Douglas Kent
Research Hydrologist
National Research Program
Email: dbkent@usgs.gov
Phone: 650-329-4461
Fax: 650-329-4463
http://orcid.org/0000-0003-3758-8322
Address:
345 Middlefield Road
Menlo Park, CA 94025
Expertise
Biography
Doug Kent received a BA in chemistry from the University of California, San Diego and a PhD from Scripps Institution of Oceanography. He has conducted hydrologic research at the USGS since 1985.
Doug Kent's research at the USGS has focussed on processes influencing the mobility of metals and metalloids in groundwater, surface water, and across the groundwater-surface-water interface. Metal and metalloids examined include arsenic, chrominum, copper, lead, nickel, uranium, and zinc.
Publications:
Cozzarelli, I. M., K.J. Skalak, D. B. Kent, M.A. Engle, A. Benthem, A.C. Mumford, K. Haase, A. Farag, D. Harper, S. C. Nagel, L.R. Iwanowicz, W. H. Orem, D. M. Akob, J. B. Jaeschke, J. Galloway, M. Kohler, D. L. Stoliker, G. Jolly. 2017. Environmental Signatures and Effects of a Spill of Untreated Oil and Gas Wastewater in the Williston Basin, North Dakota. Science of the Total Environment, v. 579, 1781-1793, DOI: 10.1016/j.scitotenv.2016.11.157. http://www.sciencedirect.com/science/article/pii/S0048969716326201
Smith, R.L., Kent, D. B., Repert, D. A., Böhlke, J. K., 2017, Anoxic nitrate reduction coupled with iron oxidation and attenuation of dissolved arsenic and phosphate in a sand and gravel aquifer, Geochimica et Cosmochimica Acta, v. 196, p. 102-120. http://dx.doi.org/10.1016/j.gca.2016.09.025
Kent, D. B., Blondes, M. S., Cozzarelli, I. M., Geboy, N., LeBlanc, D. R., Ng, G. N., Repert, D. A., and Smith, R. L., 2016, Sewage disposal, petroleum spills, eutrophic lakes, and wastewater from oil and gas production: Potential drivers of arsenic mobilization in the sub-surface, in Arsenic Research and Global Sustainability, edited by P. Bhattacharya, M. Vahter, J. Jarsjö, J. Kumpiene, A. Ahmad, C. Sparrenbom, G. Jacks, M. E. Donselaar, J. Bundschuh, and R. Naidu, CRC Press, London, UK, p. 25-27.
Stoliker, D. L., Repert, D. A., Smith, R. L., Song, B., LeBlanc, D. R., McCobb, T. D., Conaway, C. H., Hyun, S. P., Koh, D. C., Moon, H. S., and Kent, D. B., 2016, Hydrologic controls on nitrogen cycling processes and functional gene abundance in sediments of a groundwater flow-through lake, Environmental Science and Technology, v. 50, p. 3649-3657. http://pubs.acs.org/doi/abs/10.1021/acs.est.5b06155
Akob, D.M., Mumford, A. C., Orem, W., Engle, M. A., Klinges, J. G., Kent, D. B., Cozzarelli, I. M, 2016, Wastewater disposal from unconventional oil and bas development degrades stream quality at a West Virginia injection facility, Environmental Science and Technology, v. 50, p. 5517-5525, DOI: 10.1021/acs.est.6b00428. [http://pubs.acs.org/doi/abs/10.1021/acs.est.6b00428]
Borden, R. C., Tillotson, J. M., Ng, G.-H., Bekins, B. A., Kent, D. B., Curtis, G. P., 2015, Extent and persistence of secondary water quality impacts after enhanced reductive bioremediation, Technical Report SERDP Project ER-2131, 54 pp.Stoliker, D. L., Repert, D. A., Smith, R. L., Song, B., LeBlanc, D. R., McCobb, T. D., Conaway, C. H., Hyun, S. P., Koh, D. C., Moon, H. S., and Kent, D. B., 2015, Hydrologic controls on nitrogen cycling processes and functional gene abundance in sediments of a groundwater flow-through lake, 2016, Environmental Science and Technology, v. 50, p. 3649-3657. [https://www.serdp-estcp.org/Program-Areas/Environmental-Restoration/Contaminated-Groundwater/Emerging-Issues/ER-2131/ER-2131-TR/(modified)/20Jun2016]
