Bid Notice.pdf
PDF 107 KB Posted
- Solicitation number
- 46T090
- Issued by
- San Mateo County, San Francisco City, California
About this file
This is a Bid Notice issued by the City of San Mateo, California for the cleaning and interior surface preparation of an existing anaerobic digester (Digester 1) to support inspection and condition assessment. The project scope includes mobilization and demobilization, removal and offsite disposal of all digester contents, high-pressure washing of all interior surfaces, design and installation of interior scaffolding for confined-space access, and abrasive blasting of all interior surfaces. An optional bid item covers screening and transfer of digester contents to Digester 2 down to approximately 15 feet above the cone bottom. Sealed bids are due July 16, 2026 at 2:00 p.m. The contract duration is 130 working days from the Notice to Proceed. Subsequent repair and coating will be performed under a separate contract. Contractors may provide temporary on-site dewatering systems to reduce liquid volume prior to offsite disposal.
Bidders must hold California Class A Contractor licenses and be registered with the Department of Industrial Relations under Labor Code Section 1725.5. The estimated construction cost is $1,100,000 provided for reference only. All work is subject to California prevailing wage requirements as determined by the Department of Industrial Relations and must comply with non-discrimination requirements under federal and state law. Bid bonds, cashier's checks, or certified checks in an amount not less than ten percent of the aggregate bid amount must accompany all bids. A five percent retention will be held for 35 days after the Notice of Completion is recorded; contractors may substitute securities or request direct payment to an escrow agent at their expense. The City reserves the right to reject any or all bids and to award the contract to the lowest responsible bidder. All addenda issued during the bidding period must be acknowledged in the bid submission. Plans and specifications are available through Barker Blue via the City of San Mateo Public Works Bidding Web Portal.
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Other files
| File | Type | Posted |
|---|---|---|
| Bid Notice-Biogas and Biosolids Evaluation Digester 1 Cleaning.pdf |
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Bid Title: Biogas and Biosolids Evaluation: Digester 1 Cleaning
Category: ALL OPEN BID REQUESTS
Status: Open
Description:
See the Bid notice, Barker Blue web link (to acquire the contract book, plans, and proposal forms), and the Contract book (for viewing purposes only; proposers must purchase from Barker Blue to bid on the project) in the "Related Documents" section below. It is the bidders responsibility to check back on the website for any addendums that may have been issued.
Publication Date/Time:
9/16/2026 8:00 AM
Closing Date/Time:
10/14/2026 2:00 PM
Contact Person:
Jennifer Lam, Project Manager Email: jlam@cityofsanmateo.org
Related Documents:
Biogas and Biosolids Evaluation Digester 1 Cleaning Project Biogas and Biosolids Evaluation Digester 1 Cleaning Project Barker Blue link
Return To Main Bid Postings Page
Notice inviting sealed proposals
Biogas and biosolids evaluation: Digester 1 cleaning project
NOTICE INVITING SEALED PROPOSALS
BIOGAS AND BIOSOLIDS EVALUATION: DIGESTER 1 CLEANING PROJECT
CITY PROJECT NO. 46T090
CITY OF SAN MATEO, CALIFORNIA
1. Sealed Bids will be received by the City Council of the City of San Mateo, California, for the BIOGAS AND BIOSOLIDS EVALUATION: DIGESTER 1 CLEANING Project No. 46T090 as described in this Contract Book and shown on the plans. The Work described requires that the Bidder be licensed by the State of California as a Class A Contractor.
2. Project Description: The proposed work is as follows: The project consists of the cleaning and interior surface preparation of one (1) existing anaerobic digester (Digester 1) to support inspection and condition assessment. Subsequent repair and coating will be performed under a separate contract. The Owner will execute safe shutdown, pre-draining, and gas purging of the digester. Contractor will remove and dispose offsite all remaining digester contents, high-pressure wash all interior surfaces, erect interior scaffolding, and prepare the interior surfaces for inspection and condition assessment, with subsequent repair and coating to be performed under a separate contract. The Contractor may, at their option, provide temporary on-site dewatering systems to reduce liquid volume prior to offsite disposal.
3. Bidder shall purchase a complete set of Plans and Specifications and provide contact information through Barker Blue in order to be eligible to bid on this Project. The Contract Book, plans and proposal forms are available at City of San Mateo – Public Works Bidding Web Portal.
Bidders can also email Barker Blue’s Customer Support Team at plans@barkerblue.com or call 650-696-2100 for assistance. Any questions regarding the Contract Documents should be directed to Jennifer Lam, Project Manager, in writing to jlam@cityofsanmateo.org.
4. The estimated construction cost of this Package is $1,100,000. This estimate is not based on a “Contractor’s cost take off” of the Project, but is derived from an averaging of costs for work on similar projects in the area of which the City is aware. This figure is given to indicate the relative order of magnitude of this Project and is not intended to influence or affect in any way the amount of the Bid for this Project.
5. All Bids shall be accompanied by a Bid bond, cashier’s check, or certified check made payable to the City of San Mateo in an amount not less than ten percent (10%) of the aggregate amount of the Bid.
6. Bidder is notified that it shall comply with the requirements for Non-Discrimination as set forth in United States Code, Title 23, Section 112, Public Contract Code, Section 7106, and Section 00 50 00, Agreement.
7. Addenda issued during the time of bidding shall become a part of the documents furnished Bidders for the preparation of Bids, shall be covered in the Bids, and shall be made a part of the Contract. If an addendum is available, a notice will be posted on the City’s Public Works, Bids & Proposals website with instructions on how to obtain a copy (www.cityofsanmateo.org/bids.aspx). Each Bid shall include specific acknowledgement in the space provided of receipt of all Addenda issued during the bidding period. Failure to so acknowledge may result in the Bid being rejected as not responsive. Failure of any Bidder to receive such Addenda shall not be grounds for non-compliance with the terms of the i t ti It i th ibilit f th Bidd t t t th Cit t d t i th i t
Close × https://www.cityofsanmateo.org/list.aspx?Mode=Subscribe#bids https://www.cityofsanmateo.org/bids.aspx?bidID=886&PRINT=YES https://www.cityofsanmateo.org/bids.aspx?bidID=886&PRINT=YES https://www.cityofsanmateo.org/DocumentCenter/View/107190 https://www.cityofsanmateo.org/DocumentCenter/View/107191 https://www.cityofsanmateo.org/bids.aspx mailto:plans@barkerblue.com mailto:jlam@cityofsanmateo.org http://www.cityofsanmateo.org/bids.aspx
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