DIRECTORS 43885 SOUTH GRIMMER BOULEVARD • FREMONT, CALIFORNIA 94538 MANAGEMENT (510) 668-4200 • FAX (510) 770-1793 • www.acwd.org

ROBERT SHAVER AZIZ AKBARI General Manager JAMES G. GUNTHER KURT ARENDS Operations and Maintenance JUDY C. HUANG LAURA J. HIDAS PAUL SETHY Water Resources JOHN H. WEED ED STEVENSON

Engineering and Technology Services JONATHAN WUNDERLICH Finance

NOTICE OF SPECIAL MEETING OF THE ACWD BOARD OF DIRECTORS

Date: January 28, 2021 Time: 4:00 P.M. Location: MEMBERS OF THE PUBLIC MAY NOT ATTEND THIS MEETING IN PERSON. DUE TO THE COVID-19 AND IN ACCORDANCE WITH GOVERNOR NEWSOM’S EXECUTIVE ORDER N-25-20 WHICH SUSPENDS PORTIONS OF THE BROWN ACT, THIS MEETING WILL BE CONDUCTED WEBINAR OR TELECONFERENCE ONLY.

MEMBERS OF THE PUBLIC MAY PARTICIPATE IN THIS MEETING VIA WEBINAR https://us02web.zoom.us/j/84465589120, OR BY CALLING ANY OF THE FOLLOWING PHONE NUMBERS: 1-669-900-9128 OR 1-346-248-7799 OR 1-301-715-8592 FOLLOWED BY 844 6558 9120.

Please Take Notice that the Alameda County Water District Board of Directors hereby calls a special meeting on January 28, 2021 at 4:00 P.M., via Webinar/Teleconference, at which time the Board will convene for the following purposes: 1. Roll Call 2. Salute to the Flag 3. Public Comments on Matters on this Notice of Special Meeting 4. Water Resources Planning Workshop 5. General Manager’s Report 6. Director’s Comments and/or Agenda Item Requests 7. Adjournment

This Notice of Date, Time and Location of this special meeting of the Alameda County Water District Board of Directors is given this 25th day of January 2021.

Date this Notice Posted: January 25, 2021

Gina Markou, District Secretary ALAMEDA COUNTY WATER DISTRICT 43885 So. Grimmer Boulevard Fremont, CA 94538

SPECIAL BOARD OF DIRECTORS MEETING

A G E N D A

January 28, 2021

4:00 P.M.

ACCESSIBLE PUBLIC MEETINGS: Upon request, ACWD will provide written agenda materials in appropriate alternative formats, or disability-related modification or accommodation, including auxiliary aids or services, to enable individuals with disabilities to participate in public meetings. Please send a written request at least 72 hours before the meeting to the District Secretary, ACWD, 43885 S. Grimmer Blvd., Fremont, CA 94538, or to [email protected] stating your name, mailing address, phone number, and brief description of the requested materials and preferred alternative format or auxiliary aid or service.

MEMBERS OF THE PUBLIC MAY NOT ATTEND THIS MEETING IN PERSON. DUE TO THE COVID-19 PANDEMIC AND IN ACCORDANCE WITH GOVERNOR NEWSOM’S EXECUTIVE ORDER N-25-20 WHICH SUSPENDS PORTIONS OF THE BROWN ACT, THIS MEETING WILL BE CONDUCTED BY WEBINAR OR TELECONFERENCE ONLY.

MEMBERS OF THE PUBLIC MAY PARTICIPATE IN THIS MEETING VIA WEBINAR https://us02web.zoom.us/j/84465589120 OR BY CALLING ANY OF THE FOLLOWING PHONE NUMBERS: 1-669-900-9128 or 1-346-248-7799 or 1-301-715-8592 FOLLOWED BY 844 6558 9120.

MEMBERS OF THE PUBLIC ARE ALSO ENCOURAGED TO SUBMIT COMMENTS TO THE DISTRICT SECRETARY AT [email protected] AT LEAST ONE HOUR PRIOR TO THE SCHEDULED START TIME OF THE MEETING. PLEASE VISIT THE DISTRICT’S WEBSITE (www.acwd.org) REGULARLY TO BE UPDATED ON THE CURRENT SITUATION AS IT AFFECTS PUBLIC MEETINGS.