Amirbahman, A.; Kent, D. B.; Curtis, G. P., Marvin-DiPasquale, M. C., 2013, Kinetics of homogeneous and surface-catalyzed mercury(II) reduction by iron(II), Environmental Science and Technology, v. 47, n. 13, p. 7204-7213, DOI: 10.1021/es401459p. http://pubs.acs.org/doi/abs/10.1021/es401459p
Stoliker, D.L., Kaviani, N., Kent, D.B., Davis, J.A., 2013. Evaluating ion exchange resin efficiency and oxidative capacity for the separation of uranium(IV) and uranium(VI). Geochemical Transactions, v.14, doi:10.1186/1467-4866-14-1. http://www.geochemicaltransactions.com/content/14/1/1
Stoliker, D. L., Campbell, K. M., Fox, P. M., Singer, D. M., Kaviani, N., Carey, M., Peck, N. E., Bargar, J. R., Kent, D. B., Davis, J. A., 2013, Evaluating chemical extraction techniques for the determination of uranium oxidation state in reduced aquifer sediments, Environmental Science and Technology, v. 47, p. 9225-9232, DOI: 10.1021/es401450v. http://pubs.acs.org/doi/abs/10.1021/es401450v
Stoliker, D.L.; Liu, C.; Kent, D. B.; Zachara, J. M.,2013, Characterizing particle-scale equilibrium adsorption and kinetics of uranium(VI) desorption from U-contaminated sediments, Water Resources Research, v. 49, p. 1163-1177, DOI10.1002/wrcr.20104 http://onlinelibrary.wiley.com/doi/10.1002/wrcr.20104/abstract
Lamborg, C.H., Kent, D.B., Swarr, G.J., Munson, K.W., Kading, T., O'Connor, A.E., Fairchild, G.M., LeBlanc, D.R., Wiatrowski, H.A., 2013, Mercury speciation and mobilization in a wastewater-contaminated groundwater plume: Environmental Science and Technology, v. 47, p. 13239−13249. http://pubs.acs.org/doi/abs/10.1021/es402441d?prevSearch=%255BContrib%253A%2Blamborg%255D&searchHistoryKey=
Savoie, J.G., LeBlanc, D.R., Fairchild, G.M., Smith, R.L., Kent, D.B., Barber, L.B., Repert, D.A., Hart, C.P., Keefe, S.H., and Parsons, L.A., 2012, Groundwater-quality data for a treated-wastewater plume near the Massachusetts Military Reservation, Ashumet Valley, Cape Cod, Massachusetts, 2006–08: U.S. Geological Survey Data Series 648, 11 p. http://pubs.usgs.gov/ds/648/
Yin, J., Haggerty, R., Stoliker, D. L., Kent, D. B., Istok, J. D., Greskowiak, J., and Zachara, J. M., 2011, Transient groundwater chemistry near a river: Effects on U(VI) transport in laboratory column experiments: Water Resources Research, v. 47, n. 4, W04502, doi:10.1029/2010WR009369. http://www.agu.org/pubs/crossref/2011/2010WR009369.shtml
Stoliker, D. L., Kent, D. B., and Zachara, J. M., 2011, Quantifying differences in the impact of variable chemistry on equilibrium uranium(VI) adsorption properties of aquifer sediments, Environmental Science and Technology, v. 45, p. 8733-8740. http://pubs.acs.org/doi/abs/10.1021/es202677v
Zhang, S., Kent, D. B., Elbert, D. C., Shi, Z., Davis, J. A., and Veblen, D. R., 2011, Mineralogy, morphology, and textural relationships in coatings on quartz grains in sediments in a quartz-sand aquifer: Journal of Contaminant Hydrology, v. 124, n. 1-4, p. 57-67. http://www.sciencedirect.com/science/article/pii/S0169772211000179
