Bids invited for Antioch Middle School Cooling Tower Replacement Project.

NOTICE INVITING BIDS ANTIOCH UNIFIED SCHOOL DISTRICT NOTICE IS HEREBY GIVEN that the Antioch Unified School District of Contra Costa County, California, acting by and through its Governing Board, hereinafter referred to as "District", will receive prior to 2:00 PM on the 19th day of May, 2026 sealed bids for the award of a Contract for the following: BID NO. 25-26-13 PROJECT: Antioch Middle School Cooling Tower Replacement Project All bids shall be made and presented only on the forms presented by the District. Bids shall be received in the Facilities Office of the District located at 701 W 18th Street, Antioch, California 94509 and all Bids shall be opened and publicly read aloud at the above stated time and place. The District's time clock shall govern and control the time for all bids to be received by the District and no other clock shall be used to determine the time when bids shall be received by the District in accordance with this Notice Inviting Bids. Any bids received after the time specified above or after any extensions due to material changes shall be returned unopened. The Contract Time is 57 calendar days (refer to Milestone Schedule). CONTRACTOR should consult the General Conditions, Supplementary Conditions, and General Requirements regarding Milestones and Liquidated Damages. Prequalification of Bidders As a condition of submitting a bid for this Project, and in accordance with California Public Contract Code section 20111.6, prospective bidders are required to submit to the District a completed set of prequalification documents on forms provided by the District. These documents will be the basis for determining which bidders are qualified to bid on this Project. Bids will not be accepted if a contractor has not been prequalified where prequalification is required. Prequalification instructions and/or documents are available through Quality Bidders' website at https://www.qualitybidders.com. Prequalification documents must be submitted by each contractor no later than ten (10) business days prior to the bid opening date. Contractors will be notified by Quality Bidders of their prequalification rating within a reasonable period of time after submission of their prequalification documents, but not less than five (5) business days prior to the bid opening date. If this Project includes work that will be performed by mechanical, electrical or plumbing ("MEP") subcontractors (contractors that hold C-4, C-7, C-10, C-16, C-20, C-34, C-36, C-38, C-42, C-43 or C-46 licenses), such MEP subcontractors must also be prequalified. A list of prequalified MEP subcontractors will be made available by the District to all bidders at least five business days prior to the bid opening date. It is the responsibility of the bidder to ensure that all MEP subcontractors holding any of the licenses listed above are properly prequalified before submitting a bid. This prequalification requirement applies even if the subcontractor will perform, or is designated to perform, work that does not require one of the licenses listed above, but the subcontractor holds one of the licenses listed above. Miscellaneous Information Bids shall be received in the place identified above, and shall be opened and publicly read aloud at the above-stated time and place. The Contract Documents, including but not limited to all Bid Documents, are available at Antioch Unified School District. It is the responsibility of each prospective bidder to obtain all Contract Documents for review and to verify the completeness of all Contract Documents before submitting a Bid. It is the responsibility of each prospective bidder to check with the District on a daily basis through the close of bids for any applicable Addenda or updates. The District does not assume any liability or responsibility based on any defective or incomplete copying, excerpting, scanning, faxing, downloading or printing of the Contract Documents or any Bid Documents. There will be a mandatory Pre-Bid Job Walk on May 13, 2026 at 2:00 PM at the Front Entry to the Antioch Middle School Campus (1500 D St, Antioch, CA 94509). Any Contractor bidding on the Project who fails to attend the entire mandatory job walk and conference will be deemed a non-responsive bidder and will have its bid returned unopened. Each bidder shall be a licensed contractor pursuant to the California Business and Professions Code, and be licensed to perform the work called for in the Contract Documents. The successful bidder must possess a valid and active Class B License at the time of bid and throughout the duration of this Contract. The Contractor's California State License number shall be clearly stated on the bidder's proposal. Subcontractors shall be licensed pursuant to California law for the trades necessary to perform the Work called for in the Contract Documents. Each bid must strictly conform with and be respon sive to the Contract Documents as defined in the General Conditions. The District reserves the right to reject any or all bids or to waive any irregularities or informalities in any bids or in the bidding. Each bidder shall submit with its bid on the form furnished with the Contract Documents a list of the designated subcontractors on this Project as required by the Subletting and Subcontracting Fair Practices Act, California Public Contract Code section 4100 et seq. In accordance with California Public Contract Code section 22300, the District will permit the substitution of securities for any moneys withheld by the District to ensure performance under the Contract. At the request and expense of the Contractor, securities equivalent to the amount withheld shall be deposited with the District, or with a state or federally chartered bank as the escrow agent, who shall then pay such moneys to the Contractor. Upon satisfactory completion of the Contract, the securities shall be returned