two-Family Dwellings.
(a) If a basement or cellar water closet discharges into
the building sump of a single or two-family dwelling, the sump
shall be individually vented by means of a three (3) inch vent.
(b) If no water closet is connected to the building sump,
the sump shall be vented either by means of a three (3) inch underground
fixture waste, terminating in a stack, or separate three (3) inch
underground vent Changed to a one and one-half (1-1/2) inch stack at
floor level and increased to three (3) inch at the roof, or a two (2)
inch vent shall be led outside the structure to terminate not less
than one (1) foot above grade and not less than three (3) feet from
any door, window or air duct . The vent shall not terminate in any
unventilated space under a porch or terrace, nor in any inaccessible
place. The vent terminal shall be equipped with a vent cap.
4. Building Sumps Installed Optionally with Backwater
Protective Devices . It shall be permissible to support the building
drain from the ceiling of the basement or cellar to permit fixtures
above the building sewer level to discharge to the building sewer by
gravity flow; the storm drain carrying drainage from the roof and
other similar areas may be installed and connected to the building
sewer or storm sewer outside the basement walls or as otherwise
required by the Inspector with this type of installation. All
basement or cellar plumbing fixtures, floor drains, and sub-soil
109 .
� �r.""1�
E
(Sec. 21-25 (F) (4) )
drains shall be installed so as to discharge into a building sump.
Sec. 21-26. Vents and Venting.
A. Materi als .
1. Above Ground. Vent piping installed above ground shall be
of brass or copper, copper tube, cast iron, ferrous alloys , galvanized
steel, galvanized wrought iron or lead, except that in the case of
four family dwelling units or less , plastic pipe is acceptable as
designated in this Code.
2. Underground. Underground vent piping shall be of cast
iron soil pipe except that the Supervisor ma.y approve the use of
other materials when found adequate and installed as directed by the
Supervisor. Where threaded joints are used underground they shall
be coated and wrapped after installation and tests.
3. ChemiCal Waste Systems. Vent piping on chemical waste
systems shall conform to that required for chemical waste pipe,
except as may be otherwise authorized by the Inspector.
4 . Fittings. The materials of which venting system pipe
fittings are made shall conform to the type of piping material used
in the venting system.
B. Protection of Trap Seals . The protection of trap seals from
siphonage, aspiration, or back-pressure shall be accomplished by
the appropriate use of soil or waste stacks with adequate venting in
accordance with the requirements of this Code. Venting systems shall
be designed and installed so that at no time shall trap seals be
subjected to a pneumatic pressure differential of more than one inch
of water pressure under design load conditions . If a trap seal is
subject to loss by evaporation, means shall be provided to prevent
the escape of sewer gas .
C. Vent Stacks and Stack Vents .
l. Vent Stacks Required. Every building in which plumbing
is installed shall have at least one main stack, which shall run
undiminished in size and as directly as possible, from the building
drain through to the open air above the roof. A vent stack or a
main vent shall be installed with a soil or waste stack whenever
110 .
� 1 �'"��
(Sec. 21-26 (C) (1) )
back vents, relief vents, or other branch vents are required in a
building of two or more branch intervals . All other vent pipes shall
extend above the roof or shall be reconnected with the stack vent or
vent stack 6 inches above the overflow l.evel of the highest fixture
connection discharge into the soil or waste stack.
2. Connections at Base and Top. Al1 main vents or vent
stacks shall connect full size at their base to the drainage system
or to the main soil or waste pipe, at or below the lowest fixture
branch.
3. Offsets in Building Having Ten or More Branch Intervals .
Offsets in buildings having ten or more branch intervals of less than
45 degrees from the horizontal in a soil or waste stack may be vented
as two separate soil or waste stacks and may be vented by installing
a relief vent as a vertical continuation of the lower section of the
stack or as a side vent connection to the lower section between the
offset and the next lower fixture or horizontal branch. The upper
section of the offset shall be provided with a yoke vent. The
diameter of the vents sha11 not be less than the diameter of the main
vent, or of the soil and waste stack, whichever is the smaller.
4. Vent Headers. Stack vents and vent stacks may be connected
into a common vent header at the top of the stacks and then extended
to the open air at one point. This header shall be sized in accordance
with the requirements of Table 16, the number of units on a section
of the header being the sum of all units on all stacks served by the
section and the developed length being the longest vent length from
the intersection at the base of the most distant stack to the vent
terminal in the open air as a direct extension of one stack.
5. Other Use Prohibited. The plumbing vent system shall not
be used for purposes other than the venting of the plumbing system.
D. Vent Terminals .
1. Extension Above Roofs . Extension of vent pipes through a
roof shall be terminated at least 12 inches above it. Where a roof
is to be used for any purpose other than weather protection, the vent
extensions shall run at least 7 feet above the roof.
2. Waterproof Flashings . Each vent terminal shall be made
watertight with the roof by proper flashings .
111.
� �
(Sec. 21-26 (D) (3) )
3. Flag Poling Prohibited. Vent terminals shall not be used
for the purpose of flag poling, TV aerials, or similar purposes .
4. Location of Vent Terminal. No vent terminal shall be
located directl.y beneath any door, window, or other ventilating
opening of the building or of an adjacent building nor shall any
such vent terminal be within 10 feet horizontally of such an opening
unless it is at least 2 £eet above the top of such opening.
5. Extensions Through Wall . Vent terminals extending through
a wall, when approved by the Inspector shall. be at least 10 feet
horizontally from any lot line and terminate downward. They shall
be effectively screened and shall meet the requirements of this Code.
Vent terminals shall not terminate under the overhang of a building.
6 . Extensions Outside Building. No soil, waste, or vent pipe
extension shall be run or placed on the outside of a wall of any
new building, but shall be carried up inside the building.
E. Frost Closure. Where frost closure is likely to occur, each
vent extension through a roof shall be at least 2 inches in diameter.
When it is found necessary to increase the size of the vent extension
to meet this requirement, the change in diameter shal.l be made
inside the building at least one foot below the roof.
F . Vent Grades and Connections .
l. Vent Grade. All vent and branch vent pipes shall be so
graded and connected as to drain back to the soil or waste pipe by
gravity.
2 . Vertical Rise. Where vent pipes connect to a horizontal
soil or waste pipe, the vent shall be taken off above the center line
of the pipe. The vent pipe shall rise vertically, or at an angle
not more than 45 degrees from the vertical, to a point at least
6 inches, above the food-level rim of the fixture it is venting, before
offsetting horizontally or before connecting to the k�ranch vent.
3 . Height .Above Fixtures . .A connection between a vent pipe
and a vent stack or stack vent shall be at least 6 inches above the
flood-level rim of the highest fixture served by the vent. Horizontal
vent pipes forming branch vents or relief vents, shall be at least
6 inches above the flood-level rim of the highest fixture served.
112.
(Sec. 21-26 (G) )
G. Fixtures Back-toBack. Two fixtures set back-to-back, within
the distance allowed between a trap and its vent, may be served
with one continuous soil or waste-vent pipe, provided that each
fixture wastes separately into an approved dnuble fitting having
inlet openings at the same level.
H. Fixture Vents .
l. Distance of Trap From Vent. Each fixture trap shall have
a protecting ven.t so located that the developed length of the fixture
drain from the trap weir to the vent fitting is within the requirements
set forth in Table 17, MAXIMUM DISTANCE OF FIXTURE TRAP FRQM VENT.
� TABLE 17 �
MAXIMUI�1 DISTANCE OF FIXTURE TRAP FROM VENT
Size of'Fixtz�re Drain Irzches Distance—Trap to Vent
1-1/4 3 ft. ,
�_��� 3 ft.6 in.
� 5 ft. '
3 6 ft. '
4 10 ft. '
2 . Venting of Fixture Drains. Any tixture drain, except
those serving a fixture with integral traps such as water closets,
shall be vented if it discharges , to a tee, tee-wye, or short-pattern
wye in any stack or horizontal drain below the top of the dip of the
fixture trap served by the fixture drain.
3. Crown Venting Limitation. No vent shall be installed
within two pipe diameters of the trap weir.
I. Common Vents.
l. Individual Vent as Common Vent. An individual vent,
installed vertically, may be used as a common vent for two fixture
traps when both fixture drains Connect with a vertical drain at the
same level.
2. Fixtures Connected to Stack at Different Levels . A common
vent may be used for two fixtures set on the same floor level but
connecting at different levels in the stack, provided the vertical
drain is one pipe diameter larger than the upper fixture drain but in
113.
� �
(Sec. 21-26 (I) (2) )
no case smaller than the lower fixture drain, whichever is the larger,
and that both drains conform to this Section.
J. Wet Venting.
l. Singl.e Bathroom Groups. A single bathroom group of fixtures
may be installed with the drain from a back-vented lavatory, kitchen
sink, or combination fixture serving as a wet vent for a bathtub or
shower stall and for a water closet, provided that:
(a) Not more than four fixture units drain into a 2 inch
diameter wet vent.
(b) The horizontal branch drain connects to the stack at
the same level as the water-closet drain or below the water-closet
drain when installed on the top floor.
2 . Double Bathroom Groups - Back-to-Back. Bathroom groups
back-to-back on top floor consisting of two lavatories and two bathtubs
or shower stalls may be installed on the same horizontal branch with
a cammon vent for the lavatories and with no back vent for the
bathtubs or shower stalls and for the water closets , provided the wet
vent is not less than 2 inches in diameter.
3. Multi-story Bathroom Groups. On the lower floors of a
multi-story building, the waste pipe from one or two lavatories may
be used as a wet vent for one or two bathtubs or showers provided that:
(a) The wet vent and its extension to the vent stack is not
less than 1-1/2 inches in diameter.
(b) Each water closet below the top floor is individually
back vented.
(c) The vent stack shall be sized in accordance with
Table 18, 5IZE AND LENGTH OF 5UMP VENT5 .
K. 5tack Venting. One Bathroom Group. Except as indicated
in this 5ection, a group of fixtures, consisting of one bathroom
group and a kitchen sink or combination fixture, may be installed
without individual fixture vents , in a one-story building or on the
top floor of a building, provided each fixture drain connects
independently to the stack and the water closet and bathtub or shower
114 .
� �
(Sec. 21-26 (K) )
stall drain enter the stack at the same level and in accordance
with the requirements in Table 17, MAXIMUM DISTANCE OF FIXTURE TRAP
FROM VENT.
L. Individual Fixture Reventing.
l. Where Required. When fixtures other than water closets
discharge into a horizontal branch downstream from a water closet,
each fixture connecting downstream shall be individually vented.
2. Load Limit for Fixtures Above. Bathtubs and Water Closets
Without Reventing. The total drainage load that may be placed on a
soil or waste stack above the highest water closet or bathtub connection
without the use of revents shall not exceed three fixture units ,
provided:
(a) The soil or waste stack is not less than 3 inches in
diameter.
(b) The total load on the stack is in accordance with the
applicable provisions of Section 21-25; and
(c) The waste piping of the fixtures above the water
closet or bathtub connection is in accordance with this Code.
3 . Fixtures Back-to-Back in Battery. GJhen fixtures are
connected to one horizontal branch through a double wye or a sanitary
tee in a vertical position, a common vent for each two fixtures
back-to-back or double connection shall be provided. The common vent
shall be installed in a vertical position as a continuation of the
double connection.
M. Venting of Sumps. Drainage piping below sewer level shall be
vented in similar manner to that for a gravity system. Building sump
vents shall be sized in accordance with Table 18, 5IZES AND LENGTH
OF SUMP VENTS . Vents from pneumatic ejectors ar similar equipment
shall be terminated separately to the open air.
115 .
(Sec. 21-26 (M) )
TABLE 18
SIZE AND LENGTH OF SUMP VENTS?
Discharge
�� Cap�city of Diameter of Vent(inches)
Sump Pump 1-1/4 1-1/2 2 2-1�2 3 4
(gpm) (maximum�length of vent, in feet,given below)
10 N•L�1 N.L. N.L. N.L: N.L. N.L.
� 20 "'70 N.L. N.L. N.L. N.L. N.L.
40 72 l60 N.L. N.L. N.L. N.L.
; 60 31 75 270 N.L. N.L. N.L.
' 80 16 41 150 380 N.L. N.L.
j 100 102 25 97 250 N.L. N.L.
150 TO 44 11Q'' 370 N.L.
' 200 20 60 2l0 N.L. .
250 10 36 130 N.L.
� 300 10 22 88 380
4Q0 T0 44 210
� 500 10 24 130
�
' 1No lunit,actual values greater tltan 500 feet.
ZLess than l�feet.
N. Relief Vents. Stacics of More than Ten Branch Intervals. Soil
and waste stacks in buildings having more than ten bran.ch intervals
shall be provided with a relief vent at each tenth interval installed,
beginning with the top floor. The size of the relief vent shall be
equal to the size of the vent stack to which it connects . The lower
end of each relief vPnt shall connect to the soil or waste stacic
through a wye below the horizontal branch serving the floor and the
upper end shall connect to the vent stack thraugh a wye and not less
than 3 feet above the floor level.
In a soil or waste stack, which serves fixtures on two ar
more floors and receives wastes from fixtures wherein sudsy detergents
are used, a zone shall be considered ta exist in the vertical portion
within 40 stack diameters of the base fitting: and in the horizontal
drain at the base of a soil or waste stack, which serves fixtures on
two or more floors and receives wastes from fixtures wherein sudsy
detergents are used, a zone shall be considered to exist in the,
horizontal portion within 10 stack diameters of the base fitting and
where a 160 or 90-degree fitting is installed in the horizontal drain,
a zone shall be considered to exist in the horizontal portion within
40 drain diameters upstream of, and l� drain diameters downstream of,
the fittings; and in a soil or waste stack offset of 60 or 90-degrees ,
which serves fixtures on two or more tloors and receives wastes from
116 .
(Bec. 21-26 (N) )
fixtures wherein sudsy detergents are used, a zone shall be
considered to exist in the vertical portion of the stack within
40 stack diameters of the base fittings for the upper section of the
stack, and zones shall be considered to exist in the horizontal offset
within 10 stack diameters of such base fitting and within 40 stack
diameters of the top fitting for the lower section of the stack; and
in a vent stack, which has its base connected to a suds pressure zone
in the sanitary drainage system, a zone shall be considered to exist
in the portion of the vent stack extending from its base connection
up to the lowest branch vent fitting located above the level of the
suds pressure zone in the sanitary drainage system.
0. Selecting Size of Vent Piping.
1. General. Vent pipe sizes shall be determined from Table 19
on the basis of length and drainage load computed from Table 19 of
this section.
2. Individual Vents . The diameter of an. individual vent shall
be at least one-half the diameter of the drain served, except that no
vent pipe shall be less than 1-1/4 inches in diameter.
3. Relief Vents . The diamete� of a relief vent shall be at
least 1/2 the diameter of the soil or waste branch served.
TABLE 19
lUIt1+1�MUM DIAMLTF?RS AND?�1Akl1�1UM LENGTHS UI-'VENT STACK�AND STACK VENTS1
piameter uf Total
� Soil ar Waste T'ixture Units T)IAME'1'ER 01'VEN'l(INC}{��) �
Stacl� Corinected�Co � �
Stack � 1-I/4 I-I/2 '' 2-I/2 3 � 5 6 R 1Q 12
� ��n.� (dfu) (Maximunt developed length of vent, in Peet, given below) � '
1_l/4 ? ;0
l-1/2 � 8 a0 I50 � � � �
J,1/2 10 3U 100
? �� � ]2 30 75 200 �
� �p ?6 50 150 � �
� 2-1�� � 42 30 lOQ 300 i
� � 4� 150 3(0 1040 �
3 � 21 3'? 110 � 270 �1Q
3 5� �� 9� 230 G£30
� 3 ]02 ?5 86 210 62U
4 43 35 85 ?50 �1�;0
� q. � 14Q 37 65 �00 750
q 320 23 55 170 640
�} 53Q �1 50 150 5$0
�' � 5 190 28 82 320 990
` 4�0 21 63 250 760
�
� 5 � 940 18 � 53 210 640
� 5 1,400 ]6 49 190 590
� 6 � SQII .�3 130 ��00 I.000
� _ _ _..__._ _--_ ____ _ . _ _
i�..7.
(Sec. 21-26 (�) (3) )
TABLE 19
MINIMUMDIAM$T�RS AND MAXIMUM LENGTHS OF VENT STACKS AND STACK VENTS�—Continued
RlameteX of Total
Soil or Waste Fixture Units DIAMETER OF V�NT(INCHES)
Stack Connected to
Stack ' 1-1/4 l-1/2 2 2-1/2 3 4 5 6 8 lQ 12
(In.) (dfu) � (Maximum developed length c�f vent, in feet,given bel��wj �
b 1,1Q0 26 100 310 780
6 � 2,OQ0 2? f�4 260 660
b 2,9Q0 20 77 240 60Q
8 1,800 31 95 240 940
£3 3,400 24 73 ]90 720
S 5,600 20 62 160 610
S 7,6p0 18 Se 140 560
10 4,000 ;l 78 31Q 960
lU 7,200 ' 24 60 240 740
1� 11,000 20 51 20U 630
10 15,000 18 46 180 570
12 7,30Q 31 120 380 940
�2 l��,Q00 24 q4 300 720
12 20,000 20 79 2SQ 61Q
12 26,OQQ 18 72 230 560
*lAaes not apply to circyit, l�op or sump vents.
___
____._ __ .._..___ . _._.__
_._._ ._.._ __ _ ___
TABLE �'0
MINIMUM DIAMETLRS ANU MAXIMUM LGNG`C1iS OF CONTINUOUS, VENT5
FOR 1-IOR17_ONTA[_,SOIL AND WAST� 13KANCI IES
Uiamiter o1'venl (inct�es)
Diamei�er of �Slope of 1-1/4 1-1/2 ? ?-1�2 3 4 5 6 8 10
l��orizontal horizontal branch �
bra�ch(in.) (inches per f��ot) (M.ixiinum developed lengtl�of vent,in feet,given beluw) �
l-1/4 I/8 N.L.�
l/4 N.L.
1/2 N.L.
1-1/2 1/$ N.L. N.L.
1/4 N:L. N.L.
1/2 N.L. N.L.
2 1/8 N.L. N.L. N.l.,.
, 1/4 290 N.L. N.L.
1/2 I50 380 N.L.
�� �?_���2 �1�8 � 180 450 N.L. N.I_.
� �/4 � 9( 340 N.L. N.L. �
��'? 4�) I 30 N.L. N.L.
� ��g 1�C) N.L. N.L. N.L.
��4 97 42Q N.L. N.L.
��� 50 '_''0 N.L. N.L.