Fox, P.M., Kent, D.B., and Davis, J.A., 2010. Redox transformations and transport of cesium and iodine (-1, 0, +5) in oxidizing and reducing zones of a sand and gravel aquifer, Environmental Science & Technology, v. 44, no. 6, p. 1940-1946. http://pubs.acs.org/doi/abs/10.1021/es902865s
Barnett, M.O., and Kent, D.B., eds., 2008, Adsorption of Metals by Geomedia II: Variables, Mechanisms, and Model Applications : Amsterdam, Elsevier, 474 p. http://www.sciencedirect.com/science/bookseries/15719197/7
Kent, D.B., Davis, J.A., Joye, J.L., and Curtis, G.P., 2008, Influence of variable chemical conditions on EDTA-enhanced transport of metal ions in mildly acidic groundwater: Environmental Pollution, v. 153, no. 1, p. 44-52. http://www.sciencedirect.com/science/article/pii/S0269749107005751
Kent, D.B., Wilkie, J.A., and Davis, J.A., 2007, Modeling the movement of a pH perturbation and its impact on adsorbed zinc and phosphate in a wastewater-contaminated aquifer: Water Resources Research, v. 43, W07440, doi:10.1029/2005WR004841. http://www.agu.org/pubs/crossref/2007/2005WR004841.shtml
Savoie, Jennifer G.; Smith, Richard L.; Kent, Douglas B.; Hess, Kathryn M.; LeBlanc, Denis R.; Barber, Larry B., 2006. Ground-Water-Quality Data for a Treated-Wastewater Plume Undergoing Natural Restoration, Ashumet Valley, Cape Cod, Massachusetts, 1994-2004. Data Series 198, CD-ROM http://pubs.usgs.gov/ds/2006/198/
Amirbahman, A., Kent, D.B., Curtis, G.P., and Davis, J.A. 2006, Kinetics of sorption and abiotic oxidation of arsenic(III) by aquifer materials: Geochimica et Cosmochimica Acta, v. 70, p. 533-547. http://www.sciencedirect.com/science/article/pii/S0016703705009592
Höhn, R., Isenbeck-Schröter, M., Kent, D.B., Davis, J.A., Jakobsen, R., Jann, S., Niedan, V., Scholz, C., Stadler, S., and Tretner, A., 2006, Tracer test with As(V) under variable redox conditions controlling arsenic transport in the presence of elevated ferrous iron concentrations: Journal of Contaminant Hydrology, v. 88, p. 36-54. http://www.sciencedirect.com/science/article/pii/S0169772206001100
Repert, D.A., Barber, L.B., Hess, K.M., Keefe, S.H., Kent, D.B., LeBlanc, D.R., and Smith, R.L., 2006, Long-term natural attenuation of carbon and nitrogen within a groundwater plume after removal of the treated wastewater source: Environmental Science and Technology, v. 40, p. 1,154-1,162. http://pubs.acs.org/doi/abs/10.1021/es051442j
Savoie, Jennifer G.; Kent, Douglas B.;S mith, Richard L.; LeBlanc, Denis R.; Hubble, David W., 2004. Changes in Ground-Water Quality near Two Granular-Iron Permeable Reactive Barriers in a Sand and Gravel Aquifer, Cape Cod, Massachusetts, 1997-2000. Water-Resources Investigations Report 2003-4309, 84 p. http://pubs.usgs.gov/wri/wri034309
Kent, D.B., and Fox, P. M., 2004, The influence of groundwater chemistry on arsenic concentrations and speciation in a quartz sand and gravel aquifer: Geochemical Transactions, v. 5, p. 1-12 http://www.geochemicaltransactions.com/content/5/1/1
McCobb, Timothy D.; LeBlanc, Denis R.; Walter, Donald A.; Hess, Kathryn M.; Kent, Douglas B.; Smith, Richard L., 2003. Phosphorus in a ground-water contaminant plume discharging to Ashumet Pond, Cape Cod, Massachusetts, 1999. Water-Resources Investigations Report 2002-4306, 77 p. http://pubs.water.usgs.gov/wri024306/
