Clean Water Services provides consistent guidance and technical assistance to keep industrial users in compliance with federal regulations. Our regional wastewater treatment facilities, located throughout urban Washington County, allow flexibility when locating a new industrial site. Learn more about our program, requirements and limits in our Pretreatment Brochure (PDF, 614KB). Our Source Control department is here to help, contact us at or 503.681.5175.


Pretreatment Regulations

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Hazardous Waste Notification

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