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

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Water Resources Overview

Julie Ortiz, Water Conservation Manager San Francisco Public Utilities Commission

Services of the San Francisco Public Utilities Commission

Agenda

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

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SFPUC Water Use by Customer Sector

• For FY 14-15

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

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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

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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

• ur reservoirs for distribution
• Water distributed to our

customers will continue to exceed all drinking water standards

Groundwater blend will be distributed throughout the City

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

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Harding Park and Sharp Park Golf Courses Irrigated with Recycled Water

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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

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SFPUC Looks to Alternate Water Sources for Non-potable Applications

Precipitation collected from roofs and above- grade surfaces Precipitation collected at or below grade Nuisance groundwater from dewatering

• perations

Wastewater from clothes washers, bathtubs, showers, and bathroom sinks Wastewater from toilets, dishwashers, kitchen sinks, and utility sinks

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

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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

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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 Julie Ortiz, Water Conservation Manager; jnortiz@sfwater.org or (415) 551-4739

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@SFWATER

• r visit www.sfwater.org