Charles A Cravotta, III, PhD, PG
Charles "Chuck" Cravotta is a research hydrologist whose projects focus on geochemical and hydrological processes that control water quality, particularly the sources, transport, and attenuation of metals and nutrients in undisturbed and mining-impacted watersheds and aquifers. Results apply to scientific and regulatory programs for the prevention and remediation of aquatic contamination.
Biography
Education
1979 B.A. Environmental Sciences, University of Virginia
1980-82 Continuing education, George Mason University
1986 M.S. Geochemistry and Mineralogy, Pennsylvania State University
1996 Ph.D. Geochemistry and Mineralogy, Pennsylvania State University
Professional Assignments
1987-present: Research Hydrologist, USGS, Pennsylvania Water Science Center, New Cumberland, Pennsylvania
1986-1987: Geochemist, IT Corporation, Monroeville, Pennsylvania
1982-1986: Graduate Teaching and Research Assistant, Geosciences Department, Pennsylvania State University, University Park, Pennsylvania
1979-1982: Geologist, Office of Scientific Publications, Geologic Division, USGS, Reston, Virginia
1979: Geologic Technician, Virginia State Water Control Board, Alexandria, Virginia
Professional Affiliations and Certification
2018-present: Adjunct Instructor, Earth and Environmental Sciences, University of Pittsburgh
2011-2016: Associate Editor, Mine Water and the Environment Journal, International Mine Water Association
2001-2005: Adjunct Assistant Professor of Environmental Engineering, Pennsylvania State University, Harrisburg, Pennsylvania
1995-present: Registered Professional Geologist in Pennsylvania PG-002255-G
Awards and Recognition
The Society for Organic Petrology Dalaway J. Swain Award “Best Refereed Paper”, 2016
Department of Interior Partners in Conservation Award (AMDTreat Development Team), 2013
Top 50 Most-Cited Papers in "Applied Geochemistry" (2006-2011)
Department of Interior Superior Service Award, 2005
Schuylkill County Conservation Professional of the Year Award, 2003
Department of Interior Honor Award, 2000
Pennsylvania Department of Environmental Protection Award for Excellence, 1999
External Research Database
Science and Products
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
Groundwater quality and aquifer lithologies in the Piedmont and Blue Ridge Physiographic Provinces in the eastern United States vary widely as a result of complex geologic history. Bedrock composition (mineralogy) and geochemical conditions in the aquifer directly affect the occurrence (presence in rock and groundwater) and distribution (...
Chapman, Melinda J.; Cravotta, Charles A.; Szabo, Zoltan; Lindsay, Bruce D.Inhibition of bacterial oxidation of ferrous iron by lead nitrate in sulfate-rich systems
Inhibition of bacterial oxidation of ferrous iron (Fe(II)) by Pb(NO3)2 was investigated with a mixed culture of Acidithiobacillus ferrooxidans. The culture was incubated at 30 °C in ferrous-sulfate medium amended with 0–24.2 mM Pb(II) added as Pb(NO3)2. Anglesite (PbSO4) precipitated immediately upon Pb addition and was the only solid phase...
Wang, Hongmei; Gong, Linfeng; Cravotta, Charles A.; Yang, Xiaofen; Tuovinen, Olli H.; Dong, Hailiang; Fu, XiangEvolution of the chemistry of Fe bearing waters during CO2 degassing
The rates of Fe(II) oxidation and precipitation from groundwater are highly pH dependent. Elevated levels of dissolved CO2 can depress pH and cause difficulty in removing dissolved Fe and associated metals during treatment of ferruginous water. This paper demonstrates interdependent changes in pH, dissolved inorganic C species, and Fe(II)...
Geroni, J.N.; Cravotta, C.A.; Sapsford, D.J.Water budgets and groundwater volumes for abandoned underground mines in the Western Middle Anthracite Coalfield, Schuylkill, Columbia, and Northumberland Counties, Pennsylvania-Preliminary estimates with identification of data needs
This report, prepared in cooperation with the Pennsylvania Department of Environmental Protection (PaDEP), the Eastern Pennsylvania Coalition for Abandoned Mine Reclamation, and the Dauphin County Conservation District, provides estimates of water budgets and groundwater volumes stored in abandoned underground mines in the Western Middle...
