102 contracts that the Sonoma and Napa County Boards of Supervisors approved or have on an agenda, meetings in the last 90 days and upcoming, quoting the agenda item. Every item links to the official agenda or minutes.
$2.0M maxMeeting Oct 6, 2026
Errol L. Montgomery & Associates, Inc.
Sonoma Valley Groundwater Sustainability Agency
Sonoma County Board of Supervisors · Sonoma County Water Agency
On the agendaSonoma County, CA
17. Modeling and Technical Support Services for Groundwater Sustainability Agencies 2026-0970 Authorize Sonoma County Water Agency’s General Manager or designee to execute the Third Amended and Restated Agreement for Modeling and Technical Services Support for Santa Rosa Plain, Sonoma Valley, and Petaluma Valley Groundwater Sustainability Agencies with Errol L. Montgomery & Associates, Inc., in substantially the form as the draft presented to this Board. The amended agreement increases the amount by $256,370 and expands the scope of work to include supplemental assistance with periodic evalua…
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$374,028Meeting Oct 6, 2026
Roebbelen Contracting, Inc.
Award of Construction Contract for the Wildlife Exclusion Perimeter Fence Phase 2 -
Sonoma County Board of Supervisors · Public Infrastructure · Category 2389 Other specialty trade contractors (inferred)
On the agendaSonoma County, CA
B) Find Diamond D Construction LLC’s bid non-responsive and award the construction contract to the lowest responsive and responsible bidder, Roebbelen Contracting, Inc., in the amount of $374,028.40 including the base bid and bid alternate 1.
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Amount not statedMeeting Oct 6, 2026
McCarthy Building Companies, Inc.
preconstruction phase services for the proposed new County Government Center
Sonoma County Board of Supervisors · Public Infrastructure · Category 2362 Nonresidential building construction (inferred)
On the agendaSonoma County, CA
A) Award a contract for Construction Manager at Risk (“CMAR”) to McCarthy Building Companies, Inc. (“McCarthy”) for preconstruction phase services for the proposed new County Government Center (“CGC”) project (“Project”), and delegate authority to the Director of the Department of Public Infrastructure to execute the contract in a form approved by County Counsel.
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Amount not statedMeeting Oct 6, 2026
Sonoma County Fair and Exposition, Inc.
Amendment to Agreement with Sonoma County Fair and Exposition, Inc.
Sonoma County Board of Supervisors · County Executive's Office
On the agendaSonoma County, CA
9. Amendment to Agreement with Sonoma County Fair and Exposition, Inc. 2026-1053 Authorize the Chair to execute an amendment to the agreement with Sonoma County Fair and Exposition, Inc. extending the term from September 30, 2027, to September 30, 2031, with no other changes to the agreement. Department or Agency Name(s): County Executive's Office
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$457,649 maxMeeting Sep 29, 2026
GHD, Inc.
additional construction management and inspection services for the “Wastewater Ponds Groundwater Inflow Mitigation Project, LB 18-02.”
Napa County Board of Supervisors · Lake Berryessa Resort Improvement District · Category 5413 Architecture, engineering & inspection (inferred)
On the agendaNapa County, CA
K. Approve and authorize Amendment No. 4 to Agreement No. 240306B (LBRID) with GHD, Inc. to increase the contract amount by $16,000 increasing total compensation from $441,649 to $457,649 to provide additional construction management and inspection services for the “Wastewater Ponds Groundwater Inflow Mitigation Project, LB 18-02.” (Fiscal Impact: $16,000 Expense, Lake Berryessa Resort Improvement District; Budgeted; Discretionary) 26-1665 AgreementAttachments:
View the agenda → · Agreement 240306B
$250,000Meeting Sep 29, 2026
City of Napa
joint water quality monitoring of the Lake Hennessey and Milliken Reservoir watersheds
Napa County Board of Supervisors · Planning, Building and Environmental Services (PBES)
On the agendaNapa County, CA
M. Approve and authorize Amendment No. 3 to Agreement 200194B with the City of Napa to extend the term through June 30, 2029, with no change to the contract maximum, for joint water quality monitoring of the Lake Hennessey and Milliken Reservoir watersheds. (Fiscal Impact: $250,000 Expense; General Fund; Budgeted; Discretionary) 26-1710 AgreementAttachments:
View the agenda → · Agreement 200194B
$88,375 maxMeeting Sep 29, 2026
GovernmentJobs.com, Inc.
