Since February of 2007, discharges from the City’s storm sewers (MS4) has been permitted by the Western Washington Phase II Municipal Stormwater National Pollutant Discharge Elimination System (NPDES) Permit. This permit requires some 99 cities and 11 counties statewide, to implement a Stormwater Management Program (SWMP) structured around the following:
Controlling runoff from development, redevelopment, and stormwater facilities.
Educating, engaging, and involving the public
Identify and remove illicit discharges and connections
Reducing contaminated runoff from municipal operations
All construction and disturbance of land must conform to guidelines in Section 17.80 of the Longview Municipal Code, and typically requires a review and/or permit.