Goode, Daniel J.; Cravotta, Charles A.; Hornberger, Roger J.; Hewitt, Michael A.; Hughes, Robert E.; Koury, Daniel J.; Eicholtz, Lee W.Contributions of Phosphorus from Groundwater to Streams in the Piedmont, Blue Ridge, and Valley and Ridge Physiographic Provinces, Eastern United States
Phosphorus from natural and human sources is likely to be discharged from groundwater to streams in certain geochemical environments. Water-quality data collected from 1991 through 2007 in paired networks of groundwater and streams in different hydrogeologic and land-use settings of the Piedmont, Blue Ridge, and Valley and Ridge Physiographic...
Denver, Judith M.; Cravotta, Charles A.; Ator, Scott W.; Lindsey, Bruce D.Mineral transformations associated with goethite reduction by Methanosarcina barkeri
To investigate the interaction between methanogens and iron-containing minerals in anoxic environments, we conducted batch culture experiments with Methanosarcina barkeri in a phosphate-buffered basal medium (PBBM) to bioreduce structural Fe(III) in goethite with hydrogen as the sole substrate. Fe(II) and methane concentrations were monitored over...
Liu, D.; Wang, Hongfang; Dong, H.; Qiu, X.; Dong, X.; Cravotta, C.A.Utilization of AMD sludges from the anthracite region of Pennsylvania for removal of phosphorus from wastewater
Excess phosphorus (P) inputs from human sewage, animal feeding operations, and nonpoint source discharges to the environment have resulted in the eutrophication of sensitive receiving bodies of water such as the Great Lakes and Chesapeake Bay. Phosphorus loads in wastewater discharged from such sources can be decreased by conventional...
Sibrell, P.L.; Cravotta, C.A.; Lehman, W.G.; Reichert, W.A geochemical module for "AMDTreat" to compute caustic quantity, effluent quantity, and sludge volume
Treatment with caustic chemicals typically is used to increase pH and decrease concentrations of dissolved aluminum, iron, and/or manganese in largevolume, metal-laden discharges from active coal mines. Generally, aluminum and iron can be removed effectively at near-neutral pH (6 to 8), whereas active manganese removal requires treatment to...
Cravotta, Charles A.; Parkhurst, David L.; Means, Brent P; McKenzie, Bob; Morris, Harry; Arthur, BillAbandoned mine drainage in the Swatara Creek Basin, southern anthracite coalfield, Pennsylvania, USA: 1. stream quality trends coinciding with the return of fish
Acidic mine drainage (AMD) from legacy anthracite mines has contaminated Swatara Creek in eastern Pennsylvania. Intermittently collected base-flow data for 1959–1986 indicate that fish were absent immediately downstream from the mined area where pH ranged from 3.5 to 7.2 and concentrations of sulfate, dissolved iron, and dissolved aluminum...
Cravotta, Charles A.; Brightbill, Robin A.; Langland, Michael J.Abandoned mine drainage in the Swatara Creek Basin, southern anthracite coalfield, Pennsylvania, USA: 2. performance of treatment systems
A variety of passive and semi-passive treatment systems were constructed by state and local agencies to neutralize acidic mine drainage (AMD) and reduce the transport of dissolved metals in the upper Swatara Creek Basin in the Southern Anthracite Coalfield in eastern Pennsylvania. To evaluate the effectiveness of selected treatment systems...
Cravotta, Charles A.Characterization of rock samples and mineralogical controls on leachates
Rocks associated with coal beds typically include shale, sandstone, and (or) limestone. In addition to common rock-forming minerals, all of these rock types may contain sulfide and sulfate minerals, various carbonate minerals, and organic material. These different minerals have inherently different solubility characteristics, as well as different...
Hornberger, Roger J.; Brady, Keith B.C.; Hammarstrom, Jane M.; Cravotta, Charles A.; Galeone, Daniel G.; Jackson, John C.; Dulong, Frank T.Dissolved metals and associated constituents in abandoned coal-mine discharges, Pennsylvania, USA. Part 1: Constituent quantities and correlations
Complete hydrochemical data are rarely reported for coal-mine discharges (CMD). This report summarizes major and trace-element concentrations and loadings for CMD at 140 abandoned mines in the Anthracite and Bituminous Coalfields of Pennsylvania. Clean-sampling and low-level analytical methods were used in 1999 to collect data that could be useful...
Cravotta, C.A.