to the Contractor. Each bidder's bid must be accompanied by one of the following forms of bidder's security: (1) cash; (2) a cashier's check made payable to the District; (3) a certified check made payable to the District; or (4) a bidder's bond executed by a California admitted surety as defined in Code of Civil Procedure section 995.120, made payable to the District in the form set forth in the Contract Documents. Such bidder's security must be in an amount not less than ten percent (10%) of the maximum amount of bid as a guarantee that the bidder will enter into the proposed Contract, if the same is awarded to such bidder, and will provide the required Performance and Payment Bonds, insurance certificates and any other required documents. In the event of failure to enter into said Contract or provide the necessary documents, said security will be forfeited. The Contractor and all subcontractors shall comply with the requirements set forth in Division 2, Part 7, Chapter 1 of the Labor Code. The District has obtained from the Director of the Department of Industrial Relations the general prevailing rate of per diem wages and the general prevailing rate for holiday and overtime work in the locality in which this work is to be performed for each craft, classification or type of worker needed to execute the Contract. These per diem rates, including holiday and overtime work, as well as employer payments for health and welfare, pension, vacation, and similar purposes, are on file at the District, and are also available from the Director of the Department of Industrial Relations. Pursuant to California Labor Code section 1720 et seq., it shall be mandatory upon the Contractor to whom the Contract is awarded, and upon any subcontractor under such Contractor, to pay not less than the said specified rates to all workers employed by them in the execution of the Contract. A contractor or subcontractor shall not be qualified to bid on, be listed in a bid proposal, subject to the requirements of Section 4104 of the Public Contract Code, or engage in the performance of any contract for public work, as defined in the Labor Code, unless currently registered and qualified to perform public work pursuant to Labor Code section 1725.5. It is not a violation of this section for an unregistered contractor to submit a bid that is authorized by Section 7029.1 of the Business and Professions Code or by Section 10164 or 20103.5 of the Public Contract Code, provided the contractor is registered to perform public work pursuant to Section 1725.5 at the time the contract is awarded. All payroll records as detailed in Labor Code �1776 of the Contractor and all Subcontractors shall be certified and furnished directly to the Labor Commissioner in accordance with Labor Code �1771.4(a)(3) once every thirty (30) days while Work is being performed on the Project and within thirty (30) days after the final day of Work performed on the Project (or more frequently if required by the District or the Labor Commissioner). The Contractor and all Subcontractors shall submit their own payroll records to the Labor Commissioner on the internet website of the Department of Industrial Relations and such payroll records shall be in an electronic format prescribed by the Labor Commissioner. Monitoring and enforcement of the prevailing wage laws and related requirements will be performed by the Labor Commissioner/ Department of Labor Standards Enforcement (DLSE). Each Bidder shall comply with all In-Use Off-Road Diesel-Fueled Fleets Regulations (the "Fleets Regulation") implemented by the California Air Resources Board ("CARB") which apply broadly to all self-propelled off-road diesel vehicles 25 horsepower or greater and other forms of equipment used in California. Bidders are required to comply with all CARB orders and Fleets Regulation requirements, including, without limitation, all applicable sections of the Fleets Regulation, as codified in Title 13 of the California Code of Regulations section 2449 et seq. throughout the duration of the Project. Bidders must provide, with their Bid, copies of the Bidder's and all listed subcontractors' most recent and valid Certificate(s) of Reported Compliance ("CRC") issued by the CARB. Any Bidder's failure to provide valid CRCs as required herein may render such Bidder's Bid non-responsive. Additionally, any Bidder's failure to complete and submit the enclosed Fleet Compliance Certification form with its Bid, may render such Bid non-responsive. No bidder may withdraw any bid for a period of ninety (90) calendar days after the date set for the opening of bids. Separate payment and performance bonds, each in an amount equal to 100% of the total Contract amount, are required, and shall be provided to the District prior to execution of the Contract and shall be in the form set forth in the Contract Documents. All bonds (Bid, Performance, and Payment) must be issued by a California admitted surety as defined in California Code of Civil Procedure section 995.120. Where applicable, bidders must meet the requirements set forth in Public Contract Code section 10115 et seq., Military and Veterans Code section 999 et seq. and California Code of Regulations, Title 2, Section 1896.60 et seq. regarding Disabled Veteran Business Enterprise ("DVBE") Programs. Forms are included in this Bid Package. Any request for substitutions pursuant to Public Contract Code section 3400 must be made at the time of Bid on the Substitution Request Form set forth in the Contract Documents and included with the bid. No telephone or facsimile machine will be available to bidders on the District premises at any time. It is each bidder's sole responsibility to ensure its bid is timely delivered and received at the location designated as specified above. Any bid received at the designated location after the scheduled closing time for receipt of bids shall be returned to the bidder unopened. ECT 6964859 May 1, 8, 2026