City of Fairfield
Public Works Department
Mankas Blvd Distribution Main Replacement
NAME OF PROJECT
November 20, 2025, 2:00 p.m.
DATE OF BID
NO. BIDDER AMOUNT
1 R.J. Gordon Construction, Inc Pleasant hill $981,803.80 2 Subterra Construction San Francisco $1,177,520.00
3 A3 Pipeline San Francisco $1,211,555.00
4 Argonaut Constructors, Inc Santa Rosa $1,217,800.00
5 Team Ghilotti, Inc Petaluma $1,231,417.00
6 Weber General Engineering Dixon $1,233,000.00
7 WestRock Engineering San Francisco $1,293,610.00
8 Koios Engineering Inc San Francisco $1,296,645.00
9 Soracco Inc Lodi $1,430,989.00
Engineer’s Estimate $1,550,000
*Note: This bid summary shows the bids in order as opened but is not a determination of award, responsiveness, or responsibility of bids received. The values computed are values based on Staff’s interpretation of the bids, correction of mathematical errors and assumptions made where ambiguous and/or illegible entries are encountered during the review process.