Draw a map of the site and facilities noting points of discharge(outfalls), runoff patterns, direction of runoff flow, surface water bodies, structural control measures, locations of significant material that may enter runoff, and locations of industrial activities like loading areas, fueling areas, waste disposal areas, etc.
An inventory must be taken of the types of materials stored, handled, or processed at the facilities. These materials may range from gasoline, to paints, to solvents used.
These materials need to be listed and located, with emphasis on any that have been exposed to storm water in the last three years.
Any past spills or leaks of toxic or hazardous materials that have occurred in the past 3 years in excess of reportable quantities under CERCLA and the Clean Water Act limits.
Certification is needed that the facility has been evaluated for non-storm water discharges. Examples of non-storm water discharges include any water used directly in the manufacturing process, air conditioner condensate, vehicle wash water, or non contact cooling water. To evaluate the site, you can use any one of these dry weather tests: dye testing, visual inspection, or a plant schematic review.
Narratively describe any activities that may contribute to storm water pollution and what pollutants are present in these areas.