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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

Batch Discharges

The Industrial Pretreatment Program issues batch discharge permits to businesses and projects that are required to discharge wastewater to the sanitary sewer system. Any discharges to the storm system are forwarded to the appropriate agencies. The discharges are typically of limited duration and related to a specific site and operation. Examples include construction dewatering, grey water from concession activities, and building power washing.

The authorization to discharge is contingent on meeting city limits and not contributing to a sewer overflow. There are specific limits to volume, rate of discharge and a "dry weather only" provision.

  • Click here to download the Batch Discharge Application. 

Completed applications can be sent by email or mail.

BY EMAIL (preferred method):

Industrial Permitting Section – BES
Attn: Batch Discharge Program
Water Pollution Control Laboratory
6543 N. Burlington Avenue
Portland, OR 97203-5452

For more information, questions or comments, please contact the Industrial Permitting Section of Environmental Services at or call 503-823-7026.