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<br />Prepared by: Bolton & Menk, Inc. MCM 3: ILLICIT DISCHARGE DETECTION AND ELIMINATION PLAN <br />Orono SWPPP ǀ 0C1.126140 Page 1 <br />II. MCM 3: ILLICIT DISCHARGE DETECTION AND ELIMINATION PLAN <br /> Introduction <br />The City of Orono’s Storm Water Pollution Prevention Program (SWPPP) Minimum Control <br />Measure (MCM) 3 addresses illicit discharge detection and elimination. The following plan <br />outlines the tools and procedures to be implemented to detect and eliminate sources of <br />pollution discharge from entering the municipality. <br />1. Party responsible for IDDE Plan implementation: Public Works Superintendent <br />2. Goals: <br />a) Improve water-quality in local waterways by reducing incidences of pollution. <br />b) Increase awareness among residents, municipal staff, businesses, and the public <br />of the direct connection between the storm drain system and local waterways. <br />c) Educate residents, municipal staff, businesses, and the public about the hazards <br />associated with illicit discharges and the best management practices (BMPs) <br />available. <br />d) Facilitate consistency in response to incidences of illegal discharges to the storm <br />drain system through a coordinated system of procedures and training of <br />municipal staff. <br />3. Examples of illicit discharge: <br />a) Direct or indirect sanitary wastewater discharges that connect to the storm sewer <br />or watercourse (i.e. shop floor drain connected to a storm drain, cross-connection <br />between sanitary sewer and storm sewer systems, damaged sanitary sewer line <br />leaking into a cracked storm sewer line, failing septic system leaking into a water <br />course, etc.). <br />b) Materials disposed of illegally into the storm drain system (i.e. used moter oil, <br />paint, grass clippings, etc.). <br />c) Activities resulting in illegal discharges routed to the storm drain system (i.e. <br />washing paint brushes, concrete washout, draining swimming pool directly to an <br />inlet, excess use of fertilizer, regular washing of vehicles, etc.). <br />4. Authorized Non-Stormwater Discharges: <br />a) Water line flushing, landscape irrigation, diverted stream flows, rising <br />groundwaters, uncontaminated groundwater infiltration (as defined at 40 CFR <br />35.2005(b)(20)), uncontaminated pumped groundwater, discharges from potable <br />water sources, foundation drains, air conditioning condensation, irrigation water, <br />springs, water from crawl space pumps, footing drains, lawn watering, individual <br />residential car washing, flows from riparian habitats and wetlands, dechlorinated <br />swimming pool discharges, street wash water, and discharges or flows from <br />firefighting activities. <br />5. Minimum elements, as set forth in MPCA Permit that provides Authorization to <br />Discharge Stormwater Associated with Small Municipal Separate Storm Sewer Systems <br />under the NPDES Program (Permit No. MNRO400000). <br />a) Municipal Storm Sewer System Mapping (Part 18.3)