1. ROLL CALL

2. SALUTE TO THE FLAG

3. PUBLIC COMMENTS ON MATTERS ON THIS NOTICE OF SPECIAL MEETING

4. WATER RESOURCES PLANNING WORKSHOP

This workshop follows and builds upon a series of three Board workshops held in calendar years 2019 and 2020 that focused on a number of water resources planning-related topics, including: forecast customer water demands, water use efficiency and conservation, long- term management of the District’s imported and local water supply portfolio, future water

A G E N D A JANUARY 28, 2021 PAGE 1 supply opportunities, the current and future regulatory framework, and updates to the District’s urban water management and integrated resources planning policies, criteria and strategies.

Specifically, this workshop will focus on topics related to the District’s long-term management of existing water supplies and future water supply opportunities, including:

• Los Vaqueros Reservoir Expansion (LVE) Project Updates • Update on (SBA) Reliability Initiatives • Semitropic Groundwater Banking Program Updates

5. GENERAL MANAGER’S REPORTS

6. DIRECTOR’S COMMENTS AND/OR AGENDA ITEM REQUESTS

7. ADJOURNMENT

A G E N D A JANUARY 28, 2021 PAGE 2 Alameda County Water District

Water Resources Planning Workshop

ACWD Special Board Meeting January 28, 2021 Presentation Outline

• Workshop Introduction & Goals • Los Vaqueros Reservoir Expansion (LVE) Project Updates • South Bay Aqueduct (SBA) Reliability Initiatives • Semitropic Groundwater Bank Program Updates • Next Steps

2 Workshop Introduction

• Past 2019-2020 Planning Workshops • Strategic Plan Goal #2: Sustain a reliable, high quality water supply for District customers. • Participating today: – Contra Costa Water District (CCWD) – Department of Water Resources (DWR)

3 Workshop Introduction

• Initiatives not covered today: – 2020-2025 Urban Water Management Plan – Water Efficiency Master Plan – ACWD Sustainable Groundwater Management Act (SGMA) Planning – Climate Change Adaptation Planning – Integrated Resources Planning – Bay-Delta Water Quality Control Plan / Voluntary Agreements

4 Workshop Goals

• Update the Board on key issues related to long-term water supply management – SBA Reliability Initiatives – Semitropic Groundwater Bank • Receive an update on LVE Project Activities • Share progress and receive additional Board feedback on LVE Joint Powers Authority formation

5 Los Vaqueros Reservoir Expansion PROJECT UPDATES

6 Los Vaqueros Reservoir Expansion (LVE) Project Updates • Contra Costa Water District Updates • Joint Powers Authority Agreement Development Status • Review of ACWD’s Interests and Potential Participation Scenario • Modeling Availability of SBA Capacity

7 CCWD PRESENTATION LVE PROJECT UPDATES

8 ACWD Board Workshop Los Vaqueros Reservoir Expansion Project CCWD Presentation

January 28, 2021 1 Existing Los Vaqueros Reservoir

• Los Vaqueros Reservoir is an off-stream reservoir in Contra Costa County with a capacity of 160,000 acre-feet (AF) • Contra Costa Water District (CCWD) operates Los Vaqueros Reservoir in conjunction with four Delta intakes • Benefits: – Water quality improvements – Drought supply reliability – Emergency supply 2 Primary Project Benefits

• Increased Municipal & Industrial Supply • Agricultural Supply • Wildlife Refuge Supply • Central Valley Project (CVP) Operational Flexibility • Drinking Water Quality Improvements

3 Proposed Facilities

4 Local Agency Partners (LAPs)

• Central Valley Project (CVP) Contractors: • Contra Costa Water District CCWD • City of Brentwood • East Bay Municipal Utility District • San Luis & Delta-Mendota Water Authority EBMUD • Byron-Bethany Irrigation District • Del Puerto Water District Los Vaqueros • Panoche Water District SFPUC Reservoir • Westlands Water District • Valley Water Zone 7 • State Water Project Contractors: • Alameda County Water District BAWSCA ACWD SLDMWA • Valley Water GWD • Zone 7 Water Agency • State, Federal, Local Wildlife Refuges: • Grassland Water District Valley Water • Regional Partners: • East Bay Municipal Utility District • San Francisco Public Utilities Commission • Bay Area Water Supply and Conservation Agency 5 LAP Options for Participation

• Dedicated Storage • Reserved for individual agency use • Pooled Storage • Unreserved for use by any LAP • Conveyance Only • Utilize existing and future conveyance facilities • LAPs are currently evaluating various scenarios of participation that best meet their needs and retain future flexibility • Methodology and pricing under development

