Municipal Stormwater Permit


Eugene, like many other cities and counties throughout the United Sates, is required by the federal Clean Water Act to obtain a stormwater permit, referred to as a National Pollutant Discharge Elimination System (NPDES) permit. The permit is aimed at protecting and improving water quality in our local creeks and rivers. In Eugene, that includes Amazon Creek and the Willamette River. The permit authorizes the City of Eugene to discharge stormwater runoff from the municipal stormwater system and includes a set of required best management practices (described in a Stormwater Management Plan) and water quality monitoring requirements. In Oregon, the NPDES permitting program is administered by the Department of Environmental Quality (DEQ).

On September 15, 2021, DEQ renewed the City of Eugene's municipal stormwater permit. The new permit went into effect on October1, 2021. The City will continue to implement all of the Stormwater Management Plan (SWMP) best management practices developed under the previous permit and has begun working on program revisions, as needed, in order to implement the new permit. The current SWMP will remain in effect until DEQ approves the Stormwater Management Program Document required by the new permit. The updated SWMP Document will be available on this web site for public review and input in fall 2022. 

  1. Current Stormwater Permit & Monitoring Plan
  2. Annual Reports
  3. Water Quality Data
  4. Other  Documents & TMDL Reports