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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

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. The discharges are typically of limited duration and related to a specific site and operation. Examples include construction de-watering, 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 Request Form.
  • Fax completed request forms to:

City of Portland

Industrial Source Control Division

Attn: Batch Discharge Authorization

FAX: 503-823-5559


  • Or, email request forms to:


For More Information

Contact Ann O'Roke at 503-823-7230.

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. 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.