6 Preliminary Cost Allocation

• Cost allocation shown in million dollars • Cost estimates from Final Feasibility Report (August 2020) • State allocation based on 2015 dollars with initial inflation adjustment • In January 2021 the State award was increased by 2.5%; additional increases are possible • Dual classification (Reservoir Reoperation and CALFED Surface Storage) allows State award greater than 50% of total cost 7 Preliminary LAP Costs • Dedicated Storage • Approximate average of $1,700 to 2,700/acre-foot • Pooled Storage • Approximate average of $700 to 900/acre-foot • Conveyance Only • Approximate average of $400/acre-foot • All preliminary costs are currently being updated to reflect: • Reduced CCWD usage fees • Reduced construction cost estimates • Updated LAP requests and operations modeling 8 Environmental Document Finalized

• Document published in February 2020 • CCWD certified document, approved Project and filed Notice of Determination in May 2020 • Tolling period concluded without any legal challenges in September 2020

9 Final Feasibility Report Published 8/11/20

• Secretary of Interior determined LVE Project is feasible and recommended for implementation • Project authorization provides for federal cost sharing up to 25% • $11.95 million in federal funding approved in December 2020 for pre- construction and construction activities

10 Current Status on Key Activities

• Permitting, Design, and Agreement Development are Ongoing • Change Petitions for Modifying Existing Water Rights in Development • Other Key Agreements: • Service Agreement • Coordinated Operations Agreement • DWR Agreements • Funding Agreements

11 Los Vaqueros Reservoir JPA Formation

• CCWD and Local Agency Partners (LAPs) intend to form new Joint Powers Authority (JPA) • Target date for formation is Spring 2021 • JPA Purposes and Objectives • Provide governance of the Project by the LAPs and ensure all parties have a seat at the table • Ensure sufficient and stable funding for the Project, including administrative and support activities as required, through separate agreements • Ensure costs are reasonable and cost allocations are equitable and transparent, following beneficiaries pay principle • Ensure reliable delivery of water to the LAPs consistent with the terms of the future Service Agreements

12 Los Vaqueros Reservoir JPA Formation

• JPA Role • Enter into contracts for administration of public benefits • Enter into state and federal funding agreements • Finance LAP share of construction • Coordinate LAP and wildlife refuge requests for service • Monitoring and reporting • CCWD Role • Manage Early Funding Agreement with California Water Commission (CWC) • Continue to operate intakes, reservoir and LV Watershed • Provide additional services under contract to the JPA as required

13 Near Term Schedule

Spring 2021 JPA formation Fall 2021 Amend Multi-party Agreement or Execute Interim Funding Agreement Spring 2022 California Water Commission Final Award Hearing Mid 2022 Start Construction of Earliest Project Component (Pumping Plant No. 1) Late 2022 JPA issues debt for LAP cost share of construction (last LAP offramp in Service Agreement)

14 Thank You!

For more information:

CCWD Project Website www.ccwater.com/lvstudies Reclamation Project Website www.usbr.gov/mp/vaqueros/index.html

Contact Info: Marguerite Patil Assistant General Manager – Policy and External Affairs Contra Costa Water District P. O . B o x H 2 O Concord, CA 94524 (925) 688-8018 [email protected]

15 Proposed Project

New Facilities • Expand Reservoir from 160 to 275 TAF • Add Transfer- Bethany Pipeline, connecting to the at

16 Project Benefits to LAPs and Wildlife Refuges

17 Long Term Schedule

18 Agreements Needed Prior to Construction

CWC DWR Reclamation LVE BOs USWFS & SWP Water Rights CVP Water Rights Modifications Modifications NMFS Final Permits Turn-in Entry Permit Final Funding Agreement Federal Agreement SWRCB Cost-share ~$447M LVE Agreements Coordinated USACE Operations LVE Contract for Agreement Coordinated Operations Admin. of LV Water Rights Final Public Benefits Modification Agreement Conveyance Permits Agreements

SHPO JPA CCWD

Final Contract for Permits Admin. of Public LVE ITP DSOD Benefits CDFW 19 Questions?

9 LVE Joint Powers Authority Agreement Development Status • Previous ACWD Board input on issues was generally addressed • Voting Thresholds – Staff has recommended revisiting some thresholds • Veto Rights & Special Voting Provisions – Current draft language addresses most concerns • JPA Withdrawal & Indebtedness Provisions – Continuing discussions toward resolution

10 What are ACWD’s interests in Los Vaqueros?

Location, location, location.

