The Future of Water Supply for California s Cities. March 2, 2016

Transcription

1 The Future of Water Supply for California s Cities March 2, 2016

2 Current Situation End of a four-year drought? Supplies stretched but not broken Significant and unprecedented state action Relatively modest impacts to economy and resources EBMUD Ranger Supervisor Mark Bolton examines Camanche Reservoir s dry lake bed. Folsom Lake, January 16,

3 Water Supply Goals Protect Public Health and Safety Minimize direct and indirect economic impacts Find certainty in an uncertain future o o o Climate Weather Regulations 3

4 Strategies Collaborate regionally Improve local storage Recharge groundwater aquifers for dry years Expand water recycling Explore stormwater capture Encourage conservation Use new conservation technologies Explore the water-energy nexus 4

5 Collaboration: Freeport and Multiple Partners Freeport project built by EBMUD and Sacramento County Water Agency Central Valley Project (CVP) contract with Bureau of Reclamation (1) 1 New Bullards Bar Reservoir (YCWA) Hell Hole Reservoir (PCWA) Water Transfer Partners: 2. Placer County Water Agency 3. Yuba County Water Agency Freeport Regional Water Project Glenn-Colusa Irrigation District Folsom Dam (CVP) 5. Sycamore Mutual Water Co. 6. Reclamation District 1004

6 Storage Example: Los Vaqueros Reservoir Expansion Study Contra Costa Water District recently expanded from 100 TAF to 160 TAF Provides beneficial west-ofdelta storage EBMUD and CCWD considering how to optimize new conveyance and increased storage CCWD and Bureau of Reclamation studying expansion to 275 TAF 6

7 Groundwater Approximately 38% of CA s total water supply Up to 46% of CA s annual supply in dry years Sustainable Groundwater Management Program (SGMA) will address challenges: o Subsidence o Reduced groundwater levels o Salt water intrusion o Management of shared basins The injection and extraction well at EBMUD s Bayside Groundwater Project Groundwater Supply compared to total usage in California 7

8 Groundwater Example: San Joaquin County EBMUD Demonstration Project Divert surface water from Mokelumne River in wet years Bank water in Eastern San Joaquin Groundwater Basin Leave some water in basin to improve its condition Return some water to EBMUD service area via Mokelumne Aqueduct in dry years Demo Site 8

9 Recycled Water In 2009 (most recent survey) 669,900 acrefeet of recycled water was used in California. Public understanding and demand for recycled water is increasing State Water Resources Control Board Prop. 1: $625M for water recycling projects (loans and grants) Survey by State Water Resources Control Board 9

10 EBMUD s Recycled Water Program Current supply: 9 MGD 2040 goal: 20 MGD Collaboration with Dublin- San Ramon Services District 43 customers in San Ramon 40 new sites in 2016 East Bayshore project Oakland, Emeryville, Berkeley, Albany, Alameda 26 customers and growing 10

11 Recycled Water: North Richmond and RARE Partnership with Chevron Largest industrial reuse project in Northern California North Richmond over 20 years in operation for cooling towers RARE (Richmond Advanced Recycled Expansion) online 2010 to serve boiler makeup water Recycled water production: 4.2 MGD from North Richmond & 1.9 MGD from RARE in FY

12 Stormwater Example: Rooftop Capture Study Findings acre feet could be captured assuming a robust, system-wide program Conclusions Evaluate collection opportunities at larger public sites and new developments Current program Rebates for stormwater systems provided on a case-by-case basis EBMUD s urban watersheds 2,500 gallon storage tank 12

13 Water Conservation: Single-Family Water Demand Single-Family Avg. Seasonal Demand (MGD) Notes: (1) Summer Use based on July, August consumption data. (2) Winter Use based on December, January consumption data SFR Summer SFR Winter 35 13

14 Conservation Trends Past Present Future Response to episodic droughts Savings through behavior modification Few conservation incentives Low cost of water Uniform water rates General education Long-term planning, population growth, environment Savings from retrofits Indoor residential becoming saturated Higher cost of water Inclining block, tiered & budget rates Standards, codes and advanced metering Response to Climate Change Savings through information services Smart Cities: waterenergy- wastewater Outdoor, CII and supply-side focus Price-signal key: cost of water, sewer, energy increasing still Enhanced web and mobile services 14

15 Investments in Water Conservation $7 million+ for FY 16 budget $85 million investment since the 1992 development of the first master plan $1.25M in Prop. 84 and USBR rebate/direct installation grant-funding in FY

16 Water Conservation Planning Water Use Efficiency Supply Chain Water Management Education & Outreach Conservation Incentives Regulation & Legislation Supply Side Conservation Research & Development Web services Calculators How to videos Water surveys Water budgets Leak notification Public education Marketing Community events Conservation workshops Training & certifications Plumbing Fixtures Appliances Landscaping Irrigation Systems Process Equipment Customized Water- Efficiency Requirements Individual & Landscape Metering CalGreen Model Landscape Ordinance Leak Detection Pipeline Replacement Water Facility Audits Pressure anagement Distribution Monitoring Water-Use Information Meter Technology Product testing and labeling (i.e. WaterSense, Energy Star) Plan check review

17 Water & Information Management: Customer Engagement Initiatives Online Home Water Works calculator Home Water Report to 69,000 singlefamily customers Modified landscape irrigation water budgets for irrigators Expanded distribution of home selfsurvey kits Web services: WaterSmart Center tips, videos, tutorials 17

18 Conservation Technology: Budgets & Advanced Metering 18

19 Supply Side Conservation Leak detection Real Loss Meter accuracy Updated EBMUD facility audits & efficiency plans Fixed Network Leak Detection Pilot Study (Kensington & Oakland) Apparent Loss District Metered Area (Kensington & Danville) Pressure management 19

20 EBMUD Water-Energy Nexus EBMUD energy costs: $11 million per year Minimize Energy Use & Costs Water conservation Energy efficiency and self generation projects Optimize pumping and treatment 20

21 EBMUD Water-Energy Nexus Renewable Energy Projects Energy recovery (hydroelectric 40 MW) Wastewater co-generation (11 MW MWWTP) Solar power (Photovoltaic 1.2 MW) Natural gas microturbines (600 kw) GHG Reduction Goals Carbon neutral by 2040 Research Smart metering End user services Water loss control Demand management 21

22 Looking Ahead California s varied climate creates significant water supply challenges Climate change could further increase scarcity of supplies and competition for resources Water agencies have developed well-rounded supply portfolios to achieve multiple objectives Public involvement and regional partnerships are key to success Need to include all markets/participants in water efficiency solutions (urban users, ag, environmental, manufacturing, retail, landscape professionals, etc.) 22