Table 1.  Summary of the lithologic and hydrologic properties of the hydrogeologic units in Webb County, Texas

[Lithologic and hydrologic properties modified from Lonsdale and Day, 1937; Winslow and Kister, 1956; Klemt and others, 1976; University of Texas, Bureau of Economic Geology, 1976a,b. Color shading to show aquifer. ft, feet; AQ, aquifer; <, less than; gal/min, gallons per minute; CU, confining unit; >, greater than]

Table 1.  Summary of the lithologic and hydrologic properties of the hydrogeologic units in Webb County, Texas

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