4 ��g 190 N.L. N.l.. N.L.
��4 9t� 31Q N.L. N.L.
j �r� �}R 160 410 N.L.
,' S ��H 190 4�1U N.L. N.L._. _
' 1/4 97 'St) N.L. N.L.
�� � ��Z 4[i� 130 N.L. N.L.
' G 1/8 1�>0 N.L. N.1_:. N.L.
� ��4 96 � 4�10 N.L. N.L.
I ��� �4 ??0 N.L. N.L.
' g l�g 190 N.L. N.L. N.L.
��4 , 91 310 N.L. N.L.
� � ��� 3� I50 410. N.L.
;
I
i �The abbreviation "f�I.L."means "I�'u Liji�it".Actual values iri excess of 500 tect.
l�s.
� �
5ec. 21.-27. Storm Drains .
A. General.
1. [�There Required. All roofs, paved areas , yards , courts
and court-yards shall be drained into a separate storm-sewer system,
or a combined sewer system where such systems are available, or to
a place of disposal satisfactory to the City Engineer.
2. Storm Water Drainage to Sewer Prohibited. Storm water
shall not be drained into sewers intended for sanitary sewage only.
3. Sanitary and Storm Secaers . Where separate systems of
sanitary drainage and storm water are installed in the same property,
the storm and sanitary building sewers and drains may be laid side
by side in the same trench.
4. Expansion Joints Required. Expansion joints or sleeves
shall be provided where warranted by temperature variations or
physical conditions.
5. Subsoil Drains . When the subsoil drain for a building is
subject to back-water, it shall be protected by an accessible
located backwater valve. 5ubsoil drains may discharge into a
properly trapped area drain or sump. Such sumps do not require vents .
6. Building Subdrains . Building subdrains located below the
public sewer level shall discharge into a sump or receiving tank the
contents of which shall be automatically lifted and discharged into
the drainage system as required for building sumps .
B. Materials .
l. Interior Leaders (Conductors) . Interior leaders installed
above ground level shall be of brass or copper pipe, copper tube,
cast iron, lead, galvanized open-hearth iron, galvanized steel,
alloy or wrought iron.
2 . Exterior Leaders (Conductors) . Exterior leaders sha].l be
of approved sheet metal or other acceptable material except that on
buildings not exceeding 3 stories in height approved wood leaders
may be installed. When exterior leaders are connected with a building
starm drain or storm sewer, they shall be connected to a cast iron
drain extending above the finished grade.
119 .
� �
(Sec. 21-27 (B) (3) )
3 . Underground Building Storm Drains . Building storm drains
underground, inside the building, when connected into a sanitary
building drain or combined sewer, shall be of cast iron soil pipe.
Building storm drains underground, inside the building,
when not connected with a sanitary or combined sewer shall be of cast
iron soil pipe, ferrous alloy piping, galvanized steel , galvanized
wrought iron, lead, copper pipe or tube, concrete pipe; and asbestos
cement pipe or clay PVC type joint may be used if approved by the
Inspector.
4. Building 5torm Sewer. The building storm sewer shall be
of cast iron soil pipe, vitrified clay pipe, concrete pipe, #40
plastic pipe, fibre glass (epoxy resin pipe) or asbestos cement pipe
if approved by the Inspector.
5. 5ubsoil Drains . 5ubsoil drains shall be of open jointed
or horizontally split or perforated clay tile, perforated asbestos
cement, or plastic pipe, or open jointed cast iron soil pipe, or
porous wall concrete pipe. Subsoi.l drains shall be not less than
4 inches in diameter.
C. Traps on Storm Drains and Leaders .
1. Where Required. Storm drains when connected to a combined
sewer shall be trapped.
2. Where Not Required. No traps shall be required for
storm-water drains which are connected to a sewer carrying storm
water exclusively.
3. Trap Size. Traps for individual conductors shall be the
same size as the horizontal drain to which they are connected.
4. Method of Installation. A single trap shall be installed
in the storm drain before its connection with the combined building
sewer or public sewer. Such trap sha11 be provided with an accessible
clean-out.
D. Leaders (Conductors) and Connections .
1. Not to Be Used Improperly. Leaders shall not be used as
soil, waste, or vent pipes nor shall soil, waste, or vent pipes be
used as leaders .
120 .
(Sec. 21-27 (D) (2) )
2 . Protection of Rain Water Leaders. Rain water leaders
installed along alley ways , driveways, or other locations where they
may be exposed to damage shall be protected by metal guards , recessed
into the wall, or constructed from ferrous alloy pipe.
3 . Combining Storm with Sanitary Drainage. The sanitary and
storm drainage system of a buil�ing shall be entirely separate , except
that where a combined building drain is used, the storm drain shall
be connected in the same horizontal plane through a Y fitting to the
combined building drain at least 10 f eet f rom any soil stack .
E . Roof Drains .
1. Material. Roof drains shall be of Cast iron, copper,
lead, or other corrosion-resisting material.
2 . Strainers for General Use. All roof areas , except those
draining to hanging gutters, shall be equipped with roof drains
having strainers extending not less than 4 inches above the surface
of the roof immediately adjacent to the roof drain. Strainers shall
have an available inlet area, above roof level, of not less than
1-1/2 times the area of the conductor or leader to whieh the drain
is connected.
3. Strainers for Flat Decks . Roof drain strainers for use on
sun decks , parking decks , and similar area, normally serviced and
maintained, may be of the flat surface type, level with the deck
and shall have an available inlet area not less than 2 times the
area of the conductor or leader to which the drain is connected.
F. Size of Leaders and Storm Drains .
l. Vertical Conductors and Leaders . Vertical conductors and
leaders shall be sized on the maximum projected roof area, according
to Tabl� 2(�, 5iZE ��' VERTICAL CONDUCTOR.S .AiVD LEADERS .
_ TABLE �C — A
S1ZE OF Vf RTICAL COI�IDC�CT�RS AND LEADERS
Diameter of Max�i�mum projected Diameter of Marimum Yrojected �
Leader or roof are� leader or � roof area
� conductor �(squ�re feet) conductor ('square Fcet)
(inches} (incl�ies) � � �
2 750 5 8650
, 2-1/? - 1;00 6 13500
' 3 �20U 8 29QOD
4 4600
121.
(Sec. 21-27 (G) )
G. Size of Horizontal Storm Drains . The size of the building
storm drains or building storm sewer or any of their horizontal
branches having a slope of 1/2 inch or less per foot, shall be based
upon the maximum projected roof or paved area to be handled
according to the following, Table 21, SIZE OF HORIZONTAL BUILDING
STORM DRAINS .
TABLE 21
SIZE OF HORIZQNTAL STORNI DRAINS(1)
Diameter .
of Drain 1�8 in. 1�4 in. I��2 in. �
Inches Slope Slope Slope
Sq. Ft. gpm Sq.Ft. �pm Sq.Ft. gpm
3 8�2 34 ]160 48 1644 68
4 i8b0 7� 2�,50 il0 3760 156
� 3340 !39 47?0 19b 6680 ?7�i
(i 535(? ''?2 ?SSp ;14 10700 445 ��
8 1�l;Op ��78 16300 677 23U00 956 �
lU ?0700 860 2920U 12I4 41400 17Z�t �
12 33300 13ti4 -1?OO�J 1953 66h00 276b '
IS Sy500 2473 R400O �491. 119000 4946 ��
l. Table 21 is based upon a maximum rate of rainfall of
4 inches per hour for a 5 minute duration and a 10-year return period.
Where maximum rates are more or less than 4 inches per hour, the
figure for drainage area shall be adjusted by multiplying by 4 and
dividing by the local rate in inches per hour.
H. Size of Combined Drains and Sewer. To compute the size of a
combined drain and sewer, the method described in the r�ISD specifications
shall be used. The fixture units shall be converted into an equivalent
projected roof or paved area. When the total fixture load on
the combined drain is less than 256 fixture units, the equivalent
drainage area in horizontal projection shall be taken as 1.000 square
feet. When the total fixture load exceed 256 units, each additional
fixture unit sha11 be considered the equivalent of 3.9 square feet
of drainage area.
I . Values for Continuous Flo�a. Where there is a continuous
or semicontinuous discharge into the building storm drain or building
storm sewer, as from a pump, ejector, air-conditioning plant, or
similar device, each gallon per minute of such discharge shall be
computed as being equivalent to 24 square feet of roof area,
based upon a 4 inch rainf all.
122.
� �
Sec. 21-28. Medical Care Facility Plumbing Equi ment .
A. General. Flush rim clinic sinks , bedpan washers , or other
approved fixtures and equipment shall be provided for the disposing
of bedpan contents and the cleansing and disinfection of bedpans in
soiled utility rooms .
B. Prohibited Use of Clinic 5inks and Service Sinks. A clinic
sink in a soiled utility room shall not be used as a substitute for,
nor shall it be used as a janitor' s service sink. A janitor' s
service sink shall not be used for the disposal of urine, fecal
matter, or other human wastes .
C. Location of Ice Making P�iachines . No machine for manufacturing
ice nor any device for the handling or storage of ice shall. be
installed in a soiled utility room. Machines for manufacturing ice
and devices for handling or storage of ice intended for either human
consumption or packs, shall be located in clean utility room, fl.00r
pantry, diet kitchen or other suitable area protected from contamination.
D. Sterilizer Equipment Requirements .
l. A5ME 5tandards . Pressure sterilizers and pressure
instrument washer-sterilizers shall display in a visible location the
ASME Standard symbol and date plate.
2. Sterilizer Piping. Al1 sterilizer piping and devices
necessary for the operation of sterilizers shall be accessible for
inspection and maintenance.
(a. ) 5team Supply Lines: Steam supply lines to sterilizers ,
including those connected by pipes from overhead mains or branches ,
shall be drained to prevent any excess moisture from reaching the
sterilizer. The condensate drainage from the steam supply line shall.
be discharged by gravity.
(b) Steam Condensate Return Lines: Steam condensate
return lines from sterilizers shall be connected onl.y to gravity
returns . Steam condensate returns from sterilizers shall not be
connected to overhead mains or branches .
123.
� �
(Sec. 21-28 (D) (2) (c) )
(c) Condensers: Pressure sterilizers shall be equipped
with an acceptable means of condensing and cooling the exhaust steam
vapors .
Nonpressure sterilizers should be equipped with an
acceptable device which will automatically control the vapors in a
manner to confine them within the vessel, or equipped with an acceptable
means of condensing and cooling of vapors .
(d) Gas Fired Equipment: Gas fired equipment or apparatus
requiring either water or drainage connections or both, shall meet the
Standards of the American Gas Association.
E. Special Installation Requirements . Control valves , vacuum
outlets, and devices which protrude from a wall of an operating,
emergency, recovery, examining, or delivery room, a corridor or other
locations where patients may be transported on a wheeled stretcher,
shall be located at an elevation which will preclude bumping the
patient or stretcher against the device . When neCessary to install
at a low elevation, safety guards shall be used to protect the patient
and personnel.
F. Plumbing in Mental i�ospitals . In mental hospitals, special
consideration shall be given to piping, controls, and fittings of
plumbing fixtures, as required by the types of inental petients being
treated. No pipes or traps shall be exposed and fixtures shall be
substantially bolted through walls . Insofar as possible, fittings
and piping shall be concealed and vandal-proof.
G. Ice Storage Chest Drains . Any drain serving an ice chest or
box shall discharge over an indirect waste receptor and shall be
separate from all other fixture wastes . Each terminal shall discharge
through an air gap above the receptor.
H. Bedpan Washers and Clinic Sinks . Bedpan washers and clinic
sinks shall be connected to the soil pipe system and vented following
the requirements as applied to water closets except that bedpan washers
require additional local vents .
I . Sterilizer Wastes .
l. Indirect Wastes Required. Al1 sterilizers shall be provided
with individual and separate indirect wastes , with air gaps of not
124 .
� �
(Sec. 21-28 (I) (1) )
less than two (2) diameters of the waste tailpiece . The upper rim
of the receptor, funnel, or basket type waste fitting shall not be
less than two inches (2" ) below the vessel or piping, whichever is
lower.
2 . Floor Drain Required. In all recess rooms containing the
recessed, or concealed portions of sterilizers, not less than one
acceptable floor drain, connecting to the drainage system, shall be
installed in a manner to drain the entire floor area.
3. Recess Room Floor Drains, Trap Seal Maintenance. The
recess room floor drain waste and trap shall be a minimum diameter of
3 inches. It shall receive the drainage from at least one sterilizer
within the recess room to assure maintenance of the floor drain trap
seal. The sterilizer drain shall be installed on a branch taken off
between the floor drain trap and the drain head. No individual
sterilizer waste trap shall be required on this type of installation.
4. Battery .Assemblies . A battery assembly of not more than
three sterilize� wastes may drain to one trap, provided the trap and
waste are sized according to the combined fixture unit rating.
The trap shall be located immediately below one of the indirect waste
connections and the developed distance of a branch shall not exceed
8 feet. Changes in direction shall be made by a tee-wye or wye
pattern fitting.
5. Bedpan 5teamers, Additional Trap Required. A trap with a
minimum seal of 3 inches shall be provided in a bedpan steamer drain
located between the fixture and the indirect waste connection.
6. Pressure Sterilizer. Except when an exhaust condenser is
used, a pressure sterilizer chamber drain connected to the exhaust
drip tube before terminating at the indirect waste connection is
acceptable . If a vapor trap is used, it shall be designed and installed
to prevent moisture being aspirated into the sterilizer chamber. The
jacket steam condensate return, if not connected to a gravity steam
condensate return, shall be separately and indirectly wasted. If
necessary to cool a high temperature discharge, a cooling receiver,
trapped on its discharge side, may serve as the fixture trap.
125.
� �
(Sec. 21-28 (I) (7) )
7. Pressure Sterilizer Exhaust Condensers. The drain from
the condenser shall be installed with an indirect waste as prescribed
in this Code. If condensers are used on pressure sterilizers, the
chamber drain shall have a separate indirect waste connection.
8. Water 5terilizer. All water sterilizer drains , including
tank, valve leakage, condenser, filter and cooling shall be installed
with indirect wastes .
9 . Pressure Instrument Washer-Sterilizer. The pressure
instrument washer-sterilizer chamber drain and overflow may be
interconnected. Also, they may be interconnected with the condenser.
The indirect waste shall follow the provisions set forth in this Code.
J. Aspirators . Water operat�d aspirators sha11 be installed only
with specific approval of the Health Inspector. In operating rooms,
emergency rooms, recovery rooms, delivery rooms , e�amining rooms ,
autopsy rooms, and other locations except laboratories where aspirators
are installed for removing blood, pus , or other fluids , the discharge
from any aspirator sha11 be indirectly connected to the drainage
system. The suction line shall be provided with a bottle or similar
trap to protect the water supply.
K. Vacuum 5ystem Stations. Vacuum system stations shall be
located on the basis of convenience and practical use. The receptacles
should be built into cabinets or recesses but shall be visible and
readily accessible.
L. Bottle Systems . Vacuum (fluid suction) systems intended for
collecting, removing or disposing of b lood, pus , or other fluids
by the so-called bottle system shall be provided with receptacles
which are equipped with an overflow preventive device, at each
vacuum outlet station should be equipped with a secondary safety
receptacle as an additional safeguard against fluids, other than air,
entering the vacuum piping systems.
M. Central Disposal System Equipment. All central vacuum (fluid
suction) systems shall assure continuous service . Systems equipped
with collecting or control tanks shall. provide for the draining and
cleaning of the tanks while the system is in operation. In hospital.s
or like institutions having emergency power provisions , the system
126 .
� �
(Sec. 21-28 (M) )
shall be capable of remaining in service during the use of emergency
power. The exhaust from a vacuum pump used in connection with a
vacuum (fl.uid suction) system shall discharge separately to the
outer atmosphere above the roof. The exhaust discharge shall not
create a nuisance or hazard within, without, around or about the
premises .
N. Central Vacuum or Disposal 5ystems .
1. Wastes. The waste from a central vacuum (fluid suction)
system of the disposal type, whether the disposal be of barometric
leg, collecting tanks, or bottles, shall be directly connected to
the sanitary drainage system through a trapped waste.
2. Piping. The piping of a central vacuum (fluid suction)
system shall be of corrosion resistant material having a smooth
interior surface. No branch shall be less than 3/8 inch for one
outlet and sized according to the number of vacuum outlets , and no
main shall be less than 3/4 inch. The pipe sizing shall he increased
according to the manufacturer' s recommendation as stations are
increased. All piping shall be provided with adequate and accessible
clean-out facilities on mains and branches , and shall be accessible
for inspection, maintenance , and replacements .
O. Water 5ystems for Space Cooling and Heating Condensate Drains .
The lowest point of a condensate riser or risers shall be trapped and
discharged over an indirect waste sink. The trap shall. be either
"P" or a "running trap" with a cleanout. A branch sha11 be installed
upstream from the condensate drain trap for flushing and resealing
purposes . The condensate drain and trap shall be located above the
lowest floor level of the building.
P. Vent Material. Material for local vents servin:g bedpan
washers and st�rilizer vents serving sterilizers , shall be sufficiently
rust proof, erosion and corrosion resistant to withstand intermi.ttent
wetting and drying from steam vapors , the distilled water solvent
action of the steam vapors and frequent and immediate changes of
tempoeratures.
Q. Vent Connections Prohibited. Connections between local vents
serving bedpan washers, sterilizer vents serving sterilizing apparatus ,
127.
� �
(Sec. 21-2$ (Q) )
and normal sanitary plumbing systems are prohibited. Only one type
of apparatus shall be served by a given vent.
R. Local Vents and Stacks .
l. Bedpan Washers . Bedpan washers shall be vented to the
local outer atn�osphere above the roof by means of one or more local
vents . The local vent for a bedpan washer shall be not less than a
2-inch diameter pipe. A local vent serving a single bedpan washer
may drain to the fixture served.
2. Multiple Installations . Where bedpan washers are located
above each other on more than one floor, a loCal vent stack may be
installed to receive the local vent on the various floors . Not more
than 3 bedpan washers shall be connected to a 2 inch local vent
stack, 6 to a 3 inch vent stack, and 12 to a 4 inch local vent stack .
In multiple installations, the connections between a bedpan washer
local vent and a local vent stack shall be made by use of the tee
or tee-wye sanitary drainage fittings , installed in an upright position.
3. Trap Required. The bottom af the local vent stack, except
when serving only one bedpan washer, shall be drained by means of a
trapped and vented waste connection to the plumbing sanitary drainage
system. The trap and waste shall be the same size as the local vent
stack.
