**[Debra E. Buxton -- Hydrologist, GS-12]{.underline}**

Modeling experience entails use of the original Modflow and
Modflow-2000. Pre-processors used include Arcmodel, and MFI2K.
Post-processors used include rasa-post.aml - plots potentiometric
contours, Zonebudget -- computes a flow budget for model subregions, and
development of a FORTRAN program that used a digitizer to calculate
time-of-travel along the streamlines of model generated flow nets. Long
Island modeling experience included being Project chief of North Fork
Aldicarb/Tritium modeling study which was a ground-water simulation
study that compared ground-water flow paths and time-of-travel of 2
cross-section models to the movement and dispersion of aldicarb, and
used tritium concentrations to indicate the age of the ground water. New
Jersey modeling experience includes work on Rasa 3, which added the Rio
Grande Water Bearing Zone as a new layer to the RASA model and work on a
ground water-surface water interaction study in the Mullica and Great
Egg Harbor River Basins to investigate ground-water conditions and GW-SW
interactions over time.

[Reports]{.underline}

Bohn-Buxton, D.E., Buxton, H.T., and Eagen, V.K., 1995, Use of numerical
flow-net analysis to predict the distribution of aldicarb in the upper
glacial aquifer on the North Fork, of Long Island, New York: U.S.
Geological Survey Open-File Report 95-761, 30 p.

Buxton, D.E., and Dunne, Paul, 1993, Water-quality data for the
Millstone River at Weston, New Jersey, and the Shark River at Remsen
Mill, New Jersey, March-September 1992: U.S. Geological Survey Open-File
Report 93-444, 16 p.

Buxton, D.E., Hunchak-Kariouk, Kathryn, and Hickman, R.E., 1998,
Relations of surface-water quality to streamflow in the Hackensack,
Passaic, Elizabeth, and Rahway River basins, New Jersey, water years
1976-93: U.S. Geological Survey Water-Resources Investigations Report
98-4049, 102 p.

Buxton, D.E., Hunchak-Kariouk, Kathryn, and Hickman, R.E., 1999a,
Relations of surface-water quality to streamflow in the Wallkill and
Upper Delaware River basins, New Jersey, water years 1976-93: U.S.
Geological Survey Water-Resources Investigations Report 99-4016, 98 p.

Buxton, D.E., Hunchak-Kariouk, Kathryn, and Hickman, R.E., 1999b,
Relations of surface-water quality to streamflow in the Raritan River
basin, New Jersey, water years 1976-93: U.S. Geological Survey
Water-Resources Investigations Report 99-4045, 100 p.

Buxton, H.T., and Bohn, D.E., 1990, Refining the conceptualization of a
ground-water flow system from head maps and hydrologic sections: in
Franke, O.L., and others, 1990, Study guide for beginning course in
ground-water hydrology: Part I---Course participants: U.S. Geological
Survey Open-File Report 90-183, 180 p.

Hunchak-Kariouk, Kathryn, Buxton, D.E., and Hickman, R.E., 1999,
Relations of surface-water quality to streamflow in the Atlantic
Coastal, lower Delaware River, and Delaware Bay basins, New Jersey,
water years 1976-93: U.S. Geological Survey Water-Resources
Investigations Report 98-4244, 147 p.

Ivahnenko, Tamara, and Buxton, D.E., 1994, Agricultural pesticides in
six drainage basins used for public water supply in New Jersey, 1990:
U.S. Geological Survey Water-Resources Investigations Report 93-4101, 56
p.

Sloto, R.A., and Buxton, D.E., 2005, Water budgets for selected
watersheds in the Delaware River basin, eastern Pennsylvania and western
New Jersey: U.S. Geological Survey Scientific Investigations Report
2005-5113, 37 p.

Sloto, R.A., and Buxton, D.E., 2006, Estimated ground-water availability
in the Delaware River basin, 1997-2000: U.S. Geological Survey
Scientific Investigations Report 2006-5125, 67 p.

[Articles and Proceedings]{.underline}

Buxton, D.E., and Stedfast, D.A., 1993, Estimating the vulnerability to
pesticide contamination of drainage basins used for public supply in New
Jersey: Proceedings of the Fourth National Conference on Pesticides,
November 1-3, 1993, Blacksburg, Virginia.

[Fact Sheets]{.underline}

Vowinkle, Eric F., Clawges, R.M., Buxton, D.E., Stedfast, D.A., and
Louis, J.B., 1996, Vulnerability of public drinking water supplies in
New Jersey to pesticides: U.S. Geological Survey Fact Sheet FS-165-96.

[Posters]{.underline}

Hopple, J.A., Buxton, D.E., Vowinkle, E.F., Storck, D.A., Louis, J.B.,
Carter, G.P., Apalinski, E.J., and Kong, M., 2001, Approach to determine
susceptibility of source waters in New Jersey to contamination: Poster
for the AWRA Regional Meeting, May 10-11, 2001, Port Jervis, New York.

[Anonymous Web-based Reports for NJDEP SWAP]{.underline}

Methods to determine the susceptibility of source water to public water
supplies in New Jersey to contamination, 2003

Susceptibility of source water to community and noncommunity
surface-water supplies and related wells in New Jersey to contamination
by disinfection byproduct precursors, 2004

Susceptibility of source water to community and noncommunity
surface-water supplies and related wells in New Jersey to contamination
by inorganic constitiuents, 2004

Susceptibility of source water to community and noncommunity
surface-water supplies and related wells in New Jersey to contamination
by volatile organic compounds, 2004