U.S. Geological Survey
Tacoma, WA 98402
Major areas of research include karst and fracture flow processes, karst groundwater flow modeling, and groundwater age dating.
Aquifers In Which Mark Has Conducted Research
Mark's Karst Publications
- Doctor, D.H., Weary, D.J., Orndorff, R.C., Harlow, G.E., Jr., Kozar, M.D., and Nelms, D.L. (2008) Bedrock structural controls on the occurrence of sinkholes and springs in the northern Great Valley karst, Virginia and West Virginia: in Yuhr, L.B., Alexander, E.C., Jr., and Beck, B.F. (eds.), Sinkholes and the Engineering and Environmental Impacts of Karst, Geotechnical Special Publication, 183, p. 12-22.
- Kozar, M.D., McCoy, K.J., Weary, D.J., Field, M.S., Pierce, H.A., Schill, W.B., and Young, J.A. (2008) Hydrogeology and water quality of the Leetown area, West Virginia: USGS Open-File Report 2007-1358, 212 p.
- Kozar, M.D., Weary, D.J., Paybins, K.S., and Pierce, H.A. (2007) Hydrogeologic setting and ground-water flow in the Leetown Area, West Virginia: USGS Scientific Investigations Report 2007-5066, 70 p.
- Kozar, M.D., and Weary, D.J. (2009) Hydrogeology an ground-water flow in the Opequon Creek watershed area, Virginia and West Virginia: USGS Scientific Investigations Report 2009-5153, 61 p.
- McCoy, K.J., and Kozar, M.D. (2006) Relation of chlorofluorocarbon ground-water age dates to water quality in the aquifers of West Virginia: USGS Scientific Investigations Report 2006-5221, 37 p.
- McCoy, K.J., and Kozar, M.D. (2008) Use of sinkhole and specific capacity distributions to assess vertical gradients in a karst aquifer: Environmental Geology, v. 54, p. 921-935.