Approve and authorize Agreement No. 270093B to replace original
Napa County Board of Supervisors · Information Technology Services – Division of CEO’s Office
On the agendaNapa County, CA
J. Approve and authorize Agreement No. 270093B to replace original 2006 Agreement No. 170151B with GovernmentJobs.com, Inc., (dba “NEOGOV”) for a new three-year term through June 30, 2029; for a maximum amount of $88,375. (Fiscal Impact: $88,375 Expense; Information Technology Services Fund; Budgeted; Discretionary). 26-1722 AgreementAttachments:
View the agenda → · Agreement 270093B
$60,000Meeting Sep 29, 2026
Self Insured Services Company d.b.a. Benefit Coordinators Corporation
specialized services related to the Consolidated Omnibus Budget Reconciliation Act
Napa County Board of Supervisors · Human Resources – Division of CEO’s Office
On the agendaNapa County, CA
I. Approve and authorize Amendment No. 1 to Agreement No. 230412B with Self Insured Services Company d.b.a. Benefit Coordinators Corporation, to provide specialized services related to the Consolidated Omnibus Budget Reconciliation Act (COBRA) administration and leave of absence/retiree billing, effective July 1, 2026. (Fiscal Impact $60,000 Expense; Budgeted; Discretionary) 26-1082 AgreementAttachments:
View the agenda → · Agreement 230412B
$2.1M maxMeeting Sep 15, 2026
City of American Canyon
construction services, inspections and materials testing for the South Kelly Road and Tower Road Paving Project, RDS 25-16
Napa County Board of Supervisors · Public Works · Category 2373 Highway, street & bridge construction (inferred)
ApprovedNapa County, CA
Q. Approve and authorize Agreement No. 270159B with the City of American Canyon for a maximum of $2,149,156 for construction services, inspections and materials testing for the South Kelly Road and Tower Road Paving Project, RDS 25-16; and
View the minutes → · Agreement 270159B
$1.9MMeeting Sep 15, 2026
SoCal Pacific dba National Coating and Lining
the Sonoma Tank No. 1 Recoating Project
Sonoma County Board of Supervisors · Sonoma County Water Agency · Category 2383 Painting & coating contractors (inferred)
ApprovedSonoma County, CA
B) Award the contract to SoCal Pacific dba National Coating and Lining for $1,894,140 for the Sonoma Tank No. 1 Recoating Project and authorize the Chair to execute the contract.
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$500,000 maxMeeting Sep 15, 2026
Kleinfelder, Inc.
geotechnical services
Sonoma County Board of Supervisors · Sonoma County Water Agency, Occidental County Sanitation · Category 5413 Architecture, engineering & inspection (inferred)
ApprovedSonoma County, CA
B) Authorize Sonoma County Water Agency’s General Manager acting on behalf of Sonoma County Water Agency, Occidental County Sanitation District, Russian River County Sanitation District, Sonoma Valley County Sanitation District, and South Park County Sanitation District to execute an agreement with Kleinfelder, Inc., in substantially the form presented to this Board, for geotechnical services through June 30, 2031, in the not-to-exceed amount of $500,000. Department or Agency Name(s): Sonoma County Water Agency, Occidental County Sanitation
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$500,000 maxMeeting Sep 15, 2026
Geologic Associates, Inc.
geotechnical services
Sonoma County Board of Supervisors · Sonoma County Water Agency, Occidental County Sanitation · Category 5413 Architecture, engineering & inspection (inferred)
ApprovedSonoma County, CA
A) Authorize Sonoma County Water Agency’s General Manager acting on behalf of Sonoma County Water Agency, Occidental County Sanitation District, Russian River County Sanitation District, Sonoma Valley County Sanitation District, and South Park County Sanitation District to execute an agreement with Geologic Associates, Inc., in substantially the form presented to this Board, for geotechnical services through June 30, 2031, in the not-to-exceed amount of $500,000.
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$470,380Meeting Sep 15, 2026
American Road Maintenance
Award of Construction Contract for the Apron E and Portions of Runway 14/32
Sonoma County Board of Supervisors · Public Infrastructure · Category 2373 Highway, street & bridge construction (inferred)
ApprovedSonoma County, CA
B) Award the construction contract to the lowest responsive and responsible bidder, American Road Maintenance, in the amount of $470,380.