Old River Intake • Adjacent to SWP • South of Delta yet “Upstream” of ACWD • Provides emergency/ resiliency for Delta outage • Potential to capture Delta surpluses

11 What are ACWD’s interests in Los Vaqueros?

• Could provide more operational flexibility

Old River Intake • Facilitate easy transfers to and from any and all LVE partners and sources of water

12 What are ACWD’s interests in Los Vaqueros? • 10,000 AF* ‘share of storage’ in the reservoir • Storing SWP** water, Semitropic returns, and “transfer water” • Capturing Delta surpluses - CCWD or SWP water rights • Some emergency storage - but not to the detriment of the project’s ability to capture surpluses

13 *AF = Acre-feet **SWP = State Water Project Cost / Benefit

• Preliminary modeling suggests 2,000 AF per year of new supply on average, mostly from wet or average years • Cost of participation is under evaluation – Range of possible costs – Updates expected this spring

14 Modeling Availability of SBA Capacity

Goals and Criterion for Capacity Analysis: • Determine if the South Bay Aqueduct (SBA) has sufficient spare capacity for partnering by non-State Water Contractor entities (SFPUC and BAWSCA) for potential future projects such as Los Vaqueros Expansion • South Bay Contractors’ planned use is first priority • Additional partners could improve regional reliability and provide additional funding for SBA improvements Updates: • Brown & Caldwell completed SBA capacity analysis work (November 2020) • ACWD served as technical lead • Previous ACWD-designed model was verified and further refined with historical operations and DWR operational availability data • Study shows good potential for capacity sharing • Updated model is currently under review by SFPUC and BAWSCA BAWSCA = Bay Area Water Supply & Conservation Agency SFPUC = San Francisco Public Utilities Commission 15 Questions?

16 SOUTH BAY AQUEDUCT RELIABILITY INITIATIVES

17 South Bay Aqueduct (SBA) Reliability Initiatives

• SBA / DWR Coordination Efforts • Department of Water Resources SBA Reliability Initiatives Update

18 SBA / DWR Coordination Efforts

• SBA reliability is critical to current & future operations for ACWD & partner agencies* • System is aging • Past rehabilitation efforts • SBA agencies requested condition assessment in February 2018 • SBA / DWR Coordination Meetings – Monthly routine operational coordination – Bi-monthly leadership check-ins; workplan • Dedicated SBA Reliability Project Manager *SBA agencies include ACWD, Santa Clara Valley Water District & Zone 7 Water Agency 19 DWR PRESENTATION SBA RELIABILITY INITIATIVES UPDATE

20 CALIFORNIA DEPARTMENT OF WATER RESOURCES South Bay Aqueduct South Bay Aqueduct (SBA) SBA Details/History

 ~44.7 Mile System with Approximately 11 Miles of Canal, 31.8 Miles of Pipeline, and 1.9 Miles of Tunnel.  It was the first State Water Project System to be constructed.  SBPP has 13 units with total pumping capacity of 511 cfs  Dyer, Patterson and Del Valle provide inline storage  SBA supply water for over 2 Million People  Serves Zone 7 Water District, Alameda County Water District, and Valley Water District  Between 2001-2012 approx. $400M was invested on SBA enlargement and improvement contracts. SBA Key Major Improvements :

• SBA Communication upgrade in 1993

• SBA Pipeline Rehabilitation 2000-2003 • Bayside isolation valve • Replaced upgraded pipeline auxiliary parts • 580 freeway tunnel was upgraded • Relocate ~ 550 ft of SBA SCPL near MP 39 SBA Key Major Improvements :

• SBA Expansion Project (2003-2012) • Addition of four 45 cfs units (includes one spare unit) • Dedicated 69KV power to the South Bay Pumping Plant. • Construct new 425 acre-foot Dyer Reservoir • Replace seven check structures to include the installation of new radial gates, actuators, motors and control systems • Raised Patterson dam and 13 miles of canal lining and embankment. • Seismic Retrofits of Surge Tanks 1 and 2

• SBA Reliability Project (2014-2016) • Completed slope stability analyses • Modified blowoff at MP 34.28 • Installed inclinometers • Completed geology summary based on LiDAR data • Completed slope stability analyses • Install Kubota pipeline SBA Initiatives to Improve Reliability

Short Term Projects

. Minimize Unplanned Outages

. Asset Management Plan

Mid Term/Long Term

. Implement Operational Improvements

. Implement Maintenance Improvements

. Long Term Solution to SBA Geological Hazards . WEKO-SEALS are a flexible rubber leak clamp WEKO-SEALS that provide a tight seal around the full circumference of a pipe joint; it is essentially a RETAINING BAND TEST trenchless system for internally stopping leaking VALVE joints. .They can be used on other cracked or leaking locations and have some flexibility for displacement or expansion.

