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| | USGS CFC Lab |
 | | Talma, A.S., Weaver, John M.C., Plummer, L. Niel, and Busenberg, Eurybiades, 2000, CFC tracing of groundwater in fractured rock aided with 14C and 3H to identify water mixing. |
 | | Burton, William C., Plummer, L. Niel, Busenberg, Eurybiades, Lindsey, Bruce D., and Gburek, William R., 2002, Influence of fracture anisotropy on ground-water ages and chemistry, Valley and Ridge Province, Pennsylvania. |
 | | Shapiro, Stephanie Dunkle, Plummer, L. Niel, Focazio, Michael J., Busenberg, Eurybiades, Kirkland, Wandee, and Fernandez, Mario, Jr., 2003, Occurrence of volatile organic compounds in drinking water from the United States: Results from archived chromatograms and water samples, 1989-2000. |
| water.usgs.gov /lab/references/group (1924 words) |
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