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1 (ii) Any drain or conveyance connected from a residential, commercial or industrial land use to the
<br />2 storm drain system which has not been documented in plans, maps, or equivalent records and
<br />3 approved by the City.
<br />4 8. IMPERVIOUS SURFACE: A hard surface area which either prevents or retards the entry of water
<br />5 into the ground. Common impervious surfaces include, but are not limited to, roof tops, walkways,
<br />6 patios, driveways, parking lots or storage areas, concrete or asphalt paving, gravel roads, packed
<br />7 earthen materials, or other surfaces which similarly impede the natural infiltration of surface and storm
<br />8 water runoff.
<br />9 9. MAXIMUM EXTENT PRACTICABLE (MEP): A standard for water quality that applies to all MS4
<br />10 operators regulated under the NPDES program. Since no precise definition of MEP exists, it allows for
<br />11 maximum flexibility on the part of MS4 operators as they develop and implement their programs to
<br />12 reduce the discharge of pollutants to the maximum extent practicable, including management
<br />13 practices, control techniques and system, design and engineering methods, and such other provisions
<br />14 as the Administrator or the State determines appropriate for the control of pollutants.
<br />15 10. MECHANICAL CLEANING TECHNIQUES: Arranging the collision between the substance being
<br />16 removed and some object. Mechanical cleaning techniques include: sweeping, shoveling, or blowing.
<br />17 This does NOT include using water to clean the surface.
<br />18 11. MPCA: The Minnesota Pollution Control Agency.
<br />19 12. MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4): The system of conveyances
<br />20 (including sidewalks, roads with drainage systems, municipal streets, catch basins, curbs, gutters,
<br />21 ditches, channels, or storm drains) owned and operated by the City and designed or used for collecting
<br />22 or conveying storm water, and which is not used for collecting or conveying sewage.
<br />23 13. NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES): The national
<br />24 program for issuing, modifying, revoking, and reissuing, terminating, monitoring, and enforcing
<br />25 permits, and imposing and enforcing pretreatment requirements under sections 307, 3 ] 8, 402, and 405
<br />26 of the Clean Water Act, United States Code, title 33, sections 1317, 1328, 1342, and 1345.
<br />27 14. PERSON: Any individual, firm, corporation, partnership, franchise, association or governmental
<br />28 entity.
<br />29 15. PERVIOUS SURFACE: Pervious areas permit water to enter the ground by virtue of their porous
<br />30 nature or by large voids in the material. Commonly pervious areas have vegetation growing on them.
<br />31 16. POLLUTANT: Any substance which, when discharged has potential to or does any of the following:
<br />32 (i) Interferes with state designated water uses;
<br />33 (ii) Obstructs or causes damage to waters of the state;
<br />34 (iii) Changes water color, odor, or usability as a drinking water source through causes not attributable to
<br />35 natural stream processes affecting surface water or subsurface processes affecting groundwater;
<br />36 (iv) Adds an unnatural surface film on the water;
<br />37 (v) Adversely changes other chemical, biological, thermal, or physical condition, in any surface water or
<br />38 stream channel;
<br />39 (vi) Degrades the quality of groundwater; or
<br />40 (vii) Harms human life, aquatic life, or terrestrial plant and wildlife; A Pollutant includes but is not
<br />41 limited to dredged soil, solid waste, incinerator residue, garbage, wastewater sludge, chemical waste,
<br />42 biological materials, radioactive materials, rock, sand, dust, industrial waste, sediment, nutrients,
<br />43 toxic substance, pesticide, herbicide, trace metal, automotive fluid, petroleum-based substance,
<br />44 wastewater, and oxygen-demanding material.
<br />45 17. POLLUTE: To discharge pollutants into waters of the state.
<br />46 18. POLLUTION: The direct or indirect distribution of pollutants into waters of the state.
<br />47 19. PREMISES: Any building, lot, parcel of land, or portion of land whether improved or unimproved
<br />48 including adjacent sidewalks and parking strips
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