12:00 noon 7. Tour of the Silicon Valley Water Advanced Water Purification Center

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1 Joint Recycled Water Policy Advisory Committee Pat Burt, Council Member, City of Palo Alto Tom DuBois, Council Member, City of Palo Tony Estremera, Board Member, Santa Clara Valley Water District Gary Kremen, Board Chairperson, Santa Clara Valley Water District Barbara Keegan, Board Member, Santa Clara Valley Water District AMENDED AGENDA Joint Recycled Water Policy Advisory Committee (City of Palo Alto/SCVWD) Silicon Valley Advanced Water Purification Center Visitor s Center 4190 Zanker Road San José, CA WEDNESDAY, JULY 29, :00 AM to 12:00 NOON Time Certain: 10:00 a.m. 1. Call to Order/Roll Call 10:05 a.m. 2. Time Open for Public Comment on Any Item Not on the Agenda Comments should be limited to two minutes. If the Committee wishes to discuss a subject raised by the speaker, it can request placement on a future agenda. 3. Election of Chair and Vice Chair: 4. Action Items: 4.1 Develop Recycled Water Recommendations to Governing Bodies (G. Hall/H. Ashktorab) Recommendations: A. Review and Discuss Recycled Water Policies B. Review and Discuss Recycled Water Expansion Planning C. Review and Discuss Potential Collaboration on Recycled Water initiatives 5. Clerk Review and Clarification of Committee Requests and Recommendations This is an opportunity for the Clerk to review and obtain clarification on any formally moved, seconded, and approved requests and recommendations made by the Committee during discussion of Item Adjourn: Adjourn to Next Meeting 12:00 noon 7. Tour of the Silicon Valley Water Advanced Water Purification Center REASONABLE EFFORTS TO ACCOMMODATE PERSONS WITH DISABILITIES WISHING TO ATTEND COMMITTEEE MEETINGS WILL BE MADE. PLEASE ADVISE THE CLERK OF THE BOARD S OFFICE OF ANY SPECIAL NEEDS BY CALLING (408) Meetings of this committee will be conducted in compliance with all Brown Act requirements. All public records relating to an open session item on this agenda, which are not exempt from disclosure pursuant to the California Public Records Act, that are distributed to a majority of the legislative body will be available for public inspection at the same time that the public records are distributed or made available to the legislative body, at the following locations: Santa Clara Valley Water District Clerk of the Board Unit 5700 Almaden Expressway San Jose, CA Palo Alto City Hall Office of the City Clerk 250 Hamilton Avenue Palo Alto, CA Joint Recycled Water Committee Purpose: The City of Palo Alto and District Elected Officials Joint Recycled Water Committee was established for the purpose of developing a long-term proposal for how the District and the City of Palo alto can work together on recycled water opportunities, to advance common interests, and to establish a collaborative process to facilitate policy discussion and sharing of technical information on recycled water issues.

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3 COMMITTEE AGENDA MEMO Committee: Joint RW Committee Meeting Date: 07/29/2015 Agenda Item No.: 4.1 Committee: G. Hall SUBJECT: Develop Recycled Water Recommendations to Governing Bodies RECOMMENDED ACTION: A. Review and Discuss Recycled Water Policies B. Review and Discuss Recycled Water Expansion Planning C. Review and Discuss Potential Collaboration on Recycled Water Initiatives SUMMARY: In March 2014, the District initiated communications with the City of Palo Alto to facilitate policy-level discussion on recycled water and recommended the formation of a committee of elected officials to develop policies and direction for recycled and purified water expansion. In May 2014, Palo Alto s Mayor agreed to form a Joint Recycled Water Committee. Separately, the District has contractual relationships with the City of San José (the administrative agency for South Bay Water Recycling) and with the South County Regional Wastewater Authority. More recently, the District has entered into agreements with the City of Sunnyvale and California Water Service Company to build facilities and supply recycled water to the new Apple campus in Cupertino. The County is in the fourth successive year of an extreme drought. Groundwater net extractions totaled 80,000 acre-feet (AF) in 2014 despite the District Board s call for 20 percent water use reduction over 2013 water usage. Facing continued drought conditions and shortages in water supply, on March 25, 2015 the District Board called for a countywide water use reduction target of 30 percent and a two-days-per-week limit on irrigating outdoor ornamental landscapes with potable water. The potential for land subsidence, which could impact infrastructure in the North County, is of great concern to the District s Board and other elected officials in the county based on the potential for continuing dry years and the potential impacts of local and imported water shortages on groundwater levels. The District s long-term water supply plans identify recycled and purified water sources as significant water supply additions for the county, leading up to an additional 30,000 AF of new supplies by Given the ongoing drought conditions, an Expedited Purified Water Program Page 1 of 4

