01460oam 2200421Ia 450 991069741090332120080908121359.0(CKB)5470000002388837(OCoLC)56072937(EXLCZ)99547000000238883720040802d1999 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierWater-quality assessment of south-central Texas[electronic resource] comparison of water quality in surface-water samples collected manually and by automated samplers /[Patricia B. Ging][Reston, Va.] :U.S. Dept. of the Interior, U.S Geological Survey,[1999]6 pages digital, PDF fileUSGS fact sheet ;FS-172-99Title from PDF title screen (viewed Aug. 2, 2004)."November 1999."Includes bibliographical references.Water-quality assessment of south-central Texas Water qualityTexasGroundwaterQualityTexasWater qualityGroundwaterQualityGing Patricia B1383683Geological Survey (U.S.)GPOGPOOCLCQGPOBOOK9910697410903321Water-quality assessment of South-Central Texas3432425UNINA