Contamination from Sources with Mixed Wastes
The thousands of sampling ports in the subsurface sampling array used for the large-scale, natural-gradient tracer test created a mind-boggling number of water samples. In later stages of the test over 4,000 samples were collected during sampling field trips (circa 1985 to 1986) -- from the Cape Cod Site
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Many contaminant sources introduce a diverse and complex mixture of organic and inorganic
contaminants into the subsurface, which can complicate characterizations of contaminant transport,
fate and effects. These sources include landfills and wastewater discharges. The resulting
contaminant plumes are difficult to characterize, manage, and remediate. Reactions among dissolved
chemicals, reactions between dissolved chemicals and the aquifer material, and microbial reactions
can significantly accelerate or retard contaminant movement and complicate natural and engineered
cleanup. Ongoing research focuses on defining source mixtures, developing field methods for
characterization, quantifying transport processes and development of simulation modeling
capabilities. Current research focuses on the following three areas:
Landfill Leachate in Alluvial Aquifers --
Norman, Oklahoma
Sewage Contamination in Sand and Gravel
Aquifers -- Cape Cod, Massachusetts
Mixed, Low-level Radioactive and Other Wastes
-- Amargosa Desert Research Site, Nevada
Program Headlines on Mixed Waste Contamination Research
Fact Sheets
Meetings and Conferences
New Publications
Upcoming Publications
- Monitoring the removal of phosphate from ground water discharging through a pond-bottom permeable reactive: McCobb, T.D., LeBlanc, D.R., and Massey, A.J., Ground Water Monitoring and Remediation (IN PRESS).
- Soil-CO2 flux in an arid environment--A multiple year study: Riggs, A.C., Stannard, D.I., Maestas, F., Karlinger, M., and Striegl, R.G., U.S. Geological Survey Scientific Investigations Report (IN PRESS).
- The relative importance of abiotic and biotic transformation of carbon tetrachloride in anaerobic soils and sediments: Shao, H., and Butler, E.C., Soil and Sediment Contamination--An International Journal (IN PRESS).
- Use of inverse modeling methods to improve ground-water-modeling calibration and evaluate model-prediction uncertainty, Camp Edwards, Cape Cod, Massachusetts: Walter, D.A., and LeBlanc, D.R., U.S. Geological Survey Scientific Investigations Report 2007-5257 (IN PRESS).
- Transport of tritium contamination from the shallow unsaturated zone to the atmosphere in an arid environment: Garcia, C.A., Andraski, B.J., Stonestrom, D.A., Cooper, C.A., Johnson, M.J., Michel, R.L., and Wheatcraft, S.W., Vadose Zone Journal, v. 8, no. 2 (IN PRESS).
Newly Published
- Biogeochemistry at a wetland sediment-alluvial aquifer interface in a landfill leachate plume: Lorah, M.M., Cozzarelli, I.M., and Böhlke, J.K., 2009, Journal of Contaminant Hydrology, v. 105, no. 3-4, p. 99-117, doi:10.1016/j.jconhyd.2008.11.008.
- Case study of a full-scale evapotranspiration cover: McGuire, P.E., Andraski, B.J., and Archibald, R., 2009, Journal of Geotechnical and Geoenvironmental Engineering, v. 135, no. 3, p. 316-332, doi:10.1061/(ASCE)1090-0241(2009)135:3(316).
- Assessing recharge across the southwest: Stonestrom, D.A., 2009, Southwest Hydrology, v. 8, no. 1, p. 10-11.
- Waste-indicator and pharmaceutical compounds in landfill-leachate-affected ground water near Elkhart, Indiana, 2000-2002: Buszka, P.M., Yeskis, D.J., Kolpin, D.W., Furlong, E.T., Zaugg, S.D., and Meyer, M.T., 2009, Bulletin of Environmental Contamination and Toxicology, doi:10.1007/s00128-009-9702-z (Advanced Web release).
- Microbial characterization of nitrification in a shallow, nitrogen-contaminated aquifer, Cape Cod, Massachusetts and detection of a novel cluster associated with nitrifying Betaproteobacteria: Miller, D.N., and Smith, R.L., 2009, Journal of Contaminant Hydrology, v. 103, no. 3-4, p. 182-193, doi:10.1016/j.jconhyd.2008.10.011.
- Use of inverse modeling methods to improve ground-water-modeling calibration and evaluate model-prediction uncertainty, Camp Edwards, Cape Cod, Massachusetts: Walter, D.A., and LeBlanc, D.R., 2008, U.S. Geological Survey Scientific Investigations Report 2007-5257.
- Prevalence of tumors in brown bullhead from three lakes in southeastern Massachusetts, 2002: Baumann, P.C., LeBlanc, D.R., Blazer, V.S., Meier, J.R., Hurley, S.T., and Kiryu, Y., 2008, U.S. Geological Survey Scientific Investigations Report 2008-5198.
- Fate of consumer-product chemicals in the subsurface environment--25 years of research on Cape Cod, Massachusetts, USA: Barber, L.B., 2008, in Trefry, M.G., ed., Groundwater Quality 2007--Securing Groundwater Quality in Urban and Industrial Environments: International Association of Hydrological Sciences IAHS Redbook, IAHS Publ. 324, p. 126-132.
- Subsurface fate and transport of sulfamethoxazole, 4-nonylphenol, and 17Β-estradiol: Barber, L.B., Meyer, M.T., LeBlanc, D.R., Kolpin, D.W., Bradley, P.M., Chapelle, F.H., and Rubio, F., 2008, in Trefry, M.G., ed., Groundwater Quality 2007--Securing Groundwater Quality in Urban and Industrial Environments: International Association of Hydrological Sciences IAHS Redbook, IAHS Publ. 324, p. 133-139.
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