HomeMy WebLinkAboutOrd.4805.01-19-16 BILL NO. 16-01 ORDINANCE NO. ___En
AN ORDINANCE AMENDING VARIOUS SECTIONS
OF CHAPTER 23 OF THE CITY CODE RELATING
TO STORMWATER MANAGEMENT REGULATIONS
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF CAPE
GIRARDEAU, MISSOURI, AS FOLLOWS :
ARTICLE 1 . Section 23-8 (3) of the Code of Ordinances
of the City of Cape Girardeau, Missouri, reading as
follows :
The increased stormwater runoff resulting from the
proposed development shall be detained on-site by
appropriate detention basins or by other acceptable
techniques . The minimum volume of storage shall be
sufficient to store the volume from a twenty-five-
year storm (under developed conditions) . Control
devices shall limit the discharge from storage to a
rate no greater than that prescribed by this
chapter. Downstream property, watercourses,
channels or conduits shall not receive stormwater
runoff from proposed development at a higher peak
flow rate than that which existed prior to the
development . Detention/retention areas should at a
minimum filter the stormwater runoff. When
possible, filtration and/or infiltration practices
should be incorporated into the site design .
(a) Where a development site has more than
one (1) watershed, the runoff water
shall be controlled within each
watershed. Exemption from this
requirement must be approved by the
city manager or his designee . With a
request for this exemption, the
developer will be required to present
information and/or documentation
establishing conclusively that no
adverse impacts would occur to
adjoining or downstream properties from
uncontrolled runoff in a particular
watershed area of the development site .
is hereby repealed in its entirety, and a new Section 23-
8 (3) is hereby enacted in lieu thereof, in words and
figures, to read as follows :
The increased stormwater runoff resulting from the
proposed development shall be detained on-site by
appropriate detention basins or by other acceptable
techniques . The minimum volume of storage shall be
sufficient to store the volume of the difference
between (15) year storm under undeveloped
conditions and the twenty-five (25) year storm
under developed conditions . Control devices shall
limit the discharge from storage to a rate no
greater than that prescribed by this chapter .
Downstream property, watercourses, channels or
conduits shall not receive stormwater runoff from
proposed development at a higher peak flow rate
than that which existed prior to the development .
Detention/retention areas should at a minimum
filter the stormwater runoff . When possible,
filtration and/or infiltration practices should be
incorporated into the site design .
(a) Where a development site has more than
one (1) watershed, the runoff water
shall be controlled within each
watershed. Exemption from this
requirement must be approved by the
city manager or his designee . With a
request for this exemption, the
developer will be required to present
information and/or documentation
establishing conclusively that no
adverse impacts would occur to
adjoining or downstream properties from
uncontrolled runoff in a particular
watershed area of the development site .
ARTICLE 2 . Section 23-8 (9) of the Code of Ordinances
of the City of Cape Girardeau, Missouri, reading as
follows :
All excavations, grading or filling shall have a
finished grade not to exceed a 3 : 1 (three (3)
horizontal to one (1) vertical) slope . Steeper
grades may be approved the city engineer if the
excavation is through rock or the excavation or
fill is protected {a designed head wall or toe
wall may be required) . Retaining walls that
exceed a height of four (4) feet shall require
the construction of safety guards identified in
the building code identified in section 7-27 and
subsequent amendments thereto . Permanent safety
guards will be constructed in accordance with the
building code identified in chapter 7 and
subsequent amendments thereto.
is hereby repealed in its entirety, and a new Section 23-
8 (9) is hereby enacted in lieu thereof, in words and
figures, to read as follows :
All excavations, grading or filling shall have a
finished grade not to exceed a 3 : 1 (three (3)
horizontal to one ( 1) vertical) slope . Steeper
grades may be approved the city engineer if the
excavation is through rock or the excavation or
fill is protected {a designed head wall or toe
wall may be required) .
ARTICLE 3 . Section 23-8 (15) of the Code of Ordinances
of the City of Cape Girardeau, Missouri, reading as
follows :
All lots shall be seeded and mulched or sodded
before an occupancy permit shall be issued.
is hereby repealed in its entirety, and a new Section 23-
8 (15) is hereby enacted in lieu thereof, in words and
figures, to read as follows :
All lots shall be seeded and mulched or sodded,
with a density of at least seventy percent (70%)
vegetative cover over the entire disturbed area
before the certificate of occupancy shall be
issued .
