City of Santa Rosa PlanetBids #143781

Decommissioning and Pond Liner Construction at Laguna County Sanitation District WWTP

Santa Barbara County Public Works is seeking bids for the decommissioning of legacy facilities at the Laguna County Sanitation District Wastewater Treatment Plant in Santa Maria, California. - Government Buyer: - Santa Barbara County Public Works (Laguna County Sanitation District) - Project Scope: - Decommissioning and abandonment of legacy wastewater treatment facilities, including the trickling filter, headworks, grit chamber, and ancillary structures - Site clearing, grubbing, and demolition of obsolete infrastructure - Dewatering and subgrade stabilization using geogrid, crushed rock, and filter fabric (per Caltrans standards) - Installation of reinforced shotcrete or cast-in-place concrete liners for Pond A (1.4 acres) and the Storage Basin (2.2 acres), with specific thickness and slope requirements - Installation of pressure relief valves in concrete liners to mitigate uplift pressures from groundwater - Products/Materials Requested: - Concrete liners (reinforced shotcrete or cast-in-place) - Subgrade stabilization materials (crushed rock, dry sandy fill, geogrid, filter fabric) - Pressure relief valves (manufacturer-recommended) - Unique/Notable Requirements: - All work must follow detailed engineering and geotechnical specifications - Geotechnical recommendations must be incorporated, including mitigation of perched groundwater and uplift pressures - Liquidated damages apply as specified in the bid documents - No specific OEMs or vendors are named in the solicitation or attachments.

Description

This solicitation is for the decommissioning of legacy facilities at the Laguna County Sanitation District wastewater treatment plant. The scope includes abandoning the trickling filter, headworks, grit chamber, and other ancillary facilities according to provided plans and specifications. The project requires bids to be submitted in paper format and includes liquidated damages as detailed in the specifications. The work is managed by Santa Barbara County Public Works.

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