Water Conservation in the San Diego Region Bill Jacoby San Diego County Water Authority North Bay Water Association April 2, 2004

 Wholesale supplier – 23 member agencies – Provide up to 90% of county’s water supply  5 Pipelines – 263 miles (gravity flow)  Emergency storage reservoir  Service area 909,000 acres San Diego County Water Authority SDCWA SERVICE AREA

Water Supply Portfolio 2003 Conservation 6% Recycled Water 2% Local Surface Water 5% Groundwater 2% MWD Imported 85% 2020 Recycled Water 6% MWD Imported 24%-33% IID Transfer 21% Canal Lining Transfer 9% Local Surface Water 9% Groundwater 6% Conservation 10% Seawater Desalination 6%-15%

Local Resources to Meet Demand  Water Conservation  Recycled Water  Groundwater  Seawater Desalination  Surface Water

UWMP  Projected water resources mix for 20 years  Plan must be updated every 5 years  Must describe water demand management, i.e., conservation, measures

CUWCC  California Urban Water Conservation Council  Increase efficient water use statewide through partnerships among urban water agencies, public interest organizations, and private entities  Three signatory groups – Urban water suppliers – Public interest groups – Other interested parties  Memorandum of Understanding

Best Management Practices  Urban Water Conservation Practices intended to reduce California’s long-term water use  Reduce the State’s water demand using sound economic criteria.  Integrate urban water conservation practices into planning and management of California’s water resources – 14 BMPs – 11 PBMPs  CALFED

Long-Term Supply Option  Demand Management  Saves capital & operating costs – Utility – Consumer  Avoids environmental impacts  Reliable local supply  Reduces wastewater flows

Short-Term Supply Option  Look for immediate water savings  Implement in times of drought or other emergencies  For the last decade the focus has been on long- term demand management  Helps avoid peaking

Success of Conservation Programs  Between fiscal year 1990 and 2003 – Population increased by 16.7% – Total water use remained virtually the same  Attributable to strong commitment to water conservation

Water Use  Outdoor use is greatest residential water use  Toilets are greatest indoor residential water use

Residential Conservation Programs  Residential HEW Program – 29,300 clothes washers have been replaced – Saved 3,180 AF  Residential ULFT Program – Retrofitted 481,100 old toilets – Saved 134,680 AF  Showerheads – Retrofitted 556,500 old showerheads –Saved 37,470 AF

CII Conservation Programs  Water-Pressurized Brooms – Saves 50,000 GPY  Hospital X-Ray Film Processors – Saves 1,042,723 GPY

CII Conservation Programs  Pre-Rinse Spray Valves – Saves 100,000 GPY  Multi-Load Clothes Washers for Laundromats – Saves 100,000 GPY  ULFTs/urinals

Landscape Conservation Programs  Residential Survey Program

Landscape Conservation Programs  Professional Assistance for Landscape Management – Site evaluation and comprehensive report  Eto Landscape Irrigation Controllers – Commercial & Residential

Future Landscape Programs  Eto Landscape Irrigation Controllers – Commercial ° Saves 479,073 GPY – Residential ° Saves 47,900 GPY  Commercial Landscape Incentives Program – Small, commercial landscapes for hardware to improve irrigation efficiency – Saves 8,341,786 gallons per site

Future Landscape Programs  Landscape Conservation Outreach – Target nurseries and home improvement stores – On-the-spot education to customers on the water the horticultural needs of plants

School Education Programs  18 programs for K-12 th grade  Reaches 125,000 students a year  Serves 700 school countywide

Conservation Message Strategies  Available tools to relay conservation message – Conservation materials – Newsletters – Bill inserts – Web sites – Water conservation garden tours – Special events – Speakers bureau – Conservation classes – School Water Education Program