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Permit MN RIOD061 (NPDES General Construction.. Pern it) issued: by the Minnesota Pollutant: Control Agency, .August 1, <br />.2008, and as amended. <br />MUNICIPAL SEPARATE STORM SEWER. SYSTEM.. (MSS!) - The system of conveyances. (Inciuding :sidewalks; roads: <br />with drainage systems,.municipal..streets, catrh.basins,.cuibs, gutters, ditches, man-made channels, or storm drains) owned <br />and operated.by the City of GemLake.and designed or used for collecting or conveying storm water, and.thats not used for <br />collecting .or conveying sewagc. <br />MURAL - A picture on theexterior.surface of.a structure. A mural is only a sign for purposes of these. regulations. if it is related <br />by language, :logo or pictorial depictionto the advertisement of any .product. or :sexvice or the identification of any business. <br />NATIONAL POLLUTANT :DISCHARGE ELIMINATION SYSTEM (NPDES) - means the program fox issuing, <br />modifying; revoking; reissuing; terminating; monitoring, and enforcing`petmits.,undex the Clean Water Act (Sections 301, :31.8, <br />402, grid 405) and United. States Code of Federal.Regulations TitleW, Sections. I31:7 1328,.1342, and 1345 and -Minnesota Rule <br />Chapter 7090. <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM .(NPDES.) STORM WATER DISCHARGE <br />PERMIT - A permit issued by EPA (or by a.State .under authoniy. delegated`pursuarit to 33 USG;§ 1342(b)) thatauthorizes <br />the discharge of pollutants to waters of the United; States, whether t e'- :- oQtis applicable on :an ivaiividual, .group, or general <br />area -wide basis - <br />NATURAL BARRIER Srxeening.pzor ded by a tree"ar. shrubb'er:b!4rier thatLact&:as a visual or noise barrier from roads, <br />railroads and differing laud. uses, said barrier tlot.to exceed, rharty (30) feet in barrier depth. Wbeu. a Natural Barrier is part of a . . <br />y�::: �}. <br />Woodland; the Natural Baxder_sl%al[''l e.considrred fiie.iirst (30. feeti'oftl e.Woodland <br />NON -DEGRADATION. - Section'3.03 .(Title`33:of United States Code [U.S.C] 1313) of the.Clean Water:Act (CWA) requires <br />states.and. authoxized:txiles to adnptwaterquaiity standaris for wai-ers:of the.U_S. within their applicable jurisdictions.to maintain <br />their chemical; pbysicai`aricl'lzolvcai integrity. No signdlcaiatinrr are lit stormwater runoff orpallutanf loads fxozia:20D5/2flOb <br />numerical standards :is permitted. <br />NON -POINT SOURCE -:Nutrient arid. pollution sources not discharged from a single point e.g. runoff from .agricultural <br />fields; feedlots or urban landscapes. <br />NON. -STORM WATER DISCHARGE -.Any discharge to. the storm drain systemthat is not composedentirely of storm <br />water. <br />NORMAL WATER LEVEL - For a: reservoir with a. Exed overflow,. means the lowest crest level of :that overflow. For a <br />reservoir whose outflow is controlled wholly or partly by movable gates, siphons or other means, .it.is. the maximum level to <br />which water. may rise under normal operating conditions, exclusive of any provision for :flood surcharge. For a closed depression <br />wetland, it is the ni2ximum level to which thewater may riseunder normal precipitation conditions exclusive of any provision <br />for flood surcharge. <br />NOXIOUS MATERIAL(S) Material capable of causing injury to living organisms by chemical reaction, or is capable of <br />causing. detrimental effects on the physical oz. ecoiaomic well-being of individuals. NURP — 11w Nationwide Utban Runoff <br />Program developed by the Environmental Protection Agency to study :stormwater.runoff from urban development <br />Updata.June 5, 2617 Appendix :A' <br />Gem Lake Consolidated Land Use Ordinance Definitions <br />Page 12 <br />