4 SUBJECT: Develop Recycled Water Recommendations to Governing Bodies 07/29/2015 was been launched recently to provide capability for up to 45,000 acre-feet per year (AFY) of indirect potable reuse (IPR) by 2020 at an estimated cost of $800 million in current dollars. The initial phase of purified water projects would be in the category of IPR, in which purified water is used to supplement groundwater recharge from other existing sources (imported and local stored water). Subsequent phases may entail conversion of the IPR projects, in part, or development of additional projects to provide Direct Potable Reuse (DPR), in which highly purified water could be blended with raw water for treatment at the District s conventional water treatment plants prior to distribution to retailers. RECYCLED WATER POLICIES: District Policies The Board s Governance Policies and CEO Interpretations guide development of the recycled water program. The Board s water supply goal related to recycled water is contained in E-2.1- Current and future water supply for municipalities, industries, agriculture and the environment is reliable. The Board s water supply objectives are contained in the following Ends Policies: E-2.1.4: Protect, maintain and develop recycled water, and E-2.1.1: Aggressively protect groundwater from the threat of contamination and maintain and develop groundwater to optimize reliability and to minimize land subsidence and salt water intrusion. CEO Interpretation of these Ends Policies calls for the District to develop recycled water to meet at least 10 percent of County demands by The Board s Policy direction is to ensure that there is a reliable, clean water supply for current and future generations (Policy No E-2) and the associated Board Objective (2.1.1) is currently at risk of not being achieved due to the ongoing drought conditions and low availability of imported and local water supplies. While use of available supplies has enabled the District to provide water to the retailers during the current unprecedented drought, the District did not attain its planning goal of meeting at least 90 percent of demand in 2014 and may not do so again in Development of additional recycled water supply under Board Objective for recycled water is an important component in alleviating the shortfall to the community. Palo Alto Policies To be supplied. DISTRICT S POTABLE REUSE PLANNING: In 2014, the District and City of San José completed the South Bay Water Recycling (SBWR) Strategic and Master Planning Report. The SBWR Strategic and Master Planning Report evaluated opportunities to increase the use of recycled water from the San José/Santa Clara Regional Wastewater Facility and initiate the use of purified water for potable reuse including treatment at an expanded Silicon Valley Advanced Water Purification Center and at second smaller satellite facility. Four candidate IPR/DPR projects, (a) through (d) below, were identified for implementation in a phased delivery approach. A potential fifth project, (e) the extension of the Wolfe Road recycled water pipeline in Sunnyvale, while not evaluated extensively in the SBWR Strategic and Master Planning Report, is also potentially viable. Page 2 of 4

5 SUBJECT: Develop Recycled Water Recommendations to Governing Bodies 07/29/2015 The five projects are as follows: (a) (b) (c) (d) (e) Ford Recharge Ponds IPR Mid-Basin Injection Wells IPR Los Gatos Recharge Ponds IPR Westside Injection Wells IPR or Central Pipeline DPR Sunnyvale IPR Location of the five projects is shown in Figure 1. Figure 1: Proposed Purified Water Projects The District s Board, on April 28, 2015, authorized the CEO to execute consultant contracts to initiate development of the Expedited Purified Water Program comprising the above five projects, with a target date of 2020 for construction completion. Page 3 of 4

6 SUBJECT: Develop Recycled Water Recommendations to Governing Bodies 07/29/2015 Table 1 summarizes the capacity, estimated capital costs, and estimated annual operations and maintenance costs for the above-described five proposed projects. Table 1 Project Cost Summary Description Capacity (AFY) Est. Capital Costs ($M) Ford Recharge Ponds IPR 1 4,200 $70 Mid-Basin Injection Wells IPR 2 5,600 $140 Los Gatos Recharge Ponds IPR 3 0,200 $260 Westside Injection Wells IPR 4 (or Central Pipeline DPR) 5,000 (5,000) $120 ($65) Sunnyvale IPR 5 10,000 $210 Total 45,000 $800 1,2,3,4 South Bay Water Recycling Master Plan; 5 IPR Treatment Study, Carollo Engineers PALO ALTO RECYCLED WATER PLANNING: The City of Palo Alto operates its Regional Water Quality Control Plant that serves the cities of Palo Alto, East Palo Alto, Mountain View, and Los Altos, the town of Los Altos Hills, and Stanford University. Recycled water produced at this plant currently serves Mountain View and Palo Alto. In 2014, the recycled water system delivered approximately 3,100 AF of non-potable reuse water, and deliveries are projected to increase to 4,000 AFY by Palo Alto has completed a Facility Plan that is intended to extend recycled water pipelines further into Palo Alto and allow the city to increase recycled water use. The Facility Plan recommended construction of approximately five miles of pipeline, retrofitting a recycled water pump station, constructing a new booster pump station, and constructing approximately five miles of lateral pipelines to over 90 use sites. These projects would initially serve approximately 900 AFY of non-potable reuse water, mostly to the Stanford Research Park Area. POTENTIAL COLLABORATION ON RECYCLED WATER INITIATIVES: District and City of Palo Alto staffs have periodically held discussions on recycled water programs and have beneficially shared planning information. The District contributed funds in the past to identifying solutions to the salt water ingress problem involving City of Mountain View wastewater pipelines feeding Palo Alto s Regional Water Quality Control Plant. Palo Alto recycled water experts have, for quite some time, served along with District personnel on a county Retailer recycled water subcommittee. Now, the District and City of Palo Alto, with the oversight of the Joint Recycled Water Committee, may identify collaborative efforts that offer benefits to the City of Palo Alto and the County and, further, may recommend actions by their respective governing bodies to pursue such collaborative efforts. ATTACHMENT(S): Attachment 1: PowerPoint Presentation Page 4 of 4

