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Storm sewer: A system of pipes (separate from sanitary sewers) that carry only water runoff from building and land surfaces.
storm sewer : A sewer that collects and transports surface runoff to a discharge point (infiltration basin, receiving stream, treatment plant).
Any discharge to a municipal separate storm sewer system that is not composed entirely of storm water, except for discharges allowed under an NPDES permit or waters used for certain emergency situations.
IMPACTED STREAM OR SUBWATERSHED ...
URBAN RUNOFF: Water from an urban area that neither infiltrates the soil nor is consumed, but flows into a storm sewer or open waterway.
permit authorized by the Clean Water Act, Title IV, which is required for discharge of pollutants to navigable waters of the United States, which includes any discharge to surface waters-lakes, streams, rivers, bays, the ocean, wetlands, storm sewer, ...
 See also: Treatment, Environment, Sewer, Water, Soil
  
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