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Austin Water UtilityAustin Water Utility140 Gallons per Capita per Day (GPCD)140 Gallons per Capita per Day (GPCD)
Conservation PlanConservation Plan
January 27, 2011
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Presentation Outline
Purpose, Background & Context
Overview of the 140 Plan
Focus and Next Steps
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Purpose
May 2010 City Council accepted the Citizens WaterConservation Implementation Task Force (CWCITF) reportand directed AWU to develop an action plan to reduce
water use to an average of 140 GPCD by 2020.
The resolution calls for the plan to include:
Technical and cost-benefit evaluations of recommendations
A 10 year conservation action plan that incorporates educationalprograms, marketing & outreach and cost beneficial strategies
An implementation schedule, responsibility and estimated watersavings and costs
An analysis to assist City Council in assessing whether the goalis achievable
Report back to City Council
Written report with plan details
Presentation overview
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Austin Conservation History
Strong customer incentives in 1990s and 2000s
Implementation began in 2007
Aggressive conservation rates since 1994
2006 Council goal to reduce peak use 1% per yearover 10 years
Implementation began in 2007
Mandatory watering restrictions
Reclaimed water system investments
Plumbing Code changes
Implemented 5th tier for residential high users in 2010
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GPCD from FY 1990 to 2010
120
130
140
150
160
170
180
190
200
FY
1990
FY
1992
FY
1994
FY
1996
FY
1998
FY
2000
FY
2002
FY
2004
FY
2006
FY
2008
FY
2010
GPCD
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140 Plan Background
Where does the 140 number come from?
2004 Texas Water Development Board (TWDB) reportrecommended Best Management Practices (BMPs)
Report suggests goal to reduce water use by at least 1%annually until reaching 140 gallons per capita per day
TWDB recommended using GPCD to measure internalprogress, not to compare between cities
Austins Plan and TWDB Recommendations Through historical and current conservation programs,
Austin has addressed 21 of 22 TWDB BMPs
The 140 Plan reduces water use by 1.52% per yearaverage
Pending legislation (SB 181) recommends movingto uniform GPCD reporting
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140 Plan Overview
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Developing the 140 Plan
Staff analyzed over 100 recommendations fromthe CWCITF
Quantified savings and costs using research from othercities, AWWA, Alliance for Water Efficiency, WaterResearch Foundation
Established six overarching program goals used
in selecting strategies Reach 140 GPCD goal by 2020
Reduce peak demand
Pursue cost-effective strategies
Ensure conservation reaches all customer sectors
Ensure consumer awareness of conservation
Promote innovation in water conservation
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Developing the 140 Plan
Staff screened CWCITF potential measures usinga tool developed by the Alliance for Water
Efficiency Selected strategies showed eitherpositive
benefit-cost ratio orcomplemented one of the
other program goals. After screening, final package of strategies
analyzed for 10-year financial impact
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New Conservation Strategies
0.00 0.50 1.00 1.50 2.00 2.50
Irrigation Design Review
Limitations on Irrigated Area
Water Waste Administrative Enforcement
Retrofit Packages for Commercial Sectors
Retrofit Packages for Institutions
A/C Condensate
Extend 2x w eek watering schedule
Reclaimed Program Marketing
Stormw ater Reuse Ordinance
Large Meter Testing Program
Pilot Test Irrigation Devices
Improve Irrigation Audit Follow-up
Estim ated GPCD Reduction by 2020
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Projected Savings by Task Force
0
5
10
15
20
25
30
35
40
45
50
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
GPCDS
avings
CWCITF
2007 WCTF
Existing
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Easy-Moderate Implementation
Shift some funding from incentives to water wasteenforcement
Extend mandatory watering schedule to year-roundfor residential customers
Market to customers along existing reclaimed lines
Pursue contracts to market retrofit packages tocommercial and institutional sectors
Transition to administrative enforcement of waterwaste fines
Implement marketing & education strategies
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Additional Stakeholder Input Needed
Impose limits on irrigated area forresidential and commercial customers
Implement irrigation design plan review
Implement conservation rates forcommercial & multifamily customers
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CWCITF Recommendation Examples
Residential Customers
Limit new permanent irrigation systems to no more than2.5 times building footprint
Require design plan review of new systems Would apply to both new development and existing
properties installing a new system or major modificationsto existing system
