Contra Costa County Climate Leaders Workshop October 3, 2013 Maureen Martin (CCWD)

Water Resources Management Contra Costa County

Contra Costa Water DistrictEast Bay Municipal Utility District

Contra Costa County Climate Leaders WorkshopOctober 3, 2013

Maureen Martin (CCWD)

Paul Gilbert-Snyder (EBMUD)

Contra Costa County Climate Leaders Workshop October 2013

Presentation Overview

• CCWD & EBMUD supplies and service areas• Anticipated future changes in supply &

demand• Water management strategies• Additional resources


EBMUD & CCWD Service Areas in Contra Costa County


Average Annual Bay Area Water Demands

EBMUDEBMUD

CCWDCCWD

Zone 7Zone 7

SCVWDSCVWD

Note:1 acre-foot of water serves 2-3 families in one year

48,000 acre-feet200,000 people

330,000 acre-feet1.8M people



120,00 acre-feet500,000 people


EBMUD’s Existing Water Supply System


EBMUD’s Pardee and Camanche Reservoirs

EBMUD’s Mokelumne Aqueducts

EBMUD’s Dry Year Supplemental Supply (FRWP)

EBMUD’s Local Storage Reservoirs

Contra Costa Water District Supply System


‘Normal Year’ Water Supply Portfolio of CCWD Service Area


Potential Changes due to Climate Change

Supply• Changes in timing and

quantity of precipitation in the Sierras

• Sea level rise could increase sea water intrusion into the Delta, decreasing amount of time surface diversions are suitable quality

Demand• Increased air temperatures

could increase outdoor demands

• Changes in local precipitation could change water demands

• Changes in development could change water demands


Water Management Strategies

• Increase Conservation• Increase Water Recycling/Reuse• Diversify Supply Portfolio• Acquire New Supplies


Water Conservation Act of 2009 (SBX7-7)

20% reduction in per capita water use by the year 2020

Each urban retail water supplier must develop water use targets by July 1, 2011 and the following must be included in the UWMP: • Baseline daily per capita water use • 2015 interim water use target • 2020 water use target



CCWD SBX7-7Interim and Compliance Water Use

• Additional plumbing code savings• Continued conservation programs• New conservation programs

• CII • Fixtures• Landscape

• Recycled water

EBMUD SBX7-7Interim and Compliance Per Capita Water Use

Baseline = 165 GPCD

10-year (1995-2004)

Projected 2020Conservation

And Recycling144 GPCD

• Baseline = 165 GPCD

• Min. 5% 2020 Target = 150 GPCD

• Calc. 2020 Target = 175 GPCD

• UWMP Target = 150 GPCD

• 2015 Target = 158 GPCD

• Suppressed demand during drought recovery will help achieve 2020 water use target.

• Projected demand goal in 2020 lower than 2020 water use target.

Use Less, Conserve More

CCWD Conservation Program• Water use evaluations• Rebates• Water budget• Educational materials

EBMUD Conservation Program• Water use evaluations• Rebates• Water budget • Grey water/Rain water• Landscape ordinances


CCWD Conservation Services


• Indoor Water Use Evaluations– Review all indoor water use– Identify inefficient fixtures– Provide recommendations for replacement or repair

• Landscape System Evaluation– Review existing watering schedule– Inspect sprinkler system– Provide site-specific watering schedule and set controller with

customer– Provide site specific recommendations for improving long term

water use efficiency

• Rebate Program– Lawn to garden conversion– High efficiency toilets and clothes washers– Smart Irrigation Timers– Commercial devices and fixtures

• Water Budgets– Site specific estimate of landscape water demand– Compare weekly meter readings to ensure use is on budget

EBMUD Conservation Program


• Indoor Water Use Evaluations– Indoor water use surveys– Commercial/Industrial water use surveys– Provide recommendations for equipment upgrades

• Landscape System Evaluation– Landscape water surveys– Landscape water budgets– Leak detection– Landscape irrigation upgrades– Landscape ordinances– Graywater/Rainwater harvest

• Rebate Program– High efficiency toilets, clothes washers, dish washers– Smart Irrigation Timers– Commercial devices and fixtures

Recycle and Reuse

CCWD Service Area• Central Contra Costa Sanitary

District– Concord/Pleasant Hill

landscape irrigation– Future Concord Naval Weapons

Station development• Delta Diablo Sanitation District

– Pittsburg/Antioch irrigation– Dow wetlands– Power plants

• Current Use: ~ 9 mgd• Future Use: ~ 14 mgd

EBMUD Service Area• North Richmond Water

Reclamation Plant & Richmond Advanced Recycled Expansion– Industrial boilers & cooling

towers at Chevron refinery• San Ramon Valley Recycled

Water Project– Irrigation

• Current Use: ~ 7.6 mgd• Future Use: ~ 20 mgd (by 2040)


Diversify Supply Portfolio


EBMUD Future Drought Supply Portfolio

Note: Customer rationing limited to 15%

Acquire New Supplies

• Purchase imported water from other parties– Sept 2013 EBMUD & CCWD successfully completed a one time transfer

from Woodbridge Irrigation District

• Pump more groundwater– Cities of Brentwood, Pittsburg pump their own groundwater– Bay Point receives groundwater from Golden State Water Company– Oakley receives groundwater from Diablo Valley Water District

• Develop groundwater banking conjunctive use programs

• Obtain/increase water rights for local streams• Desalinate surface or groundwater

– Bay Area Regional Desalination Project has completed site specific analyses of a possible facility at Mallard Slough Intake


Additional Information & References

CCWD References• CCWD Water Conservation Office

Chris Dundon (925) 688-8136 [email protected]

• CCWD Water Supply Publicationshttp://www.ccwater.com/

publications/index.asp?sec=ws

EBMUD References• Conservation Contacthttp://www.ebmud.com/water-and-

wastewater/watersmart-center

• Water Supply Publicationshttp://www.ebmud.com/water-and-

wastewater/water-supply

• Climate Changehttp://www.ebmud.com/climate-change


Bay Area Regional Desalination Projecthttp://www.regionaldesal.com/

Questions

• CCWDMaureen [email protected](925) 688-8323

• EBMUDPaul [email protected](510) 287-0432


Contra Costa County Climate Leaders Workshop October 3, 2013 Maureen Martin (CCWD)

Documents

climate changesupplychanges

compliance water

water demandschanges

water usebaseline

acrefoot of water

water use targets

water conservation act

interim water use target