|
(2) All drainage structures within underground parking shall
<br />include an anti-backflow device to prevent stormwater
<br />from surcharging into the area.
<br />Emergency overflow swales or areas shall be constructed to
<br />convey the peak 100-year discharge from each water body
<br />to the next downstream water body and away from
<br />buildings.
<br />8. Minimum Protection for Rivers, Lakes and Wetlands -Rivers, streams,
<br />lakes, and wetlands shall be protected from runoff generated during
<br />construction and after completion of the development. Runoff shall not
<br />be discharged directly into wetlands without appropriate quality and
<br />quantity runoff control, depending on the individual wetland's vegetation.
<br />Wetlands must not be drained or filled, wholly or partially, unless
<br />replaced by either restoring or creating wetland areas of at least equal
<br />public value. Compensation, including the replacement ratio and quality
<br />of replacement should be consistent with the requirements outlined in the
<br />Board of Water and Soil Resources rules that implement the Minnesota
<br />Wetland Conservation Act 1991 including any and all amendments to it.
<br />a. Buffer protection for Rivers, Streams, Lakes, and Wetlands -
<br />Buffers shall meet those required by the Watershed District
<br />guidelines. The City may allow buffer area averaging in cases
<br />where averaging will provide additional protection to either the
<br />resource or environmentally valuable adjacent upland habitat,
<br />provided that the resources total buffer area remains the same.
<br />Care should be taken in averaging so that the buffers usefulness is
<br />not short circuited. Detailed buffer design is site specific, and
<br />therefore, the City can require a larger buffer than the minimum
<br />specified.
<br />C. Stormwater and Urban Runoff Pollution Control
<br />Illegal Disposal
<br />a. No person shall throw, deposit, place, leave, maintain, or keep or
<br />permit to be thrown, placed, left, maintained or kept, any refuse,
<br />rubbish, garbage, or any other discarded or abandoned objects,
<br />articles, or accumulations, in or upon any street, alley, sidewalk,
<br />storm drain, inlet, catch basin conduit or drainage structure,
<br />business place, or upon any public or private plot of land in City,
<br />so that the same might be or become a pollutant, except in
<br />containers, recycling bags, or other lawfully established waste
<br />disposal facility.
<br />b. No person shall intentionally dispose of grass, leaves, dirt, or other
<br />landscape debris into a water resource buffer, street, road, alley,
<br />Stormwater Ordinance 928- 12
<br />
|