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![Page 1: Water and Land Use: The Efficiency Connection Mary Ann Dickinson Executive Director California Urban Water Conservation Council.](https://reader035.fdocuments.in/reader035/viewer/2022070412/56649e625503460f94b5ea09/html5/thumbnails/1.jpg)
Water and Land Use: The Efficiency Connection
Water and Land Use: The Efficiency Connection
Mary Ann Dickinson
Executive DirectorCalifornia Urban Water Conservation Council
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Water Resources in the USA Total Withdrawals
Water Resources in the USA Total Withdrawals
![Page 3: Water and Land Use: The Efficiency Connection Mary Ann Dickinson Executive Director California Urban Water Conservation Council.](https://reader035.fdocuments.in/reader035/viewer/2022070412/56649e625503460f94b5ea09/html5/thumbnails/3.jpg)
Infrastructure CostsInfrastructure Costs
> $50> $50
$40 - $50$40 - $50
$30 - $40$30 - $40
$20 - $30$20 - $30
$10 - $20$10 - $20
< $10< $10
$Billions
20 Year Drinking Water and Clean Water Infrastructure Needs by EPA Region
WAMT
ID
OR
NV
CA
WY
UT CO
NMAZ
ND
TX
OK
KS
NE
SD
MN
IA
MOIL
WI
MI
IN OH
KY
TNAR
LA
MSAL
GA SC
NC
WV
PA
NY
ME
FL
MDVA
DE
NJ
CT RI
MA
VT
NH
10
9
8
7
6
5
4
3
2
1
AK
10 HI
9GU
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Effects of GrowthEffects of Growth
Water Resources and Population Growth, 2000-2020Source: DOE/NETL (M. Chan, July 2002)
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600,000 people and over 200,000 homes per year
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Residential Water UsageResidential Water Usage
Landscape58%
Clothes Washers
9%
Showers7%
Toilets11%
Dish Washers
1%
Baths1%Other
7%
Faucets6%
Source: AWWRF Residential End Uses of Water, 1999
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AB 2717AB 2717
• Became law September, 2004• CUWCC formed Landscape Task Force to
review landscape water issues, make recommendations for improvements
• Representatives from water suppliers, landscape & building industries, cities & counties, environmental groups, and state & federal agencies
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We Finished It!We Finished It!
• 43 recommendations
• 76 specific actions to implement the recommendations
• Top 12
• AB 1881 submitted
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New Technology Programs New Technology Programs
EtWeather
Data
ForIrrigation
Scheduling
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The Study AreaThe Study Area
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Study ObjectivesStudy Objectives
• Characterize Runoff Quantity and Water Quality– Dry Weather
– Storm Conditions
• Evaluate Methods of Reducing Runoff
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Study DesignStudy Design
ControlNeighborhood
#1
ControlNeighborhood
#2
ControlNeighborhood
#3
EducationNeighborhood
Retrofit andEducation
Neighborhood
Flows to San Diego Creekand Newport Bay
= Water quality and flow monitoring locations
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Study FindingsStudy Findings
• 41.2 gpd saved annual average with ET controllers and education
• 25.6 gpd saved with education
• 64-71% runoff flow reduction in combined area
• 79% runoff reduction in one specific neighborhood
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Study ImplicationsStudy Implications
• Landscape water not just a drought issue or even a peaking issue
• Multiple environmental benefits of regional and statewide significance
• An important partner in basin management: Runoff reduction, pollutant reduction, reduced wastewater treatment, reduced green waste management
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Green Building Issues Green Building Issues
• LEED (USGBC) only awards 6 points for water efficiency
• LEED Water Efficiency Technical Advisory Group working to make significant improvements (Council participation)
• Other green building initiatives similarly weak on water efficiency
• “California Friendly” and “Smart from the Start” pilot programs in California
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California Friendly
“ Active Family”
California Friendly
“ Active Family”