Skip to Main Content View Text-Only

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

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

More Contact Info

Rules and Regulations

40 CFR 122 Definitions

To review definition of Waters of the State see Page 7

Who Needs a Permit?

Industry types required to have coverage under an NPDES permit

City Code Chapter 17.39

Discharges to the Municipal Storm Sewer

Washing Trucks, Vehicles or Equipment

DEQ rules on deminimis washing activities