2008-03-27_REVISION - M2003016 (5)

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APPENDIX A -SWMP (cont.) Page B-3 The SWMP Administrator becomes the contact for all SWMP-related issues and is the person responsible for its accuracy, completeness, and implementation. Therefore, the SWMP Administrator should be a person in an authoritative position. Lazger facilities may want to develop a "SWMP team" in order to share the resFonsibilities and generate greater awareness and participation. b) Materials Handlirrx and Spill Prevention -Where materials can impactstorrnwater runoff, BMPs that reduce the potential for contamination shall be described. For example, materials should be stored and handled in covered areas whenever possible to prevent contact with stormwater; fuels acrd other chemicals should be stored witlein berms or secondary containment devices to prevent leaks and spills from enteriragstormwater runoff. When selecting BMPs, the most important ones to evaluate first are those which limit the source of the pollutant. It is much more efficient, from both a cost and environmental standpoint, to prevent the pollution in the first place than to clean up contanunated stormwater. Por example, a BMP requiring that any vehicle maintenance that involves fluid exchange must take place indoors, results in the removal of a pollutant source (i.e, oil/hydraulic fluids) from possible contact with stomtwater. Good housekeeping measures, such as cleaning and maintenance schedules, trash disposal and collection practices, grounds maintenance, etc., can be included here. e) Erosion and Sediment Controls - Describe BMPs that will be used to reduce erosion mrd prevent sediment delivery to State waters. These should include structural (such as silt fences, sediment ponds, drop struck+res, check dams) and non- structural (such as mulching and revegetatiorr) methods. BMPs can describe a wide range of management procedures, schedules of activities, prohibitions or practices and other management practioes. BMPs can include operating procedures, h~eatment requirements and practices to control plant site runoff, drainage from raw materials storage, spills or leaks. Nonstructural BMPs are mainly definitions of operational or managerial techniques. Structural BMPs include physical processes ranging from diversion structures to oiUwater separators to retention ponds. The BMPs selected are up to the judgment of the individual permittee. However, it is important to note that a fully implemented SWMP will constitute compliance with Best Available Technology (BAT) and Best Conventional Technology (BCT), as mandated under the 1?ederal Clean Water Act. This means that, in order to comply with your permit, the appropriate measures must be taken in keeping with the pollutant(s) involved and the risk potential at the facility. d) Identification ofD.ischar~es other than stormwater - The stormwater conveyance system on the site shall be evaluated for the presence of discharges other than stormwater, such as mine drainage, spoil springs, sanitary waste, or process water of nny kind. The SWiI1P shall include a description of the results of any evaluation for the presence of discharges odrer than stormwater, the method used, the date of the evad+ation, and the on-site drainage points that were directly observed during• the evaluation. A r:umber of discharges other lhm: stnrrnwater may Trot require a CDPS Lrdustria! Wastewater Discharge permit and are considered Allowable Non-StormwaterDischarges. Flows from fire fighting activities, landscaping irrigation return flow nr springs (except spoil springs) that are combined will: stormwater discharges associated with industrial activity must be identified in the SWMP. In other words, only stormwater can be conveyed by the stormwater drainage system. Examples of potential illicit connections include floor drains and toilets in maintenance buildings, chemical storage buildings, etc. There are several medrods of determining whether or not illicit connections exist. Acceptable procedures include dry weather observations of outfalls or other appropriate locations, analysis and validation of accurate piping schematics, dye tests, etc. Note - if illicit connectiots are discovered, corrective measures must be taken.