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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

More Contact Info

Engineering Services

The Engineering Services group manages maintenance, repair and expansion of Portland's wastewater collection system. The group manages the combined sewer overflow (CSO) program. Engineering Services reviews development plans, issues permits for connections to the City sewer system and manages stormwater runoff from private property. Engineering Services manages the capital improvement plan and oversees design and construction of capital projects. The Watershed Revegetation Division works with landowners to restore native vegetation to degraded stream bank and upland areas.

Combined Sewer Overflow (CSO) Control

East Side Big Pipe, Balch Consolidation Conduit, Cornerstone Projects, CSO Program Video, Rosie the TBM

Sewer Construction Projects

Information about Environmental Services sewer construction projects in Portland

Public Works Permitting Process

Public works permits information and documents

Material Safety Data Sheets (MSDS) Index

Search the MSDS data base

Branch CIPP Lining Temporary Administrative Rules

Temporary rules in effect as of November 1, 2014

Temporary Connection Permit Refund Rules

Temporary rules took effect on August 1, 2014