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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

Rules and Regulations

City Code Chapter 17.39

Discharges to the Municipal Storm Sewer

Who Needs a Permit?

Industry types required to have coverage under an NPDES permit

Washing Trucks, Vehicles or Equipment

DEQ rules on deminimis washing activities

40 CFR 122 Definitions

To review definition of Waters of the State see Page 7

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.