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Drinking water health standards comparison and chemical analysis of groundwater for 72 domestic wells in Bradford County, Pennsylvania, 2016 [研究报告]
10.3133/sir20185170U.S. Geological Survey. 2019-01-01
Clune, John W.;  Cravotta, Charles A. III
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Hydrologic characteristics and water quality of headwater streams and wetlands at the Allegheny Portage Railroad National Historic Site, Summit area, Blair and Cambria Counties, Pennsylvania, 2014–16 [研究报告]
10.3133/ofr20181125U.S. Geological Survey. 2018-01-01
Cravotta, Charles A. III;  Galeone, Daniel G.;  Penrod, Kathy A.
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Baseline assessment of groundwater quality in Pike County, Pennsylvania, 2015 [研究报告]
10.3133/sir20175110U.S. Geological Survey. 2017-01-01
Senior, Lisa A. lasenior@usgs.gov;  Cravotta, Charles A. III cravotta@usgs.gov
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Baseline assessment of groundwater quality in Wayne County, Pennsylvania, 2014 [研究报告]
10.3133/sir20165073U.S. Geological Survey. 2016-01-01
Senior, Lisa A. lasenior@usgs.gov;  Cravotta, III, Charles A. cravotta@usgs.gov;  Sloto, Ronald A. rasloto@usgs.gov
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Naturally occurring contaminants in the Piedmont and Blue Ridge crystalline-rock aquifers and Piedmont Early Mesozoic basin siliciclastic-rock aquifers, eastern United States, 1994???2008 [研究报告]
U.S. Geological Survey. 2013-01-01
Chapman, Melinda J. mjchap@usgs.gov;  Cravotta, Charles A. III cravotta@usgs.gov;  Szabo, Zoltan zszabo@usgs.gov;  Lindsay, Bruce D.
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Contributions of Phosphorus from Groundwater to Streams in the Piedmont, Blue Ridge, and Valley and Ridge Physiographic Provinces, Eastern United States [研究报告]
U.S. Geological Survey. 2011-01-01
Denver, Judith M. jmdenver@usgs.gov;  Cravotta, Charles A. III cravotta@usgs.gov;  Ator, Scott W. swator@usgs.gov;  Lindsey, Bruce D. blindsey@usgs.gov
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