00911nam a2200193Ia 450000100070000000500170000700800410002404000100006510000290007524501990010426001410030330000340044449000340047850400520051265000440056465000480060870000270065670000340068326454020160527193138.0011002e2000    xxuab  fr     000 0 eng d  aPUCPR1 aClark, Melanie L.2Local10aEnvironmental characteristics and water quality of hydrologic benchmark network stations in the west-central United States, 1963-95cbyMelanie L. Clark , Cheryl A. Eddy-Miller and M. Alisa Mast.  aReston, Va.bU.S. Dept. of the Interior, U.S. Geological SurveyaDenver, CObFree on application to the USGS Information Servicesc2000.  ax, 115 p.bill., mapsc28 cm. 0aUSGS circularv1173-c.2Local  aIncludes bibliographical references(p.100-103). 0aHydrologyzWest (U.S.)xHistory.2Local 0aWater qualityzWest (U.S.)xHistory.2Local10aMast, M. Alisa.2Local10aEddy-Miller, Cheryl A.2Local