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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

Apply for a Stormwater Permit

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


1200-Z Permit

General NPDES Permit for industrial facilities discharging stormwater to waters of the state.

Application for the Stormwater Permit

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

1200-COLS Permit

General NPDES Permit for industrial facilities discharging stormwater to the Columbia Slough

1200-COLS Guidance Factsheet

BES Compliance Guidance Factsheet for the new 1200-COLS Permit

1200-Z Guidance Factsheet

BES Compliance Guidance Factsheet for the new 1200-Z Permit

Who Needs a Permit?

Information about stormwater regulations and the types of facilities that require a NPDES Stormwater Discharge Permit.

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.

PortlandOregon.gov 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.