Subsurface Point-Source Contamination
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A dual-frequency GPS receiver is used to survey passive-diffusion samples ("peepers") in a wetland at the leading edge of the leachate plume -- from the Norman Landfill Site
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The Toxics Program conducts intensive field investigations to study common classes of subsurface
point-source contamination. (more information)
Complete listing of point-source investigations and projects >>
Other Subsurface Point-Source Investigations
Subsurface Point-Source Contamination Information
Meetings and Conferences
- USGS co-sponsor the special session Characterizing Ground-Water Flow and Chemical Transport in Fractured-Rock Aquifers at the 2008 Western Pacific Geophysics Meeting in Cairns, Australia, on July 29-August 1, 2008
- USGS and Virginia Tech present the NGWA's short course "Estimating Times of Remediation Associated with Monitored Natural Attenuation and Contaminant Source Removal," Tucson, Ariz., March 17-18, 2008
- GSA and USGS cosponsor GeoHealth I: Building Bridges Across the Geological and Health Sciences, USGS Headquarters, Reston, Virginia, March 4-6, 2008
New Publications
Upcoming Publications
- Fate of consumer product chemicals in the subsurface environment--25 Years of research on Cape Cod, Massachusetts, USA: Barber, L.B., in Hill, M.C., ed., Groundwater Quality 2007--Securing Groundwater Quality in Urban and Industrial Environments: International Association of Hydrological Sciences IAHS Redbook (IN PRESS).
- Subsurface fate and transport of 4-nonylphenol, 17Β-estradiol, and sulfamethoxazole: Barber, L.B., Meyer, M.T., LeBlanc, D.R., Kolpin, D.W., Bradley, P.M., Chapelle, F.H., and Rubio, F., in Hill, M.C., ed., Groundwater Quality 2007--Securing Groundwater Quality in Urban and Industrial Environments: International Association of Hydrological Sciences IAHS Redbook (IN PRESS).
- Biological degradation of chloroethenes: Bradley, P.M., and Chapelle, F.H., in SERDP/ESTCP Monograph on Remediation of Dissolved-Phase Chlorinated Solvents: (IN PRESS).
- Biochemical indicators for the bioavailability of natural dissolved organic carbon in ground water: Chapelle, F.H., Bradley, P.M., Goode, D.J., Tiedeman, C., Lacombe, P.J., Kaiser, K., and Benner, R., Ground Water (IN PRESS).
- Case study of a full-scale evapotranspiration cover: McGuire, P.E., Andraski, B.J., and Archibald, R., Journal of Geotechnical and Geoenvironmental Engineering (IN PRESS).
New Publications
- Pathogen and chemical transport in the karst limestone of the Biscayne aquifer--1. Revised conceptualization of groundwater flow: Renken, R.A., Cunningham, K.J., Shapiro, A.M., Harvey, R.W., Zygnerski, M.R., Metge, D.W., and Wacker, M.A., 2008, Water Resources Research, v. 44, W08429, doi:10.1029/2007WR006058.
- Pathogen and chemical transport in the karst limestone of the Biscayne aquifer--2. Chemical retention from diffusion and slow advection: Shapiro, A.M., Renken, R.A., Harvey, R.W., Zygnerski, M.R., and Metge, D.W., 2008, Water Resources Research, v. 44, W08430, doi:10.1029/2007WR006059.
- Pathogen and chemical transport in the karst limestone of the Biscayne aquifer--3. Use of microspheres to estimate the transport potential of Cryptosporidium parvum oocysts: Harvey, R.W., Metge, D.W., Shapiro, A.M., Renken, R.A., Osborn, C.L., Ryan, J.N., Cunningham, K.J., and Landkamer, L., 2008, Water Resources Research, v. 44, W08431, doi:10.1029/2007WR006060.
- Coupled effect of chemotaxis and growth on microbial distributions in organic-amended aquifer sediments--Observations from laboratory and field studies: Wang, M., Ford, R.M., and Harvey, R.W., 2008, doi:10.1021/es702392h (Advanced Web release).
- Differences in evaporation between a floating pan and class A pan on land: Masoner, J.R., Stannard, D.I., and Christenson, S.C., 2008, doi:10.1111/j.1752-1688.2008.00181.x (Advanced Web release).
- Coupled effect of chemotaxis and growth on microbial distributions in organic-amended aquifer sediments--Observations from laboratory and field studies: Wang, M., Ford, R.M., and Harvey, R.W., 2008, doi:10.1021/es702392h (Advanced Web release).
- Redox processes and water quality of selected principal aquifer systems: McMahon, P.B., and Chapelle, F.H., 2008, Ground Water, v. 46, no. 2, p. 259-271, doi:10.1111/j.1745-6584.2007.00385.x.
- Anoxic mineralization--Environmental reality or experimental artifact?: Bradley, P.M., Chapelle, F.H., and Löffler, F.E., 2008, Ground Water Monitoring and Remediation, v. 28, no. 1, p. 47-49, doi:10.1111/j.1745-6592.2007.00186.x.
- Transport of elemental mercury in the unsaturated zone from a waste disposal site in an arid region: Walvoord, M.A., Andraski, B.J., Krabbenhoft, D.P., and Striegl, R.G., 2008, Applied Geochemistry, v. 23, no. 3, p. 572-583, doi:10.1016/j.apgeochem.2007.12.014.
- Determination of dominant biogeochemical processes in a contaminated aquifer-wetland system using multivariate statistical analysis: Báez-Cazull, S.E., McGuire, J.T., Cozzarelli, I.M., and Voytek, M.A., 2008, Journal of Environmental Quality, v. 37, no. 1, p. 30-46, doi:10.2134/jeq2007.0169.
- Biodegradation in contaminated aquifers--Incorporating microbial/molecular methods: Weiss, J.V., and Cozzarelli, I.M., 2008, Ground Water, doi:10.1111/j.1745-6584.2007.00409.x (Advanced web release).
- The effect of terrace geology on ground-water movement and on the interaction of ground water and surface water on a mountainside near Mirror Lake, New Hampshire, USA: Winter, T.C., Buso, D.C., Shattuck, P.C., Harte, P.T., Vroblesky, D.A., and Goode, D.J., 2008, Hydrological Processes, v. 22, no. 1, p. 21-32, doi:10.1002/hyp.6593.
- Estimation of the effective chemical diffusion coefficient of a rock matrix in a fractured aquifer: Gebrekristos, R.A., Shapiro, A.M., and Usher, B.H., 2008, Hydrogeology Journal, doi:10.1007/s10040-007-0255-0 (Advanced Web release).
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