2004-06-01 P & Z Packet - Laserfiche WebLink

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2. For sites with more than 3 acres disturbed at one time, or if a channel originates in the disturbed area, one or more temporary or permanent sedimentation basins shall be constructed. Each sedimentation basin shall have a surface area of at least 1 % of the area draining to the basin and at least three (3) feet of depth and constructed in accordance with accepted design specifications. Sediment shall be removed to maintain a depth of three (3) feet. The basin discharge rate shall also be sufficiently low as to not cause erosion along the discharge channel or the receiving water. . 3. For sites with less than 10 acres disturbed at on time, silt fences, straw bales, or equivalent control measure shall be placed along all side slope and down slope sides of the site. If a channel or area of concentrated runoff passes through this site, silt fences shall be placed along the channel edges to reduce sediment reaching the channel. The use of silt fences, straw bales, or equivalent control measure must include a maintenance and inspection schedule. (d.) If remaining for more than seven (7) days, they shall be stabilized by mulching, vegetative cover, tarps or other means. Erosion from piles which will be existence for less than seven (7) days shall be controlled by placing straw bales or silt fence barriers around the pile. In-street utility repair or construction soil or dirt storage piles located closer than 25 feet or a roadway or drainage channel must be covered with tarps or suitable alternative control, if exposed for more than seven (7) days, and the storm drain inlets must be protected with straw bale or other appropriate filtering barriers. Subd.7. Storm Water Management Criteria for Permanent Facilities. Storm water management criteria for permanent facilities shall be in conformance with the City's current Storm Water Management Plan. Subd. 8. Design Standards. Storm water detention facilities constructed in the City of Centerville shall be designed in conformance with the City's current Storm Water Management Plan and Rice Creek Watershed District and other pertinent agencies regulations. Subd.9. Wetlands. Wetlands shall be maintained and protected in conformance with the City's current Storm Water Management Plan. Subd.l0. Steep Slopes. No land disturbing or development activities shall be allowed on slopes of 18% or more.