State Permit Requirements

The Washington State Department of Ecology implements the Federal Clean Water Act. Because of this federal law, the Department of Ecology issues two general permits relating to stormwater. The first general permit is the Industrial Stormwater General Permit. This permit is required for certain industrial activities that cause stormwater runoff which could adversely impact the surface waters of the State. The second permit is the Construction Stormwater General Permit. The goal of the this permit is to reduce or eliminate stormwater pollution and other impacts to surface water from construction sites.