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  5. ›Thickeners No. 3 and No. 4 Overflow Line Replacement Project

California Union Sanitary District·California

Thickeners No. 3 and No. 4 Overflow Line Replacement Project

Closes 11/6/2025$400k – $500kInvitation for BidLogin required
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Description

The Union Sanitary District is seeking bids for the Thickeners No. 3 and No. 4 Overflow Line Replacement Project. The project involves replacing the buried overflow pipe from Thickener No. 3 and Thickener No. 4, tying in to the 30” Recycle line, and installing a vent on Thickener No. 4 overflow standpipe. The project also includes field verification work, preparation and submittal of Record Drawings and Record Specifications, and other related tasks. The successful bidder will have 125 calendar days to complete the project from the Notice to Proceed. • Replacement of the buried overflow pipe from Thickener No. 3 and Thickener No. 4 • Tie in to the 30” Recycle line • Vent installation on Thickener No. 4 overflow standpipe • Field verification work • Preparation and submittal of Record Drawings and Record Specifications The project requires the contractor to complete the work items indicated in the Contract Documents, including but not limited to the above tasks.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Lauren Russell(Project Manager)

[email protected]

(510) 477-7609

Key dates

Opened
9/30/2025
Questions due
10/24/2025
Pre-bid meeting
10/7/2025
Closes
11/6/2025
Duration
125 days

Last updated

Details

Type
Invitation for Bid
Industry
Utilities and Waste Management
NAICS
237110
Solicitation №
800-618

Budget estimate

$400,000 – $500,000

Based on the Engineer’s Estimate for this Project, which is $450,305, the budget for the project is likely to be around this amount, assuming the contractor completes all the required work and meets the project specifications. However, the actual budget could vary depending on various factors such as changes in the project scope, unforeseen site conditions, and other factors that may impact the project costs.

AI estimate from the solicitation

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