Source identification Sample Clauses

Source identification. (1) A description of the historic use of ordinances, guidance or other controls that limited the discharge of nonstormwater discharges to any publicly owned treatment works serving the same area as the municipal separate storm sewer system. (2) A USGS 7.5 minute topographic map (or equivalent topographic map with a scale between 1:10,000 and 1:24,000, if cost effective) extending one mile beyond the service boundaries of the municipal storm sewer system covered by the state permit application. The following information shall be provided: (a) The location of known municipal storm sewer system outfalls discharging to surface waters; (b) A description of the land use activities (e.g., divisions indicating undeveloped, residential, commercial, agricultural, and industrial uses) accompanied with estimates of population densities and projected growth for a 10-year period within the drainage area served by the separate storm sewer. For each land use type, an estimate of an average runoff coefficient shall be provided; (c) The location and a description of the activities of the facility of each currently operating or closed municipal landfill or other treatment, storage or disposal facility for municipal waste; (d) The location and the state permit number of any known discharge to the municipal storm sewer that has been issued a state permit; (e) The location of major structural controls for stormwater discharge (retention basins, detention basins, major infiltration devices, etc.); and (f) The identification of publicly owned parks, recreational areas, and other open lands;