01781nam 2200433Ka 450 991069683010332120080728114932.0(CKB)5470000002382583(OCoLC)236168852(EXLCZ)99547000000238258320080728g19992000 ua 0engtxtrdacontentcrdamediacrrdacarrierEnvironmental characteristics and water quality of hydrologic benchmark stations in the United States, 1963-95[electronic resource]Reston, Va. U.S. Dept. of the Interior, U.S. Geological Survey1999-20004 volumes HTML, digital, PDF filesU.S. Geological Survey circular ;1173Introduction to circular -- Analytical methods -- Circular 1173-A. HBN in the eastern U.S. -- Circular 1173-B. HBN in the midwestern U.S. -- Circular 1173-C. HBN in the west-central U.S. -- Circular 1173-D. HBN in the western U.S.HydrologyUnited StatesObservationsHydrologyUnited StatesHistoryWater qualityUnited StatesObservationsWater qualityUnited StatesHistoryStream-gaging stationsUnited StatesStream measurementsUnited StatesHydrologyHydrologyHistory.Water qualityWater qualityHistory.Stream-gaging stationsStream measurementsGeological Survey (U.S.)GPOGPOBOOK9910696830103321Environmental characteristics and water quality of hydrologic benchmark stations in the United States, 1963-953202000UNINA