CIP PW 22-36 ASR WELL INJECTION EQUIPPING

CITY OF LATHROP NOTICE INVITING BIDS - NOTICE TO CONTRACTORS

The City of Lathrop (“City”), will accept sealed bids for the construction of public improvements for its ASR WELL INJECTION EQUIPPING, CIP PW 22-36. (“Project”), at City of Lathrop, California (“City”). Sealed bids will be received at the office of the City Clerk of the City of Lathrop, located at 390 Towne Centre Drive, Lathrop, CA until Wednesday, January 21, 2026 at 2 PM. Bids submitted by mail shall be addressed to: City of Lathrop, Attention City Clerk, 390 Towne Centre Drive, Lathrop, CA 95330 and conform to Submission of Bids standards within this Section. The bids will be publicly opened and read at Wednesday, January 21, 2026 at 2 PM.

Bidders considering bidding on this project must attend the mandatory pre-bid meeting to be held on Tuesday, January 6, 2026, at 10 AM at 390 Towne Centre Drive, Lathrop, CA 95330.

The Project is located southeast of the intersection of West Stewart Road and Cirrus Court, Lathrop California. The work to be performed under this contract is generally described as, but not necessarily limited to the construction of aquifer storage and recovery (ASR) well injection equipping improvements, including: connection to an existing City drinking water main, installation of yard piping, modifications to existing storage tank inlet piping, construction of a concrete wellhead, installation of wellhead mechanical improvements, construction of a “chemical canopy” steel structure, installation of wellhead treatment chemical systems (carbon dioxide and sodium hypochlorite), installation of electrical and instrumentation facilities, and commissioning of the Work. This contract also includes ongoing well-backflushing, testing, and water quality sampling for a period of 12 months following completion of the wellhead improvements.

DIR Registration. Bidder must submit proof of DIR Registration with Bid Proposal, no exceptions. Pursuant to Labor Code Section 1725.5, all Subcontractors identified in a Bidder’s Subcontractors’ List shall be DIR Registered Contractors. If awarded the Contract for the Work, at all times during performance of the Work, the Bidder and all Subcontractors, of any tier, shall be a DIR Registered Contractors

The City of Lathrop does not sell copies of the plans and specifications, but they may be purchased through ARC at https://www.e-arc.com/location/stockton/. Select Order from Planwell, then Public Planroom. Locate the project by searching the Public Planroom for “Lathrop”. ARC Stockton’s location may be contacted to order plans and specifications by phone: (209) 464-8724, or e-mail: stk.branch@e-arc.com.

Each Bid Proposal submitted to the City must be submitted in accordance with the instructions and requirements provided in the Instructions to Bidders.

All communications related to the City’s administration of this work shall be directed to Greg Gibson, PE, Senior Civil Engineer, at ggibson@ci.lathrop.ca.us, or by calling the Public Works Department at (209) 941-7430.