Stormwater Source Control Ordinance & Inspection Program

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The City of Port Angeles is building a regulatory source control program that will require businesses to take measures to stop water pollution before it enters the stormwater system. The development of this program is a requirement of the Department of Ecology’s Western Washington Phase II Stormwater Permit.

The Department of Ecology's mandate will Stormwater Source Control1be met by creating an ordinance that requires businesses to address pollutants such as fertilizers, oil and grease, washwater, etc., that originate from daily business/site activities, spill incidents, improper disposal, or other indirect sources by implementing Best Management Practices (often called BMPs).

Polluted runoff from local businesses negatively impacts wildlife that depend on clean water. By stopping pollutants at the source, businesses can make a significant impact in preventing water pollution.

Who does this ordinance effect? 

Appendix 8 of the Western Washington Phase II Stormwater Permit lists businesses and activities that are potential sources of pollutants. Businesses within city limits that fall under the categories on this list will be mandatorily included in this program.

When will the proposed ordinance take effect?

Updates to municipal code are necessary to create a foundation for the new inspection-based regulatory program and are required by the Western Washington Phase II Stormwater Permit to be adopted and in-effect no later than August 1, 2022. 

Is the proposed ordinance language available for review? 


We want your feedback! A draft of the Stormwater Source Control Program code update is available online for review and public comment. Please click here to view and download the draft document.

Note for reviewers: Proposed new code language is in Red. Existing code language proposed for removal has been stricken‐through. Comments can be emailed to the City of Port Angeles at For consideration, please submit comments no later than May 27, 2022.

Applicable codes that are included in this update: Chapter 13.63 and Chapter 3.70.110. Chapter 13.63 is provided in its entirety here‐in, while only a subset of Chapter 3.70.110 has been included due to its long length and small proposed impact. If there are other sections of code that are relevant and should be updated with this effort, please bring those sections to our attention ASAP. To view the Port Angeles Municipal Code in its entirety, please click here.

What is stormwater?

When it rains or snows, water flows Stormwater Source Control2over hard surfaces such as roofs, streets, sidewalks. As the runoff travels to storm drains, ditches and pipes, it picks up pollutants along the way from metals, gasoline, sediment, pathogens and nutrients. Surface and stormwater runoff is the leading transporter of pollution into our local creeks and streams.

What are Source Control BMPs?

A business is considered the potential "source" of pollutants. Source control means the control of pollutants from entering storm and surface water.

Source control Best Management Practices (BMPs) are actions you can take in your business to help prevent or reduce pollutants from entering the stormwater system and polluting surface or ground water. There are three types of BMPs: operational, structural and treatment.

Operational BMPs are required of all pollutant generating businesses under this proposed ordinance. Common operational BMPs could include:

  • Sweeping
  • Labeling chemical containers with contents
  • Good housekeeping and spill prevention (spill kits, training)
  • Properly storing chemicals
  • Correctly disposing of wash water
  • Keeping dumpster lids closed and area free of trash
  • Correct disposal of hazardous waste

When operational BMPs are not effective, structural BMPs may be required. Common structural BMPs include:

  • Berms
  • Plastic sheeting
  • Oil/water separator
  • Herbicide/pesticide storage in a covered, dry container
  • Spill containment sump
  • Covering over dumpster enclosures
  • Paving

When structural BMPs are not effective, treatment BMPs may be required. Common treatment BMPs include:

  • Biofiltration swales
  • Filter strips
  • Conveyance of high potential oil spill areas to be directed to sanitary sewer, with an oil/water separator for pre-treatment

Full description of source control BMPs for each business activity can be found in Volume IV of the Department of Ecology's Stormwater Management Manual of Western Washington.