# Clackamas County Bidlocker #2026-78

Aeration Basin Improvements at Tri-City Water Resource Recovery Facility

**Posted:** October 07, 2026
**Respond By:** November 10, 2026
**Identifier:** 2026-78
**NAICS:** 237990

Clackamas County is seeking bids for aeration basin improvements at the Tri-City Water Resource Recovery Facility in Oregon City.
- **Government buyer:** Clackamas County, on behalf of Water Environment Services.
- **Requested work:** Construction and related improvements to the facility’s aeration basin; detailed scope is in the bidding documents.
- **Estimated project value:** $3.7 million.
- **OEMs and vendors:** No manufacturers, OEMs, or vendors are identified. The notice provides no product quantities or part numbers.
- **Notable requirements:** Prevailing wage requirements apply.

### Description

Clackamas County, on behalf of Water Environment Services, is seeking bids for improvements to the Tri-City Water Resource Recovery Facility (WRRF) aeration basin. The engineer’s estimated value is $3,700,000. Bids must be submitted electronically through Bid Locker by November 10, 2026, at 2:00 PM Pacific Time; email submissions are not accepted. A mandatory pre-bid conference is scheduled for October 21, 2026, at 1:00 PM at the Tri-City WRRF Administration Building in Oregon City, Oregon. Prevailing wage requirements apply.

[View original listing](https://bidlocker.us/a/clackamascounty/details/6571_2026_78_Bid_Tri_City_Water_Resource_Recovery_Facility_Wrrf_Aeration_Basin_Improvements)