Subjects: *AQUIFERS; *WATER supply; *WATER pollutionPUERTO RicoGEOLOGICAL Survey (U.S.)...
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Subjects: *DATA; *AQUIFERSGEOLOGICAL Survey (U.S.)
Subjects: *FARMERS; *AQUIFERS
Subjects: *WATER management; *WATER supply; *GROUNDWATER managementTEXAS
Subjects: *AQUIFERS
Subjects: *GROUNDWATER; *WATER conservation; *AQUIFERSAUSTIN (Tex.); TEXAS
Subjects: *WELLHEADS; *CONTAMINATION of drinking water; *AQUIFERSPUERTO RicoPUERTO Rico. Environmental Quality Board
Subjects: *AQUIFERS; *WATER supply; *GEOLOGICAL formationsTEXAS
Subjects: *WATER supply; *AQUIFERS; *WELLSEAST (U.S.); UNITED StatesDICKERSON, Phil