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Page 34 of 38 Permit No: MNR040000 11. "Existing Permittee" means an Owner/Operator of a small MS4 that has been authorized to discharge stormwater under a previously issued general permit for small MS4s in the state of Minnesota. 12. "General permit" means a permit issued under Minn. R. 7001.0210 to a category of permittees whose operations, emissions, activities, discharges, or facilities are the same or substantially similar. (Minn. R. 7001.0010, subp.4.) 13. "Geographic Coordinate" means the point location of a stormwater feature expressed by X, Y coordinates of a standard Cartesian coordinate system (i.e. latitude/longitude) that can be readily converted to Universal Transverse Mercator(UTM),Zone 15N in the NAD83 datum. For polygon features, the geographic coordinate will typically define the approximate center of a stormwater feature. 14. "Green Infrastructure" means a wide array of practices at multiple scales that manage wet weather and that maintains or restores natural hydrology by infiltrating, eva potra nspi ring, or harvesting and using stormwater. On a regional scale, green infrastructure is the preservation or restoration of natural landscape features, such as forests, floodplains and wetlands, coupled with policies such as infill and redevelopment that reduce overall imperviousness in a watershed. On the local scale, green infrastructure consists of site and neigh bo rhood-specific practices, such as bioretention, trees, green roofs, permeable pavements and cisterns. 15. "High Flow Bypass" means a function of an inlet device that allows a certain flow of water through, but diverts any higher flows away. High flow bypasses are generally used for BMPs that can only treat a designed amount of flow and that would be negatively affected by higher flows. 16. "Illicit Discharge" means any discharge to a municipal separate storm sewer that is not composed entirely of stormwater except discharges pursuant to a NPDES permit(other than the NPDES permit for discharges from the municipal separate storm sewer) and discharges resulting from firefighting activities. (40 CFR § 122.26(b)(2)) 17. "Impaired Water" means waters identified as impaired by the Agency, and approved by the USEPA, pursuant to section 303(d) of the Clean Water Act (33 U.S.C. § 303(d)). 18. "Maximum Extent Practicable" or"MEP" means the statutory standard (33 U.S.C. § 1342(p)(3)(B)(iii))that establishes the level of pollutant reductions that an Owner or Operator of Regulated MS4s must achieve.The USEPA has intentionally not provided a precise definition of MEP to allow maximum flexibility in MS4 permitting.The pollutant reductions that represent MEP may be different for each small MS4, given the unique local hydrologic and geologic concerns that may exist and the differing possible pollutant control strategies. Therefore, each permittee will determine appropriate BMPs to satisfy each of the six Minimum Control Measures (MCMs)through an evaluative process.The USEPA envisions application of the MEP standard as an iterative process. 19. "Municipal separate storm sewer system"or"MS4" means a conveyance or system of conveyances including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man- made channels, or storm drains: a. owned or operated by a state, city,town, county, district, association, or other public body, created by or pursuant to state law, having jurisdiction over disposal of sewage, industrial