4. Trap Seal Maintenance. A water supply of not less than
one-quarter inch minimum tubing shall. be taken from the flush supply
of each bedpan washer on the discharge or fixture side of the vacuum
breaker, trapped to form not less than a 3 inch seal, and connected to
the lacal vent stack on each floor . The water supply shall. be so
installed as to provide a supply of water to the local vent stack for
cleaning and drain trap seal maintenanCe each time a bedpan washer
is flushed, and shall be properly protecter� against backflow.
S. Sterilizer Vents and 5tacks .
l. Connections . Multiple installations of pressure and
nonpressure sterilizers shall have their vent connections to the
sterilizer vent stack made by means of inverted wye fittings. Such
vent connections shall be accessible for inspection and maintenance.
128.
(sec. 21-28 (s) (2) )
2. Drainage. The connection between sterilizer vent and
exhaust openings and the sterilizer vent stack shall be designed and
installed to drain to the funnel or basket-type waste fitting. In
multiple install.ations, the sterilizer vent stack shall be drained
separately to the lowest sterilizer funnel or basket-type waste
fitting or receptor.
T. Sterilizer Vent Stack Sizes .
l . Bedpan 5teamers . The minimum size of a sterilizer vent
serving a bedpan steamer shall be one and one-half inches in diameter.
Multiple in�tallations shall be sized according to Table ?_2, STACK
SIZES F�R BFDPATJ STEAMERS AND 8(�ILING TYPE STERILIZERS.
TABLE �"'
STACK SIZES �'OiZ BED`:'�N STEAMLIZS ANI�BOlL1NG �i
TYI'E ST�I?.ILIZEP�S I
, (Number of connections of various sizes permitled to various sizeci �
��� sterilizer vent stucks) �
�
Stack size Connectioil Size
�
� 1-1/2 inch 2 i�lcli
�
�, 1-1/2 inch� 1 or � '
; 2 inclil 2 or 1 ;
' 2 incli` 1 and 1 �i
3 inchl 4 or `' �i
li 3 incliZ 2 and 2 �I
' 4 inch� �or 4 '
�! 4 inch� 4 and 4 _ ',
� 1/ Total of each size. �
2/ Combination of sizes.
�
2. Boiling Type Sterilizers . The minimum size of a sterilizer
vent stack shall be 2 inches in diameter when serving a utensil
sterilizer, and 1-1/2 inches in diameter when serving an instrument
sterilizer. Combinations of boiling type sterilizer vent connections
shall be based on Table 22, STACK SIZE5 FOR BEDPAN STEAMERS AND
BOILING TYPE STERILIZERS .
3. Pressure Sterilizers . Sterilizer vent stacks shall be
two and one-half inches minimum; those serving combinations of
pressure sterilizer exhaust connections shall be sized according
to Table 23, STACK SIZE5 FOR PRESSURE STERILIZERS.
4. Pressure Instrument tiaasher-Sterilizer Sizes. The minimum
size of a sterilizer vent stack serving an instrument washer--sterilizer,
129 .
(Sec. 21-28 (T) (4) )
shall be 2 inches in diameter. Not more than two sterilizers shall
be installed on a 2 inch stack, and not more than four on a 3 inch
stack.
_ ____.______ _ _
TABLE ?3
STACKSIZES FORI'RESSURB S1EP1L1�EI�,S
(Number of connections oC various sizes permitted to vaciuus vent stacks.)
� Stack Size Connection Size
I 3�4 inclt 1 incli 1-1�4 inch 1-1�2 incli
�� 1-1/2 inchi 3 or � ?or 1 �
� 1-1/2 inch� 2 and 1
� 2 incl�l 6 or 3 or 2 or 1
� 2 inchZ 3 and" 2
�,� 'Z inch� 2 and 1 and i
�; 2 inch� 1 and I and 1
� 3 inch� 15 or 7 or 5 or 3
� 3 incli`' 1 and 2 and "?
3 incli� l and 5 and 1
ICombinatioi� of siz�s.
'`Total uf eacii size.
U. Radioactive Materials . All radioactive materials shall be
disposed of in a manner so as to create no hazard to operation and
maintenance personnel of the institution or to the public . Specific
permission shall be secured from the Inspector to dispose of any
radioactive material to the drainage system.
V. Hot Water Heater and Tanks. The hot water heating equipment
shall have sufficient capacity to supply 6-1/2 gallons of water at
125 degrees F. per hour bed for fixtures ; 4 gallons of water at ].80
degrees F. per hour per bed for kitchens; and 4-1/2 gallons of water
at 180 degrees F. per hour per bed for laundry. The hot water
storage tank or tanks shall have a capacity equal to 80 percent of
the heater capacity . Where direct fired Piot water heaters are used,
they shall be of an approved high pressure type. Submerged steam
heating coils should be of copper. Storage tanks shall be fabricatec�
of non-corrosive metal or be lined with non-corrosive metal.
W. Hot Water Supply System. Hot water cirCulating mains and
risers should be run from the hot water storage tank to a point
directly below the highest fixture at the end of each branch main.
Where the building is higher than three stories , each riser shall be
circulated. �ach main, branch main, riser and branch to a group of
fixtures of the water system shall be valved.
130 .
(sec. 21-28 (x) )
X. Vacuum Breaker Installations .
l. Hose Connections . For ordinary hose connections the
maximum height at which any hose is to be used shall be treated as
its flood level.
2. Low Volume Flows . Gdhere low volume flows might cause
leaking or spitting at the vacuum breaker parts , back pressure may
be developed by install.ing an acceptable minimum orifice valve on
the discharge side of the vacuum hreaker. This shall be in addition
to the regular control valve. This type of installation shall. be
subjeCt to review and acceptance by the Inspector before installation.
Y. Prohibited Water Closet and Clinic Sink Supply. No jet or
water supplied orifices , except those supplied by the flush connection,
shall be located in or connected with a water closet bowl or clinic
sink. This section shall not prohibit an acceptable bidet installation.
Z . 5pecial Equipment, Water Supply Protection.
1. Table 24 , FIXTURES AND THEIR WATER SUPPLY PROTECTION,
sets forth the requirements which shall be foll.owed in protecting
the �,ratex �supply for hospital fixture� against backflo�� or back-siphonage.
__ _ .
___ _ _ _ _ . _ _._
TAI�LE'_'4 �
FI`�TUR�S AND THGiR WATEP St!FPLY PKOTEC�'ION
Fixtures Type o1�Protection� Fem��rks �
Aspirators:
Laboratorv . . . . . . . . . . Vacuum Ureal:er . . . . . . . . . .
� Purtablc . . . . . . . . . . . . Vacuum breal:cr . . . . . . . . . .
Vacutim system. . . . . . . Vacutim bre�il:er . . . . . . . . . .
Bedpan:
'; Washcrs . . . . . . . . . . . . Vacuum Ureal:cr . . . . . . . . . .
iWaslier hose . . . . . . . . . Vacuum breal.er . . . . . . . . . . Locate 5 fect
� above floor.
Boiler Type
Stcrilizcr . . . . . . . . . . . Ai: Gap . . . . . . . . . . . . . . . . Not less than
twice the effec-
tive upening of
the w�ter supply
_ ----- _ _ _ _--- ------
�..�_._ ___
( E�aust condenser. . . . . . . Vacuuil3 breal�cer . . . . . . . . . .
Flusli floor draiil . . . . . . . . Vacuurra Urea�:er . . . . . . . . . .
Hose connection . . . . . .,. . Vacuum brea}:er . . . . . . . . . . Locate 6 feet
• above floor.
Pressure Instrument
washer-sterilizer. . . .; . . Vacuu�n breaker . . . . . . . . . .
Pressure
sterilizer. . . . . . . . . . . . Vactium hreaE:er . . . . . . . . . .
Vacuum systems:
Cleaninb. . . . . . . . . . . . Air gap or vacuurn braaker . . .
Fluid suctiun . . Air <�ap or vacuum brcal:er .
1Wller� vacuum breakers are used,they shall be installed af'ter tl�� last
con tro] valve.
_._. __ _ _
131 .
(Sec. 21-28 (Z) (2) )
2. Clinical, Hydrotherapeutic and Radiological Equipment .
All clinical, hydrotherapeutic, radiological, or any equipment ,
whether mentioned or not, which is water supplied or discharges to
the waste system, shall meet the requireznents of this Appendix and
this Code covering cross-conneCtions , air gaps , vacuum breakers ,
and check valves .
Special equipment and devices found under these classes
incl�el�:
� CLINICAL HYDRO'�IILR- P�AD���LOGICAL OTI�IEI'�
� APEUTIC '
Dental cuspidors Control units Violet ray
� Surgical cuspidors Arm batli Diagnostic �-ray �
Dental (flus}i rim) I,eg bath Tlierapy X-ray
lavatories
Colonic irrigation Foot batli X-ray target
Sitz batli Tub batli X-ray transformers
Emergency bath Immersion bath X-ray oil tanl<
Receiving bath Stiower batli Diffraction
Prenat�il bath Needie bath
Infant Uatli Tanl: X-ray developino
Propliylazis Pool Photographi� devcl-
oping.
Shampoo Hose Film developino
Massage Syringe Douche l��icroscopic
AA. Valve Leakage Diverter. Each water sterilizer which may be
filled with water through :directly• connected -pipirig, � shall be equipped
with an acceptable leakage diverter or bleed-line on the water
supply control valve to indicate and conduct any leakage of unsterile
water away from. the sterile zone.
BB. Miscellaneous .
l. Descaling of Sterilizer Eguipment Prohibited. Water
sterilizers, stills, or similar equipment being subjected to descaling
or other chemical treatment shall be disconnected from the water and
drainage system.
Sec. 21-29 . Tests and Maintenance.
A. Exposure of Work. All new, altered, extended or replaced
plumbing or drainage systems shall be left uncovered and unconcealed
until it has been tested or inspected and approved.
B. Equipment, Material and Labor for Tests. All equipment,
material and labor required for testing a plumY�ing or drainage system
132 .
� �
(Sec. 21-29 (B) )
or part thereof shall be furnished by the plumbing or drainage
contractor responsible for installing the work.
�. Testing of Plumbing or Drainage System. New plumbing or
drainage systems and parts of existing systems which have been
altered, extended or repaired shall be tested as prescribed hereinafter
to disclose leaks and defects , except that testing may be waived in
the following cases:
1. In any case which does not include addition to, replacement,
alteration, or relocation of any water supply, drainage or vent
piping; and
2. In any case where plumbing equipment may be set up
temporarily for exhibition purposes.
D. Methods of Testing Drainage and Vent Systems .
1. Rough Plumbing. Except for outside leaders and perforated
or open jointed drain tile, the piping of plumbing drainage and
venting systems shall be tested upon completion of the rough piping
installation by water or air and proved watertight. The Inspector
may require the removal of any cleanout pl.ugs to asCertain if the
pressure has reached all parts of the system. Either of the
following test methods shall be used:
(a) Water Test - The water test shall be applied to the
drainage system either in its entirety or in sections after rough
piping has been installed. If applied to the entire system, all
openings in the piping shall be tightly closed, except the highest
opening, and the system filled with water to point of overflow. If
the system is tested in sections, each opening shall be tightly
plugged except the highest opening of the seCtion under test, and
each section shall be filled with water but no section shall be
tested with less than 1.0-foot head of water. In testing successive
sections at least the upper 10 feet of the next preceding section
shall be tested so that no joint or pipe in the building (except the
upper-most 1.0 feet of the system) shall have been submitted to a test
of less than a 10-foot head of water. The water shall be kept in
the system or in the portion under test for at least 15 minutes before
inspection starts; the system shall then be tight at all points .
133 .
� �
(Sec. 21-29 (D) (1) (b) )
(b) Air Test. The air test shall be made by attaching an
air compressor testing apparatus to any suitable opening and after
closing all other inlets and outlets to the system, forcing air into
the system until there is a uniform gauge pressure of 5 pounds
per square inch or sufficient to balance a column of inercury 10 inches
in height. This pressure shall. be held without introduCtion of
additional air for a period of at least 15 minutes .
2 . Finished Plumbing. After the plumbing fixtures have been
set and their traps filled with water, their connections shall be
tested and proved gas and water tight.
E . Methods of Testing Water Supply Systems. Upon completion of
a section or of the entire water supply system, it shall be tested
and proved tight under a water pressure not less than the working
pressure under which it is to be used. The water used for tests
shall be obtained from a potable source of supply.
F. DefeCtive Plumbing. Where there is reason to believe that
the plumbing system of any building has become defective , it shall be
subjected to test or inspection and any defects found shall be corrected.
G. Maintenance. The plumbing and drainage system of every
building shall be maintained in such a manner as to be at a11 times
in compliance with the provisions of this Code, except that existing
plumbing installed under prior regulations or 1.aCk thereof, may remain
unchanged unless immediate hazards to health, life, or property are
evident .
Sec. 21-30 . Specifications for Sanitary Sewers.
A. General Requirements .
1. Jurisdiction. Responsibility far the design, construction
and maintenance of sanitary sewers in the City of Cape Girardeau
rests with the Office of City Engineer and the following rules and
regulations shall apply.
2 . Approval of 5ewer P1ans. In the design of sanitary sewers
the minimum design standards of the City of Cape Girardeau shall be
followed and the plans shall be prepared by a competent engineer
registered with the Missouri State Board of Registration for Architects
134.
� �
(Sec. 21-30 (A) (2) )
and Professional Engineers and authorized to practice engineering
in Missouri . The plans shall be reviewed and approved by the City
Engineer before construction is authorized.
3. Public Sewer. Plans for new pl.umbing systems or alterations
to existing plumbing systems shall be acCompanied by a diagram
showing the relative elevation of the lowest fixture and the top of
the public sewer referred to the established datum of the City of
Cape Girardeau when such public sewer is available. The plans shall
show the size , number and location of all new sewer connections and,
where applicable, shall comply with thP subdivision regulations of
the Cit�• of Cape Girardeau.
4. Supervision of Construction. Before excavation for sewer
construction is begun a competent engineer shal.l furnish all grades ,
grade stakes , batter board stakes and v,rye locations . The contractor
shall put up batter boards and stretch-lines for sewer laying and
have at least three (3) consecutive batter boards up at a11 times
while laying pipes . Batter boards shall not be more than twenty-five
(25) feet apart.
5. Recommended Specification for the Use of Laser Aligning
Equipment .
(a) The use of laser al.igning equipment is authorized
for laying of sewer lines to the specified lines and grades . The
laser beam projector is to be rigidly mounter3, with two (2) point
suspension, to its support platforms . All ground equipment vibrations
will be kept to a minimum. This will permit the laser beam to project
itself coaxially through the center of the pipe. All units must have
equipment to control atmospheric conditions in the pipe that could
effect the acceptable standard of construction.
(b) The laser aligning method selected must be approved by
the Inspector. These operators will carry identification showing
that they have satisfactorily completed the manufacturer's authorized
school.
(c) The engineer will establish center line stakes and
offset stakes at each manhole, plus one other center line and offset
stake as a checkpoint.
135.
f 7 �
(Sec. 21-30 (A) (6) )
6. Inspection. An inspector shall be on the job at all times
while sewer pipe is being laid or before it is backfilled, and shall
inspect the work as it progresses . It shall be the duty of the contractor
to see that no pipes are laid in the absence of the inspector and any
pipe laid must be removed and relaid before acceptance.
7. 5tandards . In the design of Main, Trunk and Lateral
Sewer, "A Guide For The Design of Sewage Works" of the Division of
Health of Missouri for installations and extensions of public sewage
systems shall govern except as herein provided.
8. Acceptance. After all construction has been completed
and before the sewer is accepted or placed in operation the contractor's
engineer shall file with the City of Cape Girardeau"as built"
drawings on linen showing complete details of the finished sewer
as actually constructed.
B. Sewer Pipe Materials . All materials, of whatever nature ,
required in the construction of the work embraced in the contract
shall be furnished by the contractor and shall be subject to inspection
and standard testing by the engineer, or his authorized agents,
before being placed in the work. All rejected materials shall at
once be removed from the line of work.
1.. Cement. All cement used in the work shall be Portland
Cement, which shall comply in all particulars with the "Standard
5pecifications for Portland Cement" adopted by the American Society
for Testing Materials . The cement shall be stored so as to protect
it from dampness and no damaged, partly set, or lumpy Cement shall
be used. All rejected cement shall be removed from the premises
immediately upon its defective qualities being noted.
2. Sand. The sand shall be clean and course , or a mixture
of coarse and fine grains, with the coarse grains predominating.
It shall be free from clay, loam, sticis, organic matter, or other
impurities . It shall be the equal of good, clean Miss�.ssip�si �iver gand.
3. Coarse Aggregate. Coarse aggregate shall consist of
crushed stone which is retained on a 1/4 inch screen graded from the
smallest to the largest particles. It shall be clean, hard, durable
and free from dust and all deleterious matter, and soft, flat or
136 .
� �
(Sec. 21-30 (B) (3) )
elongated particles. The maximum size stone shall be as ordered by
the Engineer.
4. Water. Water shall be provided at the site of the work by
the Contractor, who shall pay for all connections to the existing
mains, where available, and for all necessary piping along the work.
Water shall be free from oil , acids , alkalis, or organic matter.
5. Reinforcing Bars . The type of steel used for reinforement
shall be a deformed bar the least cross sectional area of which shall
be equal to that of the bar of required size, and shall develop an
ultimate adhesive or mechanical bond of 300 pounds per square inch
of surface. The physical. properties of the steel shall conform to the
following: Elastic limit 35,000 to 50 ,000 pounds per square inch.
The bar shall bend cold 180° around a pin of a diameter 3 times the
thickness of the bar, without fracture on the outside of the bend.
The bars shall be from standard section tee rails or from billets .
6. Brick. All brick shall be of the best quality, whole,
sound, hard-burned, perfectly shaped, presenting a regular and smooth
surface, and shall have a clear ringing sound when struck. Brick
shall be in size approximately 8 inches by 3-3/4 inches by 2-1/4
inches . Bricks that absorb, after being thoroughly dried, more than
15 per cent of their weight, when immersed in water for 24 hours ,
shall be rejected. All bats or defective bricks shall be culled out
at once and removed from the work.
7. Vitrified Clay Sewer Pipe . Vitrified clay sewer pipe and
specials shall be new and of the best quality of hard burned, unglazed
or salt glazed, extra strength, vitrified clay pipe. The pipe shall
be free from blisters , cracks and pronounced laminations , and must
give a metallic ring when struck with a hammer. All pipe shall be
socket pipe with sockets true, circular and concentric with the base
of the pipe and the plane of the ends at right angles to the axis of
the pipe. The pipe shall conform in all respects to A.S .T.M.
