HomeMy WebLinkAboutLarry Walker Associates 2025-08-09; Amendment 1 2026-04-171
AMENDMENT NO. 1 TO
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY PROFESSIONAL
SERVICES AGREEMENT WITH LARRY WALKER ASSOCIATES
This Amendment No. 1 is by and between the UKIAH VALLEY BASIN GROUNDWATER
SUSTAINABILITY AGENCY, hereinafter referred to as “UVBGSA”, and Larry Walker
Associates, hereinafter referred to as the “CONSULTANT”.
WITNESSETH
WHEREAS, pursuant to Article 5 Section 5.2.7 of the Joint Powers Agreement Forming the
Ukiah Valley Basin Groundwater Sustainability Agency, UVBGSA shall have the power to
make and enter into contracts necessary to the full exercise of the Agency’s power; and
WHEREAS, on August 29, 2025, UVBGSA and CONSULTANT executed a professional
services agreement for on-call technical consulting services related to the implementation
of the Ukiah Valley Basin Groundwater Sustainability Plan (“Contract”); and
WHEREAS, UVBGSA and CONSULTANT mutually agree that it is in each of their own best
interests to authorize CONSULTANT to perform additional technical services needed to
support ongoing groundwater management activities during UVBGSA’s 2025–2026 fiscal
year, including (1) Task 5: Well Inventory Phase II; (2) Task 6: Periodic Evaluation; and (3)
Task 7: Periodic Evaluation Model Updates (“Additional Services”); and
WHEREAS, to facilitate the completion of work under the Contract, including the Additional
Services, UVBGSA and CONSULTANT mutually agree to amend the scope of work, not-to-
exceed amount, and term of the Contract pursuant to the terms and conditions of this
Amendment No. 1.
TERMS AND CONDITIONS
1.Exhibit A – Definition of Services. Exhibit A of the Contract is hereby deleted in its
entirety and replaced with Exhibit A of this Amendment No. 1, attached hereto and
incorporated herein by reference.
2.Exhibit B – Payment Terms. Exhibit B of the Contract is hereby deleted in its entirety
and replaced with Exhibit B of this Amendment No. 1, attached hereto and
incorporated herein by reference.
3.Term. The term of the Contract is hereby extended from June 30, 2026, to February
1, 2027.
4.Not-to-Exceed Amount. The final sentence on page 1 of the Contract shall be
deleted in its entirety, which states:
UVBGSDA No. 2526-002-A1
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EXHIBIT A
DEFINITION OF SERVICES
CONSULTANT shall provide the following services:
Original Services: The LWA on-call scope of work includes, but is not limited to, the
following tasks:
Task 1: Attendance (Virtual) of Board and TAC meetings to provide technical
guidance
Task 2: Preparation of the WY 2025 Annual Report
Task 3: Technical support: supervise data collection, support the GSA with data
reporting to DWR, coordinate data collection effort with CLSI and MCRCD
Task 4: As-needed technical Support: Other GSP-related technical support as
requested by the UVBGSA General Manager in writing
On-Call technical consulting services will be requested in writing by the UVBGSA
general manager on a task-by-task basis. Services will be billed in accordance
with Exhibit B.
Additional Services: In addition to the Original Services, the LWA on-call scope of work
includes:
Task 5: Well Inventory Phase II. This task will continue refinement and
improvement of the Ukiah Valley well inventory and associated databases to
support GSP implementation, monitoring network evaluation, and assessment of
domestic well vulnerability.
Task 6: Periodic Evaluation. This task will support preparation of the UVBGSA
Periodic Evaluation, including technical analyses, documentation of new
information, and development of draft and final reports.
Task 7: Periodic Evaluation Model Updates. This task includes updates and
refinements to the Ukiah Valley Integrated Hydrologic Model (UVIHM) to support
the Periodic Evaluation and future GSP implementation.
[END OF DEFINITION OF SERVICES]
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EXHIBIT B
PAYMENT TERMS
1. Original Services: For the Original Services, described in Exhibit A, CONSULTANT
shall be compensated on a time-and-expense basis, not to exceed seventy-five
thousand dollars ($75,000), and CONSULTANT will charge the UVBGSA in
accordance with the allocated budget to each task and rate schedule in
Attachment 1 to Exhibit B. This fee shall not be exceeded without the prior written
authorization from the UVBGSA General Manager and approval by the Board.
2. Additional Services: For the Additional Services, described in Exhibit A,
CONSULTANT shall be compensated on a time-and-expense basis, not to exceed
three hundred forty-seven thousand dollars ($347,000), and CONSULTANT will
charge the UVBGSA in accordance with the allocated budget to each task and
rate schedule in Attachment 2 to Exhibit B. This fee shall not be exceeded
without the prior written authorization from the UVBGSA General Manager and
approval by the Board.
3. CONSULTANT shall submit invoices no less than quarterly, detailing the specific
services provided and clearly explaining any incidental charges.
4. UVBGSA shall pay CONSULTANT for all work requested upon the satisfactory
completion of said work.
5. Payments for work completed by CONSULTANT will be made by UVBGSA
within 30 days of receipt of CONSULTANT's invoice.
[END OF PAYMENT TERMS]
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Exhibit B - Attachment 1
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Task Budget
GSP Implementation
$ 75,000
Meetings attendance and
preparation (Board and TAC)
$ 15,000
Annual Reporting
$ 25,000
Technical Support
$ 25,000
As-needed Technical Support
$ 10,000
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Exhibit B - Attachment 2