Counties in Region: YOUNG, WILLIAMSON, WASHINGTON, THROCKMORTON, TAYLOR, STONEWALL, STEPHENS, SOMERVELL, SHACKELFORD, ROBERTSON, PALO PINTO, NOLAN, MILAM, MCLENNAN, LIMESTONE, LEE, LAMPASAS, KNOX, KENT, JONES, JOHNSON, HOOD, HILL, HASKELL, HAMILTON, GRIMES, FISHER, FALLS, ERATH, EASTLAND, CORYELL, COMANCHE, CALLAHAN, BURLESON, BRAZOS, BOSQUE, BELL Major Cities: Abilene, Bryan, Temple/Killeen, Waco Population 2000: 1,672,819 Population 2050: 3,096,910 Total Water Use, 2000: 726080 Acre-Feet Total Water Use, 2050: 1034599 Acre-Feet Primary Rivers: Brazos Major Aquifers: Seymour, Trinity, Carrizo-Wilcox Annual Precipitation: 20-44 Inches Net Evaporation: 24-56 Inches Regional Planning Activity Information From The Teaxs Water Development Board

SUPPLY 1995   DEMAND 2000   DEMAND 2050 SOURCE PERCENT   SECTOR ACRE-FEET PERCENT   SECTOR ACRE-FEET PERCENT Groundwater 51%   Irrigation 197188 27.2%   Irrigation 177939 17.2% Surfacewater 49%   Manufacturing 21309 2.9%   Manufacturing 36238 3.5%       Livestock 53766 7.4%   Livestock 53766 5.2%       Mining 40107 5.5%   Mining 53903 5.2%       Municipal 310690 42.8%   Municipal 509929 49.3%       Power 103020 14.2%   Power 202824 19.6%

• Population is expected to double between 1995 and 2050. Water demand will increase for the municipal, manufacturing, mining, and power water use categories during this time, while livestock and irrigation water use will decline.
• Declining water quality in the Trinity Aquifer will necessitate conversion to surface water by some cities.
• Runoff from local dairy farms has led to elevated fecal coliform bacteria levels in the north Bosque River, while runoff from confined animal feeding operations is becoming a concern in the Leon River watershed.
• Localized water quality problems in the middle Brazos River Basin are common. In some cases, such as in Lake Waco and along the Paluxy River, dissolved metals have been identified as a concern.
• Natural salt pollution in the Upper Brazos River Basin in the western part of the planning area precludes use of this water or requires expensive treatment for municipal use.

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