34 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.
$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
$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.
View the agenda →
$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
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:
View the agenda →
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:
View the agenda →
Amount not statedMeeting Sep 1, 2026
Van Dermyden Makus Law Corporation
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
Amount not statedMeeting Sep 1, 2026
Sloan Sakai Yeung & Wong LLP
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
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Amount not statedMeeting Sep 1, 2026
Renne Public Law Group
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
Amount not statedMeeting Sep 1, 2026
Oppenheimer Investigations Group LLP
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
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Amount not statedMeeting Sep 1, 2026
Kronick Moskovitz Tiedemann & Girard
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
Amount not statedMeeting Sep 1, 2026
JL Group LLC
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
Amount not statedMeeting Sep 1, 2026
Hirschfeld Kraemer LLP
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
Amount not statedMeeting Sep 1, 2026
Hanson Bridgett LLP
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
Amount not statedMeeting Sep 1, 2026
Ellis Investigations Law Corporation
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
Amount not statedMeeting Sep 1, 2026
CPS HR Consulting
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
Amount not statedMeeting Sep 1, 2026
Buehler Trapani LLP
Workplace Investigation Service Agreements
Sonoma County Board of Supervisors · Human Resources · Category 5416 Management, environmental & consulting services (inferred)
ApprovedSonoma County, CA
12. Workplace Investigation Service Agreements 2026-0754 Authorize County Counsel and the Director of Human Resources to execute agreements with eleven firms specializing in workplace investigations for the contract period starting October 1, 2026 through September 30, 2029 for $450,000 per contract year per agreement (maximum not to exceed of $1,350,000 per contract over the initial term of the agreement), with two, one-year options to extend for $450,000 per contract year for a total contract period not to exceed five years, with the following firms: Buehler Trapani LLP, CPS HR Consulting,…
View the agenda →
$1.0M maxMeeting Aug 25, 2026
Kleinfelder, Inc.
as-needed engineering design 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 as-needed engineering design services through June 30, 2031, in the not-to-exceed amount of $1,000,000. Department or Agency Name(s): Sonoma County Water Agency, Occidental County Sanitation
View the agenda →
$500,000 maxMeeting Aug 25, 2026
Environmental Science Associates
as-needed hydrology and hydraulic 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 to execute an agreement with Environmental Science Associates, in substantially the form presented to this Board, for as-needed hydrology and hydraulic services through August 31, 2031, in the not-to-exceed amount of $500,000.
View the agenda →
$1.5M maxMeeting Aug 18, 2026
Peterson Structural Engineers, Inc.
structural engineering design 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 Peterson Structural Engineers, Inc., in substantially the form presented to this Board, for structural engineering design services through June 30, 2031, in the not-to-exceed amount of $1,500,000.
View the agenda →
$1.0M maxMeeting Aug 18, 2026
InfraTerra, Inc.
structural engineering design 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 InfraTerra, Inc., in substantially the form presented to this Board, for structural engineering design services through June 30, 2031, in the not-to-exceed amount of $1,000,000. Department or Agency Name(s): Sonoma County Water Agency, Occidental County Sanitation
View the agenda →
$157,286 maxMeeting Aug 4, 2026
Carollo Engineers, Inc.
Sea Ranch asset valuation services
Sonoma County Board of Supervisors · Category 5413 Architecture, engineering & inspection (inferred)
ApprovedSonoma County, CA
17. Sea Ranch Asset Valuation 2026-0742 Authorize Sonoma County Water Agency’s General Manager to execute an agreement with Carollo Engineers, Inc., in substantially the form presented to this Board, for Sea Ranch asset valuation services through July 30, 2027, in the not-to-exceed amount of $157,286. Department or Agency Name(s):
View the minutes →