Holiday closure

Most City of Portland offices will be closed Monday, May 30, to observe Memorial Day.

Environmental Services is moving information to Portland.gov

To find information not yet moved, visit the Environmental Services pages on portlandoregon.gov. BES employees may also visit the BES Employee Site.

Contech StormFilter with ZPG Media

Contech StormFilter with ZPG Media(519.83 Kb)

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Background, conditions, project designer responsibilities, and document update history for Contech Engineered Solutions, LLC's StormFilter with ZPG Media technology.

Updated December 11, 2020 4:38 pm

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Contech StormFilter with ZPG Media

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City of Portland, Oregon