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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204

More Contact Info

Stormwater Permit Info

General NPDES Permit and related materials for stormwater discharges associated with industrial activity in Portland.


Application for the 1200-Z Permit

Includes forms and instructions to obtain coverage under the 1200-Z General NPDES Stormwater Permit

1200-Z Compliance Guidance Fact Sheet

BES Compliance Guidance Fact Sheet for the 1200-Z Permit

1200-Z Permit Reissued

The current permit was effective Aug. 1, 2017, reissued upon consideration on Oct. 22, 2018 and expires on July 31, 2022.