HomeMy WebLinkAbout4.8.21 Board Packet UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
NOTICE OF MEETING
NOTICE IS HEREBY GIVEN that the Ukiah Valley Basin Groundwater Sustainability
Agency (“Agency”) Board of Directors (“Board”) will hold its regular Board Meeting at:
1:30 P.M. - Thursday, April 8, 2021
Zoom Link: https://mendocinocounty.zoom.us/j/89347011375
Meeting ID: 893 4701 1375
Phone: +1 669 900 9128
Due to COVID-19 the UVBGSA Board meetings will be conducted virtually and not available for in person
public participation (pursuant to State Executive Order N 29 20).
The public may participate digitally in meetings by sending comments to uvbgsa@mendocinocounty.org
or by clicking the link above to join the Zoom meeting, in lieu of personal attendance.
All email comment must be received by 8:00 A.M. the morning of the meeting in order to be published
online prior to the meeting.
AGENDA
1. CALL TO ORDER AND ROLL CALL
2. PLEDGE OF ALLEGIANCE
3. CONSENT ITEMS
a. Approval of Minutes from the February 11th, 2021 Meeting
b. Approval of Minutes from the March 11th, 2021 Meeting
c. Approval of UVBGSA FAQ Sheet for Publication on UVBGSA
Website
d. Approval of Permission to Enter Agreement on Coyote Valley
Reservation
4. ACTION ITEMS
a. Discussion and Possible Appointment Of Tribal Stakeholder
Director
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
The Board shall review the Tribal Stakeholder nomination by the six (6)
Tribes within the Ukiah Valley to confirm their appointment.
b. Presentation and Discussion Regarding Finalized Groundwater
Model Results
The Board will receive a presentation from Larry Walkers and Associates
on the finalized model results with different water use and groundwater
decline scenarios visualized.
c. Presentation and Discussion Regarding Finalized Monitoring
Network
The Board will receive a presentation from Larry Walkers and Associates
on the location and operations of the finalized monitoring network and the
estimated cost to the GSA to maintain the network and to conduct water
quality sampling.
5. DIRECTOR REPORTS
6. PUBLIC COMMENTS ON ITEMS NOT ON THE AGENDA
The Board will receive public comments on items not appearing on the agenda
and within the subject matter jurisdiction of the Agency. The Board will not enter
into a detailed discussion or take any action on any items presented during public
comments. Such items may only be referred to staff for administrative action or
scheduled on a subsequent agenda for discussion. Persons wishing to speak on
specific agenda items should do so at the time specified for those items. The
presiding Chair shall limit public comments to three minutes.
7. ADJOURNMENT
The Ukiah Valley Basin Groundwater Sustainability Agency complies with ADA requirements and upon
request, will attempt to reasonably accommodate individuals with disabilities by making meeting material
available in appropriate alternative formats (pursuant to Government Code Section 54953.2). Anyone
requiring reasonable accommodation to participate in the meeting should contact the Mendocino County
Department of Transportation by calling (707) 463-4363 at least 5 days prior to the meeting.
Please reference the Mendocino County website to obtain additional information for the Ukiah Valley
Basin Groundwater Sustainability Agency: http://www.mendocinocounty.org/uvbgsa
Ukiah Valley Basin Groundwater Sustainability Agency
Agenda Summary
Page 1 of 1
Item No.: 3.a
Date: 4/8/21
To: Board of Directors
Subject: Approval of Minutes from the February 11th, 2021 Meeting
Consent Agenda Regular Agenda Noticed Public Hearing
Summary:
Approval of Minutes from February 11th, 2021 Meeting
Recommended Action:
Approve the February 11th, 2021 Minutes
Background:
The Agency convened on February 11th, 2021
Fiscal Summary: No fiscal impact.
Action: ___________________________________________________
Motion:_____________________ 2nd:__________________________
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
ACTION MINUTES – February 11, 2021
1. CALL TO ORDER AND ROLL CALL (1:42 P.M.)
Present: Director Glen McGourty, Director Alfred White, and Director James Green.
Absent: Director Douglas Crane.
Mendocino County Staff Present: Howard Dashiell, Director of Transportation; Amber Fisette,
Deputy Director of Transportation; Andrew Bake, CivicSpark Fellow; Nicole French, Department
Analyst II.
Public Attendees: Jim Sullivan, Amir Mani, Brandi Brown, Elizabeth Salomone, Devon Jones,
Lana Cohen, Laura Foglia, Sean White, Michael Webster, and Deborah Edelman.
2. PLEDGE OF ALLEGIANCE
The Pledge of Allegiance was lead by: Director McGourty.
3. ACTION ITEMS
a. Discussion and Possible Appointment Of Agricultural
Stakeholder Director and Alternate Director Seat
Presenter/s: Devon Jones.
Public Comment: None.
Board Action: Upon motion by Director McGourty, seconded by Director White, and
carried (3/0/1, with Director Crane absent); IT IS ORDERED that Zachary Robinson is
appointed as Agricultural Director and Levi Paulin is appointed as Alternate Agricultural
Director of the Ukiah Valley Basin Groundwater Sustainability Agency.
DIRECTOR ROBINSON PRESENT AT 1:50 P.M.
b. Discussion and Possible Appointment Of Tribal Stakeholder
Director
Presenter/s: Amber Fisette and Andrew Bake.
Public Comment: Brandi Brown.
Board Action: Upon motion by Director McGourty, seconded by Director Green, and
carried (3/1/1, with Director Robinson abstaining and director Crane absent); IT IS
ORDERED that this item is hereby continued to a future meeting of the Ukiah Valley
Basin Groundwater Sustainability Agency.
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
c. Discussion and Possible Appointment of Officers Including
Chairman, Vice-Chairman, Secretary, and any Other Officers as
Determined Necessary by the Board of Directors
Presenter/s: Nicole French, Director McGourty, Amber Fisette, and Andrew Bake.
Public Comment: Brandi Brown.
Board Action: Upon motion by Director Green, seconded by Director White, and carried
(4/0/1, with Director Crane absent); IT IS ORDERED that Director McGourty is
appointed as Chair of the Ukiah Valley Basin Groundwater Sustainability Agency.
CHAIR MCGOURTY PRESIDING AT 1:53 P.M.
Board Action: Upon motion by Director White, seconded by Director Green, and carried
(4/0/1, with Director Crane absent); IT IS ORDERED that Director Crane is appointed as
Vice Chair of the Ukiah Valley Basin Groundwater Sustainability Agency.
Board Action: Upon motion by Director McGourty, seconded by Director Robinson, and
carried (4/0/1, with Director Crane absent); IT IS ORDERED that Director Green is
appointed as Secretary of the Ukiah Valley Basin Groundwater Sustainability Agency.
d. Discussion and Possible Approval of Minutes from the
November 12, 2020, Regular Meeting
Presenter/s: Director McGourty.
Public Comment: None.
Board Action: Upon motion by Director White, seconded by Director Green, and carried
(4/0/1, with Director Crane absent); IT IS ORDERED that the minutes from the
November 12, 2020, Ukiah Valley Groundwater Sustainability Agency are hereby
approved.
e. Discussion and Possible Action to Approve Land Access
Agreements for Building the Monitoring Network in the Ukiah
Valley Basin
Presenter/s: Andrew Bake.
Public Comment: Elizabeth Salomone, Laura Foglia, Devon Jones, and Amir Mani.
Board Action: Upon motion by Director White, seconded by Director Green, and carried
(3/1/1, with Director Robinson abstaining and director Crane absent); IT IS ORDERED
that the land access agreements for building the monitoring network in the Ukiah Valley
Basin are hereby approved, and authorize the Chair to sign same.
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
f. Discussion and Possible Action to Approve the Updated Ukiah
Valley Basin Goundwater Sustainability Agency Communication
and Engagement Plan
Presenter/s: Andrew Bake.
Public Comment: None.
Board Action: Upon motion by Director Robinson, seconded by Director White, and
carried (4/0/1); IT IS ORDERED that the the updated Ukiah Valley Basin Groundwater
Sustainability Agency communication and engagement plan is hereby approved.
DIRECTOR ROBINSON ABSENT AT 2:12 P.M.
DIRECTOR ROBINSON PRESENT AT 2:17 P.M.
g. Presentation, Discussion and Possible Action Regarding the
Development of Components of the Ukiah Valley Basin
Groundwater Sustainability Plan
Presenter/s: Amir Mani and Laura Foglia.
Public Comment: Jim Sullivan and Devon Jones.
Board Action: No action taken.
4. STAFF UPDATES
Presenter/s: Amber Fisette.
5. PUBLIC COMMENTS ON ITEMS NOT ON THE AGENDA
Presenter/s: None.
Public Comment: None.
6. DIRECTOR REPORTS
Presenter/s: None.
Public Comment: None.
7. ADJOURNMENT (3:14 P.M.)
________________________________
, Chair
Attest: Secretary
________________________________
Ukiah Valley Basin Groundwater Sustainability Agency
Agenda Summary
Page 1 of 1
Item No.: 3.b
Date: 4/8/21
To: Board of Directors
Subject: Approval of Minutes from the March 11th, 2021 Meeting
Consent Agenda Regular Agenda Noticed Public Hearing
Summary:
Approval of Minutes from March 11th, 2021 Meeting
Recommended Action:
Approve the March 11th, 2021 Minutes
Background:
The Agency convened on March 11th, 2021
Fiscal Summary: No fiscal impact.
Action: ___________________________________________________
Motion:_____________________ 2nd:__________________________
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
ACTION MINUTES – March 11, 2021
1. CALL TO ORDER AND ROLL CALL (1:32 P.M.)
Present: Director Glen McGourty, Director Douglas Crane, Director Alfred White, Director James
Green.
Absent: Director Zachary Robinson.
Mendocino County Staff Present: Amber Fisette, Deputy Director of Transportation; Andrew
Bake, CivicSpark Fellow; Nicole French, Department Analyst II.
Public Attendees: Alternate Director Maureen Mulheren, John Bliss, Barry Hill Jim Sullivan,
Elizabeth Salomone, Devon Jones, Lana Cohen, Laura Foglia, Sean White, and Laurel Marcus.
2. PLEDGE OF ALLEGIANCE
The Pledge of Allegiance was lead by: Director Green.
DIRECTOR ROBINSON PRESENT AT 1:35 P.M
3. CONSENT ITEMS
Presenter/s: Chair McGourty and Andrew Bake.
Public Comment: Elizabeth Salomone.
General Consensus of the Board: Direction to staff to publish all available meeting packet
materials at the time of agenda publication and send notice of meeting material publication to all
interested parties via email.
Board Action: Upon motion by Director White, seconded by Director Crane, and carried
unanimously; IT IS ORDERED that Consent Calendar items 4(a-b) are hereby continued to the
next meeting of the Ukiah Valley Basin Groundwater Sustainability Agency Board of Directors:
a. Approval of Minutes from the February 11th, 2021 Meeting
b. Approval of UVBGSA FAQ Sheet for Publication on UVBGSA Website
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
4. ACTION ITEMS
a. Discussion and Possible Appointment Of Tribal Stakeholder
Director (Continued from the February 11, 2021 meeting)
Presenter/s Andrew Bake.
Public Comment: None.
Board Action: Upon motion by Director Crane, seconded by Director Green, and carried
unanimously; IT IS ORDERED that this item is continued to the next meeting of the
Ukiah Valley Basin Groundwater Sustainability Agency Board of Directors.
b. Presentation and Discussion Regarding Introduction to
Groundwater Sustainability Funding for the Ukiah Valley Basin
GSA
Presenter/s: John Bliss, Laura Foglia, and Amber Fisette.
Public Comment: Devon Jones.
By Order of the Chair: Staff is hereby directed to research the funding and budget of the
Ukiah Valley Basin Groundwater Sustainability Agency and provide a report at the next
Board of Directors meeting.
c. Presentation and Discussion Regarding the Watershed
Coordinator Position by the California Land Stewardship
Institute
Presenter/s: Laurel Marcus and Barry Hill.
Public Comment: None.
Board Action: None.
d. Presentation and Discussion Regarding Updates to GSP
Technical Process
Presenter/s: Laura Foglia.
Public Comment: Devon Jones.
Board Action: None.
5. DIRECTOR REPORTS
Presenter/s: Chair McGourty and Director White.
Public Comment: None.
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
6. PUBLIC COMMENTS ON ITEMS NOT ON THE AGENDA
Presenter/s: Chair McGourty.
Public Comment: Elizabeth Salomone.
7. ADJOURNMENT (3:12 P.M.)
________________________________
Glenn McGourty, Chair
Attest: Secretary
________________________________
Ukiah Valley Basin Groundwater Sustainability Agency
Agenda Summary
Page 1 of 1
Item No.: 3.c
Date: 4/8/21
To: Board of Directors
Subject: Approval of UVBGSA FAQ Sheet for Publication on UVBGSA Website
Consent Agenda Regular Agenda Noticed Public Hearing
Summary:
The FAQ Sheet will be posted on the UVBGSA website and will serve to simplify the SGMA and
UVBGSA processes and to answer frequent questions by members of the public.
