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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Suite 1000, Portland, OR 97204

Industrial Pretreatment Rules and City Code


Industrial Wastewater Discharges Administrative Rules

City Code Chapter 17.36.110

Extra-Strength Wastewater Discharges

City Code Chapter 17.34.070

Industrial Wastewater Discharge Permits

Heartbleed Security Notice

A serious security vulnerability known as "Heartbleed" was recently discovered in OpenSSL, a popular software library commonly used by many websites on the internet to encrypt communication between a user's computer and a web server. is NOT affected by this vulnerability as it does not use the OpenSSL software library. Please rest assured we are dedicated to protecting your security on this website.