Desitnation C200-65T.
Junctions for connections on pipe sewers shall consist of "T" or "Y'°
branches burned on the pipe as an integral part thereof.
137.
� �
(Sec. 21-30 (B) (8) )
8. Reinforced and Plain Concrete Pipe. Reinforced Concrete
Sewer Pipe and specials where used shall. meet the requirements of
A. 5.T.M. Specifications C14-65. Lifting holes shall be placed in all
concrete pipe over 18 inches in diameter, and plugs supplied to
close the lifting holes .
9 . Alternate Types Pipe.
(a) 5anitary sewer pipe shall be vitrified clay pipe
unless otherwise specified on the plans by the Engineer.
(b) Storm sewer pipe shall be vitrified clay pipe or
concrete pipe, unless otherwise specified on the plans by the Engineer.
(c) Contractor may submit bid for alternate type pipe, to
above specified types of pipe, for the Engineer' s consideration.
Alternate bid will state type and size of pipe, with A.S.T.M.
Designation, type of joint proposed, and alternate bid price.
10 . Cast Iron.
(a) Casting shall be tough, close grained gray iron, free
from blow holes, shrinkage and cold shuts . They shal.l be sound,
smooth and free from blisters and all defects.
(b) Castings shall be made accurately and to dimensions
and shall be planed where necessary to secure perfectly flat and true
surfaces . Allowances shall be made in the patterns so that the thickness
shall not be reduced. Manhole covers shall be true and seat at all
points in the frame.
(c) Castings shall be thoroughly cleaned and painted
before rusting begins, and before leaving the shop with 2 coats of
high grade asphaltum or other suitable varnish that the Engineer may
direct . After the castings have been placed in a satisfactory manner,
all foreign adhering substances shall be remaved and the castings given
2 additional costs of asphaltum or other varnish as directed by the
Engineer.
(d) No castings shall be accepted, the weiqht of which
shall be less than that due to its given dimensions by more than 5
per cent.
138 .
� �
(Sec. 21-30 (B) (ll) )
11. Handling Materials . Materials shall be handled with care
to avoid damage. Materials must be deposited on a clean, hard
surface. If no such place is available, it must be deposited and
kept on planks laid close together. If streets or alleys are used
for this purpose, drainage must not be obstru�ted. Hard paved
streets and alleys used for depositing materials must be kept
clean of scattered material.
C. Excavation, Backfill, Manholes and Pipe Laying.
1. Al1 excavation shall consist of two classifications,
namely, Class "A" and Class "B" .
(a) Class "A" Excavation shall comprise solid rock in
original beds or well defined ledges, which can be removed only by
continuous blasting and all boulders or detached pieces of stone
27 cubic feet or more in content.
(b) Class "B" Excavation shall consist of all excavated
materials not mentioned under Class "A" Excavation, or in the paragraph
entitled "Removing and Replacing Pavements . "
2 . Work Included. Under the heading Excavation is included
the work of removing all trees, stumps , ar obstructions on the surface
of streets, alleys , right of way, public places, and easements ; of
making all necessary excavations not provided in the paragraph
headed "Removing and Replacing Pavements" ; of furnishing and putting
in place all shoring and brading necessary to keep the trenches free
from water during the progress of the work; or taking care of water
from sewers, drains or creeks , or other sources; of protecting all
pipes , conduits, culverts, railroad tracks, telegraph or power or
telephone poles, wires, fences , buildings , and other public or private
property where the work is done under the same, or where private
property is crossed by a sewer right of way; of removing, after
completion of the work, all shoring and bracing not necessary to
support the sides of the trenches; of hauling away of all surplus
excavation and material, including tree stumps and trees; of doing
all backfilling; of restoring all property, injury to which is
contemplated in this contract, and of restoring the surface and curbing
of all streets, alleys, and rights of way to as good a condition as
139 .
�
�
(Sec. 21-30 (C) (2) )
they were prior to excavation, excepting where such work is included
in the item "Removing and Replacing Pavements . "
3 . Method of Excavation.
(a) In general, all excavation shall be made in open cut
from the surface; the contractor will not be all.owed to tunnel without
permission from the Engineer. Permission will only be given where
a line is to be laid under a railroad track, behind the curb, across
a paved street, or where in the opinion of the Engineer it is necessary
on account of the proximity of adjacent walls or buildings , or to
preserve trees . Such excavation may then be made in alternate
sections of open cut and tunnel sections. The length of the tunnel
sections shall be specified by the Engineer and the head room in
them shall be not less than 3 feet, measured from the top of the sewer.
These sections shall not be cut down, but shall be backfilled by
tamping from each end. Where ordered by the Engineer, Cast Iron
Pipe shall be laid under street pavement by boring with an auger, or
similar method, and the space between the pipe and excavation backfilled
to the satisfaction of the Engineer.
(b) Payment will be made as if the entire line had been
excavated in open cut, except that no payment for repaving will be
allowed in the portion not removed. Compensation for any expense
incurred shall be considered as being included in the prices bid
for excavation.
4. Excavation for Pipe Sewers .
(a) Excavation for pipe sewers will be estimated as a trench
with vertical sides; a length equal to the length of the sewer laid
and a width as follows :
Diameter of Pipe 6" to 12" 15" 18° 21° '24" 27" 30" 33" 36" 3� " ��" 48"
Width of Trench 24" 28" 30 " 36" 39 " 42" 48" 51" 54" 60" 64" 72"
Diameter of Pipe 54" 60" 66" 72" 84" 90" 96" 108"
6. 7' 7 . 2 ' 7.9 ' 8. 5 '9 .5 '10 .0 ' 11. 0 ' 12 .0 '
(b) In Class "B" Excavation, the trenCh depth shall include
the thickness of the pipe. Zn Class "A" Excavation, the rock shall
be taken out square to a depth of 6 inches below the flow line, and
estimated accordingly.
140 .
�
�� �
(Sec. 21-30 (C) (5) )
5. Surface to be Kept in Passable Condition.
(a) Escavated material shall be so placed as not to
interfere with the travel on streets nor discommode occupants of
adjoining property. Trenches shall not be opened more than 200 feet
in advance of the laying ot the sewer.
(b) 5treets, alleys and rights of way shall be kept in
passable condition by refilling sunken trenches, laying temporary
paving over trenches, etc. , to the satisfaction of the Engineer.
If any such work is not done within five days after written notice
has been given by the Engineer, the work may be done by the City
and the cost paid by the responsible party.
(c) All waste material taken from the trenches shall
belong to the Contractor.
6. Bracing and 5horing. The sides of the trenches shall be
securely held by bracing and sheathing which may be removed as the
backfilling progresses . The Engineer may order in writing any
lumber left in place, and the lumber so designated will be estimated
for payment under the item "Lumber left in trench . " Lumber which is
not ordered left in shall not be estimated for payment, it being
understood that compensation therefor is included in the price bid
for excavation. The fact that the Engineer has not issued orders
in any special case shall not relieve the Contractor of liability
for damage which might legally accrue on account of his failure to
leave sufficient bracing.
7. Excavation for Manho7.es and Inlets .
(a) Excavation for manholes on sewers outside the pay line
for sewer trench heretofore set out, will bP estimated and paid for,
the remainder being included in the excavation for the sewer.
(b) Excavation for manholes will be estimated as a cylinder
having vertical sides of the same dimensions as the outside of the
brickwork at the bottom of the manhole and a height equal to the
distance from the ground surface to the bottom of the masonry.
(c) The excavation for inlets shall be inCluded in the price
bid for the inlets completed.
141.
�
�
(Sec. 21-30 (C) (7) (d) )
(d) The Contractor shall, when so directed by the Engineer,
carry trench excavation ahead of the work, or make test holes, or both,
to determine the presence of rock. This shall be done so that changes
in grade may be made before pipe is laid in the trench. No additional
payment above the unit price bid for excavation shal.l be made for
such prospecting.
8. Removing and Replacing Pavement.
(a) Under the heading "Removing and ReplaCing Pavement"
is included the work of removing such areas of pavements, curb and
gutter, and concrete sidewalks as the Engineer may direct, and of
repaving these areas after the backfill has been compacted. Such
work is to be done in accordance with the Standard 5pecifications
last approved by the City for the construction of the class of work
encountered, if such are applicable, otherwise according to the
specification under which the work was originally constructed.
(b) Only such lengths as have aCtually been removed shall
be estimated for payment, the widths of pavements to be 1 foot greater
than the pay line width of the trench. If greater width must be
paved, the compensation therefor will be considered as being included
in the prices paid for excavation. While the above stated maximum
width is the greatest that will be paid for, only such width shall be
removed as are absolutely necessary, and only such widths as have been
actually removed will be paid for. Plain macadam and gravel will be
paid for on the basis of new material furnished, the cost of removing
old materials to be paid for at the price bid for Class °'B" Excavation.
9 . Preparation of Subgrade.
(a) Whenever soft ground is encountered at the subgrade,
the Engineer may direct 7/8 inch crushed stone to be rammed into it
or that a cradle of Class "B" Concrete be placed as specified by him.
In such cases, the stone or concrete will be paid for at the prices
stated in the contract.
(b) If, in the opinion of the Engineer, a suitable foundation
cannot be secured by these methods, cradle may be construated on wooden
platforms and piling, or otherwise as may be directed. 5uch platforms
or other type of cradle shall be installed only when ordered, and will
be paid for as provided under "Extra Work. "
142 .
� �
(Sec. 21-30 (C) (10) )
10 . Pipe Sewers .
(a) Shaping trench bottom:
(1) The bottom of the trench in earth excavation shall
be shaped so as to conform as nearly as possible to the outside of
the pipe, particular care being taken to recess the bottom under each
joint in such manner as to relieve the be11. ot the pipe from all load.
(2) In"Class A Excavation" , rock shall be taken out
as nearly as possible to the pay lines specified under "Excavation"
and the trench refilled to subgrade to fit the bottom of the pipe
with 7/8 inch crushed stone throughly tamped, and to provide an even
bearing for the pipe throughout its entire length.
(3) Crushed stone will be paid for by the ton at the
price bid, and the amount of excavation will be paid for in the amount
of Class"A" Excavation bel.ow subgrade .
(b) Laying:
(1) Each pipe shall be laid to the grade and line
given by the Engineer and in such manner as to form a close concentric
joint with the adjoining pipe. The Contractor shall take every
precaution to keep the subgrade free from water while the pipe is
being laid.
(2) Joints shall be of polyvinol coupling integral
with the pipe prefabricated in accordance with A.S .T.M. Specification
C425-66T "Compression Joints for Vitrified Clay Bell and Spigot
Pipe, " or other type joint approved in writing by the Engineer.
(3) Concrete pipe sewers having tongue and groove
joints, unless otherwise shown on the plans , shall be joined by either
grouting, with mortar consisting of one part Portland Cement and
two parts fine sand, or a plastic joint compound, and in either case
according to pipe manufacturer' s recommendations as to the satisfaction
of the Engineer. When a plastic compound is used, both tongue and
grove to be primed 24 hours in advance of pipe placing.
(c) Backfilling:
(1) Before the usual backfilling is commenced, fine
earth shall be tamped around and above the pipe to at least 6 inches
above the top of the pipe, as herein specified.
143.
� �
(Sec. 21-30 (C) (10) (c) (2) )
(2) Backfilling shall follow close after the construction
of the sewers and in no case shall the backfilling be more than 150
feet in the rear of the completed work, hut backfilling shall not be
done before ample time has been allowed for the inspection of the
pipe laying.
(3) When so ordered by the Engineer, wooden bulkheads
shall be erected at manhole locations in the trench to prevent backfill
from covering such locations . Cost of such bulkheads is to be
included in the price bid for excavation.
(4) Pipe set in "Y" or "T" junctions for risers sha11
be secured to the side of the trench as directed by the Engineer, and
the backfilling carried on as the pipe is placed, in a manner as not
to dis turb the ri ser.
(d) Curved Pipe, Reducers and Expanders , Pipe Ends :
(1) Curved pipe shall be used whenever directed.
Such pipe will be paid for at the unit price bid.
(2) Reducers and expanders wi1.1 be paid for at the price
bid, which price shall be in addition to the 1.ineal payment for the
sewer of small.er size through the reducer or expander.
(3) Pipe ends: Excavation in the trench at pipe
ends shall be made by hand in such manner that the riser pipe will
rest on undistributed earth. The pipe shall be firmly fastened to
the sides and end of the trench to prevent any movement of same when
the backfill is made. Cost of this work shall be completely covered
by the unit price bid for excavation.
(4) "T" and "Y" junctions shall. be instal.led at the
place shown on the plans or as designated by the Engineer, and when
not to be used immediately shall be closed with covers held tightly
in place with mortar. Payment will be made at the price bid, which
shall be in addition to the amount paid for the pipe to which these
specials are attached, and shall include the cost of stoppers.
(e) Cast Iron Pipe - Concrete encasement of pipe:
(1) Cast Iron Pipe, if substituted wherP crossing
creeks on piers , or above ground construction on piers , or under
pavement, as may be ordered by the Engineer, shall be of the bell and
144.
� �
(Sec. 21-30 (C) (10) (e) (1) )
spigot, or mechanical joint , cast iron pipe of the internal diameter
shown on the plans, and shall conform to the Standard Federal
Specifications for Class 150 Cast Iron Pipe, of latest date. The
pipe shall be straight, with the inner and outer surfaces concentric
and conforming to the specified dimensions, and shall be in lengths
as ordered by the Engineer. If so ordered the pipe placed under
streets shall be of the flange-bolted type.
(2) Connections of Cast Iron pipe to vitrified clay
pipe shall be made with a supporting pad of Class A Concrete as
directed. Pipe shall be joined with a neoprene rubber adaptor or
approved equal, in accordance with the manufaCturer's recommendations .
(3) Where pipe is encased in concrete, such encasement
shall have a minimum thickness of 6 inches on all sides of the pipe
and reinforced with 1/2 inch round reinforcing bars as directed.
Placing of forms needed in the work shall be considered as included
in the unit price bid for Class A Concrete.
11. Mortar.
(a) Mortar for brick masonry shall be made of 1 part of
Portland Cement and 3 parts sand. Mortar for pipe joints shall be
made of 1 part of Portland Cement and 1 part sand.
(b) The sand and cement shall be thoroughly mixed dry in
proper boxes and such quantity of clean water added so as to produce
a stiff mortar of the proper consistency. The whole mass shall be
thoroughly worked with the proper tools .
(c) Mortar shall be made fresh for the work at hand, and
any mortar which has begun to set shall nat be used.
12 . Brick Masonry .
(a) Brick masonry shall be laid in a careful. and workmanlike
manner by skilled bricklayers .
(b) Common brick shall be thoroughly wetted before being
laid by immersing in water.
(c) Brick masonry for manhol.es will be measured by the
cubic foot, actual contents , and paid for at the price bid, which
price shall be full payment for the masonry in place.
145.
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(Sec. 21-30 (C) (12) (d) )
(d) The provisions from the paragraph entitled "Work in
Freezing Weather" under the heading "Concrete" shall apply to brick
mas onry.
13. Concrete.
(a) Proportions :
Class Cement Sand
Coarse Aggregate
B1 part 2 parts 4 parts
1 part 3 parts 5 parts
(b) The relative proportions of san d and coarse aggregate
may be modified at the direction of the Engineer, provided that the
proportions of cement to the total of the aggregates shall not be
changed.
(c) The mixer shall be equipged with a tank so designed
that it will automatically supply the proper amount of water.
(d) Concrete shall be mixed in a batch mixer. The mixer
shall be equipped with an instrument for measuring the time of mix.
(e) Concrete shall be mixed for at least one minute after
all the ingredients have been discharged into the mixer. The mixer
shall be run at a speed of more than 18 revolutions per minute, and
should the speed be less than 10 revolutions per minute, the time of
mixing shall be increased to inverse proportions , based on 10
revolutions per minute.
(f) iVo concrete shall be hand mixed except in relatively
small quantities by permission of the Engineer.
14. Work in Freezing Weather. Concrete shall not be mixed nor
deposited in the work in freezing weather except as directed by the
Engineer. If the work is prosecuted in cold weather, proper
precautions shall. be taken for removing frost and ice from the
materials, including heating water and aggregates and mixer drum;
for protecting the newl.y laid masonry from freezing, and for securing
for
work satisfactory in all respects. Covering/newly laid concrete,
including steam pipes for keeping warm air beneath the covering, or
salamanders , shall be provided by the Contractor.
15. Manholes . Manholes of the dimensions specified shall be
built at the points indicated on the plans, or as directed by the
Engineer, as rapidly as the construction of the sewer will permit.
146.
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(Sec. 21-30 (C) (16) )
16 . Laying Brick.
(a) A1.1 brick in each course shall be headers and break
joints with those in the adjoining course.
(b) Every brick shall have full mortar joints on the bottom
and sides , which shall be formed in one operation by placing
sufficient mortar on the bed and forcing the brick into it.
Horizontal joints shall not exceed 3/8 of an inch, and vertical
joints on the inside of the manhole shall not exceed 1/4 of an inch.
(c) All joints are to be carefully rubbed full and struck
as the manhole is built up.
(d) Upon the completion of each manhol.e, all waste mortar
and debris sha11 be immediately removed from the bottom and the
invert or bottom joint struck or pointed.
(e) A single rowlock shall be turned over all incoming
and outgoing pipe in the manhole.
(f) The Contractor shall encase all outside pipe drops
at manholes in Class A Concrete having a minimum thickness of 6 inches
from the outside of the pipe in such drops. The concrete also shall
be carried below the elbow into the manhol.e to solid ground, and
bonded to the side of the manhole. Forms shall be used to hold the
concrete in place around the pipe. Cost of this work, including all
material , labor and equipment shall be completely covered by the
unit price bid for other items.
(g) The use of precast concrete manholes or concrete block
manholes may be substituted for brick provided an agreed price
satisfactory to the Engineer is obtained. Such determination shall
be made prior to submitting a bid for the work and the price set out
in the proposal. A unit price for brick masonry must also be given
in the proposal. Brick or concrete block (if the latter is admitted)
shall be plastered with cement mortar on the outside of the manhole.
The mortar shall be of the same quality as that used in brick masonry.
5uch plaster shall extend for the full height of the manhole and the
mortar shall be at least 3/4 of an inch in thickness.
(h) Payment for such plastering shall. be compl.etely covered
by the unit price bid for Common Brick Masonry, or other type, as the
case may be, and shall include the cost of all labor, equipment and
materials used. 147 .