Sample ratios: Mueller development ~ 1.6 ratio of landscape to footprint
Avery Ranch ~ 2.9 ratio of landscape to footprint
Circle C ~ 3.4 ratio of landscape to footprint
Commercial & Multifamily Customers Limit new permanent irrigation systems to no more than
1.5 times the required landscape area
Require design plan review of new systems
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140 GPCD Plan
Average Per Capita Demands
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60.0
80.0
100.0
120.0
140.0
160.0
180.0
200.0
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
G
allo
n
s
p
er
C
apit
a
p
er
D
ay
(G
P
C
D)
With Program Savings
Dry Year (+10%)
Wet Year (-15%)
140 Goal
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Financial Impact
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140 GPCD Plan Financial Impacts
Total Water Rate Impact of
Achieving 140 GPCD by 2020 25% to 35%
In 2020, revenue will be reduced by approximately $100 millionon an annual basis
Less: Rate Impacts Included
In Previous Forecast 7% to 11% Reclaimed Water
Other Conservation Programs
Net Additional Water Rate
Increase Through 2020 18% to 24%
Average Residential Customer
Water Bill Impact by 2020 $9 to $10 /mo
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140 GPCD Plan Financial Impacts
Possible strategies for addressing revenue lossassociated with 140 plan:
Increase rates
Operating Cost reductions/Service reductions
Create new fees (Conservation Rider) to offset lost revenue
Increase development and other fees
Possible strategies for addressing increasedrevenue volatility associated with conservation
Higher reserves
Higher minimum charge
Increase blocks 1 & 2 more than 3-5
Mid-Year / Emergency rate changes during periods of very lowusage
Add a variable component to rates that could be adjustedperiodically as system-wide usage increases or decreases
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Focus and Next Steps
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Summary
The report provided includes the detail on the items calledfor in the Council Resolution:
Technical and cost-benefit evaluations for Task Forcerecommendations
A 10 year conservation action plan that incorporates educationalprograms, marketing & outreach and cost beneficial strategies
An implementation schedule, responsibility and estimated watersavings and costs
An analysis to assist City Council in assessing whether the goalis achievable
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Next Steps
Continue implementation of 2007 Task ForceStrategies
Closely monitor GPCD Legislation Continue involvement in LCRA Water
Management Planning Process
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LCRA Water Management Plan
Austins water supply comes from a combination of:
State-granted surface water rights (run-of-river)
Water supply contracts with LCRA (providing firm back-up to
ROR rights)
Lower Colorado River Authority (LCRA) operates and managesthe Highland Lakes system for water supply, flood control, and
other purposes
LCRAs State-approved Water Management Plan (WMP):
Guides Highland Lakes water management for all LCRA customers
who use stored water Sets out decision making process for release of water downstream for
agricultural uses, primarily rice irrigation, based on the combinedstorage of Lakes Buchanan and Travis
Includes drought management plan and other components
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2009 Highland Lakes and Run-of-River Water UseIncluding Lake Evaporation
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100,000
200,000
300,000
400,000
500,000
600,000
Emerg
ency
Releas
es
Austi
nEnerg
y*
Recre
ation
al&Fir
mIrrigatio
n
Industria
l/Stea
m-Ele
ctric
-Other
Envir
onment
Austin-
Municip
al
Othe
rMunicip
alities
Highlan
dLak
esEva
poratio
n
Agric
ulturalW
aterUse
WaterUse(AF/yr)
Stored (Lake) Water Run of River Water
City of Austin -Municipal Use
* STP water use included in
Industrial/Steam-Electric-Other** Total water use includes stored
water & run-of-river water
49%
15%
6%
15%
3%
10%
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Water Conservation and Lake Levels
Under the current WMP:
On the supply-side, water that Austin conserves becomes
available for other uses and does not necessarily remain inthe Highland Lakes
The fuller the lakes are at the beginning of the year thegreater the likelihood that more water will be available forinterruptible agricultural water releases
Open supply when combined storage is above 1.4 M AF/yr onJanuary 1st each year
WMP revision process is underway with the City ofAustin involved as a firm water stakeholder
Revisions anticipated to be submitted to TCEQ by late Fall2012, TCEQ will then review and conduct formal public inputprocess
Key outcome is to strengthen the link between conservation
and lake levels 24
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Next Steps
Continue implementation of 2007 Task ForceStrategies
Closely monitor GPCD Legislation Continue involvement in LCRA Water
Management Planning Process
Future Council Work Session for furtherdiscussion
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Questions