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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

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.


Sewer Construction Projects

Information about sewer construction projects underway in Portland

Wastewater Collection System

Portland's system serves over half a million customers

Watershed Revegetation Program

Natural areas, urban tree canopy, green stormwater infrastructure, invasive plants early detection

Public Works Permitting Process

Public works permits information and documents

Material Safety Data Sheets (MSDS) Index

Search the MSDS data base

Combined Sewer Overflow (CSO) Program

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