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(5ec. 21-30 (C) (16) (i) )
(i) Where future laterals are to be constructed, as shown
on the plans, or the sewer is to be later extended, the Contractor
shall place the proper size pipe at the proper grade and position in
the manhole. The pipe shall be so placed that the be11 end raill be
flush with the outside manhole wall and sealed with a suitable stopper.
(j) The cost of installing such connections sha11 be
considered as included in the price bid for other items and sha11 be
full payment for al1 labor, material and equipment used.
(k) Joints of precast manholes shall be sealed with
preformed plastic gasket or approved equal material . Cost of the
gasket used is to be included in the price bid for precast concrete
manholes .
17. Manhole Heights .
(a) Manholes are to be built to the existing ground surface
in all cases. Wh�n this is above the proposed grade , the manhole
brickwork shall be drawn into a 26 inch diameter, at a point 1 foot
below grade and the remainder huilt up as a 26 inch cylinder. Should
concrete manholes be used, this cylinder shall be built of brick for
future removal to grade.
(b) When the surface is below grade, the manhole brickwork
shall be drawn into an inside diameter of 28 inches at a point 1
foot below the existing surface and the manhole frame bedded carefully
in the exact center of this circle.
18. 5teps . During the construction of each manhole, cast
iron steps with hand Y�olds shal.l be set in place on the inside of
the manhole, beginning two (2) feet above the bottom and placed not
more than 18 inches apart. The top step shall be not morz than 2 feet
below the top of the manhole. These steps are to be built to the
dimensions on the plans and the ends shall be firmly built into the
wall, allowing the steps to project 3-1/2 inches from the inside wall.
19 . Manhole Frames and Covers. When the brickwork is completed,
the manhole shall be fitted with iron frames of the dimensions
specified and an open or closed cover as shown on the plans .
20. Backfilling.
(a) Selected excavated backfill material free from lumps ,
broken concrete, brick, stone , or boulders shall be deposited in the
148.
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(Sec. 21-30 (C) (20) (a)
trench simultaneously on both sides of the pipe for the full width of
the trench and to an elevation of at least 6 inches above the top of
the pipe. The backfill material shall be moistened, if necessary,
hand tamped in layers not exceeding 4 inches, on each side of the pipe
to provid.e the pipe a firm and uniform bearing, and not to disturb
its alignment. Fill so compacted shall have at least the density of
the surrounding material.
(b) If a shaped sand bedding is used in lieu of the
shaped earth foundation, the Contractor shall provide a clay cut off
wall at the upper and lower end of the pipeline and at no greater
than 50 foot intervals along the length of the pipeline, to prevent
the flow of water through the sand bedding. The clay cut off walls
shall be at least 4 feet long measured along the pipe, thoroughly
compacted, and extending f rom original ground at the bottom of the
pipe to 6 inches above the top of the pipe.
(c) Where the excavated material is prinCipally sand, the
Contractor may, with the approval of the Engineer, compact the backfill
by puddling with hose and long pipe nozzle. 2t is important that
proper precautions be taken to prevent floating of the pipe when
flooding the trench, and the Contractor shall be wholly responsible
for neglect of these precautions .
(d) Backfill from 6 inches above the top of the pipe to
the surface of the ground, in trenches across paved streets , in
parkways behind existing curbs, under sidewalks or driveways , or
under future proposed pavements where street rights of way are indicated
on the plans, shall be thoroughly tamped by mechanical means , approved
by the Engineer, to a density equal to that of the surrounding
materials .
(e) Or, the backfill from 6 inches above the top of the
pipe shall consist of a sand-cement mix, with the cement content
ranging from 5 to 10 per cent, by weight, as shall be directed by
the Inspector. Likewise, the water content of the mix shall be as
directed. Such materials shall be placed in lifts of approximately
12 inches and tamped to the elevation of the subgrade for the pavement
to be replaced.
149 .
i �
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(Sec. 21-30 (C) (20) (f) )
(f) Or, the backfill from 6 inches above the top of the pipe
shall consist of crushed limestone 1 inch surfacing, which does not
have to meet State Specifications , with sufficient moisture as directed
by the Inspector, to allow proper compaction. Such materials shall
be placed in lifts of approximately 12 inches and tamped to the
elevation of the subgrade for the pavement to be replaced.
(g) Trenches, other than those listed above, shall be
backfilled with surplus earth as directed by the Engineer.
21. Removing Bracing. Bracing should generally be removed
only when the trench below it has become completely filled, and
every precaution taken to prevent any large slips of earth from the
side ot the trench on to the pipe. All voids left by the withdrawal
of sheathing shall be immediately filled with sand, by ramming with
tools especially adapted for that purpose, by watering, or otherwise.
22 . After Settl.ement of Surface.
(a) During the life of this contract, settlement in
sewer trenches shall be refilled as soon as they occur, and, before
final acceptance, all trenches must be refilled, and all streets,
alleys and rights of way left in as good a condition as at the
beginning of the work .
(b) Where water is available, the Contractor shall jet
all trenches as directed by the Engineer, and to his satisfaction.
23. Final Cleaning of Sewers. Before final acceptance, the
Contractor sha11 remove from such portions of the sewers as the
Engineer may direct, all dirt and debris which may have accumulated
in the sewers during construction.
24. Disposal of Surplus Excavation. Surplus excavation
shall be at the disposal of the Contractor, unless otherwise directed
by the Engineer, when same shall be placed where directed; unless so
directed it shall be removed from the site of the work, but none
shall be deposited on private property until written consent of the
owner or owners thereof has been filed with the Engineer.
Disposal of surplus escavation is to be covered by the
prices paid for excavation.
i
j
150 . f
I
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(Sec. 21-30 (C) (25) )
25. Inlets . Inlets of the dimensions specified shall be built
at the points indicated on the plans or as directed by the Engineer,
as rapidly as the construction of the sewers W�ii permit. All
inlets shall be of the untrapped type unless otherwise ordered.
26, Existing Street Surfaces .
(a) Inlets shall be built to conform to the existing
street surfaces, unless otherwise ordered by the Engineer.
(b) On unpaved streets the Contractor shall shape the ground
in the vicinity of the inlet so as to conduct storm water into it. This
work will not be estimated for payment, it being understood that
compensation therefor is included in the unit price bid for excavation.
(c) On paved streets , where it is necessary to reshape
the pavement around an inlet, the Contractor shall remove the pavement,
or gutter, shape same as directed by the Engineer, and replace it in
a satisfactory manner.
27. Inlet 5tones and Sills.
(a) 5tones and sil.ls shall. be made to the exact sizes
and with reinforcement shown on the plans . They sha11 be made of
Class '°A" Concrete, except the coarse aggregate shall be limited to a
maximum size of 7/8 of an inch.
(b) Immediately after pouring, the coarse aggregate
shall be forced away from the forms across the front faCe of the stone.
(c) The surface of stones and sills shall be trowel
dressed or floated with a 1/2 inch layer of cement and sand in equal
parts , which shall be applied before the concrete beneath has begun to
set. Upon removal of the forms , the face of all stones sha11 be
washed clean and rubbed with carborundum brick until all form marks
or rough spots have disappeared, and after a second washing shall be
gone over with a thin grout, which shall be kept moist until set.
(d) Inlet stones and sills shall be l,ifted, moved and set
into place on a finished brickwork in such a manner as to injure neither
the stone or the masonry. Stones which are cracked shall be removed
from the work.
28. Inlet Pipes. Inlet pipes shall in no case project within
the inlet cylinder. The tlow line shall be placed to the exact
151.
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(Sec. 21-30 (C) (28) )
elevation of the inlet bottom and the inlet end of the pipe trowelled
to give easy exit of the water from the inlet.
D. Special Details .
1. Right of Way. The City of Cape Girardeau, Missouri, has ,
or will , secure sufficient right of way where indicated for the
construction of the sewers and appurtenances along the lines laid
down on the plans, together with permission from abutting property
owners for the use of additional ground for working room, berms ,
spoil banks, etc.
2. Existing Sewers and Service Connections .
(a) The Contractor will be required to make connections
with existing sewers where indicated on the plans or as may be
directed during the progress of the work. No extra allowance will
be made for this work, unless new materials are required therefor,
in which case the work will be estimated on the basis of the contract
prices for such new material, or at agreed prices if such items
are not set out in the contract.
(b) Where sanitary sewers , water, gas, telephone conduit,
or other service connections are encountered, it shall be the duty
of the Contractor to preserve and protect them from injury. All
expense of taking care of, removing and relaying of such lines shall
be considered as included in the price bid for excavation. However,
if the location of a sewer or other structure is such that it cuts
off the service connection and prevents it from being relayed in its
original position, requiring a special disposition of such service
connection, the work of raising, lowering or shifting such connection
so as to pass said sewer or structure will be paid for as "Extra
Work. " The Contractor shall take care , in such work, to salvage and
reuse as much of the old material as possib 1e.
3. Test Pits Ahead of Work . Where the exact location and
elevation of old sewers , water line or gas lines, telephone conduit or
electrical cable, which may effect the location and elevation of the
new work are in doubt, the Contractor shall, at the direction of the
Engineer, prospect ahead of the work in order that their location may
be definitely known, and the line and grade of the new work adjusted
accordingly, if necessary.
152.
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(Sec. 21-30 (D) (4) )
4. Ownership of Salvaged Material. All sewer pipe, cast
iron, gratings , and other appurtenances salvaged from existing
structures which are to be abandoned, shall belong to the City of Cape
Girardeau, and the Contractor will be required to preserve same for
the City .
5. Rip Rap Paving. Whenever deemed necessary, the Contractor
will be required to pave around outlets and at other points where
wash is anticipated. This paving shall consist of rip rap stone of
good quality that will not disintegrate under the action of air or
water, and shall be in pieces as nearly cubical in form as practical.
No pieces shall be less than 20 lbs. , nor more than 150 lbs . in
weight. The Contractor may substitute precast concrete blocks for
stone, with the approval of the Engineer as to the size and quality
of concrete to be used.
E. Prevailing Wage Law.
l. The Contractor will keep a clearly legible statement of
the Prevailing Hourly Wage Rates to be paid to all workmen employed
under the terms of the contract in a prominent and easily accessible
place at the site of the public works construction for the Contractor
and any Subcontractor engaged in this public works project during the
full time that any such workman shall be employed on the public
works project.
2 . The Contractor shall keep full and accurate records ,
clearly indicating the names, occupations , and crafts of every workman
employed by him in connection with this PubliC Works Contract,
together with an accurate record of the number of hours worked by
each workman and that actual wages paid therefor. Such payroll
records shall be open to inspection by any authorized representative
of the City of Cape Girardeau and the Department of Labor and
Industrial Relations, at any reasonable time and as often as may be
necessary. Such records shall not be destroyed or removed from the
State of Missouri for the period of one (1) year following the
completion of this public works project . The Contractor hereby
agrees to insert in his contracts with any Subcontractors the above
153.
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(Sec. 21-30 (E) (2) )
provisions relating to the keeping of payroll records and the
inspection of such records by the City of Cape Girardeau and the
Department of Labor and Industrial P,elations .
3. The Contractor shall file on behalf of himself and have
each Subcontractor file, upon the completion of the public works
project prior to final payment therefor, an Affidavit stating that
the Contractor and Subcontractor have fully complied with the
provisions and requirements of the Prevailing Wage Law.
4. The Contractor shall provide a bond which will. include
a provision which will guarantee the faithful performance of the
Prevailing Hourly Wage clause as included in the Contract.
F. General Provisions .
1. The Bidder is expected to examine carefully the site of
the proposed work, the proposal, plans , specifications , supplemental
specifications, special provisions, and contract forms before
submitting a proposal. The conditions indicated on the plans and
in the proposal represent information available from surveys and
studies , but the submission of a bid shall be con.sidered proof
that the Bidder has made his own examination and is satisfied as to
the conditions to be encountered in performing the work and as to
the requirements of the plans , specifications , supplemental specifications ,
special provisions , and contract.
2. The Contractor shall at all times observe and comply with
all Federal and State laws , local laws , ordinances, orders , decrees ,
and regulations existing at the time of or enacted subsequent to
the execution of the contract which in any manner affect the prosecution
of the work. The Contractor and his surety shall indemnify and save
harmless the City and all of its Officers , Engineers , �2epresentatives,
Agents , and Employees against any claims or liabi].ity arising f rom
or based on the violation of any such law, ordinance, regulation,
order, or decree, whether by himself, his employees, or his
subcontractors .
3. Until work has been accepted by the Engineer, it shall be
in the custody and under the charge and care of the Contractor. The
Contractor shall rebuild, repair, restore, or make good, at his expense,
154 .
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(Sec. 21-30 (F) (3) )
any lost or stolen City owned material, and all injuries or damages
to any portion of the work before its completion and acceptance,
caused by the action of the elements or from any other reason.
Issuance of a payment estimate on any part of the work done will
not be considered as final acceptance of any work Completed up to
that time.
G. Test of Defective Plumbing. The drainage system of any
building, which the Inspector has reason to believe has become defective,
shall be subject to a reasonable test.
H. Septic Tank By-Pass . When septic tank is to be by-passed
and existing plumbing and drainage systems of a building are to be
connected to a public sewer, the following method must be followed:
l. Inside plumbing investigation must be made to determine if
a plumbing and drainage system waste and vent piping conform with
this Code.
2. The abandoned septic tank must be back-filled with a granular
material, such as limestone or gravel. All liquid within the
tank must be pumped out before proCeeding with granular backfill.
3. Al1 sump pumps must be eliminated and basement and cellar
must have a floor drain that drains to the public sanitary sewer by
gravity.
I. Swimming Pools.
1. A11 back-wash and filter drains must be connected to the
sanitary sewer.
2. Indoor swimming pool deck drains must connect into the
sanitary sewer.
J. Sanitary Building Sewer Grade. Al1 sanitary building sewers
must be l.aid with a two (2) per cent grade. When the two (2) percent
grade for sanitary building sewers cannot be complied with because
of main, trunk or lateral sewer grades, then written permission from
the Inspector must be obtained before permit is issued or work is
started.
K. Sanitary Building Sewer Connections to Main. During
construction of sanitary main, trunk or lateral sewers , the building
sewer shall not be laid beyond the street Curb line, and where
sanitary main, trunk or lateral sewers are on easements and not
155.
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(Sec. 21-30 (K)
under any street pavement, then the sanitary building sewer must
terminate at the wye junction of the main, trunk or lateral sewer.
L. Building Sewer Connections . Building sewer connections into
manholes are prohibited, except where the sewer is connected in the
bottom of manhole and an invert be provided to the main invert
through the manhol.e. Building sewer connections into main, trunk and
lateral sewers shall be at least six (6) inch size.
M. Regulations for Opening and Excavating of 5treets and
Resurfacing of Excavations .
1. No person shall make a street cut (saw) unless they first
secure a permit for the project in accordance with provisions of
City Manager Form ORdinance No. 642 , except persons making street
cuts (saws) shall have a bond which will guarantee the work for a
period of two (2) years after restoring the site to its original
condition. Street cuts (saws) shall be made in compliance with the
provisions of this ordinance and other applicable City ordinances .
2. The permittee shall restore the surface of all streets,
broken into or damaged as a result of the excavation work, to its
original condition in accordance with the "Standard 5pecifications"
of the City of Cape Girardeau, a current copy of whiCh is on file
at the City Clerk' s office and other applicable City ordinances .
The permittee may be required to place a temporary surface over
openings made in paved traffic lanes and in this instance, the fill
shall be made with suitable material well tamped into place, and this
fill shall be topped with a minimum of at least one (1) inch of
bituminous mi.xture which is suitable to maintain the opening in good
condition, until permanent restoration can be made. The crown of the
temporary restoration shall not exceed one (1) inch above the
adjoining pavement. The permittee shall exercise special care in
making such temporary restorations and must maintain such restorations
in safe traveling condition until such time as permanent restorations
are made. The asphalt which is used shall. be in accordance with the
current standard specifications of the City of Cape Girardeau. If, in
1.56.
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(Sec. 21-30 (M) (2) )
the judgment of the City Engineer or other duly authorized person, it
is not expedient to replace the pavement over any cut (saw) or
excavation made in the street upon completion of the work allowed
under such permit by reason of the looseness of the earth or weather
conditions, he may direct the permittee to lay a temporary pavement
of wood or other suitable material designed by the permittee over
such cut (saw) or excavation to remain until such time as the repair
of the original pavement may be properly made.
Permanent restoration of the street shall be made by the
permittee in strict accordance with the current standard
specifications of the City of Cape Girardeau and other applicable
City ordinances , to restore the street to its original and proper
condition.
Acceptance or approval of any excavation work by the City
sha11 not prevent the City from asserting a claim against the
permittee and his or its surety under the surety bond required under
Chapter 24 for incomplete or defective work, if discovered within
twenty four (24) months after restoring the site to its original
condition. The City' s representative ' s presence during the performance
of any excavation work shall not relieve the permittee of its
responsibilities hereunder.
3 . If the permittee shall have failed to restore the surface
of the street to its original and proper condition upon the expiration
of the time fixed by such permit or shall otherwise have failed to
complete the excavation work covered by such permit, the City, if they
deem it advisable, shall have the right to do all work and things
necessary to restore the street and to complete the excavation work .
The permittee shall be liable for the actual cost thereof and
twenty-five (25) percent of such cost in addition for general overhead
and administrative expenses . The City shall have a cause of action
for all fees, expenses and amounts paid out and due it for such work
and shall apply in payment of the amount due it any funds of the
permittee deposited as herein provided and the City shall also enforce
its rights under the permittee 's surety bond.
157.
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(Sec. 21-30 (M) (3) )
It shall be the duty of the permittee to guarantee and
maintain the site of the excavation work in the same condition it
was prior to the excavation for two (2) years after restoring it to
its original condition.
4. The permittee shall prosecute with diligence and expedition
all excavation work covered by the excavation permit and shall promptly
complete such work and restore the street to its original condition,
as soon as practicable and in any event not 1.ater than the date
specified in the excavation permit therefor.
5. If, in the judgment of the City Manager or his designated
representative, traffic conditions , the safety or convenience of the
traveling public or the public interest require that the excavation
work by performance as emergency work, the City Manager or his
designated representative shall have fu11 power to order, at the
time the permit is granted, that a Crew of inen and adequate facilities
be employed by the permittee twenty four (24) hours a day to the
end that such excavation work may be completed as soon as possible.
6. No person shall be permitted to work on a project under
Chapter 24 of the Code of Ordinances, unless that person has filed a
bond as required by Section 24-61 with the City Cl.erk' s office. The
City Clerk shall maintain a list of persons who have filed such bonds
and such persons shall be authorized upon making proper application
to the City Engineer 's office, to do work on a project. Persons
who have not filed a bond as required may do work on a project only
upon providing sufficient security to protect the City, which shall
be approved by the City Attorney before work shall be authorized.
