The City of Lake Stevens operates its stormwater program under the National Pollutant Discharge Elimination System (NPDES) Phase II Permit. The permit is regulated by the Washington State Department of Ecology as an extension of Federal requirements under the Clean Water Act. The name of the Washington State Permit is the Western Washington Phase II Municipal Stormwater Permit. The current permit term was initially five years, beginning on August 1, 2013 and ending on July 31, 2018. In 2017 the Ecology announced that the current permit will be extended an additional year.
A link to the Western Washington Phase II Municipal Stormwater Permit can be found by clicking below: