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HomeMy WebLinkAbout6-11-20 UVBGSA Agenda PacketUKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY 501 Low Gap Rd., Rm. 1010  Ukiah  California 95482  (707)463-4441  fax (707)463-7237 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, June 11, 2020 Mendocino County Board of Supervisors Chambers, 501 Low Gap Road, Room 1070, CA 95482 Due to COVID-19 the UVBGSA 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 register for the zoom meeting at https://mendocinocounty.zoom.us/meeting/register/tJMrceGprTIiE9OvS_IzOlMr1jjXlaxtZhXr , 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 March 12, 2020 Meeting 4. STAFF UPDATES 5. 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 o r 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. 6. ACTION ITEMS a. Update and Discussion Regarding the Integrated Model and Groundwater Sustainability Plan Development The Board will receive an update on the progress in GSP writing and the development of the integrated model. UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY 501 Low Gap Rd., Rm. 1010  Ukiah  California 95482  (707)463-4441  fax (707)463-7237 b. Presentation, Discussion, and Possible Action Regarding the Development of Sustainability Goals for Water Quality Degradation and Subsidence The Board will receive a presentation regarding development of sustainability goals and Technical Advisory Committee recommendations for Water Quality Degradation and Subsidence. c. Discussion and Possible Adoption of the Proposed Fiscal Year 2020-2021 Budget The Board will review the proposed Fiscal Year 2020-2021 budget for approval. 7. DIRECTOR REPORTS 8. 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 Executive Office by calling (707) 463-4441 at least five 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: 6/11/20 To: Board of Directors Subject: Discussion and Possible Approval of Minutes from the March 12, 2020 Regular Meeting Consent Agenda Regular Agenda Noticed Public Hearing Summary: Approval of Minutes from March 12, 2020, Regular Meeting. Recommended Action: Approve the March 12, 2020, regular meeting minutes. Background: The Agency convened on March 12, 2020. Fiscal Summary: N/A Action: ___________________________________________________ Motion:_____________________ 2nd:__________________________ UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY 501 Low Gap Rd., Rm. 1010  Ukiah  California 95482  (707)463-4441  fax (707)463-7237 1:30 P.M. - Thursday, March 12, 2020 Mendocino County Board of Supervisors Chambers, 501 Low Gap Road, Room 1070, Ukiah, CA 95482 ACTION MINUTES 1. CALL TO ORDER AND ROLL CALL (1:32 PM) Present: Director Douglas Crane; Director Robinson; Director Carre Brown; Alternate Director Todd; and 2. PLEDGE OF ALLEGIANCE The Pledge of Allegiance was led by: Director Todd 3. STAFF UPDATES Meeting with Larry Walker possible meeting in May look at cancelling in July. And a possible meeting in September. Meetings in Ukiah as well as Redwood Valley. 4. PUBLIC COMMENT: 5. ACTION ITEMS 5a. Discussion and Possible Action Regarding Member Agency Dues for Fiscal Year 2020-2021 Presenter: Ms. Sarah Dukett, Deputy Chief Executive Officer, Mendocino County. Public Comment: None. Board Action: Upon motion by Director Crane, seconded by Director White, and carried (4/1/1); IT IS ORDERED The assessmet for three thousand dollars ($3,000) in dues for member agencies to fund the Agency for Fiscal Year 2020-2021 and 2021-2022. 5b. Update and Discussion Regarding Proposition 68 Solicitation for Groundwater Sustainability Plan Development and Projects. Presenter: Ms. Sarah Dukett, Deputy Chief Executive Officer, Mendocino County. Ms. Dukett updated the board regarding Proposition 68 grant application to support development of the Ukiah Valley Groundwater Sustainability Plan. Public Comment: None. Board Action: None UKIAH VALLEY BASIN GROUNDWATER SUSTAINABILITY AGENCY 501 Low Gap Rd., Rm. 1010  Ukiah  California 95482  (707)463-4441  fax (707)463-7237 5c. Presentation, Discussion and Possible Action Regarding the Development of Sustainability Goals. Presenter/s: Ms. Laura Foglia, Senior Engineer, Larry Walker Associates; and Ms. Sarah Dukett, Deputy Chief Executive Officer, Mendocino County, Sean TAC member The Board received an introduction to the development of sustainability goals for the Ukiah Valley Basin Groundwater Sustainability Plan. Ms. Foglia presented to the board a review of components of the GSP for feedback and approval. Larry Walker Associates will provide GSP update and review the sustainability goals development process. The Directors reviewed the question from presentation with staff and recorded responses. Public Comment: None. Board Action: None. 5d. Update and Discussion Regarding the Technical Advisory Committee’s Groundwater Interaction Working Group. Presenter/s: Laura Foglia & Amir Mani, Larry Walker Associates, and Ms. Sarah Dukett, Deputy Chief Executive Officer, Mendocino County . Ms. Dukett discussed the first meeting on January 9, 2020, Technical Advisory Committee (TAC). There was a working group on the groundwater/surface water interaction. Ms. Dukett announced the following TAC members: Laurel Marcus, Marcus Trotta, Sean Wh ite and Mike Webster. Chair Brown read from a letter she received. Public Comment: None. Board Action: None. 6. DIRECTOR REPORTS 6a. None 7. ADJOURNMENT (2:50 PM) Ukiah Valley Basin Groundwater Sustainability Agency Agenda Summary Page 1 of 2 Item No.: 6.a Date: 6/11/20 To: Board of Directors Subject: Update and Discussion Regarding the Integrated Model and Groundwater Sustainability Plan Development Consent Agenda Regular Agenda Noticed Public Hearing Summary: The Board will receive an update and presentation from Larry Walker and Associates regarding the progress in GSP writing and the development of the integrated model. Recommended Action: Accept update and provide direction to staff regarding GSP writing and model development. Background: On June 14, 2018, the Ukiah Valley Basin Groundwater Sustainability Agency (UVBGSA) recommended approval of a contract with Larry Walker and Associates for the development of the Ukiah Valley Groundwater Sustainability Plan (GSP). On July 10, 2018, the Mendocino County Water Agency Board of Directors approved the contract with Larry Walker and Associates. On September 13, 2018, Larry Walker and Associates present an overview of the project and schedule to solicit feedback from the Board. Larry Walker and Associates will be presenting to the Board on a regular basis to review components of the GSP for feedback and approval. Fiscal Summary: N/A Action: ___________________________________________________ Motion:_____________________ 2nd:__________________________ Ukiah Valley Basin Groundwater Sustainability Agency Agenda Summary Page 1 of 2 Item No.: 6.b Date: 6/11/20 To: Board of Directors Subject: Presentation, Discussion, and Possible Action Regarding the Development of Sustainability Goals for Water Quality Degradation and Subsidence Consent Agenda Regular Agenda Noticed Public Hearing Summary: The Board will receive a presentation regarding development of sustainability goals and Technical Advisory Committee recommendations for Water Quality Degradation and Subsidence. Recommended Action: Receive presentation regarding sustainability goals and provide direction to staff. Background: On June 14, 2018, the Ukiah Valley Basin Groundwater Sustainability Agency (UVBGSA) recommended approval of a contract with Larry Walker and Associates for the development of the Ukiah Valley Groundwater Sustainability Plan (GSP). On July 10, 2018, the Mendocino County Water Agency Board of Directors approved the contract with Larry Walker and Associates. Larry Walker and Associates presents to the Board on a regular basis to review components of the GSP for feedback and approval. LWA will provide a GSP update and review the sustainability goals development process. Fiscal Summary: N/A Action: ___________________________________________________ Ukiah Valley Basin Groundwater Sustainability Agency Agenda Summary Page 2 of 2 Motion:_____________________ 2nd:__________________________ Ukiah Valley Basin Groundwater Sustainability Agency Agenda Summary Page 1 of 2 Item No.: 6.c Date: 6/11/20 To: Board of Directors Subject: Discussion and Possible Adoption of the Proposed Fiscal Year 2020-2021 Budget Consent Agenda Regular Agenda Noticed Public Hearing Summary: The Joint Powers Agreement (JPA) requires that the Agency adopt a budget pursuant to the schedule and provisions described below. The Board should review the current financial status and consider the proposed FY 2020-2021 budget for adoption. Recommended Action: Adopt the Proposed Fiscal Year 2020-2021 Budget. Background: Section 15.1 requires within (90) days after the first meeting of the Governing Board of the Agency and thereafter prior to the commencement of each fiscal year (July 1st), the Board of Directors adopt a budget for the Agency for the ensuing fiscal year. The Trust Account FY 2019-20 year-end projected balance is $1,914. Membership dues approved for assessment in July 2020 at the March 12, 2020 meeting will be an additional $12,000 in the Trust Account. FY 2020-21 appropriates $7,250 of the Trust Account for the administration of the UVBGSA. The County of Mendocino manages the Trust Account and the budget is administered by the Mendocino County Water Agency. This management structure allows the County to include UVBGSA in the County’s annual audit, therefore meeting the UVBGSA audit requirement. Fiscal Summary: $7,250 Ukiah Valley Basin Groundwater Sustainability Agency Agenda Summary Page 2 of 2 Action: ___________________________________________________ Motion:_____________________ 2nd:__________________________ Description FY 2018-19 Actual FY 2019-20 Projected Year-End FY 2020-2021 Proposed Detail Revenue Other Govt Aid $0 $0 $0 Other $0 $0 $0 Grant Revenue $0 $0 $0 Fees $0 $0 $0 Membership Dues ($15,691)($8,984)($13,914)FY 2020-21 Dues ($12,000) Projected Carryfoward ($1,914) Total Revenues ($15,691)($8,984)($13,914) Administrative Services Clerk Services $1,479 $2,000 $2,000 Provided by Mendocino County - records management/publicans/agendas Administrative Services $5,177 $5,000 $5,000 Provided by Mendocino County Water Agency - administrative support Total Administrative Services $6,657 $7,000 $7,000 Services & Supplies Communications $0 $50 $50 Mail, public noticing Insurance - General $0 $0 $0 Maint - Equip $0 $0 $0 Memberships $0 $0 $0 Office Expense $50 $20 $100 Education & Training $0 $0 $0 Prof/Spec Svcs - Other $0 $0 $0 Rent/Lease Equip $0 $0 $0 Small Tool/Instrument $0 $0 $0 Spec Dept Expense $0 $0 $0 Travel $0 $0 $100 Total Services & Supplies $50 $70 $250 Fixed Assets Equipment $0 $0 $0 Total Fixed Assets $0 $0 $0 Other Charges $0 $0 Pmt Other Gov Agency $0 $0 $0 Total Other Charges $0 $0 $0 Total Expenditures $6,707 $7,070 $7,250 Remaining Trust Account Total ($8,984)($1,914)($6,664) UVBGSA Fiscal Year 2020-2021 Proposed Budget Ukiah Valley Groundwater Sustainability Plan Development Update June 11, 2020 Ukiah Valley Basin Groundwater Sustainability Agency Board Meeting DRAFT DRAFT ◼State of GSP Prior to This Meeting ⚫Integrated Model Updates ⚫GSP Writing Update ◼Sustainable Management Criteria (SMC) ⚫Review of SMC ⚫Summary of Sustainability Goal Survey ⚫Water Quality ⚫Subsidence Outline DRAFT ◼State of GSP Prior to This Meeting ⚫Integrated Model Updates ⚫GSP Writing Update ◼Sustainable Management Criteria (SMC) ⚫Review of SMC ⚫Summary of Sustainability Goal Survey ⚫Water Quality ⚫Subsidence Outline DRAFT State of GSP Prior to this Meeting ◼Integrated Model: calibrated results for PRMS and IDC were presented along with uncalibrated MODFLOW results. ◼GSP Chapter 2 development discussed and HCM and Chapter 2.1 presented for review. ◼Sustainable Management Criteria (SMC) development was reviewed. ◼Sustainability Goal was discussed and surveyed. DRAFT ◼State of GSP Prior to This Meeting ⚫Integrated Model Updates ⚫GSP Writing Update ◼Sustainable Management Criteria (SMC) ⚫Review of SMC ⚫Summary of Sustainability Goal Survey ⚫Water Quality ⚫Subsidence Outline ET demand for crops is met by irrigation with groundwater or surface water Surface Water and Groundwater available for Agricultural Use IDC or GSFLOW Agriculture Model Streamflow Routing (SFR) in the MODFLOW Groundwater Model PRMS Rainfall Runoff Watershed Model Surface and groundwater flows Integrated Model Updates: Surface Water and Groundwater available for Urban and Domestic Use Surface and groundwater flows DRAFT ◼PRMS updates ⚫PRMS updated to newer version PRMS 5.0 compatible with GSFLOW v2.0. ⚫Ponds included in PRMS. SW diversions are estimated. ◼IDC updates ⚫IDC calculated percolation and ET are being used to adjust MODFLOW recharge and PRMS ET. ⚫IDC’s role will be switched to recently released Ag Package within GSFLOW and IDC will be used to form Ag Package inputs and ground truth its results. ◼MODFLOW updates ⚫Sensitivity analysis and first round of calibration were conducted. ⚫New observation points from CLSI and UCSD are added. ⚫Aquifer extents and parameters, and stream types and parameters were adjusted. Integrated Model Updates 7 DRAFT Question? 8 DRAFT ◼State of GSP Prior to This Meeting ⚫Integrated Model Updates ⚫GSP Writing Update ◼Sustainable Management Criteria (SMC) ⚫Review of SMC ⚫Summary of Sustainability Goal Survey ⚫Water Quality ⚫Subsidence Outline DRAFT GSP Writing Update A GSP has five chapters: 1.Introduction 2.Plan Area and Basin Setting 3.Sustainable Management Criteria 4.Projects and Management Actions 5.Plan Implementation DRAFT Information Needed for Ch 2 Section 2.1 2.1. Description of Plan Area ▪Subchapter is mostly complete. A few gaps need to be filled for monitoring program, prior water management planning, and environmental health permitting and procedures. 2.2. Basin Setting ▪HCM is completed and presented (Subchapter 2.2.1) ▪Current and historical groundwater conditions are being completed with gaps pending integrated model results (Subchapter 2.2.2). ▪Water budget and management areas section (Subchapter 2.2.3 and 2.2.4) will be completed as the GSP process progresses. DRAFT Question? 12 DRAFT ◼State of GSP Prior to This Meeting ⚫Integrated Model Updates ⚫GSP Writing Update ◼Sustainable Management Criteria (SMC) ⚫Review of SMC ⚫Summary of Sustainability Goal Survey ⚫Water Quality ⚫Subsidence Outline DRAFT Monitoring and Managing Sustainability Sustainability Indicators Mo n i t o r i n g Measurable Objective (MO) Minimum Threshold (MT) modified from Ca DWR 2016 Triggers DRAFT Review of Sustainable Management Criteria Components ◼Undesirable Results ◼Minimum Thresholds ◼Measurable Objectives ◼Sustainability Goal Measurable Objective Threshold Undesirable Results DRAFT EXAMPLE DRAFT Advisory Committee to propose SMC for each undesirable result (UR) Which undesirable results are controversial? What thermometer looks like? Technical team will summarize existing data and describe options Proposed SMC Development Process DRAFT ◼State of GSP Prior to This Meeting ⚫Integrated Model Updates ⚫GSP Writing Update ◼Sustainable Management Criteria (SMC) ⚫Review of SMC ⚫Summary of Sustainability Goal Survey ⚫Water Quality ⚫Subsidence Outline DRAFT Summary of the Sustainability Goal Survey 18 ◼Vision: What does sustainable groundwater management look like in Ukiah Valley Groundwater Basin? ◼Overarching goals: If groundwater is managed sustainably in Ukiah Valley Groundwater Basin, what it has achieved? ◼Worst-case scenario: What does the worst-case scenario look like in UVGB if GW is not managed sustainably? DRAFT Summary of the Sustainability Goal Survey 19 Vision Adequate Water for All Needs Maintain High Quality Water Balanced Use and Stabilized Water Levels Plan for Water Security Water Conservation Support GDEs No SW Depletion Issues No Negative Changes from Existing Variability Overarching Goals Avoid Govt. Intervention/Fees/Over- Regulation Stakeholder Satisfaction Water Availability Riparian Biodiversity Improved Stakeholder Relations Maintain High Water Quality Long-term Water Security Worst Case Scenarios Metered Pumping/Fees Water Use Limits Endanger & Degrade Water Resources Poor Relations among Stakeholders GW Depletion/GDE Threats Fallowing of Ag Lands Desert Landscape Economic Decline Environmental Degradation DRAFT Sustainability Goal 20 The primary sustainability goal of this GSP is to manage the groundwater basin locally to ensure the short-term and long- term supply of safe and high-quality water for the beneficial uses and users of the basin through: ❖coordination and collaboration among stakeholders; ❖maintaining or improving groundwater levels in the basin; ❖maintaining appropriate flows in surface water bodies for GDEs and improving riparian biodiversity by managing surface water depletion; ❖building local resiliency to climate change, long-term droughts, and infrastructural changes; and, ❖providing proper management actions and operational flexibility to achieve long-term sustainability. DRAFT Question? 21 DRAFT ◼State of GSP Prior to This Meeting ⚫Integrated Model Updates ⚫GSP Writing Update ◼Sustainable Management Criteria (SMC) ⚫Review of SMC ⚫Summary of Sustainability Goal Survey ⚫Water Quality ⚫Subsidence Outline DRAFT SUSTAINABLE MANAGEMENT CRITERIA –WATER QUALITY 23 DRAFTBefore Considering the “Thermometer” we need to understand “Treatment” Options: GSP Projects & Management Actions for Water Quality ◼Existing regulatory agencies (and programs): ⚫State and Regional Boards, Department of Toxic Substances Control, Department of Pesticide Regulation ◼GSA is the main steward of groundwater basin sustainability (closer to the “pulse” than state) ◼GSA has monitoring duties ◼In case of man-made pollution: May act as a proactive “facilitator” to move forward on processes that protect groundwater quality ◼For recharge/pumping projects: ⚫Consider effects on existing man-made pollution ⚫Consider effects on existing naturally occurring contaminants 24 DRAFT Ukiah: Data Selection and Approach ◼Databases pulled from ◼Groundwater Ambient Monitoring and Assessment Program (GAMA) ◼California Integrated Water Quality System (CIWQS) ◼Total number of wells ◼629 wells with water quality data ◼384 wells with water quality data from 1990-2020 ◼Parameters ◼207 unique analytes ◼Time period (earliest to latest) ◼11/11/1950 –11/25/2019 DRAFT Chemicals of Concern (Shortlist) 26 Constituent Units Applicable Regulation Regulatory Threshold Boron, Total mg/L DW Notification Level 1.0 Iron, Total µg/L Secondary MCL 300 Manganese, Total µg/L Secondary MCL 50 Nitrate mg/L as N Primary MCL 10 Specific Conductance µmhos/cm Secondary MCL 900 (Recommended) 1,600 (Upper) 2,200 (Short Term) DRAFT Boron All wells with data within the basin (32 wells) Colors based on Notification Levels demonstrated in California Division of Drinking Water; highest measured value in well Red = Above 1 mg/L (420) Yellow = Above 0.5 mg/L (83) Green = No exceedance (164) DRAFT 28 Boron Concentrations in a Selected Set of Monitoring Wells DRAFT Iron All wells with data within the basin (66 wells) Colors based on CCR Title 22; highest measured value in well Red = Above 300 µg/L (177) Yellow = Above 150 µg/L (24) Green = No exceedance (36) DRAFT Iron Concentrations in a Selected Set of Monitoring Wells DRAFT Manganese All wells with data within the basin (62 wells) Colors based on CCR Title 22; highest measured value in well Red = Above 50 µg/L (501) Yellow = Above 25 µg/L (66) Green = No exceedance (30) DRAFT Manganese Concentrations in a Selected Set of Monitoring Wells DRAFT Nitrogen (as N) All wells with data within the basin (64 wells) Colors based on CCR Title 22; highest measured value in well Red = Above 10 mg/L (1) Yellow = Above 5 mg/L (21) Green = No exceedance (558) DRAFT Nitrate Concentrations in a Selected Set of Monitoring Wells DRAFT Specific Conductivity All wells with data within the basin (50 wells) Colors based on CCR Title 22; highest measured value in well Red = Above 900 mg/L (10) Yellow = Above 450 mg/L (27) Green = No exceedance (305) DRAFT Specific Conductivity Measurements in a Selected Set of Monitoring Wells DRAFT Example Dataset SMC Option A: Threshold = MCL 37 Triggers Threshold (MT) Measurable Objective (MO) DRAFT Example Dataset SMC Option B ◼Long-term (30 year) trend ⚫Is either negative (downward) ⚫Or does not increase by more than 0.1 unit-per-year over the current (1990-2020) trend 38 Triggers DRAFT Suggestions from the TAC ◼There is no significant WQ issues within the basin that need to be addressed. ◼The proposed list of COCs are sufficient ◼Set triggers equal to MCL, SMCL, and NLs. ◼Existing monitoring network to be used for WQ. ◼Objective for WQ is to maintain the current status, considered as high water quality within the basin. 39 DRAFT Question? 40 DRAFT ◼State of GSP Prior to This Meeting ⚫Integrated Model Updates ⚫GSP Writing Update ◼Sustainable Management Criteria (SMC) ⚫Review of SMC ⚫Summary of Sustainability Goal Survey ⚫Water Quality ⚫Subsidence Outline DRAFT SUSTAINABLE MANAGEMENT CRITERIA –SUBSIDENCE 42 DRAFT Subsidence of the land surface is an undesirable result for SGMA Lowering groundwater levels Reduction in storage Seawater intrusion Degraded water quality Land subsidence Surface water depletion DRAFT DRAFT Subsidence data available for Mendocino Co. InSAR satellite-derived subsidence data product is the only known dataset for Mendocino Co. to use for GSPs Data available from mid 2015- 2018 Additional 2018-2019 data expected by April 2019 DRAFT DRAFT Subsidence data for Ukiah Valley 45 DWR assessed that there was no documented groundwater-extraction induced subsidence of concern DRAFT DRAFT 46 Subsidence data for Ukiah Valley 2015-2018 DRAFT InSAR error from calibration and conversion is ~0.1 ft Data display largely noise considering the range of both the data and the error are equivalent DRAFT Suggestions from the TAC ◼There is no undesirable results or need to address subsidence within the basin ◼Existing data provided by DWR to be used for tracking subsidence status in the basin. 47 DRAFT Thank you! Questions?