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![Page 1: Making Conservation Work for You Chris Brown Chris Brown Consulting for Office of Rural Community Affairs December 2, 2003.](https://reader034.fdocuments.us/reader034/viewer/2022051216/5697bf781a28abf838c81dc4/html5/thumbnails/1.jpg)
Making Conservation Work for You
Chris BrownChris Brown Consulting
for
Office of Rural Community AffairsDecember 2, 2003
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TopicsDemand Profile and Programmatic DecisionsPriceConservation = $avings
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ConservationResults from
Behavior Efficient Equipment
Utility and customer cooperation
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PublicSupport is essentialExpects leadership from utilityCan be an ally or a partner Can drive new program development
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Conservation GoalsPercent reductionPer Capita reductionCost/Benefit
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Demand ProfileLost or un-metered waterCustomer classesSummertime peakingGrowth projections
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91.6%
6.7%
0.1%
1.3%
0.3%
Residential Commercial Apartment Industrial Municipal
Connections by Customer Class
SAWS 1995
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Water Consumption by Customer Class
54.3%
24.3%
16.2%
2.3%
0.7%2.2%
Residential Commercial Apartment Industrial Wholesale Municipal
SAWS 1995
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Average Monthly Consumption per Connection (gallons)
9,984 60,737
210,301
435,055
132,248
Residential Commercial Apartment Industrial Municipal
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Average Daily Pumping
0
50
100
150
200
250
Month
Mill
ion
Ga
llon
s D
ay
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Annual Pumping versus GrowthSan Antonio Water System
2y = 5032.3x + 260111
R = 0.9869
2
y = 532.97x + 56266
R = 0.5428
54,000.00
55,000.00
56,000.00
57,000.00
58,000.00
59,000.00
60,000.00
1995 1996 1997 1998 1999 2000
Year
Mil
lio
n G
allo
ns
per
Ye
ar
250000
255000
260000
265000
270000
275000
280000
285000
290000
295000
Co
nn
ecti
on
s
SAWS
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Historical Water UseAll EPWU Customers
150
160
170
180
190
200
210
220
230
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
155
GPCD
Excess ratestructure & Water
ConservationOrdinanceadopted
New goal for 2010: 140 GPCD
2000 goal was achieved, use by 2001 was 155 GPCD
160 GPCD was the goal set for 2000 back in 1990
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The BasicsWater Accountability Program
MeteringSystem Audit and Leak Detection
Conservation PricingIncreasing Block RatesIrrigation Rates
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PriceCost/BenefitAvoided costsRates:
Best motivator for outdoor and discretionary water useInverted blocks or drought surchargesWater budgets
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0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
$
0 - 7481 7482 - 12717 12717 - 17205 17206 +
Gallons
Residential Rate per 100 Gallons
Rate
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ResidentialAnnual Bills Vs. Usage
0
5
10
15
20
25
30
35
40
45
50
1 2 3 4
BillsUsage
Blocks
Perc
ent
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Drought Surcharges
Significant percentage increaseOnly top or excess usersAutomaticThey Work!
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0 - 7481 7482 - 12717 12717 - 17205 17206 +
0
0.10
0.20
0.30
0.40
0.50
0.60
0.70
$
0 - 7481 7482 - 12717 12717 - 17205 17206 +
Gallons
Residential Rate per 100 Gallons (with Surcharge)
Surcharge
Rate
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G P C D v s R a in fa l l
n h e o f R iI c s a n per Month
0 1 2 3 4 5 6 7
GP
CD
1 3 0
1 4 0
1 5 0
1 6 0
1 7 0
1 8 0
1 9 0
2 0 0
2 1 0
2 2 0
2 3 0
1994, 1995, 19971996
Aug/Sep ‘96
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Drought Surcharge Results
Rainfall and Critical Period Management most significantBest fit: 154 gpcdActual: 136 gpcd271 to 573 million gallons additional conservation above predicted amount.
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Best Management Practices (EAA)Core Municipal
•System Audits, Leak Detection and Repair•Public Information•School Education•Conservation Pricing•Metering•Water Waste Prohibition•Conservation Coordinator
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Initiatives with Retail Customers
Public Education and Information Programs
Learning to be Water WiseProject Wet
Large Landscape
Conservation Programs Water Survey Programs
For Residential Customers
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Costs Of Water Saved And Acre Feet Saved
Conservation Programs
$251 $249 $252 $247$226
-
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
FY 1995 FY 1996 FY 1997 FY 1998 FY 1999
Acr
e-F
eet
$-
$100
$200
$300
$400
$500
$600
$700
$800
$900
Dollars
Per
Acr
e-F
oot
Kick the Can Plumbers to People Watersaver LandscapeWashright Commercial Dollars Per Acre-Foot
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ConclusionUtility & public cooperation essentialUnderstanding demand = successConservation is a benefitBMPs help with planning and management of programs
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Chris Brown ConsultingWater Resources & Conservation Planning5108 Broadway, Ste. 231San Antonio, TX 78209
Ph: (210) 822-3500Fax: (210) 822-3366Email: [email protected]