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$367,700 maxMeeting Sep 15, 2026
Nacht & Lewis Architects, Inc.
construction support services for the Fifth Street Garage and Napa Library Maintenance Project, PW 25-13
Napa County Board of Supervisors · Public Works · Category 5413 Architecture, engineering & inspection (inferred)
ApprovedNapa County, CA
S. Approve and authorize Amendment No. 2 to Agreement No. 250313B with Nacht & Lewis Architects, Inc., to increase the contract maximum amount from $330,900 to $367,700 to provide construction support services for the Fifth Street Garage and Napa Library Maintenance Project, PW 25-13. (Fiscal Impact: $36,800 Expense; Library Fund; Budgeted; Discretionary) Enactment No: A-250313B Amend. 2
View the minutes → · Agreement 250313B
$303,535 maxMeeting Sep 15, 2026
Gaya Coating Consulting Inc.
coating inspection services
Sonoma County Board of Supervisors · Sonoma County Water Agency · Category 5413 Architecture, engineering & inspection (inferred)
ApprovedSonoma County, CA
D) Authorize the General Manager of the Sonoma County Water Agency to execute an agreement with Gaya Coating Consulting Inc., in substantially the form as the draft presented to this Board, for coating inspection services through March 30, 2028, in the not-to-exceed amount of $303,535. (2/3rd Vote Required) (First District) Department or Agency Name(s): Sonoma County Water Agency
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$242,575 maxMeeting Sep 15, 2026
Byrne Software Technologies, Inc.
professional services to configure and automate the Conditions of Approval Monitoring records for Groundwater and other PBES monitoring programs, and to complete additional reporting and enhancement requirements for Envi
Napa County Board of Supervisors · Planning, Building and Environmental Services (PBES) · Category 5415 IT & software services (inferred)
ApprovedNapa County, CA
P. Approve and authorize Amendment No. 1 to Agreement No. 250418B with Byrne Software Technologies, Inc., extending the term through June 30, 2027, and increasing the contract maximum from $151,900 to a new maximum of to $242,575, to add professional services to configure and automate the Conditions of Approval Monitoring records for Groundwater and other PBES monitoring programs, and to complete additional reporting and enhancement requirements for Environmental Health Accela permitting migration. (Fiscal Impact: $90,675 Expense; General Fund and GSA Fund; Budgeted; Discretionary) Item pulle…
View the minutes → · Agreement 250418B
$39,800Meeting Sep 15, 2026
PCD
Authorize the purchase of audiovisual equipment; establish equipment as
Napa County Board of Supervisors · Information Technology Services – Division of CEO’s Office · Category 42 Equipment & supplies (purchase) (inferred)
ApprovedNapa County, CA
approve a waiver of competitive bidding requirements and sole source award to PCD. (Fiscal Impact: $39,800 Expense; 4200 Fund (PEG); Budgeted; Discretionary) [4/5 vote required]
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Amount not statedMeeting Sep 15, 2026
Midstate Barrier, Inc.
the 2026 Annual Guardrail Repair, RDS 26-12
Napa County Board of Supervisors · Public Works · Category 2373 Highway, street & bridge construction (inferred)
ApprovedNapa County, CA
T. Award a Construction Contract to Midstate Barrier, Inc. for the 2026 Annual Guardrail Repair, RDS 26-12, and approve a Budget Amendment. (Fiscal Impact: $594, 879 Expense for the construction contract and other project costs; SB-1 Non-Operating Special Revenue Fund; Not Budgeted; Discretionary) [4/5 vote required] 26-1670 26-1388 26-1638 26-1649 26-1656 Board of Supervisors Meeting Minutes September 15, 2026 Page 6 of 12
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Amount not statedMeeting Sep 15, 2026
RS&H California, Inc.
environmental and sustainability consulting services:
Sonoma County Board of Supervisors · Public Infrastructure · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
C) Approve and authorize the Director of Public Infrastructure to execute the following task orders with RS&H California, Inc. under the Airport's Master Agreement for environmental and sustainability consulting services:
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Amount not statedMeeting Sep 15, 2026
Mead & Hunt, Inc.
