NPDES Annual Reports
National Pollutant Discharge Elimination System (NPDES) Annual Reports are submitted to the Oregon Department of Environmental Quality (DEQ) by November 1st of each year. They cover activities for the time period July 1st of the previous year through June 30th of the same year.
The Annual Report summarizes the accomplishments and implementation status of our Stormwater Management Plan (SWMP). Total Maximum Daily Load (TMDL) Progress Reports are submitted to DEQ at the same time.
Oregon City's Annual Reports and TMDL Progress Reports are listed below. Please note: beginning in 2012 the TMDL Progress Report is incorporated into the Annual Report as Appendix D.
You can read more about the NPDES process and TMDL requirements on the NPDES Documents Page.