Recommended Action:
Approve the FAQ Sheet.
Background:
At the February 23rd, 2021 Public Meeting, Chair McGourty instructed Staff to prepare an FAQ
sheet for the UVBGSA website for members of the public.
Fiscal Summary: No fiscal impact.
Action: ___________________________________________________
Motion:_____________________ 2nd:__________________________
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
Ukiah Valley Basin Groundwater Sustainability Agency
Frequently Asked Questions
1) What is the Sustainable Groundwater Management Act (SGMA)?
a. The 2014 Sustainable Groundwater Management Act (SGMA) requires the
formation of groundwater sustainability agencies (GSAs) in high- and
medium-priority groundwater basins and sub-basins (basins) by June 30,
2017, in order to meet California Water Code requirements.
2) What is ‘sustainable’ Groundwater Management?
a. SGMA defines sustainable management as managing and using
groundwater in a way that can be sustained over a long period of time.
Specifically, SGMA defines sustainable yield as the amount of groundwater
that can be withdrawn annually without chronically lowering groundwater
levels, causing seawater intrusion, degrading water quality, causing land
subsidence or depleting interconnected surface water (for example, creeks,
streams and rivers) in a manner that causes significant and unreasonable
impacts. Local definitions of sustainable management will be defined in
the GSPs created in each basin.
3) Who will implement SGMA in the Ukiah Valley Basin?
a. SGMA will be implemented by the Ukiah Valley Basin Groundwater
Sustainability Agency (UVBGSA). It was created in 2017 with a Joint
Powers Agreement which brought together the County of Mendocino, City
of Ukiah, Russian River Flood Control and the Upper Russian River Water
Agency as members of the GSA. There are also two stakeholder members,
one Agricultural Member nominated by the Farm Bureau and one Tribal
Member nominated by the six tribes who exercise jurisdiction over Indian
lands in the Ukiah Valley Basin. For more information on the current
representatives to the GSA please visit: mendocinocounty.org/uvbgsa
4) What are the roles and responsibilities of the UVBGGSA?
a. The GSA is provided with powers and authorities by SGMA to ensure that
the Ukiah Valley Basin, which stretches from Redwood Valley in the north
to just past the southern end of Ukiah, attains groundwater sustainability
by 2042, 20 years after the adoption of the Groundwater Sustainability
Plan by DWR.
5) What is the Groundwater Sustainability Plan (GSP)?
a. The GSP is the state-mandated plan to sustainably manage groundwater.
The Ukiah Valley Basin GSP will contain an assessment of the basin under
past, present and future conditions and will lay out the necessary
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
monitoring and management plan and other requirements to achieve
sustainability.
b. The GSP is currently being written by Larry Walker and Associates who
specialize in water management with assistance from the UVBGSA
Technical Advisory Committee and oversight from the UVBGSA Board of
Directors.
c. Once the GSP is complete, the UVBGSA will release it in July for public
comment before it is reviewed and submitted to DWR.
d. Other avenues for engagement are the UVBGSA Board and TAC meetings
which happen monthly and are open for public comment on items that fall
under the jurisdiction of the UVBGSA. Please feel visit
mendocinocounty.org/uvbgsa to see the Board and TAC meeting schedule
or email uvbgsa@mendocinocounty.org for more information.
6) What are the current goals of the GSP?
a. The current goals of the Ukiah Valley GSP are to fill data gaps by
developing monitoring networks for groundwater elevation and water
quality to better understand how water flows through the basin. The GSP
will also discuss the Project and Management Actions that can be
undertaken by the UVBGSA to build groundwater sustainability as well as
future scenarios which may put the basin at risk of long term decline.
b. The GSP currently contains no proposal to limit groundwater pumping or
to meter wells.
7) When will the GSP take effect?
a. SGMA took effect on January 1, 2015. A GSP must be adopted by 2020 for
critically over-drafted basins, and 2022 for other medium and high
priority basins. The Ukiah Valley Basin was designated a medium priority
basin by DWR in their 2019 Basin Prioritization report.
b. The UVBGSA will adopt and submit the GSP for approval to DWR in
January of 2022 and will submit annual progress reports and review the
plan every 5 years.
