Relations among water levels, specific conductance, and depths of bedrock fractures in four road-salt-contaminated wells in Maine, 2007-9Charles W. Schalk · First published 2012Open the Tome
Hydrogeology, ground-water use, and ground-water levels in the Mill Creek Valley near Evendale, OhioCharles W Schalk · First published 2002Open the Tome
Descriptions of selected digital spatial data for former Air Force Plant 36, Evandale, OhioCharles W. Schalk · First published 2000Open the Tome
Identification of potential wetlands in training areas on Ravenna Army Ammunition Plant, Ohio, and guidelines for their managementCharles W. Schalk · First published 1999Open the Tome
Analysis of the sensitivity of soils to the leaching of agricultural pesticides in OhioCharles W. Schalk · First published 1998Open the Tome
Descriptions of selected digital spatial data for Ravenna Army Ammunition Plant, OhioCharles W. Schalk · First published 1998Open the Tome
Results of the basewide monitoring program at Wright-Patterson Air Force Base, Ohio, 1993-1994Charles W. Schalk, Cunningham, William L. · First published 1997Open the Tome
Estimation of the recharge areas contributing water to the south well field, Columbus, OhioCharles W. Schalk · First published 1996Open the Tome
