The following requirements shall be met on all sites:
(A) Sediment trapping. Sediment laden water flowing from the site shall be detained by temporary sediment basins or other suitable control measures. Water may not be discharged in a manner that causes
erosion of the site or receiving channels or an accumulation of sediment within the receiving channel or its outlets;
(B) Waste and materials disposal. All waste and unused building materials including, but not limited to, garbage, debris, cleaning wastes, wastewater, toxic materials, and hazardous substances shall be properly disposed of and not allowed to be carried by runoff into a receiving channel or storm sewer system;
(C) Tracking. Prior to the land disturbing activity, each site shall have graveled access drives or other approved systems of sufficient width and length to eliminate sediment being tracked onto public or private roadways. Gravel access drives shall be maintained by acceptable methods. Flushing is not an acceptable method;
(D) Temporary stream crossings. A stream crossing during land disturbing activities shall be non-erosive, structurally stable, and shall not contribute to flooding or safety hazards. Streams should be crossed at right angles to the stream flow. Erosion control measures shall be employed and shall be appropriate to the expected life of the crossing. Temporary crossings must convey full flow or a 2-year peak discharge, whichever is less. Overflow areas must be protected from erosion for a 10-year peak flow;
(E) Sediment removal. Public or private roadways shall be cleaned daily and after major storms using acceptable methods to remove any accumulated sediment. The developer's contractors are responsible for supervision of the construction activity within the development and shall take all necessary actions to remove sediment from the streets. Appreciable sediment should be placed and stabilized properly and protected from returning onto the road or into the storm water system;
(F) Drain inlet protection. All storm drain inlets shall be protected with straw bales, filter fabric, or equivalent barriers meeting accepted design criteria, standards and specifications. Curb inlet protection measures that trap sediment within pavement areas are prohibited;
(G) Site erosion and sediment control. The following items apply only to the time period when land disturbing activities are taking place which may cause water and sediment to leave the site;
(1) Runoff passing through the site from adjacent areas shall be minimized by protecting the existing channel or, if necessary, diverting it around disturbed areas if legal, feasible, and practical;
(2) On the site, runoff from the entire disturbed area shall be controlled by meeting the following:
(a) All disturbed ground left inactive for 7 or more days shall be stabilized by seeding, sodding, mulching, or by other equivalent erosion control measures; and
(b) For sites having less than 10 acres disturbed at one time, silt fences, straw bale dams, or equivalent erosion control measures shall be placed along all sloping perimeters where erosion and sedimentation could occur. If a channel or an area of concentrated runoff passes through the site, silt fences shall be placed along the channel edges to reduce the amount of sediment reaching the channel.
(3) Where drainage areas are too large or runoff volumes are too great for sediment trapping practices, 1 or more sediment basins should be constructed. Each sediment basin should have a sufficient depth and a sufficient surface area to trap the sediment. The discharge rate or velocity from a basin should be sufficiently low so as to not cause erosion or the receiving channel shall be adequately protected.
(H) Top soil stockpiling. During cut and fill operations top soil shall be stockpiled and respread on final grades where vegetation is to be established; and
(I) Soil stockpiling. Excess soil that is stored to be used at a later date must be stockpiled and protected from erosion.
(Ord. passed 10-11-2004)