When work is not properly performed in accordance with this ordinance,
the City Engineer or his designated representative shall notify such
persons that the work shall be corrected by giving the persan a
reasonable amount of time to make the correction, but not more than
fifteen (15) days . Such time for corrections may be extended for
good cause by the person giving the notice. Any person who fails to
make the corrections as requested within the time stated shall then
be notified of the failure to make the correction and upon such
notification being mailed to the person or by personal. service , the
158.
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(Sec. 21-30 (M) (6) )
City Clerk shall remove the name of the person in violation from the
approved list of those who are authorized to do work on City streets .
Notif ication of violations shall be by United States registered
mail or by personal service.
7. Any person violating any of the provisions of this ordinance
shall be deemed guilty of a misdemeanor and upon conviction thereot
shall be fined an amount not exceeding Five Hundred Dollars ($500 .00)
or to be imprisoned in the Cape Girardeau City Jail for a period
not exceeding three (3) months or be both so fined and imprisoned.
Each day such violation is committed or permitted to continue shall
constitute a separate offense and sh all be punishab le as such
hereunder.
8. If any section, subsection, sentence, clause, phrase or
portion of this ordinance is for any reason held invalid or un-
constitutional by any Court of competent jurisdiction, such portion
shall be deemed a separate, distinct and independent provision and
such holding shall not affect the validity of the remaining portions
hereof.
Sec. 21-31. Specifications for Storm Sewers.
A. Approval of Sewer Plans . In the design of storm sewers, the
plans shall be prepared by a competent engineer registered with the
Missouri State Board of Registration for ArchiteCts and Engineers and
authorized to practice engineering in Missouri . The plans shall. be
reviewed and approved by the City Engineer before a permit is issued
and construction is authorized.
Sec. 21.-32 . Regulations Governing Individual 5ewage Disposal Systems
for Homes and Other Establishments Where Public Sewage
Systems Are Not Available.
A. General Provisions .
l. Al1 sewage disposal systems shall be constructed, added
to or altered in accordance with this Code. Where a public sewerage
system is legally and economically available to the building to be
served, or within one hundred and fifty (150) feet of the property,
the Inspector may require that sewage be discharged into that system.
"Sewage disposal" under this section shall mean all private methods
159 .
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(Sec. 21-32 (A) (1) )
of collecting and disposing of domestic sewage including septic
tanks and mechanical sewage treatment plants .
2. All domestic sewage shall be disposed of by an approved
method of collection, treatment and effluent discharge. Domestic
sewage or sewage effluent shall not be disposed of in any manner that
will cause pol.lution of the ground surface, ground water, bathing
area, lake, pond, watercourse, or tidewater, or create a nuisance.
It shall not be discharged into any abandoned or unused well , or into
any crevice, sink hole , or other opening either natural or artificial
in a rock formation.
3. Where water under pressure is not available , all human
body wastes shall be disposed of by depositing them in approved
privies, chemical toilets, or such other installations acceptable
to the Inspector.
4. Water-carried sewage from bathrooms , kitchens , laundry
fixtures and other household plumbing shall pass through a septic
or other approved sedimentation tank or approved mechanical
treatment plant prior to its discharge into the soil ar into a
sand filter. Where underground disposal or sand fil.tration is not
feasible, consideration will be given to special methods of collection
and disposal.
5. The building contractor, owner, plumbing contractor or
drainlayer are jointly responsible for compliance with this Code.
6. Abandoned disposal systems shall, be disConnected from
the buildings , pumped out and filled with earth or granular fill.
7. No property shall be improved in excess of its capacity
to properly absorb sewage effluent in the quantities and by the means
provided in this Code.
8. When there is insufficient lot area or improper soil
conditions for adequate sewage disposal for the building or land use
proposed, and the Inspector so finds , no buildinq permit shall be
issued and no private sewage disposal shall be permitted. In areas
where soil conditions are critical, no building permit shall be issued
until engineering data and test reports are submitted and approved
by the Inspector.
160 .
� �
(Sec. 21-32 (B) )
B. Type of 5ystem. The type of system to be installed shall be
determined on the basis of location, soil permeability, and groundwater
elevation .
C. Sanitary Sewage. The system shall be designed to receive all
sanitary sewage, including laundry waste, from the building.
Drainage f rom footing or roofs shall not enter the system.
D. Discharge.
1. The system shall consist of a septic tank, or mechanical
treatment plant, discharging into either a subsurface disposal field
or one or more seepage pits or into a combination of both, if found
adequate as such and approved by the Inspector.
2 . No plumbing fixture may be connected to any individual
sewage disposal system where ground water may collect above the sewage
disposal system causing a flooded condition, unless the elevation of
the fixture trap is a sufficient height above the elevation of the
finished grade of the ground in which the seepage pit or disposal
field are installed to prevent back-up.
E. Alternate Design. Where soil conditions are such that neither
of the systems mentioned above can be expected to operate satisfactorily,
approval of an alternate design shall be secured from the Inspector.
Design criteria for sewage flow according to type of
establishment.
1.61.
(Sec. 21-32 (E) )
TE�B�r. zs
SEWAGG FLO�VS ACCORDIrdC "I'C)TYPF OF I;STABi,(S(-i�9I:N1
Tyl�c of Est.�blisl�ment Gal.prr d�ry per person
� Schuols(t��ilet and lavatorics only) 15 GaL per d.iy per pers��n
�' Scho�>Is(wilh above pius caietcria) �'_5 Cal.per duy per person
' Schools(witl� abov� plus cafeteria
and sho�v�rs-) 3( Gal.per d.�y per persun
Day workers�t sclio<�Is� uffices 15 GaL per day per pers.�n
Day C'�mps 'J Gal. per d.��� per pers��ii
Triiler p�irl<s��r luurist �anips
(wilh built-in-b�itll) 50 G.iL ��er du�� p�r persun �
Trailer p.irks ur tuurist��amps
(wi[h central bathhuuse) ;S GaL per da�� }�er p�r�on �
Wc,rk�r cun�rrucii��u camps 50 Gal. per �.i�y I;cr��ersun �
Public picni� p.irks(t��ilet tvaste
only�) 5 G.il. ��rr d,i�� per persun
Publi� picnic p:irk,(h�ithhuuse.
sl�owers and iiusl� t��iletsl 10 G;tl.per da�� per pers�,n
Swimtnin�� pc���ls� b�aches 10 GaL ��cr da}' per person
CounU�v Clubs _'� G�I. ��er d�i�� per pers�m
Lu�urv re�idenc�s�C es(atcs 150 G.il. l�er day per pers��n
Rcx�min�, h<,usr� �10 G:iL per d.iv pc r ncrsun
B��ardin�� I(��uscs 50 G.iL per dav per �cr��m �
Elutcls(���ith r��nncrtinc balhs) 50 G�I. pc r d:t)' per �ers��n
i Hotel�{��.�illi private but1�,=' j�orsun�
� per rc���m) 100 Cal. p�r d.i�� per prr�un
� Bc��irdinn Srlux>Is ]00 Gal. per �:!y per pers�>n
� F�ctories(g,�llvns per persun per
� shiit ct�lusive of industri�il �
w.istes) �'S Gal.per day per pers��n
� Nursin�*I���mes 75 Gal. per day per persnn
Gencral 1-lospitals 15U GaL ��er da}� per��erson ��
Public Institutio�i5(uther than
hospitals) 100 Gal. per d�i}' p�r person � �
Restaurants(toilets and kitcl�en
wastes per unit oC servin��c��paci?y�) 25 GaL per d�y per persoil
Kitchen ���astes front l���te]s,camJ�s,
b���rdin�� houses. etc.. servin<�
three me.tls per d�iy) ]0 G�l. }�e�d�.iy per persc>n
_,___
Moteis 50 Gal. j�er bed spacc
� Mc>tels with bath, toile? .�nd �
� kitchen wastes 60 GaL per bed space �
I�rivc-in tlicat�rs � 5 GaL per car spacc �
� Stures �00 G,il. per toilct ruom
Scrvi�c st�itions ]0 Gal.per vclii�le serv�d '
Airpc>rt� ' 3-5 Gal. p�r pass�ng�r
Assen�bly Halls "_' Gal. per seat �
� Buwling_Alle�ys 75 Gal. per l�ine �
� ChurclSc�(�m.�il) 3-5 G.il. },cr sanctu�u�y s�at
C'h�!r�hes(large witli kitchens) 5-7 Cal.per sanctuary seat
Dan�e Ilalls 2 GaL per day }�er person �
�� Lauudries(coin up�rated) 400 Gal. p�r machine
S�rvice Stations 1000 G�l.(first bay)
soo c�i.������<<aa. v�3�> �
� Stibdivisiuns or individual]tou�es 75 Gal. per da�� per persou �'
� Marinas Tlusli t��ilet 36 G�l. per f�i�turc per hr. �
�� Urin�ils ]0 Gai.�cr ii�ture per hr. ����
Wush basins 1� Gal. per fixttu�c per;�r.
Shc>wers � 1�0 GaL per fi�ture per i�r.
__ _____ ___ _
162.
� �
(Sec. 21-32 (F) )
F. Location of Individual Sewage System.
l. Required Lot Size Where Public Water is Available.
(a) The minimum lot size in whiCh a private disposal
system may be installed is �.2,000 square feet.
(b) Required lot size with private water system in which
a private disposal system may be installed is 20 ,000 square feet.
2. Distance.
(a) Provides for the minimum distances that shall be
observed in locating the various components of the disposal system.
(b) All sewage disposal systems shall conform with the
following general principles regarding site:
(1) Sewage disposal system shall be located at the
lowest point on the premises consistent with the general layout
topography and surroundings incl.uding abutting lots . Locations at
a higher elevation through employment of a forced system may be used
with the specific permission of the Inspector.
(2) No sewage disposal facilities shall be located on
any watersheds of the public water supply reservoir. Privies , septic
tanks and underground disposal means shall not be within 200 feet
measured horizontally from the high water level in the reservoir
or the banks of tributary streams of the reservoir when situated less
than 3,000 feet upstream from intake structures. 5ewage disposal
facilities situated beyond 3,000 feet upstream from intake structures
shall be located no less than 100 feet measured horizontally from
the high water level in the reservoir or the banks of the tributary
streams . Prior to approval, the soil must prove satisfactory by
the standard percolation test when underground disposal is used.
G. Rules and R;egulations for Percolation Tests .
1. Size of Absorption Field.
(a) The size of the absorption field to be provided for
any particular house is based primarily upon the number of bedrooms
to be served and the ability of the soil within the proposed absorption
field site to dissipate the effluent from the septic tank.
163 .
� �
(Sec. 21-32 (G) (1) (b) )
(b) The use of food-waste disposal units and automatic clothes
washing machines, however, change the character and volume of the
liquid waste from a house, and their loading effeCt is considered in
the determination of the absorbing area to be provided.
(c) The absorbing ability of the soil is estimated by
performing a percolation test on the soil in the area to be used.
All of the above design factors are correlated and presented which
may be used to determine the total horizontal area to be provided
in the bottom of the distribution trenches .
2. Percolation Test.
(a) Four (4) test holes should be made in separate test
holes spaced uniformly over the proposed site.
(b) Dig or bore the holes with horizontal dimensions of
from 4 to 12 inches and vertical sides to the depth of the bottom
of the proposed distribution trench, or at least 36 inChes deep.
Holes can be bored with a 4 inch diameter post-hole type auger.
(c) Roughen or scratch the bottom and sides of the holes
to provide a natural surface. Remove all loose material from the
hole. Place about 2 inches of coarse sand or fine gravel in the hole
to prevent bottom scouring.
(d) Fill the hole with clear water to a minimum depth of
12 inches ov�r the gravel. By refil.ling, if necessary, or by supplying
a surplus reservoir of water (automatic siphon) keep water in the
hole for at least four hours, and preferable overnight.
In sandy soils containing little or no clay, the above
saturation procedure is not necessary and the test can be made after
the water from one filling has seeped away. (5ee subsection (e) . )
(e) Percolation rate measurements should be made on the
day following the saturation process , except in sandy soils .
(1) If water remains in the test hole after overnight
saturation, adjust the depth to 6 inches over the gravel. From a
fixed reference point, measure the drop in water level over a
30 minute period.
(2) If no water remains in the hole after overnight
saturation, add clear water to depth of about 6 inches over the gravel .
164.
(Sec. 21-32 (G) (2) (e) (2) )
From a fixed reference point, measure the height of the water surface
at approximately 30 minute intervals over a 4 hour period, refilling
the hole to a depth of 6 inches as necessary . The drop which. occurs
during the final 30 minute period is used to calculate the percolation
rate.
(3) In sandy soil.s, or other soils in which the first
6 inches of w ater seeps away in less than 30 minutes , after the
overnight saturation period, the time interval between measurements
can be taken as 10 minutes and the test run over a period of one
hour. The drop which occurs in the final 10 minute period is used
to calculate the percolation rate.
(f) In no case should less than 400 square feet of
absorption area per residence be provided.
(1) Zn conjunction with the percolation test, a
subsoil investigation should also be made . If rock, hardpan, or
other impermeable stratum is found at a depth less than 4 feet,
results of the percolation tests must be interrupted with caution.
The case also warrants special consideration if the ground water
table is less than 4 feet deep during any prolonged period. The
water table is closest to the ground surface during late winter or
early spring.
__ __ _- _
�
TABLE 26 --A - �
Mii�utes per incli fall . . . . . . . . . . . . . . . . . . . . . . . . . . . S��ua��e feet
Percolation Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Per bedruom
2orless. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Between ? and 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
„ 4 and 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1"'_5 ,
„ 6and10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
„ l l and 1� . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l�)0
„ 16and "30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ?i0
,> 31 and 4> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ;00 !
Over 45 . . . . . . . . . . . . . . . . . . Abs��rption Systeti� - Sand Filter '
Minimuin tile field 4b0 �
S�nd Filter—pr� bcdroom 1 j0 ,
165.
(Sec. 21-32 (G) (2) (f) (2) )
(2) The thickness of the porous soil below the point
of percolation test must be determined by means of digging a pit or
using a soil auger. The effective absorption area shall be calculated
only within this porous soil.
H. Capacity of Septic Tanks.
l. The liquid capacity of all septic tanks shal.l conform to
Tables 25 and 26 , SET✓�AGE FLOWS ACCORDING TO TYPE OF ESTABLISHMFNT,
and, CAPACITY OF SEPTIC TANKS as determined by the number of bedrooms
or apartment units in dwelling occupancies and the occupant load
or the number of plumbing fixtur� units as determined in this Code.
TAI3Lk: 26
CAPACITY OF SLP'��C'T�NK��'�
Single;fanuly Multiple dwelling Other uses; Minimum septic tanl<
dwellingalum- units or apart- Maximum filture capacity in g�lluns
ber of bedrooms meiits 1 bed- u�lits served
room each
1-3 20 ' 1,000
� 2 wlits 25 1,200
5 or 6 3 � 33 1,500
7 or 8 4 45 2,000 '
5 55 2,?50 '
6 60 2,500 ���
7 70 �.750
8 80 3,000 �
9 90 3,�50 �
]0 ]00 3,500
Extra bedroom, 150�ailons each
Extra dwelling units over 10, 250 b��llons earh
Extra fi�ture units over 100."_'S gallons per rixture t�nit.
*Septic tank sizes in this table include sludge
storage capacity and the connection of domestic
food waste disposal units without further volume
increase. NO COMMERCSAL TO BE SIZED BY ANYONE
OTHER THAN THE INSPECTOR.
2. Multiple Compartments. In a tank of more than one
compartment, the inlet compartment shall have a capacity of not
less than two-thirds of the total tank Capacity.
3. Septic Tank Construction.
(a) Plans for all septic tanks shall be submitted to the
Inspector for approval. Such plans shall sho�a a1.1. dimensions ,
reinforcing, structural calculations and suCh other pertinent data
as may be required.
166 .
� �
(Sec. 21-32 (H) (3) (b) )
(b) Septic tanks shall be constructed of sound curabl.e
materials not subject to excessive corrosion or decay and shall be
watertight. Each such tank shall be structurally designed to withstand
all anticipated earth or other loads and shall be installed level
and on a solid bed.
4. Concrete Tanks.
(a) Baffles must be installed at the inlet and outlet ends
of septic tank.
(b) The tops shall ave a 24 inch manhole with handle to
remove same or be cast in 3 or 4 sections cemented in place.
(c) The minimum thickness of the walls shall be 2-3/4 inches .
(d) The tops and bottoms shall be 4 inches thick unless
placed under a driveway, then they shall be a minimum of 6 inches.
(e) All tank walls and bottoms shall be reinforced with
"Road Mesh. "
(f) The tops shall have 3/8 inch steel reinforcing on
6 inch centers.
(g) These tanks must be waterproof.
5. Depth of 5eptic Tank.
(a) The top of the septic tank shall. be brought to within
18 inches of the finished grade . Where a greater depth is permitted
by the Inspector, the access manhole must be extended to the finished
grade and the manhole shall have a concrete marker at grade.
(b) No se�tic tank shall serve more than one property
unless authorized by the Inspector.
(c) The effluent from all septic tanks sha1.1 be disposed
of under ground by subsurface irrigation or other methods when
approved by the Inspector.
6. Pre-Cast Top . Approved pre-cast, reinforced concrete
slab of 2500 pounds per square inch minimum compressive strength,
not less than 5 inches thick and designed to support an earth load
of not less than 400 pounds per square foot . Each such cover shall
extend not less than 3 inches beyond the sidewalls of the tank.
7. Depth Below Grade. The top sha11 be at least 18 inches
below finished grade, except where less is permitted by the Inspector.
167.
(Sec. 21-32 (I) )
I . .Absorption Trenches.
l. Absorption Trenches . Absorption trenches sha11 be
designed and constructed on the basis of the required effective
percolation area.
2. Filter Material.
(a) The filter material shall cover the tile and extend
the full width of the trench and shall be not less than 12 inches
deep beneath the bottom of the tile, and 2 inches above the top of
tile. The filter material may be washed, Class "B" gravel.
(b) The fil.ter material shall be covered by untreated
paper or by a 2 inch layer of straw as the laying of the pipe drain
proceeds.
3. Absorption Fiel.d. The size and minimum spacing requirements
for absorption fields shall conform to those given in Table 27 ,
SIZE AND SPACING FOR DISPOSAL FIELDS .
Masimum length of lateral shall not exceed 75 feet .
4 . Absorption Lines .
(a) Absorption lines shall be constructed of 4 inch pipe
of open jointed or perforated clay tile.
