Memorial Day closure

Most City of Portland offices will be closed Monday, May 25. Recreation centers may be open, check before you go.

Portland and the federal government

Learn about our sanctuary city status, efforts to block federal overreach: Portland.gov/Federal

Annual Report FY2023 – Combined Sewer Overflow (CSO) and Capacity, Management, Operation, and Maintenance (CMOM)

Annual Report FY2023 – Combined Sewer Overflow (CSO) and Capacity, Management, Operation, and Maintenance (CMOM)6.15 MB
Report
This annual report documents the performance of the CSO control and treatment system and CMOM program activities during FY2023. The report summarizes major storm events that caused CSOs and examines wet weather treatment performance at the plant. This report is required by the plant's NPDES permit.
Updated

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