TO: Napa-Vallejo Waste Management Authority Board of Directors
FROM: Chris Celsi, Executive Director
REPORT BY: Chris Celsi, Executive Director
SUBJECT: Agreement No. 2026-03 Construction & Demolition Facility Project No. 17810

RECOMMENDATION
title
Executive Director requests the following actions related to Construction & Demolition Facility Project No. 17810:
1. Approve the Plans and Specifications for Construction & Demolition Facility Project;
2. Award Construction Contract No. 2026-03 for Construction & Demolition Facility Project to the lowest bidder, Modern Building Inc. in the amount of $30,212,690.97.
3. Authorize the Chair to sign Construction Contract 2026-03 with Modern Building Inc.;
4. Authorize the Executive Director to issue change orders to the contract in accordance with Public Contract Code section 20142, in an amount not to exceed $210,000 per change order; and
5. Authorize the Executive Director to file a Notice of Completion with the County Recorder upon successful completion of the project.
body
EXECUTIVE SUMMARY
The Napa-Vallejo Waste Management Authority (Authority) proposes to construct a new facility for processing Construction and Demolition (C&D) waste materials at its Devlin Road Transfer Station (DRTS) Facility in American Canyon. The goals of this project are:
1. To enable DRTS to provide additional processing capability and increase recovery of recyclable material. This will:
Help meet diversion goals.
Help increase revenue from recycling.
2. To move the current outdoor C&D processing operation into a dedicated building in order to:
Decrease environmental impacts by containing noise, dust and odors,
Improve the overall safety for its site personnel and customers,
Reduce the potential for pollutants to enter the storm drain system,
Improve traffic circulation and reduce wait time, and
Enhance the surrounding neighborhood by limiting the view of the operation by the public.
The planned operational improvements will enable DRTS to increase recovery of recyclables and diversion of additional materials for reuse and other beneficial re-purposing.
On June 3, 2025, the Authority received seven bids for the construction of a new Construction & Demolition (C&D) Facility at the Devlin Road Transfer Station. Bids ranged from $31.8 million to $38.0 million. On July 21, 2025, the Board rejected all bids at staff’s request due to concerns with the lowest bid and potential issues with the bid documents identified by various parties, which have since been addressed.
The C&D Facility Project was re-advertised for bid on July 24, 2025 and July 31, 2025 in the Napa Valley Register and Vallejo Times Herald, as well as the County’s Public Works website. A project site walk-through was conducted at various dates, but most recently on August 7, 2025, and ten bids were submitted and opened on August 26, 2025. The lowest bid received was from Modern Building, Inc. with a total bid amount of $30,212,690.97. The Engineer's Estimate was $32,000,000.
Staff recommends approval of Plans and Specifications and award of the contract for the Construction and Demolition Facility, No. 17810, to Modern Building, Inc. in the amount of $30,212,690.97. Plans and Specifications and bid results are available at:
https://www.countyofnapa.org/bids.aspx?bidID=446
This action will also authorize the Executive Director to issue change orders to the contract, up to $210,000 per change order pursuant to Public Contract Code section 20142. Any change order larger than this amount will need approval from the Board.
FISCAL & STRATEGIC PLAN IMPACT
Is there a Fiscal Impact? |
Yes |
Is it currently budgeted? |
Yes |
Where is it budgeted? |
Account 8101000 |
Is it Mandatory or Discretionary? |
Discretionary |
Discretionary Justification: |
Will improve dust control, stormwater quality, recycling efficiency, safety and aesthetics. |
Is the general fund affected? |
Yes |
Future fiscal impact: |
Will have an impact on our yearly revenue surplus for approximately the next fifteen years. |
Consequences if not approved: |
The C&D Facility would not be built, therefore environmental and diversion would be impacted. |
ENVIRONMENTAL IMPACT
ENVIRONMENTAL DETERMINATION: On August 6, 2020, the Authority adopted the Final IS/Addendum, the mitigation measures and the mitigation monitoring program for the Project pursuant to Resolution No. 2021-02. This subsequent discretionary approval related to the Project does not involve any change in circumstances, project changes, or new information of substantial importance which would warrant further environmental review pursuant to CEQA Guidelines section 15162.