(b) Each section shal.l be spaced not more than 1/4 inch,
and the upper half of the joint shall be protected by asphalt-treated
paper while the piping is being covered.
5. Grade . The trench bottom shall be uniformly graded to
slope froin a minimum of 2 inches to a maximum of 4 inches per 100 feet.
TAP I_,E 27
SIZL AND SPACING F012 �iSPOSAL rIELLS
�� Widtli of[rencl� at Recommended depth _ Spaein� tile lines"
bottonl(in.�) of trench(in.) (ft.)
24 30-3G 10
30 30-3C ]0
36 �0-3C 10
*A gre.ater spacin�is desii•abl�«�l�c�i-e a�-ail��ble area I��rmit,,..
�Ialinlum lengtli of ab.>;�rption tr�nth is^s5 f�et. ��
168.
�
�
(Sec. 21-32 (J) )
J. Piping Material. All piping from building drain to sewage
disposal system shall be a minimum of 4 inches .
K. Sand Filters . General Specifications for Design and
Construction of a Sand Filter with Chlorination.
1. A sand filter shall consist of a bed of clean, graded
sand on which septic tank effluent is distributed by means of a
siphon and pipe, with the effluent percolating through the bed to a
series of underdrains through which it passes to the point of disposal.
2. The filter size shal 1 be determined on the basis of
1.15 gallons per square foot per day if covered and 2 . 3 gallons per
square f oot per day if an open filter is to be used.
3. The septic tank effluent sha11 enter � dosing siphon tank
of a size to provide a 1 inch coverage of the sand filter.
4. The siphon shall be of a commercial type and shall
discharge the effluent to the sand filter intermittently. The siphon
shall be omitted if a pump is used to lift septic tank effluent to
the sand filter.
5. A surge tank shall be used to receive the pump discharge
prior to dosing on the sand filter.
6. 6 inch under drains shall be installed in single under
drain type sand filters . A 4 inch diameter under drain may be
used where there are two or more under drains employed in a filter
system. Unglazed farm tile in 1 foot lengths laid with open joints,
with the top half of each covered with 4 inCh wide strips of tar
paper, burlap or copper screen, shall be used for under drains .
7. THey shall be laid at the bottom of fine sand filter,
surrounded by washed "B" gravel and free of fines, dust, ashes or
clay, with the gravel at least 1.0 inches above the top of the tile.
8. The underdrains shall have a slope from 2 inches to 4 inches
per 100 feet and shall be placed at 6 foot intervals .
9 . Above the gravel for the underdrain there shall be placed
3 inches of pea gravel and above the pea gravel there shall be 3
inChes of special filter sand, above the filter sand there shall be
3 inches of washed Class "B" gravel, then the 4 inch top drain tile ,
169 .
� �
(Sec. 21.-32 (K) :(9) )
which must be covered with 3 inches of washed "B" gravel and then
installation must be covered with 6 inches of straw and roofing paper.
10 . The chlorine contact tank for disinfection of sand filter
effluent and mechanical sewage treatment plant, shall provide
20 minuted detention at average flow, but in no case shall it be
smaller than 50 gallons capacity . Chlo�ine control should be
provided by the use of hypochlorite or chlorine machines commercially
available.
L. Scavengers .
1. Every person engaged in the business of removing and
disposing of the solid and liquid content of private sewage disposal
systems shall obtain an annual permit from the City of Cape Girardeau
Health Department.
2 . All solid and liquid contents of chemical toilets, septic
tanks, seepage pits, and watertight pits for septic tank effluent
shall be removed, when necessary, and disposed of in conformance
with the following requirements:
(a) Every scavenger shall obtain a permit from the
Health Officer to engage in such operation. Requirements for obtaining
such permits may be established by the Inspector.
(b) The name and �ddress of the scavenger, or his license
number, or both shall be legibly lettered on both sides of each
vehicle used for scavenging purposes .
(c) Every vehicle used for scavenging purposes shall be
equipped with a watertight tank or body and be maintained in a clean
and sanitary condition. Liq�id waste shall not be transported in an
open body vehicle unless contained within suita.ble portable receptacles .
(d) A11 portable receptacles used for transporting liquid
or solid wastes shall be watertight, equipped with tight fitting lids ,
and shall be cleaned daily.
(e) All pumps and hose lines shall be maintained so as to
prevent leakage.
(f} Approval in writing shall be obtained from the City
of Cape Girardeau Health Department for every site at which a
scavenger plans to discharge the waste material collected.
i�o .
� �
(Sec. 21-32 (L) (2) (g)
(g) Waste material collected by a scavenger shall not be
discharged into ditches, watercourses , lakes, ponds, tidewater, or
at any point where it can pollute any water supply.
Sec. 21-33 . Potable Water Su ply System Pumps .
A. General Regulation.
1. The regulations in this section apply to any water system
where plumbing fixtures are installed for human occupancy.
2 . Pumps shall be installed only in wells and cisterns that
comply with the Rules and Regulations as determined by the City of
Cape Girardeau Health Department.
B. Quantity of T�later Required.
l. One Family Home . The minimum capacity of the system in
gallons per minute shall equal the number of fixtures installed.
For a home with 5 fixtures installed, a minimum of 5 g.p.m. is
required for a 1 hour period. For each fixture in excess of 5 fixtures,
1 g.p.m. must be added for each fixture installed.
2. In other than one family dwellings , the water system shall
be designed in accordance with this Code and shall be capable of
supplying the maximum demand to the system according to usage but in
no case less than for a minimum period of 30 minutes .
3. Total water available during any 24 hour period shall not
be less than required by this Code .
4. When the available primary source of water does not meet
the aninimum requirement of this Code, one of the following methods
shall be used:
(a) Pressure tank of sufficient size .
(b) Gravity tank.
(c) Two pump system is required as follows:
(1) The capacity of the first well pump shall not
exceed the well capacity in flow. This pump supplies water to another
tank, which stores the water at atmospheric pressure; and has a
control to start and stop the pump.
171.
� �
(Sec. 21-33 (B) (4) (c) (2) )
(2) The second pump delivers the water to a hydropneumatic
tank at the required pressure and quantity.
C. Pressure. Pressure shal.l be as required for adequately
supplying plumbing fixtures, but at no time exceed 80 psi.
D. Piping Materials .
l. Piping from well to inside of dwelling shall be as set
out in this Code for water service lines .
2 . P.V.C. pipe and fittings shall be properly labeled and
installed in conformance with the Regulations of this Code. Labeling:
(a) Pipe and fittings shall be marked to be shown in
compliance with the above standards .
(b) The Seal of Approal of the National Sanitation Fittings
Laboratory shall be considered evidence in compliance with the
above standares.
(c) Polyethelyne pipe and fittings shall be properly
labeled and installed in conformance with Commercial Standards
Regulation CS-255. Labeling:
(d) Pipe and fittings sha11 be marked to be shown in
compliance with the above standards.
(e) The Seal of Approval of the P7ational 5anitation
Fittings Laboratory shall be considered evidence in compliance
with the above standards .
(f) All pipe and fittings shall withstand the pressure
requirement imposed by combined static and pressure head and/or a
minimum rated working pressure of 100 pounds .
E. 5torage Tanks . Storage equipment shall be as follows:
l. Al1 tanks shall be certified under V�7ater Systems Council
Standards for size and pressure.
2 . All tanks shall be coated or made of material to resist
corrosion.
3. Hydropneumatic tanks shall have a working pressure rating
in excess of the maximum system pressure, but not less than 75 psi .
4. All tanks sha11 be constructed of materials and coatings
which are non-toxic.
172 .
� �
(Sec. 21.-33 (E) (5) )
5. All tanks shall be provided with a means of draining.
6. Atmospheric storage tanks shall be provided with a cover
as required in this Code.
F . Pumps . Pumps shall be as follows:
1. Pumps shall be certified under Water Systems Council
Testing and Rating Standards .
2. Pumps shall be installed in accordance with the manufacturer's
recommendations .
3. Pumping equipment shall be installed to prevent the entrance
of contamination or objectionable material either into the well or
into the water that is being pumped.
4 . The pump shall be located to facilitate necessary maintenance
and repair, including overhead clearance for removal of drop pipe
and other accessories .
5. The pump shall be suitably mounded to avoid objectionable
vibration and noise, and to prevent damage to pumping equipment.
6. The pump controls and accessories shall be protected from
weather.
G. Pump Down Control. �ahere a pump exceeds the well capacity,
one of the following pump-down controls shall be installed:
l. Jetpump-deep well.
(a) Install 30 feet of tailpipe below the jet on deep
well installations .
2. Other pumps use low pressure cut-off switches or low water
level cut-off switches .
3. Use a vertical suction pipe of 30 feet length on shallow
well jet installation.
H. Controls - Devices. The following controls are required on
all pump installations:
l. Pressure switch.
2 . Thermal overload switch.
3. Pressure relief valve on positive displacement pumps .
4. Low water level cut-off switch is also required on all
pumps that have a capacity in excess of the source of water.
173.
� �
(Sec. 21-33 (I) )
I . Well Terminal
1. Upper Well Terminal. �Vell casin, curbs and pitless
adaptors shall terminate not less than eight (8) inches above the
finished ground surface or pump house floor and at least 24 inches
above maximum high water level where flooding occurs . No casing
shall be cut off or cut into below ground level except to install
a pitless adaptor.
2. Pitless Adaptor.
(a) Pitless adaptors designed to replace a section or
well casing or for attachment to the exterior of a well casing sha].l
be constructed of materials which provide strength and durability
equal to the well casing.
(b) Installation shall be by threaded, welded or compression
gasketed connection to cut-off casing or attachment to the exterior
wall of the casing sha11 be watertight.
(c) Adaptor units designed to replace a section of the
well casing shall extend above the finished ground surface as provided
for in Upper Well Terminal. The top of the adaptor unit shall be
capped with a Cover having a downward flange which will overlap the
edge of the unit. The cover shall. be securely fastened to the unit
and shall fit sufficiently snug to the unit to be vermin proof. The
cover shall provide for watertight entrance of electrical cables and
vent piping of airline if installed.
3. Hand Pumps .
(a) Hand pumps shall be of the force type equipped with
a packing gland around the pump rod, a delivery spout which is closed
and downward directed, and a one piece bell type base which is part
of the pump stand or is attached to the pump col.umn in a watertig�t
manner.
(b) Installation. The bell base of the pump shall be
bolted with a gasket to a flange which is securely attached to the
casing or pipe sleeve.
4. Power Driven Pumps . The design and operating principles
of each type of power driven pump determines where each may be
located with respect to a well. The location selected for the pump
174 .
� �
(Sec. 21-33 (I) (4) )
determines what factors must be considered to make an acceptable
installation.
5. Location Above Well. Any power driven pump located over
a well shall be so mounted on the well casing, pipe sleeve, pump
foundation or pump stand that a watertight clasure is or can be made
for the open end of the casing or sleeve. The pump base bolted with
a neoprenne or rubber gasket or equivalent watertight seal to a
foundation or plate provides an acceptable seal. On large pump
installations the bolting may be omitted when the weight of the pump
and column is sufficient to make a watertight contract with the
gasket. If the pump unit is not located over the casing or pipe
sleeve but the pump delivery or suction pipes emerge from the top of
the well, a watertight expanding rubber seal or equivalent shall be
installed between the well casing and piping to provide a watertight
closure. The top of the seal shall not extend below the uppermost
edge of the casing or pipe sleeve.
6. Location in Well. This type of l.ocation is permissible
for submersible pumps only. When the discharge line leaves the well
at the top of the casing, the opening between the discharge line
and casing or pipe sleeve shall be sealed watertight with an expanding
rubber seal or equivalent device. When an underground discharge is
desired, a properly installed pitless adaptor shall be used. A check
valve shall be installed in the discharge line above the pump in
the well. When the discharge pipe leaves the well at the top, remains
above ground, and slopes to drain back to the well , the check valve
can be located beyond the we11.
7. Offset From We11. Pumps offset from the well. , if not
located in an above ground pump house or other building, may be
located in an approved basement, provided the pump and all suction
pipes are elevated at least 12 inches above the floor. All portion
of seuction lines buried below the ground surface between the well
and the pump and which are not encl.ased in a protective pipe shall be
located at the same minimum distance from sources of contamination
as are prescribed for the well in Missouri State Health Department
175.
� �
(Sec. 21-33 (I) (7) )
Regulations . When these minimum distances can not be obtained, the
suction line sha11 be enclosed in a protective pipe of standard
thickness from the well to the pump. The protective pipe shall. be
sealed watertight at both ends. This requirement sha11 be considered
if the suction line lies within a pressure discharge l.ine.
J. Vents .
l. All vent piping shall be of adequate size to allow
equalization of air pressure in the well and shall be not less than
one-half inch in diameter. Particular attention shall be given to
proper venting of wells and pressure tanks in areas where toxic of
inflammable gasses are known to be a characteristic of the water.
If determined that either of these gases are present, all vents, when
located in buildings, shall be extended to discharge outsi�.e of the
building where they will not be a hazard.
2. The vent shall extend above the upper terminal of the well
with the end downturned and covered with not less than 16 znesh
screen wire. The point of entry into the we11 shall be sealed
watertight.
K. Pump Bearing Lubrication. Lubrication of bearings of power
driven pumps shall be with water or oil which will not adversely
affect the quality of the water to be pumped.
1. Water Lubrication. If a storage tank is required for the
lubrication water, it shall be designed to protect the water from
contami.nation.
2 . Oil Lubrication. The reservoir shal.l. be designed to protect
the oil from contamination. The oil shall not contain substanCes
which will cause odor or taste to the water pumped.
L. Water Level Measurement. On wells of large capacity where
access for measuring the water level in the well is provided, piping
for this purpose shall terminate above the upper well terminal,
be capped or otherwise closed, and all openings around the piping at
the point of entry into the we11 sealed watertight.
M. Prohibited Pumps . No pitcher or chain bucket pump shall be
installed on any water supply.
176.
� �
(Sec. 21-33 (N) )
N. Pump Housing.
l. A separate structure housing the water supply and pumping
equipment shall have an impervious floor and rain tight walls and
roof.
2. A pump pit shall be of watertight construction and provided
with a positive drain or sump pump to keep the pit dry.
O. Cross Connection.
l. There shall be no c�oss connection between an individual
water supply system and other individual or public water supply
systems .
2 . No water supply shall serve more than one property unless
authorized by the Inspector.
Sec. 21-34. Trailer Park Plumbing Standards.
A. Reference should be made to the Inspector and the regulations
promulgated by the Inspector governing the establishment and operation
of trailer home parks.
B. Definitions . Definition of terms shall apply as follows:
1. Service Building - A building housing toilet, bathing,
laundry and such other facilities as may be required.
2. Sewer Connection - Sewer connection is that portion of the
drainage piping which extends as a single terminal under the trailer
coach for connection with the trailer park drainage system.
3. Trailer Coach - Any camp-car, trailer, or other vehicle
with or without motive power, designed and constructed to travel on
the public thoroughfares in accordance with provisions of the Vehicle
Code and designed or used for human habitation.
4. Trailer Coach, Dependent - Is one which is not equipped
with a water closet for sewage disposal.
5. Trailer Coach, Inc�ependent - Is one which is equipped with
a water closet for sewage disposal.
6. Trailer Coach Drain Connection - Is the removable extension
connecting the trailer coach drainage system to the trailer connection
fixture.
177.
� �
(Sec. 21-34 (B) (7) )
7. Trailer Coach, Left 5ide - Left side of trailer coach is
defined as the side farthest from the curb when the trailer home is
being towed or in transit.
8. Trailer Connection Fixture - Is a connection to a trap
which is connected to the park drainage system, and receives the water,
liquid or other waste discharge from a trailer coach.
9 . Trailer Park Drainage System - Is the entire system of
drainage piping used to convey sewage or other waste from a trailer
connection fixture to the sewer.
10. Trailer Park Branch Line - Is that portion of drainage
piping which receives the discharge from not more than two trailer
connection fixtures .
11. Trailer Park - Is any area or tract of land where space
is rented or held-out for rent, or occupied by twa or more trailer
coaches.
12. Trailer Park Sewer System - Is that piping which extends
from the public or private sewage disposal system to a point where
the first trailer park drainage system branch fitting is installed.
13. Trailer Park Water 5ervice Main - Is that portion of the
water distribution system which extends from the street main, water,
or other source of supply to the trailer site water service branch.
14. Trailer Site - Is that area set out by boundaries on
which shall be located one trailer.
15. Trailer Site Water Service Branch - Is that portion of the
water distributing system extended from the park service main to a
trailer site, and incl.udes conneCtions, devices and appurtenances
thereto.
16. Water Service Connection - Water service connection is
that portion of the water supply piping which extends as a single
terminal under the trailer coach for connection with the trailer coach
park water supply system.
C. Standards . Plumbing systems hereafter installed in trailer
home parks sha11 conform to the provisions of this Code . Trailer
home park plumbing and drainage systems shall in addition conform to
all other applicable Administrative Authority regulations .
178.
� �
(Sec. 21-34 (C) (1) }
l. Plans and 5pecifications. Before any plumbing or sewerage
disposal facilities are installed or altered in any trailer park,
duplicate plans and speCifications shall be filed, and proper permits
obtained from the Plumbing Inspector. Plans sha].l show in detail:
(a) Plot plan of the park, drawn to scale, indicating
elevations, property lines , driveways, existing or proposed buildings,
and the sizes of trailer sites .
(b) Complete specification and piping layout of proposed
sewage disposal system or alteration.
(c) Complete specification and layout of proposed sewage
disposal system or alteration.
(d) Trailer park plumbing system shal,l be designed and
installed in accordance with the requirements of the plumbing code
and shall, in addition, conform to all other pertinent local. ordinance
and State regulations .
D. Materials . Materials shall Conform to the approved standards
set forth in this Code .
E. Sewer.
l. The Trailer Park Drainage System shall be designed and
installed in accordance with the requirements of this Code, or may be
installed by the use of a waste and vent drainage system, which shall
consist of an installation of waste piping, as hereinafter provided
in this 5ection; in which the traps for one or more trailer connection
fixtures are not separately or independently vented, but which is
vented through the waste piping of such size to secure free circulation
of air therein.
2. Each independent trailer site shall be provided with a
trapped trailer connection which shall. consist of a three inch
horizontal iron pipe-size threaded connection, installed a minimum
of three inches and a maximum of six inches (from the bottom of the
connection) , above the finished grade. The vertical connection to
the trailer connection fixture shall be anchored in a concrete slab
four inches thick, and 18'° x 18" square.
3. Any part ot the plumbing system extending above the ground
shall be protected from damage when deemed necessary by the Inspector.
