Counties in Region: YOAKUM, TERRY, SWISHER, PARMER, MOTLEY, LYNN, LUBBOCK, LAMB, HOCKLEY, HALE, GARZA, GAINES, FLOYD, DICKENS, DEAF SMITH, DAWSON, CROSBY, COCHRAN, CASTRO, BRISCOE, BAILEY Major Cities: Lubbock Population 2000: 474,897 Population 2050: 586,156 Total Water Use, 2000: 3257253 Acre-Feet Total Water Use, 2050: 2793000 Acre-Feet Primary Rivers: Red, Brazos, Colorado Major Aquifers: Ogallala, Seymour Annual Precipitation: 16-24 Inches Net Evaporation: 52-64 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 98.5%   Irrigation 3065373 94.1%   Irrigation 2562079 91.7% Surfacewater 1.5%   Manufacturing 9398 0.3%   Manufacturing 15694 0.6%       Livestock 42538 1.3%   Livestock 73671 2.6%       Mining 30384 0.9%   Mining 11824 0.4%       Municipal 87360 2.7%   Municipal 92532 3.3%       Power 22200 0.7%   Power 37200 1.3%

• Population growth in this region will be moderate.
• This planning area uses more water than any other but will reduce water use by more than a million acre-feet by 2050 because of decreasing groundwater supplies and reduced irrigation demands.
• The Ogallala Aquifer is a dwindling supply and in the future will not be able to meet irrigation demands at the present level.
• Groundwater contamination from past oil-field practices, particularly the disposal of oil-field brines into unlined surface pits, has led to high dissolved-solid concentrations.
• Lubbock relies on nearby groundwater wells and surface water from Lake Meredith on the Canadian River for its municipal and manufacturing demands. Lubbock may need to find additional surface water.

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