7 JOINT RECYCLED WATER POLICY ADVISORY COMMITTEE Pat Burt, Council Member, City of Palo Alto Tom DuBois, Council Member, City of Palo Tony Estremera, Board Member, Santa Clara Valley Water District Gary Kremen, Board Chairperson, Santa Clara Valley Water District Barbara Keegan, Board Member, Santa Clara Valley Water District DRAFT Joint Recycled cled Water Advisory Committee (City of Palo Alto/ SCVWD) Wednesday, July 29, Review Committee Formation and Purpose The Recycled Water Joint Committee advises its respective governing bodies on: Policy matters related to production, distribution and use of recycled water in the county Potential collaboration between the District and the City on recycled water initiatives Potential cost sharing between the District and the City on recycled water initiatives 2 Page 1 of 21

8 Presentation Overview 4.1 Develop Recycled Water Recommendations to Governing Bodies RECOMMENDED ACTION: A. Review and Discuss Recycled Water Policies B. Review and Discuss Recycled Water Expansion Planning C. Review and Discuss Potential Collaboration on Recycled Water Initiatives 3 A. Review and Discuss Recycled Water Policies 4 Page 2 of 21

9 District Recycled Water Policy Board Ends Policy: E-2.1 (Goal): Reliable Water Supply E (Objective): protect, t maintain, i and develop recycled water E (Objective): protect maintain, and develop groundwater Outcome Measure: At least 10% by 2025 Strategies: Partnerships with producers Potable reuse Maximize reliability and minimize costs and impacts 5 Palo Alto Recycled Water Policy TBD 6 Page 3 of 21

10 B. Review and Discuss Recycled Water Expansion Planning 7 District s Recycled Water Planning Palo Alto: Solution Project Cost Sharing Conversation on Regional Supplies Sunnyvale: Potable Reuse Feasibility Study Sunnyvale Recycled Water Master Plan Committed: Wolfe Road Pipeline 50-yr Integration Agreement District Wholesaler role District Recycled Water Master Planning SBWR: Potable Reuse Feasibility Study 40-yr Integration Agreement SVAWPC Operations Agreement District partner role (SVAWPC) SBWR Master Plan SCRWA: Agreement Wholesaler South County Recycled Water Master Plan 8 Page 4 of 21

11 County Recycled Water Supplies Diversified portfolio for a reliable supply Imported water Local surface & groundwater Conservation Recycled Water 9 District s Water Supply Infrastructure Master Plan (10,000 AF) (110,000 AF) (154,000 AF) 10 Page 5 of 21

12 District s Water Supply Infrastructure Master Plan How we plan to fill the gap: Additional conservation New groundwater recharge ponds Non-potable recycling (20,000 AF) Potable reuse (20,000-30,000 AF)* *Recent planning has increased this target 11 Goals and Targets 50,000 WSIMP Goal 2035 year) Recycled Water Use (acre-ft / 40,000 30,000 20,000 10,000 10% Recycled Water Countywide Target (2025 Goal) Non-Potable Use Reuse Potable Reuse Non-Potable Reuse Calendar Year 12 Page 6 of 21

13 2014 Recycled Water Use Wastewater Treated (AF) Recycled Water (AF) Facility San Jose/Santa Clara Regional Wastewater Facility 120,975 15,886 (13.1%) Palo Alto Regional Water Quality Control Plant 30,000 3,325 (11.1%) Sunnyvale Water Pollution Control Plant 15, (5.8%) South County Regional Wastewater Authority 8,000 2,015 (25.2%) TOTAL 175,000 22,144 (12.7%) 13 Partnerships South Bay Water Recycling SJ/SC RWF SVAWPC Legend Existing Recycled Water Pipeline 140 Miles of Pipeline Delivery 15,600 AFY in Year Integration Agreements Silicon Valley Advanced Water Purification Center Master Planning (2014) Page 7 of 21