ARTICLE 4 . Section 23-10 ( 6) (a) of the Code of
Ordinances of the City of Cape Girardeau, Missouri, reading
as follows :
Storage volumes . The minimum volume of storage
provided in detention basins, together with such
storage as may be authorized in other on-site
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facilities, shall be sufficient to store the
volume from a twenty-five-year storm (under
developed conditions) .
is hereby _ repealed in its entirety, and a new Section 23-
10 ( 6) (a) is hereby enacted in lieu thereof, in words and
figures, to read as follows :
Storage volumes. The minimum volume of storage
provided in detention basins, together with such
storage as may be authorized in other on-site
facilities, shall be sufficient to store the
volume of the difference between the fifteen (15)
year storm under undeveloped conditions and the
twenty-five (25) year storm under developed
conditions .
ARTICLE 5 . Section 23-10 (7) (e) of the Code of
Ordinances of the City of Cape Girardeau, Missouri, reading
as follows :
In no case shall the limits of maximum ponding
elevation be closer than twenty-five (25) feet
horizontally from any building and less than two
(2) feet vertically below the lowest sill
elevation . The entire reservoir area shall be
seeded, fertilized and mulched, sodded or paved.
is hereby_ repealed in its entirety, and a new Section 23-
10 (7) (e) is hereby enacted in lieu thereof, in words and
figures, to read as follows :
In no case shall the limits of maximum ponding
elevation of a dry-detention facility within two
(2) feet vertically below the lowest sill
elevation be closer than twenty-five (25) feet
horizontally from any building . The entire
reservoir area shall be seeded, fertilized and
mulched, sodded or paved.
ARTICLE 6 . Section 23-10 (8) (f) of the Code of
Ordinances of the City of Cape Girardeau, Missouri, reading
as follows :
The limits of maximum ponding elevations are to
be no closer than thirty (30) feet horizontally
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from any building and no less than two (2) feet
below the lowest sill elevation of any building .
is hereby repealed in its entirety, and a new Section 23-
10 (8) (f) is hereby enacted in lieu thereof, in words and
figures, to read as follows :
In no case shall the limits of maximum ponding
elevation of a wet-detention facility within two
(2) feet vertically below the lowest sill
elevation be closer than thirty (30) feet
horizontally from the lowest sill elevation of
any building .
ARTICLE 7 . A new Section 23-14 ( 1) is hereby enacted,
in words and figures, to read as follows :
(1) Pre-disturbance inspection. A pre-
disturbance inspection shall be requested by
the permittee at least 48 hours prior to
commencement of site disturbance activities
on projects one (1) acres or greater, to
inspect erosion and sediment control and
other site BMPs .
ARTICLE 8 . Section 23-23 of the Code of Ordinances of
the City of Cape Girardeau, Missouri, reading as follows :
Sec . 23-23 . - Final approval required.
(1) Any stormwater management facility for which a
permit has been issued as a part of a
subdivision improvement plan must be included
with as-built drawings and certified to have
been constructed accordingly.
(2) Any stormwater management facility for which a
permit has been issued individually or as a part
of a site development plan must be certified to
have been constructed in conformance with the
approved drawings prior to issuance of an
occupancy permit .
(3) The certification in a . and b. above must be by
a professional engineer licensed in Missouri or
a CPESC .
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is hereby repealed in its entirety, and a new Section 23-23
is hereby enacted in lieu thereof, in words and figures, to
read as follows :
Sec . 23-23 . - Final approval required.
(1) Any stormwater management facility for which a
permit has been issued as a part of a
subdivision improvement plan must be included
with as-built drawings and certified to have
been constructed in conformance with the
approved drawings .
(2) Any stormwater management facility for which a
permit has been issued individually or as a part
of a site development plan must be included with
as-built drawings certified to have been
constructed in conformance with the approved
drawings prior to issuance of a certificate of
occupancy.
(3) The certification in a . and b. above must be by
a professional engineer licensed in Missouri or
a CPESC.
ARTICLE 9 . 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 .
ARTICLE 10 . It is the intention of the governing body
and it is hereby ordained that the provisions of this
ordinance shall become and be made a part of the Code of
Ordinances of the City of Cape Girardeau, Missouri, and the
sections of this Code may be renumbered to accomplish such
intention .
ARTICLE 11 . This ordinance shall be in full force and
effect ten days after its passage and approval .
PASSED AND APPROVED THIS \R AY OF 4.4) 4 2016 .
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Harry E. Rediger, Mayor
ATTEST:
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�ruce Ta or, Deputy City Clerk
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