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1
Water Use InWater Use InFar West TexasFar West Texas
Gilbert TrejoGis in Water Resources, Fall 2004
The University of Texas at Austin
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INTRODUCTIONINTRODUCTION
• TWDB Regional Water Planning Group E–El Paso
–Hudspeth
–Culberson
–Jeff Davis
–Presidio
–Brewster
–Terrell
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OBJECTIVEOBJECTIVE
• Understand the stress that El Paso imposes on far west Texas and southern New Mexico.
• 1990-2000
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METHODSMETHODS• USGS Circular
– “Estimated Use of Water in the United States”
• Texas Water Development Board (TWDB)– GIS data
Public Supply Industrial Irrigation
MiningLivestock
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Total PopulationTotal Population
county2000 Total Population
(Thousands)
1990 Total Population
(Thousands)EL PASO 679.62 591.61
HUDSPETH 3.34 2.91CULBERSON 2.98 3.41JEFF DAVIS 2.21 1.95BREWSTER 8.87 8.68PRESIDIO 7.30 6.64TERRELL 1.08 1.41
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Public Supply: Total WithdrawalsPublic Supply: Total Withdrawals
County2000
(MGD)1990
(MGD)
EL PASO 128.85 122.83HUDSPETH 0.19 0.61
CULBERSON 0.99 0.63JEFF DAVIS 0.48 0.63BREWSTER 1.92 1.66PRESIDIO 1.41 1.57TERRELL 0.17 0.29
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Industrial: Total WithdrawalsIndustrial: Total Withdrawals
County2000
(MGD)1990
(MGD)
EL PASO 8.17 6.69HUDSPETH 0.00 0
CULBERSON 0.00 0JEFF DAVIS 0.25 0BREWSTER 0.00 0PRESIDIO 0.28 0TERRELL 0.00 0
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Mining: Total WithdrawalsMining: Total Withdrawals
County2000
(MGD)1990
(MGD)
EL PASO 0.09 0.16HUDSPETH 0.00 0
CULBERSON 2.11 1.35JEFF DAVIS 0.00 0BREWSTER 0.62 0.58PRESIDIO 0.01 0.01TERRELL 0.05 0.01
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Livestock: Total WithdrawalsLivestock: Total Withdrawals
County2000
(MGD)1990
(MGD)2000
(MGD)1990
(MGD)
EL PASO 0.08 0.02 1.52 0.38HUDSPETH 0.03 0.02 0.56 0.30
CULBERSON 0.02 0.02 0.32 0.41JEFF DAVIS 0.03 0.02 0.50 0.47BREWSTER 0.03 0.03 0.63 0.64PRESIDIO 0.03 0.02 0.58 0.42TERRELL 0.02 0.02 0.30 0.35
Total Surface Water Withdrawals
Total GroundWater Withdrawals
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Irrigation: Total WithdrawalsIrrigation: Total Withdrawals
County2000
(MGD)1990
(MGD)
EL PASO 216.23 167.87HUDSPETH 266.92 147.49
CULBERSON 10.45 12.62JEFF DAVIS 0.23 1.45BREWSTER 0.29 0.21PRESIDIO 19.82 31.05TERRELL 0.44 0.35
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Total WithdrawalsTotal Withdrawals
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Total WithdrawalsTotal Withdrawals
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Total Acres IrrigatedTotal Acres Irrigated
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IrrigationIrrigation
GroundwaterGroundwater
Surface WaterSurface Water
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Elephant Butte ReservoirElephant Butte Reservoir
4280
4300
4320
4340
4360
4380
4400
4420
Proj
ecte
d El
evat
ion,
feet
2003
2004
spillway crest elev. = 4408 ft
119 ft
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
Proj
ecte
d Su
rface
Are
a, a
cres
2003
2004
- 90,000 acres capacity- September 2004 - 4.4% of capacity
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
Proj
ecte
d St
orag
e, a
cre-
feet
2003
2004
- 2,000,000 acre-feet capacity- September 2004 - 3.5% of capacity
USBR (http://www.usbr.gov/uc/elpaso/water/Reservoirs/index.html)