8) Is there a cost for the Groundwater Sustainability Plan?
a. The initial startup costs for the UBVGSA were covered by membership
dues from the founding agencies as well as funding from Prop 1 and Prop
68 grants. The GSA is evaluating how to fund itself in the long term.
Funding strategies will be discussed further in the GSP.
9) Does SGMA affect my water rights?
a. Section 10720.5 of the SGMA specifies that the act and any groundwater
management plans developed as a result of the act do not affect surface or
groundwater rights.
UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY
340 Lake Mendocino Dr. Ukiah California 95482 (707)463-4363 fax (707)463-5474
10) Will the UVBGSA meter my well?
a. The UVBGSA currently has no plans to meter or limit well production.
GSA’s have the power and authority to do this under SGMA and other
GSA’s have taken this step. However, the UVBGSA does not believe the
groundwater table in the Ukiah Valley Basin is currently at sufficient risk
nor do we think that metering wells would be productive in the current
iteration of the Ukiah Valley Basin Groundwater Sustainability Plan.
Ukiah Valley Basin Groundwater Sustainability Agency
Agenda Summary
Page 1 of 1
Item No.: 3.d
Date: 4/8/21
To: Board of Directors
Subject: Approval of Permission to Enter Agreement on Coyote Valley Reservation
Consent Agenda Regular Agenda Noticed Public Hearing
Summary:
The Permission to Enter Agreement will allow UVBGSA staff and Consultants to enter Coyote
Valley Reservation to conduct streamflow monitoring for calibration of the Forsythe Creek
Stream Gage.
Recommended Action:
Approve the Permission to Enter Agreement.
Background:
The Forsyth Creek Stream Gage was installed in February and currently measures distance from
the gage sensor to the height of the river. These stream flow measurements conducted over the
span of the next 4 months until the river becomes too low to measure will allow the consultants
to create a flow-discharge curve converting the height of the river to volume of water flowing
down the stream allowing us to get a gage on how much water is flowing down the Russian.
Fiscal Summary: No fiscal impact.
Action: ___________________________________________________
Motion:_____________________ 2nd:__________________________
Ukiah Valley Basin Groundwater Sustainability Agency
Agenda Summary
Item No.:
Date:
To:
Subject:
Consent Agenda Regular Agenda Noticed Public Hearing
Summary:
Article 7 of the Joint Powers Agreement (JPA) provides that one stakeholder director shall be a
representative of tribal stakeholders and interest with the Basin. One Tribal Stakeholder
Director shall be appointed by the six tribes exercising jurisdiction over Indian lands within the
Ukiah Valley Basin identified as Redwood Valley Rancheria, Coyote Valley Reservation,
Pinoleville Pomo Nation, Potter Valley Rancheria, Guidiville Rancheria and the Hopland
Reservation.
Section 7.3.2 (b) of the JPA provides that the Board of Directors confirm the nomination for the
Tribal Stakeholder Director submitted by the six Tribes within the Ukiah Valley. The Member
Directors shall confirm the nominee at a regular meeting and shall appoint the Tribal
Stakeholder Director upon simple majority vote of all Member Directors.
Recommended Action:
1. Review the nominees submitted by the six Tribes within the Ukiah Valley and confirm
appointment of the Tribal Stakeholder Director and Alternate Director to the Board.
Background:
In 2019, the six Tribes of the Ukiah Valley Basin nominated Brandi Brown, Redwood Valley
Tribal Treasurer as Tribal Stakeholder Director and Sonny Elliott Jr., Hopland Reservation as
Alternate Stakeholder Director for a two year term representing Tribal interests on the UVBGSA
Board and TAC.
Ukiah Valley Basin Groundwater Sustainability Agency
Agenda Summary
Fiscal Summary: No fiscal impact.
Action: ___________________________________________________
Motion:_____________________ 2nd:__________________________
Ukiah Valley Basin Groundwater Sustainability Agency
Agenda Summary
Page 1 of 1
Item No.: 4.b
Date: 4/8/21
To: Board of Directors
Subject: Presentation and Discussion Regarding Finalized Groundwater Model Results
Consent Agenda Regular Agenda Noticed Public Hearing
Summary:
The Board will receive a presentation from Larry Walkers and Associates on the finalized model
results with different water use and groundwater decline scenarios visualized.
Recommended Action:
Discuss the limits presented in the different GW level scenarios.
