R2003-14 AUTHORIZING FILING - Laserfiche WebLink

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' r • �« Page 2 BACKGROUND: In 1990, the United States Environmental Protection Agency(USEPA) established Phase I of the National Pollutant Discharge Elimination System (NPDES) storm water program. NPDES Phase I required the operators of inedium and large MS4s (generally with populations over 100,000) to implement a storm water management program to control pollutant discharges from their separate storm sewer systems. Phase II of the NPDES program extends the requirements for storm water control to communities or entities referred to as small MS4s. Small MS4s include cities, universities, hospitals, military bases, departments of transportation, etc. In all, over 5,000 communities nationwide are required to meet the new storm water regulations and must be covered under a storm water permit as of March 10, 2003. Local entities that have been notified of needing to meet NPDES Phase II storm water requirements include: the City of Decatur, Macon County, the Village of Farsyth, the Village of Mt. Zion and the Village of Harristown. The Illinois Department of Transportation is also covered under the Phase II requirements. Over the past five months, City staff has worked with representatives from Macon County, Forsyth, Mt. Zion and Harristown in preparing the attached NOI. The Illinois Environmental Protection Agency (IEPA) has been designated by the USEPA to administer the NPDES permit in Illinois. To this end, the IEPA has issued a state wide permit, , General NPDES Permit No. ILR40 (attached hereto), that regulates discharges from municipal separate storm sewer systems. By submitting the Notice of Intent, the City is informing the IEPA ' (1) that it intends to be covered under the state wide permit and; (2) the management programs that the City intends to put in place over the next five years to meet the permit requirements. The National Pollutant Discharge Elimination System requires separate storm sewer system owners / operators to implement storm water management programs (termed "Best Management Practices (BMPs)" in the permit) that encompass the following minimum control measures: 1. Public education and outreach on storm water impacts. This control measure requires the City to inform and educate the public on storm water issues. 2. Public involvement/ participation. This control measure requires the City to allow for public participation in storm water issues addressed by the City. 3. Illicit discharge detection and elimination. This control measure requires the City to detect and eliminate illicit discharges (non storm water discharges) from the separate storm sewer system. 4. Construction site storm water runoff control. This control measure requires the City to develop, adopt and enforce erosion and sediment control regulations for construction activities. 5. Post-construction storm water management in new development and redevelopment. This control measure requires the City to develop, adopt and enforce regulations on storm water discharges from new development or redevelopment sites.