03032oam 2200685 450 991071658640332120210608091349.0(CKB)5470000002522288(OCoLC)681145260(OCoLC)622209009(OCoLC)667850766(OCoLC)974649107(OCoLC)995470000002522288(EXLCZ)99547000000252228820101111d1997 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierEvaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania effects of pipe-outlet terracing on quantity and quality of surface runoff and ground water in a small carbonate-rock basin near Churchtown, Pennsylvania, 1983-89 /by Patricia L. Lietman, Linda C. Gustafson-Minnich, and David W. Hall ; prepared in cooperation with the Pennsylvania Department of Environmental ProtectionLemoyne, Pennsylvania :U.S. Geological Survey,1997.1 online resource (vii, 62 pages) illustrations, mapsWater-resources investigations report ;94-4206Water-quality study of the Conestoga River Headwaters, PennsylvaniaIncludes bibliographical references (pages 61-62).Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania Water qualityPennsylvaniaConestoga River WatershedGroundwaterPennsylvaniaConestoga River WatershedAgricultural pollutionPennsylvaniaConestoga River WatershedAgricultureEnvironmental aspectsPennsylvaniaConestoga River WatershedTerracingPennsylvaniaConestoga River WatershedNutrient pollution of waterPennsylvaniaConestoga River WatershedAgricultureEnvironmental aspectsfastNutrient pollution of waterfastWater qualityfastPennsylvaniaConestoga River WatershedfastWater qualityGroundwaterAgricultural pollutionAgricultureEnvironmental aspectsTerracingNutrient pollution of waterAgricultureEnvironmental aspects.Nutrient pollution of water.Water quality.Lietman Patricia L.1387758Gustafson-Minnich Linda C.Hall David W.Geological Survey (U.S.),Pennsylvania.Department of Environmental Protection.OCLCEOCLCEOCLCQOCLCFOCLCOOCLCQCOPGPOBOOK9910716586403321Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania3453531UNINA