Oxnard seeks up to $2,995,711 to replace mechanical equipment on four sedimentation tanks

Oxnard City Council was asked to authorize up to $2,995,711 to replace mechanical equipment on four secondary sedimentation tanks at the Oxnard Water Resource and Recovery Facility, Public Works Assistant Director Tim Beaman said.

The request covers phase 2 of a multi‑phase project to replace worn mechanical equipment on the facility's 18 secondary sedimentation tanks. Beaman said the 2017 Public Works Integrated Master Plan identified the equipment as having exceeded its expected 25–30‑year useful life and in need of replacement.

Beaman presented a cost breakdown for the project: a construction agreement with GSE Construction Company Inc. in the amount of $2,496,425; a construction contingency of $249,643; and a project allocation of $249,642 for engineering, inspection, survey and project management, for a not‑to‑exceed total of $2,995,711. "The replacement of the mechanical equipment will be completed in phases due to system redundancy and ongoing construction at the facility," Beaman said.

Phase 1, which included tanks 17 and 18, has been completed. Phase 2 will include tanks 7, 8, 9 and 10 and is scheduled to begin in November 2025 with an expected duration of one year, Beaman said. The notice inviting bids was published July 17, 2025; two bids were received and GSE Construction Company Inc. was the lowest responsive bidder.

Beaman told the council that the project has an available budget balance of approximately $4,780,000 in the wastewater operating fund. The staff recommendation presented to the council asked that the council authorize the project funds and that the mayor be authorized to execute an agreement with GSE Construction Company Inc. The transcript does not record any council vote or final action on the recommendation.

Funding, schedule and tank selection were described as coordinated between engineering and operations staff. Beaman said tanks for each phase are selected to preserve facility redundancy and accommodate ongoing construction work. No additional agencies, permits, or external approvals were cited in the presentation.