179 .
� �
(Sec. 21-34 (E) (4) )
4. Each trailer site shall be provided with a three inch
I .P.S . male or female threaded connection extending above the
surrounding grade from a three inch minimum size P-trap. Traps
shall. be located with reference to the immediate boundary lines of
the designated spaCe or area within each trailer site that wi11
actually be occupied by the trailer. Each such trap shall be located
in the rear third quarter section along the left boundary line of
the trailer parking area not less than one foot or more than three
feet from the road side of the trailer and shall be a minimum of
five feet from the rear boundary of the trailer site. This location
may be varied by permission of the Inspector when unusual conditions
are encountered.
5. All traps , tail pipes, vertical vents, the upper five feet
of any horizontal vent, and the first five feet of any trap branch
sY�all be fabricated from materials approved for use within a building.
6 . No vertical pipe sha11 be used in a special waste and vent
system, except the vent pipe, and the connection to the trailer
connection fixture.
7. Mobile home and travel trailer drain connections shall
be of approved semirigid or flexible reinforced hose having smooth
interior surfaces and not less than three inches (3") inside
diameter. Drain connections shall be equipped with a standard
quick disconnect screw or clamp type fitting, not less in size
than the outlet. Drain connections sha11. be gas-tight and no longer
than necessary to make the connection between the trailer coak
drain connection and the trailer connector fixture on the site.
8. Cleanouts shall be provided as required by this Code ,
except cleanouts shall be provided in the vent stacks one foot
above grade.
9 . For the purpose of determining pipe sizes, each trailer
site connection shall be assigned a waste loading value of six (6)
fixture units and each trailer park drainage system shall be sized as
provided in Table 28 hereof. Private sewage disposal sha1.1 conform
to the requirements of 5ection 21-32 of this Code.
180 .
(Sec. 21-34 (E) (10) )
l0 . Minimum grade for sewers shall be so designed that the
slope wi11 have not less than a two (2) per cent grade.
11. The discharge of the park drainage system shall be connected
to a public sewer. Where a public sewer is not available within
150 feet for use, an individual sewage disposal system shall be
installed, of a type that is acceptable and approved by the Inspector.
12 . Minimum pipe size for drainage systems shall b� a� set
forth in �'able 28 below.
_ _
_ _
�l'.4BLE 28
!�1zu.�Io. of irailers Individually zi- 5ize of�Drain
Vented Systen�s
� 3>,*
30 4„
100 �"
4�� p"
O
I,000 10"
* The ma�,i:num ?en�„th of an�� three inch trap branch is six feet
i:�i:71 itS Vc'nt.
13. The drainage system of a utility or other building, shall
not discharge into a wet-vented line. No house sewer shall discharge
into a wet-vented line.
14 . No house sewer or part thereof, shall function as a wet�vent.
15. Al1 vent intersections shall be taken off above the center
line of the horizontal pipe. All vent stacks shall be supported by
a four inch by four inch redwood post, set in at least two feet of
concrete extending at least four inches above the ground, or supported
by another app�oved method.
16 . Each trailer connection fixture outlet shall be provided
with a screw-type plug or cap, and be effectively capped when not
in use.
F. Water Distributing System.
l. Each trailer park water distributing system shall conform
to the requirements of this Code and shall be so designed and
maintained as to provide a residual pressure of not less than
twenty (20) P.S.I . at each trailer site under normal operating conditions .
(a) Every trailer site shall be provided with an individual
water service branch line which shall be not less than 3/4" in
diameter, delivering safe, potable water.
181.
� �
(Sec. 21-34 (F) (1) (b) )
(b) A control valve shall be installed on the water service
branch, followed by a spring-loaded check valve on the discharge of
the control valve, with a pressure relief valve located on the
discharge side of the spring-load�d check valve; with a hose connection
or other approved attachment on the trailer side of the relief valve.
Each such pressure relief valve shall. be equipped with a full size
drain with the end of the pipe not more than two feet or less
than six inches above the ground and pointing downward. Such drain
may terminate at other approved locations . No part of such drain
pipe shall be trapped. No shut off valve shall be installed between
any such pressure relief valve and the trailer it serves. The backflow
device and relief valve shall be located not less than 12 inches above
the grade .
(c) The service connection shall not be rigid. Fl.exible
metal tubing is permitted. Fittings at either end sha11 be of a quick
disconnect type not requiring any special tools or knowledge to
install or remove.
(d) Each trailer outlet on the water distribution system
sha11 be rated as six (6) water fixture units.
2 . Location of Water Connection. The trailer park water
outlet for each trailer coach space shall be located near the center
of the left side of each trailer coach.
3. Fire Protection. In the design of the water distribution
system in a trailer park, consideration for fire outlet stations
throughout the park should be made relative to the location and
quantity of water necessary during an emergency period.
G. Gas Distribution System.
l. In mobile home and travel trailer parks in which gas
distribution systems are installed, the installation shall conform
with the requirements set forth in the N.F.P .A. 54-1964 or ASA Z21.30-1964 .
2 . The minimum size of the gas service line to each mobile
home or travel trailer site shall be 3/4 inch and a cut-off valve shall
be installed on each branch.
H. Testing. Installations shall be tested and inspected as
required by the installation requirements of this Code.
182 .
(Sec. 21-34 (I) )
I . Sanitary Facilities.
1. Public toilets, baths , and lavatories shall be installed
and maintained for each sex in accordance with the following ratio
of trailer sites .
(a) Trailer parks constructed and operated exclusively
for dependent trailers shall have one toilet, one shower, and one
lavatory for each ten sites or fractional part thereof.
(b) Trailer parks constructed and operated exclusively
for independent trailers shall have one toilet, one shower, and one
lavatory for each 100 sites or fractional part thereof.
(c) Trailer parks constructed and operated for the combined
use of dependent and independent trailers shall have the following
facilities:
(1) One additional toilet shall be provided for each
100 sites or fractional part thereof in excess of 70 sites .
(2) Each toilet shall be for the exclusive use of the
occupants of the trailer sites in the trailer park .
Sites Toilets Sho�vers Lavatories
� 2-25� 1 � 1 1
�26-7� `_' ? 2
(3) In every auto and trailer park, shower baths or
other bathing facilities with hot and cold running water shall be
installed in separate compartments . Every compartment shall be
provided with a self-closing door or otherwise equipped with a water
proof draw curtain.
2. Laundry Facil.ities . Every trailer park shall be provided
with an accessory uti].ity building containing at least one mechanical
washing machine or laundry tray equipped with hot and cold running
water for every 20 trailer sites or fractional part thereof but in
no case shall there be less than two laundry trays in any trailer park .
3 . Bathing or Shower Compartments. The inner face of walls of
all bathing or shower compartments shall be finished with cement,
concrete, metal, tile or other approved waterproof materials extending
183.
� �
(Sec. 21-34 (I) (3) )
to a height of not less than six feet above the floor. Floors
of shower compartments shall be made of conCrete or other similar
impervious material. Floors shall slope to floor drains at the rate
of 1/4 inch per foot.
J. Maintenance . All required devices or safeguards shall be
maintained in good working order. The owner, operator, or lessee
of the trailer park or his designated agent shall be responsible
for their maintenance. When wash rooms or toilet rooms are installed
they must conform with this Code .
K. Responsibility - Violations - Operator's Responsibility.
When it is evident that there exists, or may exist, a violation of
any pertinent regulation the owner, operator, lessee, person in
charge of the park, or any other person causing a violation shall
immediately disconnect the trailer water supply and sewer connection
from the park systems and shall employ such other carrective measures
as may be ordered by the Inspector.
5ec. 21- 35. Water Heater Replacement - Permits - Inspections - Bonds
and Fees .
A. Registration and Bond Required. Any person except a licensed
plumber, who engages in the work of WAter Heater Replacement must
register with the Plumbing Inspector, City of Cape Girardeau, Missouri ,
and shall be required to file with the City Clerk, a four (4) year
surety bond in the amount of five thousand dollars ($5, 000. 00) ,
before Special Use Permits can be issued by the Plumbing Inspector.
Registration fee will be five dollars ($5. 00) . A11 registrations
will expire on the last day of each year and shall be renewable on
the first day of each year.
B. Special Use Permit Required. Before Water Heater Replacement
installation is made, the installer or supplier must procure a permit
from the Inspector.
C. Permit and Inspection Fees . Permit and inspection fees shall
be paid to the City of Cape Girardeau Plumbing Inspector.
Water Heater Replacement Permit $ 2. 00
Inspection Fee $ 2 .00
Re-inspection Fee $ 2 .00
184.
� �
(Sec. 21-35 (D) )
D. Defective Installation. When installation is in violation
of this Code, the Inspector will request the violator to make
corrections, so as to bring installation within Code requirements .
Re-inspection will be made and re-inspection fee must be paid by
the installer.
E. Violation, Notice of.
1. When the Inspector finds an instal.lation to be in violation
of this Code, the violator shall be notified. The notification
shall be in writing and shall be delivered to the violator, or his
legally authorized representative, or mailed to his last known
address.
2. It is a violation of this Code for any person to do any
act forbidden or fail to perform any act required in this section,
including failure to register or failure to file the required bond.
3. Notification shall not be construed to be a condition of
precedent to the commencement of legal action.
F. Penalties . Any person violating any provision of this section
shall, upon conviction, be fined not less than twenty-five dollars
($25. 00) nor more than five hundred dollars ($500 .00) and each day
such violation shall continue shall be deemed to be a separate offense.
G. Ten (10) Day Notice. Legal action will be directed against
violators who do not comply within ten (10) departmental working
days after issuance of anotice of a violation. The notice shall be
issued to violators by the Plumbing Inspector.
H. Single Family Dwellings. Any permit required by the section
may be issued to a bona fide owner of a single family dwelling, which
is to be occupied exclusively for l.iving purposes, to do any work
regulated by this section on the said dwelling and on the condition
that the said owner personally purchase all material and perform all
labor in connection therewith.
I . Materials and Use of Materials .
1. Dissimilar Metals . An insulated fitting (dielectric union)
must be installed between any portion of the installation where
dissimilar metals connect.
185.
� �
(5ec. 21-35 (I) (2) )
2. A compression stop (shut-off) valve must be installed on
the cold water supply line of the water heater.
3. Gas and oil-fire water heater must have the fume pipe
installed into an adequate vent which terminates above the roof of
the building. All fume pipes must be secured by metal screws and
appropriate hangers.
4. All gas line connections to the heater must be made with
tubing to metal flare type fittings (no sweat solder type fittings
shall be approved) or iron pipe and fittings .
5. Minimum requirements for hot water storage tanks . Hot
water storage tanks shall comply with the provisions of Section 21-33 (E)
of this Code and all other provisions of this Code .
6. Safety Devices . Hot water storage tanks shall comply
with the provisions of 5ection 21-33 (E) and all other provisions of
this Code.
7. A new temperature and pressure relief valve must be
installed in the tank or in the hot water outlet pipe line. Relief
valve must be installed no farther than three (3) inches from the
hot water outlet of tank.
8 . Temperature and pressure relief valves, when installed in
the hot water supply line, must be on run end of the tee fittings ,
with the supply of water passing through the tee branch of the fittings
that supplied the hot water system.
9 . Water heater must be set plumb and all piping must be in
straight alignment, as required for good workmanship practices .
J. Inspection and Approval Installation. The installer or
supplier must contact the Plumbing Inspector and request inspection
to be made .
K. Failure to request an inspection is a violation of this Code.
Sec. 21-36 . Adoption of References .
A. All codes , standards, regulations, specifications or other
methods of ineasurement or classification of material or processes,
set forth in this section, are attached hereto, adopted and made
a part of this Code, as if fully set forth herein provided that
186.
� �
(Sec. 21-36 (A) )
should any conflicts of interpretation or requirements occur between
the provisions of any such code, standard, regulation, specification
or other method of ineasurement or classification and this Code, then
the provisions of this Code shall apply and prevail. One copy of all
codes , standards, regulations, specifications or other methods of
measurement or classification set forth in this section are filed in
the office ot the Plumbing Inspector of the City of Cape Girardeau, Missour
B. The following codes, standards, regulations, specifications
or other methods of ineasurement or classification of material or
processes are, for the purposes of this section, set forth:
Z21. 30--1964 USAS Standard.
ASA--All9 . 1 - 1963.
ASA--All9 . 2 - 1963.
USAS--B2. 1 - 1960.
U5AS--B31. 1 - 1955 -- B31.1A - 1965 Revised.
ASTM--C-425.
ASA--Z4. 2 - 1942.
ASA--A40 . 4 - 1942 .
ASA--A40 .6 - 1943.
USAS--A13. 1 - 1959 .
USAS--B9 . 1 - 1964.
A5TM Specifications-�-D 2239 - Specification for Polythylene
(PE) Pipe (SDR-PR) as they apply to Type III, Grade III ,
Designation Code PE3306.
A5TM Specifications D 1248--5pecifications for Polythylene
Molding and Extrusion Materials.
N5F Commercial Standard No. CS 255. 63.
Appendix B of the National Plumbing Code.
Section D.3 of Appendix B of the National Plumbing Code.
ASSE Standard No. 1003--Water Pressure Reducing Valves for
Domestic Water 5upply systems .
A5A Requirements for Safety Devices .
ASME Requirements for Safety Devices .
UL Requirements for Safety Devices .
National Board of Boiler Requirements for 5afety Devices.
AGA Requirements for Self Closing Combination or Separate
Pressure and Temperature Relief Valves .
187.
� �
(Sec. 21-36 (B) )
National Board of Casualty and Surety Underwriters
Requirements for Self Closing Combination or Separate Pressure
and Temperature Relief Valves .
ASME 5tandards for pomestic Hot Water Heating Tanks .
USASI Standards for Energy Cut Off Devices .
UL Standards for Energy Cut Off Devices .
American Gas Association Standards for Gas Fired Eguipment
requiring either water or drainage connections or both.
"A Guide for the Design of Sewer Works" of the Division of
Health of the State of Missouri .
Clay Products Association Requirements for Depth Limits on
Pipes in Trenches .
American Concrete Pipe Association Requirements for Depth
Limits on Pipes in Trenci�es.
A5TM Standards for Pipe Sewer Construction.
ASTM 5tandards for Manholes.
A5TM Standards for Concrete.
Commercial Standards Regulation CS-255.
Missouri 5tate Health Department Regulations for locations
of wells .
NFPA 54 - 1964 .
ASA Z21. 30 - 1964.
188.
� �
SECTION B. This entire Plumbing Code shall not be cod�fied
as a part of the Code of Ordinances of the City of Cape Girardeau,
Missouri, but the following shall be and become a part of the Code
of Ordinances of the City of Cape Girardeau, Missouri:
Section 21-1. Title .
This chapter shall be known and may be cited as the
"Plumbing Code of the City of Cape Girardeau, Missouri. "
Section 21-2. Declaratiori of Public Neces's'itv.
In accordance with Chapter 341, Revised 5tatutes of
Missouri 1969 , as amended, it is hereby found and determined
that the adoption of a "Plumbing Code" is necessary for the
promotion of the public health and safety of the citizens
of the City of Cape Girardeau, Missouri, and this Code is
enaCted pursuant to the provisions of Section 341.060
RSMo 1969 , as amended.
Section 2 1-3. No� codified.
The provisions of the Plumbing Code of the City of
Cape Girardeau, Missouri, 1973, are not made a part of this
Code of Ordinances, but are on file in the office of the
City Clerk for public inspection at all regular city
business hours .
5ECTION C. If any section, subseCtion, sentence, Clause,
phrase or portion of this ordinance is for any reason held invalid
or unconstitutional by any Court of competent jurisdiction, such
portion shall be deemed a separate, distinct and independent
provision and such holding shall not affect the validity of the
remaining portions hereof.
5ECTION D. This ordinance shall be in full force and
effect ten days from and after its passage and approval.
PA55ED AND APPROVED THIS y �� DAY OF , 1973 .
t� - � �C�--�c-�.
MAYOR
ATTEST:
� . �.,c..�t�
���
CITY CLERK
, �
CITY MANAGER FORM ORDINANCE NO. �Z1�
AN ORDINANCE REPEALING COMMISSION FORM ORDINANCE NOS. 1795, 1797,
2216 , 2407, AND CITY MANAGER FORM ORDINANCE NO. 410 AND CHAPTER 21,
OF THE CODE OF ORDINANCE5 OF THE CITY OF CAPE GIRARDEAU, MISSOURI,
KNOWN AS THE "PLUMBING CODE", AND ENACTING IN LIEU THEREOF AN
ORDINANCE TO BE KNOWN AND DESIGNATED AS "THE PLUMBING CODE OF THE
CITY OF CAPE GIR.ARDEAU, MISSOURI, 1973" , CONSI5TING OF THE FOLLOWING;
ADMINISTRATIVE PROVISIONS, BASIC PLUMBING PRINCIPALS, GENERAL
REGULATIONS, MATERIALS, JOINTS AND CONNECTION5, TRAP5 AND CLEANOUTS,
INTERCEPTORS, SEPARATORS, AND BACKWATER VALVES, PLUMBING FIXTURES,
HANGERS AND SUPPORTS, INDIRECT WASTE PIPING AND 5PECIAL WASTE,
WATER SUPPLY AND DISTRIBUTION, .DRAINAGE SYSTEM, VENTS AND VENTING,
STORM DR.AINS, MEDICAL CARE FACILITY PLUMBING EQUIPMENT, TESTS AND
MAINTENANCE, SPECIFICATIONS FOR SANITARY SEWERS, 5PECIFICATIONS
FOR STORM SEWERS, REGULATIONS GOVERNING INDIVIDUAL SEWAGE DISPOSAL,
POTABLE WATER SUPPLY SYSTEM PUMPS, TRAILER PARK PLUMBING 5TANDARDS,
WATER HEATER REPLACEMENT, AND ADOPTION OF REFERENCES; PROVIDING FOR
PENALTIES FOR THE VIOLATION .OF THE PROVISIONS THEREOF
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF CAPE GIRARDEAU,
MISSOURI, AS FOLLOWS:
SECTION A. Commission Form Ordinance Nos. 1795, 1797,
2216, and 2407, and City Manager Form Ordinance NO. 410, and
Chapter 21 of the Code of Ordinances of the City of Cape Girardeau,
Missouri, known as the "Plumbing Code" of the City of Cape Girardeau,
are hereby repealed and there is hereby enacted in lieu thereof an
ordinance to be known and designated as "The Plumbing Code of the
City of Cape Girardeau, Missouri, 1973", consisting of thirty-six
(36) sections, to read as follows :
COMPLETE ORDINANCE IN LOWER ARAWER
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