Chapter 2 Regional Summaries - Texas Water Development Board

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FIGURE E.1. FAR WEST TEXAS (E) REGIONAL WATER PLANNING AREA. El Paso Hudspeth Culberson Rio Grande River Region E Major Rivers Cities Existing Reservoir Edwards - Trinity (Plateau) Aquifer Jeff Davis Pecos River Terrell Region E Hueco - Mesilla Bolsons Aquifer Pecos Valley Aquifer Bone Spring - Victorio Peak Aquifer* Capitan Reef Complex Aquifer* Major Rivers Cities Igneous Aquifer* Marathon Aquifer* Rustler Aquifer (outcrop)* Existing Reservoir Rustler Aquifer (subsurface)* Edwards - Trinity (Plateau) Aquifer West Texas Bolsons Aquifer* Hueco - Mesilla Bolsons Aquifer * Minor aquifer (only shown where there is no major aquifer) Pecos Valley Aquifer Bone Spring - Victorio Peak Aquifer* Capitan Reef Complex Aquifer* Igneous Aquifer* Marathon Aquifer* Rustler Aquifer (outcrop)* Rustler Aquifer (subsurface)* West Texas Bolsons Aquifer* * Minor aquifer (only shown where there is no major aquifer) Presidio Brewster WAT E R FOR TEXAS 2012 STATE WATER PLAN 57 Chapter 2: far west Texas (E) Region s u m m a ry
POPULATION AND WATER DEMANDS Less than 4 percent of the state’s total population resided in the Far West Texas Region in 2010. By 2060, the regional population is projected to increase 79 percent (Table E.1). Regional water demands, however, will increase less dramatically. By 2060, the total water demands for the region are projected to increase 8 percent (Table E.1). Agricultural irrigation water use makes up the largest share of these demands in all decades even though it is projected to decrease 10 percent over the planning period (Table E.1). Municipal water demand is projected to increase 60 percent by 2060 (Table E.1, Figure E.2). EXISTING WATER SUPPLIES The total water supply for 2010 is estimated to be 514,593 acre-feet (Table E.1, Figure E.2). Other than some irrigation use and El Paso municipal use, the region relies on groundwater for most of its water supply. Approximately 75 percent of the region’s existing water supply consists of groundwater from two major aquifers (Edwards-Trinity [Plateau] outcrop and the Hueco-Mesilla Bolsons) and six minor aquifers. The principal surface water sources are the Rio Grande and the Pecos River, although both are limited, by river system operations and water quality, respectively. Although no reservoirs are located in the planning area, a reservoir system in New Mexico, administered by the U.S. Bureau of Reclamation, regulates the Rio Grande and, thus, a portion of the area’s water supplies. Direct reuse provides another 6,000 acre-feet. Because of treaty and compact agreements, as well as groundwater management district regulations, the total surface and groundwater supply is projected to remain relatively constant throughout the planning period. NEEDS In 2010, total water needs during drought of record conditions for the region were projected to be an estimated 209,591 acre-feet, all in irrigation (Table E.1, Figure E.2). By 2060, water needs are projected to increase to 226,569 acre-feet, with irrigation making up the largest share of the needs (75 percent). Municipal needs are projected to constitute 14 percent of the total 2060 needs (Table E.1). Manufacturing, steam-electric power generation, and county-other categories are also projected to face needs. RECOMMENDED WATER MANAGEMENT STRATEGIES AND COST The Far West Texas Planning Group recommended a variety of water management strategies, including municipal conservation, direct reuse of reclaimed water, increases from the Rio Grande managed conjunctively with local groundwater, and imports of additional desalinated groundwater from more remote parts of the planning area. In all, the strategies would provide 130,526 acre-feet of additional water supply by the year 2060 (Figures E.3 and E.4) at a total capital cost of $842.1 million (Appendix A). The Far West Texas Region recommended an integrated water management strategy to meet needs in El Paso, which represents combinations of various sources. Because there were no economically feasible strategies identified, three counties have unmet irrigation needs during drought of record conditions ranging from 209,591 acre-feet in 2010 to 161,775 acre-feet by 2060. 58 Chapter 2: far west Texas (E) Region s u m m a ry WAT E R FOR TEXAS 2012 STATE WATER PLAN
Page 1 and 2: WAT E R FOR TEXAS 2012 STATE WATER
Page 3 and 4: 2 Summary of the Panhandle (A) Regi
Page 5 and 6: POPULATION AND WATER DEMANDS Approx
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Page 9 and 10: 2 Summary of Region B The Region B
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Page 13 and 14: $499.2 million (Appendix A). Implem
Page 15 and 16: 2 Summary of Region C The Region C
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Chapter 2 Regional Summaries - Texas Water Development Board

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