Water Resources Overview Julie Ortiz, Water Conservation Manager - PowerPoint PPT Presentation

Services of the San Francisco Public Utilities Commission Water Resources Overview Julie Ortiz, Water Conservation Manager San Francisco Public Utilities Commission 1

Agenda • Water Supply & Drought Response Overview • SFPUC Local Water Program • Groundwater Projects • Recycled Water Projects • Non-Potable Water Program • Conservation Services 2

SFPUC Water Use by Customer Sector • For FY 14-15 3

Emergency Drought Restrictions • State mandated reductions from 8% to 36%; for SFPUC retail area: • Continued call for 10% reduction; 25% for outdoor irrigation • Expanded water waste restrictions • Continued public outreach • Monthly reporting to state 4

Total Deliveries

Total System Water Savings

SFPUC Develops New Local Water Supplies in San Francisco • Groundwater: pump water and blend with surface water supplies for potable purposes during normal and drought years • Recycled Water: treat wastewater for non-potable applications for irrigation in parks and golf courses and for toilet flushing in buildings

San Francisco Groundwater High Quality Source of Local Water • Extensive monitoring of groundwater (45 wells) since 2000: high quality source of water • A small quantity of groundwater will be blended (10- 15%) in our reservoirs for distribution Groundwater blend will be • Water distributed to our distributed throughout customers will continue to the City exceed all drinking water standards 8

Groundwater Storage and Recovery Project • Regional project in partnership with Daly City, San Bruno and Cal Water (current groundwater pumpers) • Groundwater extraction during multi-year drought • Propose 16 wells to extract 7.2 mgd for 7.5 years • In-Lieu Recharge Project 9

Harding Park and Sharp Park Golf Courses Irrigated with Recycled Water 10

Westside Recycled Water Project • Build new treatment facility within Oceanside Plant • Construct approximately 8.4 miles of new pipeline • Customers include Golden Gate Park, Lincoln Park Golf Course and portions of the Presidio 11

SFPUC Looks to Alternate Water Sources for Non-potable Applications Precipitation collected from roofs and above- grade surfaces Wastewater from toilets, dishwashers, kitchen sinks, and utility sinks Precipitation collected at or below grade Wastewater from clothes washers, bathtubs, showers, and bathroom sinks Nuisance groundwater from dewatering operations

Non-potable Ordinance UPDATE • July 2015: Ordinance amended to mandate onsite water reuse for toilet flushing and irrigation in all new developments greater than 250,000 square feet. • Beginning Nov. 1, 2015 for all projects within Recycled Water Zone. • Beginning Nov. 1 2016 for all projects City-wide.

Non-potable Program Assistance • Program includes assessment calculator and grant assistance • 34 projects since program inception • Minimum 100,000 sq ft and 1 million gallons per year offset to qualify

Comprehensive Conservation Program • Average 44 gallons per person a day • Remaining opportunities: • Old fixtures and equipment • Large, leaking, wasteful users • Large landscapes • Code compliance • Multi-family and commercial sectors 15

SFPUC Conservation Assistance • Online portal for viewing daily water use and leak alerts • Free indoor/outdoor conservation evaluations • Free water-efficient devices and materials • Showerheads, aerators, pre-rinse spray valves, toilet leak detection tablets and flappers, spray nozzles, plumbing and gardening handbooks, signage • Fixture rebates and incentives • Tank and flushometer toilet and urinal rebates and direct install • Residential and commercial clothes washer rebates • Large commercial equipment rebates and grants • Large landscape and community garden grants • Residential graywater and rain barrel incentives • Free gardening classes and school programs • Educational guides and materials

Tools to Help Customers Manage Water Use • “My Account” web portal for viewing daily water use • Leak alert program • Checklists for assessing water efficiency 17

Case Study: Hotel • Replaced 433 toilets at 3.5 gpf with 1.28 gpf models • Estimated project cost of $148,000 • Received $54,000 rebate from SFPUC • Reduced annual water use by about 4.5 million gallons (~36%) • Reduced annual water and wastewater costs about $80,000 • Project payback of 1.2 years

Case Study: Office Building • Replaced 144 toilets at 3.5 gpf with 1.28 gpf models • Replaced 72 urinals at 1.5 gpf+ with less than 0.5 gpf models • Estimated project cost of $136,000 • Received $65,000 rebate from SFPUC • Reduced water use by about 4.6 million gallons (~33%) • Reduced annual water and wastewater costs about $57,000 Project payback of 1.2 years

For More Information @SFWATER or visit www.sfwater.org Julie Ortiz, Water Conservation Manager; jnortiz@sfwater.org or (415) 551-4739 20