Chiller Replacement at Linus Pauling

Contra Costa County Division of Public Works is requesting sealed bids for replacement of four rooftop packaged chiller units at 151 Linus Pauling Drive, Hercules, California, with bids due October 21, 2026 at 2:00 p.m. and a mandatory pre-bid conference and job site visit on September 9, 2026 at 10:00 a.m. The project carries prevailing wage requirements applicable to public works.

The scope is replacement of four rooftop packaged chiller units integrated with the existing building management system. The prime contractor must hold a valid California Class B General Building Contractor license and be registered with the Department of Industrial Relations per Labor Code Section 1725.5. Site access for inspection is limited to the September 9 mandatory pre-bid date only due to facility restrictions.

The estimated base bid construction contract cost is $2,966,094. Bid security equal to ten percent of the base bid amount is required in the form of cash, certified check, cashier's check, or bid bond payable to The County of Contra Costa. The successful bidder must furnish a Payment Bond and Faithful Performance Bond, each in an amount equal to 100 percent of the contract price, secured from an admitted surety insurer authorized to transact business in California. Bids may not be withdrawn for 60 days following the bid opening date.

The County encourages participation by Minority Business Enterprises, Women Business Enterprises, Small Business Enterprises, Local Business Enterprises, and Disabled Veterans Business Enterprises, though no set-aside or participation goal is stated. Technical questions must be submitted in writing to Margaret.Thorp@pw.cccounty.us no later than 3:30 p.m. on September 21, 2026. Drawings and specifications are available through the Contra Costa County Public Works Department's Online Planroom at www.cccounty.us/cpmprojects for a non-refundable $75 service charge, with additional shipping charges applicable.