14 Partnerships Sunnyvale Sunnyvale Water Pollution Control Plant Wolfe Road Recycled Water Pipeline Wolfe Road Apple Campus 2 Legend Existing Recycled Water Pipeline Planned Recycled Water Pipeline 15 Partnerships South County Regional Wastewater Authority Legend Existing Recycled Water Pipeline Planned Recycled Water Pipeline *Planned/Future Customers Page 8 of 21

15 Santa Clara County Groundwater At-A-Glance 17 Potential Impacts to Groundwater due to Extended Drought Page 9 of 21

16 Planned Potable Water Reuse Projects Palo Alto WPCP Sunnyvale WPCP SJ/SC Regional Wastewater Facility Legend IPR/DPR Purified Water Pipeline Mid-Basin Injection Wells IPR - 5,600 AFY Future Wolfe Road Pipeline Existing Recycled Water Pipeline District Raw Water Pipeline Expanded SVAWPC Water Pollution Control Plant Water Treatment Plant Pump Station DPR to Central Pipeline -5,000 AFY Sunnyvale IPR Westside Injection Wells IPR Los Gatos Recharge Ponds IPR - 20,200 AFY Ford Recharge Pond IPR 4,200 AFY Proposed Potable Water Reuse Projects for Expedited Development Proposed Projects for Purified Water Expansion Description Est. Total O&M Capacity Ext. Capital Costs (AFY) Costs ($M) 6 ($M/Year) Ford Recharge Ponds IPR 1 4,200 $ 70 $ 4.0 Mid-Basin Injection Wells IPR 2 5,600 $ 140 $ 3.5 Los Gatos Recharge Ponds IPR 3 20,200 $ 260 $ 10.0 Westside Injection Wells IPR 4 (or Central Pipeline DPR) 5,000 (5,000) $ 120 ($ 65) $ 4.0 ($ 4.5) Sunnyvale IPR 5 10,000 $ 210 $ 2.0 Total 45,000 $ 800 $ ,2,3,4 South Bay Water Recycling Master Plan; 5 IPR Treatment Study, Carollo Engineers; 6 As presented in the March 12, 2015, agenda memo, these costs are at a planning level of development and should be considered within a range of -20% to + 100% 20 Page 10 of 21

17 Preliminary Timeline 21 Building on Success 22 Page 11 of 21

18 SVAWPC, Operational Since April Silicon Valley Advanced Water Purification Center 24 Page 12 of 21

19 Benefits Silicon Valley Advanced Water Purification Center (SVAWPC) Water quality benefit Operational benefit Demonstration of potable reuse benefit The highest quality water tomorrow from the best available technology today Silicon Valley Advanced Water Purification Center 0.1 micron micron Incoming TDS = 750 ppm 2 6 Outgoing TDS= 40 ppm Page 13 of 21

20 Palo Alto s Recycled Water Planning Last updated in December 2008 City updating City of Palo Alto Recycled Water Facility Plan during 2015? Strategic Infrastructure Plan improvements at Palo Alto Regional Water Quality Control Plan 27 *Wastewater Treatment Plant 28 Page 14 of 21

21 *Energy Use at City of Palo Alto Facilities 29 *Inside the Wastewater Treatment Plant 30 Page 15 of 21

22 *Palo Alto s Recycled Water Project is Phase 3 of Program Expansion 31 * Upstream source water TDS TDS mass from moderate additions of 350 mg/l Excess TDS entering the collection system Estimated upstream TDS from source water 32 Page 16 of 21

23 * 33 *Historical Ammonia and Flow Ammonia Concentration (m mg/l) Influent Flow (mgd) Ammonia Flow 34 Page 17 of 21

24 *Biosolids Facility Space 35 * Title: Treatment? Artist: Linda Gass, copyright 2009 Photo: Don Tuttle 36 Page 18 of 21

25 Palo Alto Master Plan Recycled Water Classification Number of Customers Demand Acre Feet per Year (AFY) Existing Potential Irrigation TBD 779 Industrial TBD 137 Overall Total *RWQCP Regional Recycled Water System Expansion Phases 38 Page 19 of 21

26 Palo Alto Master Plan TBD 39 C. Review and Discuss Potential Collaboration on Recycled Water Initiatives Recycled Water Joint Committee July 29, Page 20 of 21

27 Potential Collaboration Topics for Discussion: Common interests in expansion of recycled water Recycled water quality improvement Grant solicitation for projects Future potable water reuse site? Brine management solutions Other Recycled Water Joint Committee July 29, Next Steps? 42 Page 21 of 21

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