Background:
The UVBGSA will need to develop Minimum Thresholds (MT) and Measureable Objectives
(MO) to avoid the six undesirable results defined by SGMA. The model results will help Board
and TAC members take a data driven approach to defining these MO and MT’s for the GSP.
Fiscal Summary: No fiscal impact.
Action: ___________________________________________________
Motion:_____________________ 2nd:__________________________
Ukiah Valley Basin Groundwater Sustainability Agency
Agenda Summary
Page 1 of 1
Item No.: 4.c
Date: 3/11/21
To: Board of Directors
Subject: Presentation and Discussion Regarding Finalized Monitoring Network
Consent Agenda Regular Agenda Noticed Public Hearing
Summary:
The Board will receive a presentation from Larry Walkers and Associates on the location and
operations of the finalized monitoring network and the estimated cost to the GSA to maintain
the network and to conduct water quality sampling.
Recommended Action:
Discuss funding options for ongoing funding of GSA incorporating monitoring network and
water quality sampling costs.
Background:
The monitoring network and water quality sampling are important to building a database of
groundwater elevation and water quality to inform decisions on basin management.
Fiscal Summary: No fiscal impact.
Action: ___________________________________________________
Motion:_____________________ 2nd:__________________________
Ukiah Valley Groundwater Sustainability Plan
Development Update
April 8, 2021
Ukiah Valley Basin Groundwater Sustainability Agency
Draft
Update on Monitoring Networks
Draft
Monitoring Network for
Chronic Lowering of Groundwater Levels
3
Aquifer 1:
◼4 Monitoring Wells
⚫3 existing wells (all RMPs) and 1 well to be drilled
⚫3 continuous monitoring and 1 with CASGEM frequency
Aquifer 2:
◼22 Monitoring Wells
⚫18 existing wells and 4 wells to be drilled
◼7 wells to be instrumented + 4 DWR wells handled by the department.
⚫7 continuous monitoring and 15 with CASGEM frequency
* Number of continuous measurements may increase by 2, some wells still in technical and
administrative process. One well may be added to Aquifer 2 near Lake Mendocino.
*Drilling and instrumentation costs for all new wells are covered
through TSS grant
Draft
Monitoring Network for
Degradation of Water Quality
4
◼GWQ Monitoring Wells: 19 Wells
⚫5 wells in Aquifer 1
⚫14 wells in Aquifer 2
◼4 representative monitoring points for Nitrate
(annual) and Specific Conductivity (triannual)
⚫18 wells to monitor, 3 GSA responsibility (Drilled)
◼Tracking Iron, Manganese, and Boron (triannual)
⚫16 wells to monitor, 4 GSA responsibility + Boron
COC Frequency # of
Wells
#Wells GSA
Responsibility
Lab Analysis
Costs
Boron 36 months 16 16 TBD
Iron 36 months 16 4 TBD
Manganese 36 months 16 4 TBD
Nitrate 12 months 18 3 TBD
Specific
conductivity
36 months 18 3 TBD
Nitrate (Annual)
Specific Conductivity
(Triannual)
Iron
Manganese
Boron
(Triannual)
Draft
Monitoring Network for
Depletion of Surface Water
5
Groundwater
◼Includes several monitoring wells from the chronic
lowering of groundwater levels monitoring network
⚫4-5 Monitoring Wells in Aquifer 1 (2-3 drilled)
⚫6 Monitoring Wells in Aquifer 2 (1 drilled)
⚫Cost is already covered in GWE network
Surface Water
◼2 USGS gages
◼2 or 3 stream gages, GSA responsibility (additional
cost)
* Drilled wells are still being adjusted and map will be revised
Draft
Monitoring Network for
Land Subsidence
6
◼InSAR satellite-derived vertical land displacement
estimates published annually by DWR will be used
for the monitoring.
◼These data will monitor potential surface deformation
trends related to subsidence.
◼Point data are average vertical displacements of a
100-by-100-m area
⚫GIS rasters are interpolated from the point data.
◼The entire Basin area is covered through
interpolation of rasters.
◼No cost to GSA other than what is covered under
annual reporting.
Draft
Update on Integrated Model
Draft
Historical output from
Calibrated Model
8
Draft
Historical output from
Calibrated Model
9
Draft
Historical output from
Calibrated Model
10
Draft
Historical output from
Calibrated Model
Draft
Historical output from
Calibrated Model
12
Draft
Questions?