PCCP, STEEL, OR FLEXIBLE OTHER PIPE WEKO-SEAL Start Operational SBA Reliability Improvements Milestone Improvements (Q2’2020)

Start Maintenance Improvements (Q2’2020)

Start Tactical Asset Management Plan

(Q2’2020)

Start Short ‐ Term Reliability Improvements (Q1’2020)

2020 2021 2022 2023

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

Complete Short ‐Term Complete Operational Reliability Improvements Improvements (Q3’2023) (Q1’2021)

Complete MIR ** Complete Tactical Asset Management Plan Complete Maintenance Improvements (Q1’2023) (Q1’2021) (Q3’2021)

** SBA Monitoring, Investigation & Repair (MIR) Process Started Q3’2019 Questions? Questions?

21 Semitropic Groundwater Bank PROGRAM UPDATES

22 Semitropic Groundwater Bank Program Updates

Semitropic Groundwater Management

Banking Program Performance

Point of Delivery Agreement Update

23 Semitropic Groundwater Management

24 Semitropic Groundwater Management • South Bay Contractors Water Banking Semitropic SGMA Coordination Group – Monitor Overall SGMA (submittal and implementation) – Monitor Water Quality • Arsenic • 1,2,3-Trichloropropane (1,2,3-TCP) • Nitrates – Evaluate Potential Implications (current and future) SGMA=Sustainable Groundwater Management Act 25 Semitropic Banking Program Performance

• 150,000 AF groundwater bank in the Central Valley, envisioned as a dry year reliability project to store surplus State supplies in wet years for use in dry years. • Semitropic Water Storage District outperformed expectations during the recent drought, returning 9% more water in both 2014 & 2015 than committed to under contract. • Requires State Water Project to execute “exchanges” to get water. Issues in 2014 were tied to SWP and not SWSD. • Good value: fully loaded cost ~ $400 to $500/AF for reliable dry year supply; competitive with Dry Year water costs but with greater assurances.

26 Semitropic Banking Program Expanding Value

• 2011 Integrated Resources Plan (IRP) Review – modeling found revised operating concept to optimize both dry year reliability and reduce long-term costs through avoided SFPUC purchases in moderate dry years. • ACWD has exercised this operation during the past decade, returning 22,000 AF of Semitropic specifically to optimize for cost. IRP algorithms estimate the savings to be ~ $13.5M. • Previously stated “$400- $500/AF” price for Semitropic does not include lifecycle benefit of this cost optimization. • Additional lessons learned during the drought – expanding value of Semitropic with coordinated operations. We are working to solidify this practice.

SFPUC = San Francisco Public Utilities Commission 27 Point of Delivery Agreement Update • Agreement between ACWD, Department of Water Resources, and Kern County Water Agency • Includes provisions regarding delivery and return of ACWD’s SWP supplies stored in Semitropic Groundwater Banking Program • Ten-year term for delivery to Semitropic, to be extended with updated agreement • Reflects lessons learned from drought • Coming to Board in early spring

28 Questions?

29 Next Steps

• Future Board actions on: – Los Vaqueros Reservoir Expansion JPA Formation and Letter of Intent – Semitropic Point of Delivery Agreement • Routine Water Resources & Conservation Committee updates on other topics • Coming soon! – Annual Groundwater Monitoring & Survey Reports – Water Efficiency Master Plan & Urban Water Management Plan

30 Thank you!

31 2020 Urban Water Management Plan – Schedule

• Draft Urban Water Management Plan (UWMP) documents due for internal review third week of March 2021 – General UWMP updates and any updated assumptions presented at the March 2021 Water Resources & Conservation Committee Meeting – Draft UWMP planned to be made publicly available mid to late April 2021 • Public hearing and adoption of the following final UWMP documents planned for the May 2021 Board meeting: – 2020 UWMP – Water Shortage Contingency Plan (WSCP) – 2015 UWMP addendum for the Reduce Reliance appendix • ACWD to submit 2020 UWMP, WSCP, and 2015 UWMP addendum for the Reduce Reliance appendix to DWR no later than July 1, 2021

32 Hydrogeologic Zone 01 - 1 (Average Spring Measurements)

0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425 2030 Avg. Water Level (bgs) 450 Measurable Objective

Depth to Water (ft) to Water Depth 475 500 525 550 2040 Avg. Water Level (bgs) 575 600 Minimum Threshold 625 650 675 700 725 750 775 800

PageHZ01-1 19 Lower Zone Attachment 1 Page 1 of 1 Groundwater Sustainability Plan 015 2 • • • Change InStorage Groundwater level declinecould increase costs and diminishwater quality Reduce deficit to ~0 AFYby2040 166 AFYaverage annualdeficits + depletioningroundwater storage, pre-GSP Page 24 Page

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