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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br /> STORMWATTR DISCHARGE PERMIT. A permit issued by the Minnesota Pollution <br /> Control Agency that authorizes the discharge of pollutants to the waters of the state . <br /> NATIONWIDE URBAN RUNOFF PROGRAM (NURP) . Urban Runoff Program <br /> developed by the Environmental Protection Agency to study stormwater runoff from <br /> urban development . <br /> ORDINARY HIGH WATER LEVEL (OHWIJ. . The highest water level elevation that <br /> has been maintained for a sufficiently long period of time to leave evidence upon the <br /> landscape . The OHWL is commonly that point where the natural vegetation changes <br /> from predominantly aquatic to predominantly terrestrial . If an OHWL has been <br /> established for a waterbody by the Minnesota Department of Natural Resources , it will <br /> constitute the OHWL under this definition . <br /> OWNER. The person or party possessing the title of the land on which the <br /> construction activities will occur ; or if the construction activity is for a lease , easement , <br /> or mineral rights license holder , the party or individual identified as the lease , easement , <br /> or mineral rights license holder ; or the contracting government agency responsible for <br /> the construction activity . <br /> POLLUTANT. A substance that pollutes something , especially water or the <br /> atmosphere . <br /> PUBLIC LINEAR PROJECT. A project involving a roadway , sidewalk , trail or utility <br /> not part of an industrial , commercial , institutional or residential development . <br /> RECONSTRUCTION . Removal of an impervious surface such that the underlying <br /> structural aggregate base is effectively removed and the underlying native soil exposed . <br /> REGIONAL FLOOD . A flood which is representative of large floods known to have <br /> occurred generally in Minnesota and reasonably characteristic of what can be expected <br /> to occur on an average frequency in the magnitude of the 1 % chance or 100 - year <br /> recurrence interval . REGIONAL FLOOD is synonymous with the term BASE <br /> FLOOD used in the Flood Insurance Study . <br /> SEASONAL HIGH WATER TABLE . The highest known seasonal elevation of <br /> groundwater as indicated by redoximorphic features such as mottling within the soil . <br /> hit fho r� ro � onGo of rnnffled one , iroS OrrW( fhawO r 1nfnrm :4fiWnn_ <br /> SEDIMENT CONTROL . Methods employed to prevent sediment from leaving the <br /> site . SEDIMENT CONTROL practices include silt fences , sediment traps , earth dikes , <br /> drainage swales , check dams , subsurface drains , pipe slope drains , storm drain inlet <br /> protection , and temporary or permanent sedimentation basins . <br /> SHORELAND . Land located within the following distances from the ordinary high <br /> water elevation of public waters : <br /> 8 <br />