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-COLS Permit
General NPDES Permit for industrial facilities discharging stormwater to the Columbia Slough
Application for the Stormwater Permit
Includes forms and instructions to obtain coverage under the 1200-Z or 1200-COLS General NPDES Stormwater Permit.
Who Needs a Permit?
Information about stormwater regulations and the types of facilities that require a NPDES Stormwater Discharge Permit.
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
1200-Z Permit
General NPDES Permit for industrial facilities discharging stormwater to waters of the state.