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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

More Contact Info

Certifying No Exposure

No Exposure Certification Form

for exclusion from NPDES Stormwater Permitting

EPA No Exposure Guidance

EPA guidance for certifying a condition of "no exposure"