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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

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Upper Hillsdale Inflow and Infiltration Pilot Project

Environmental Services completed construction of the Upper Hillsdale Inflow and Infiltration Pilot Project in May 2014.

Upper Hillsdale project map