planning, engineering, architectural, and related services:
Sonoma County Board of Supervisors · Public Infrastructure · Category 5413 Architecture, engineering & inspection (inferred)
ApprovedSonoma County, CA
B) Approve and authorize the Director of Public Infrastructure to execute the following task orders with Mead & Hunt, Inc. under the Airport's Master Agreement for planning, engineering, architectural, and related services:
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Amount not statedMeeting Sep 15, 2026
BKF Engineers
survey and mapping services:
Sonoma County Board of Supervisors · Public Infrastructure · Category 5413 Architecture, engineering & inspection (inferred)
ApprovedSonoma County, CA
A) Approve and authorize the Director of Public Infrastructure to execute the following task orders with BKF Engineers under the Airport's Master Agreement for survey and mapping services:
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Amount not statedMeeting Sep 15, 2026
TFR Enterprises Inc
Disaster Debris Removal and Disposal Services Agreements
Sonoma County Board of Supervisors · Public Infrastructure · Category 562 Waste & debris services (inferred)
ApprovedSonoma County, CA
A) Authorize the Director of the Public Infrastructure Department to execute fourteen (14) agreements, in form approved by County Counsel, for as-needed disaster debris removal and disposal services with the following firms: Anvil Builders Inc, AshBritt/Mountain Environmental Joint Venture, Ceres Environmental Services Inc, CrowderGulf, DRC Pacific Inc., ECC Constructors LLC, Land Revision, Odin Environmental Solutions LLC DBA Odin, Recology Sonoma Marin, NRC a Republic Services Company, Sonoma County Resource Recovery LLC, Southern Disaster Recovery LLC, Team Ghilotti Inc., and TFR Enterpris…
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Amount not statedMeeting Sep 15, 2026
Team Ghilotti Inc.
Disaster Debris Removal and Disposal Services Agreements
Sonoma County Board of Supervisors · Public Infrastructure · Category 562 Waste & debris services (inferred)
ApprovedSonoma County, CA
A) Authorize the Director of the Public Infrastructure Department to execute fourteen (14) agreements, in form approved by County Counsel, for as-needed disaster debris removal and disposal services with the following firms: Anvil Builders Inc, AshBritt/Mountain Environmental Joint Venture, Ceres Environmental Services Inc, CrowderGulf, DRC Pacific Inc., ECC Constructors LLC, Land Revision, Odin Environmental Solutions LLC DBA Odin, Recology Sonoma Marin, NRC a Republic Services Company, Sonoma County Resource Recovery LLC, Southern Disaster Recovery LLC, Team Ghilotti Inc., and TFR Enterpris…
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Amount not statedMeeting Sep 15, 2026
Southern Disaster Recovery LLC
Disaster Debris Removal and Disposal Services Agreements
Sonoma County Board of Supervisors · Public Infrastructure · Category 562 Waste & debris services (inferred)
ApprovedSonoma County, CA
A) Authorize the Director of the Public Infrastructure Department to execute fourteen (14) agreements, in form approved by County Counsel, for as-needed disaster debris removal and disposal services with the following firms: Anvil Builders Inc, AshBritt/Mountain Environmental Joint Venture, Ceres Environmental Services Inc, CrowderGulf, DRC Pacific Inc., ECC Constructors LLC, Land Revision, Odin Environmental Solutions LLC DBA Odin, Recology Sonoma Marin, NRC a Republic Services Company, Sonoma County Resource Recovery LLC, Southern Disaster Recovery LLC, Team Ghilotti Inc., and TFR Enterpris…
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Amount not statedMeeting Sep 15, 2026
Sonoma County Resource Recovery LLC
Disaster Debris Removal and Disposal Services Agreements
Sonoma County Board of Supervisors · Public Infrastructure · Category 562 Waste & debris services (inferred)
ApprovedSonoma County, CA
A) Authorize the Director of the Public Infrastructure Department to execute fourteen (14) agreements, in form approved by County Counsel, for as-needed disaster debris removal and disposal services with the following firms: Anvil Builders Inc, AshBritt/Mountain Environmental Joint Venture, Ceres Environmental Services Inc, CrowderGulf, DRC Pacific Inc., ECC Constructors LLC, Land Revision, Odin Environmental Solutions LLC DBA Odin, Recology Sonoma Marin, NRC a Republic Services Company, Sonoma County Resource Recovery LLC, Southern Disaster Recovery LLC, Team Ghilotti Inc., and TFR Enterpris…
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