Kent, D. B., Davis, J.A., Anderson, L.C.D., Rea, B.A., and Coston, J.A., 2002, Effect of adsorbed metal ions on the transport of Zn- and Ni-EDTA complexes in a sand and gravel aquifer: Geochimica et Cosmochimica Acta, v. 66, no. 17, p. 3,017-3,036. http://www.sciencedirect.com/science/article/pii/S0016703702009080
Hess, K. M., Davis, J.A., Kent, D.B., and Coston, J.A., 2002, Multispecies reactive tracer test in an aquifer with spatially variable chemical conditions, Cape Cod, Massachusetts: Dispersive transport of bromide and nickel: Water Resources Research, v. 38, no. 8, p. 36-1 to 36-17.http://www.agu.org/pubs/crossref/2002/2001WR000945.shtml
Friedly, J.C., Kent, D.B., and Davis, J.A., 2002, Simulation of the mobility of metal-EDTA complexes in groundwater: The influence of contaminant metals: Environmental Science and Technology, v. 36, no. 3, p. 355-363. http://pubs.acs.org/doi/abs/10.1021/es010926m
Davis, J. A., Coston, J. A., Kent, D. B., Hess, K. M., Joye, J. L., Brienen, P., and Campo, K. W., 2001b, Multispecies reactive transport in a sand and gravel aquifer, Cape Cod, Massachusetts, Part 2. Transport of chromium(VI) and lead-, copper-, and zinc-EDTA complexes: U. S. Environmental Protection Agency Research Brief, EPA/600/R-01/007b, Cincinnati, OH, 47p. http://nepis.epa.gov/Exe/ZyNET.exe/100000QO.TXT?ZyActionD=ZyDocument&Client=EPA&Index=2000+Thru+2005&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&IntQFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%5C00thru05%5CTxt%5C00000003%5C100000QO.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y150g16/i425&Display=p%7Cf&DefSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&SeekPage=x&ZyPURL
Davis, J. A., Hess, K. M., Coston, J. A., Kent, D. B., Joye, J. L., Brienen, P., and Campo, K. W., 2001a, Multispecies reactive transport in a sand and gravel aquifer, Cape Cod, Massachusetts, Part 1. Experimental design and transport of bromide and nickel-EDTA tracers: U. S. Environmental Protection Agency Research Brief, EPA/600/R-01/007a, Cincinnati, OH, 38p. http://nepis.epa.gov/Exe/ZyNET.exe/100000P6.TXT?ZyActionD=ZyDocument&Client=EPA&Index=2000+Thru+2005&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&IntQFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%5C00thru05%5CTxt%5C00000003%5C100000P6.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y150g16/i425&Display=p%7Cf&DefSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&SeekPage=x&ZyPURL
Kent, D. B., Abrams, R. H., Davis, J. A., Coston, J. A., and LeBlanc, D. R., 2000, Modeling the influence of variable pH on the transport of zinc in a contaminated aquifer using semiempirical surface complexation models: Water Resources Research, v. 36, no. 12, p. 3411-3425.http://onlinelibrary.wiley.com/doi/10.1029/2000WR900244/abstract
Davis, J.A., Kent, D.B., Coston, J.A., Hess, K. M., and Joye, J., 2000, Multispecies reactive tracer test in an aquifer with spatially variable chemical conditions: Water Resources Research, v. 36, no. 1, p. 119-134. http://onlinelibrary.wiley.com/doi/10.1029/1999WR900282/abstract
Davis, J. A., Kent, D. B., Coston, J. A., Hess, K. M, and Joye, J., 1999, Multispecies reactive transport in an aquifer with spatially variable chemical conditions: An overview, Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999 -- Volume 3 -- Subsurface Contamination from Point Sources: U.S. Geological Survey Water-Resources Investigations Report 99-4018C, p. 383-392.
Davis, J. A., Kent, D. B., Coston, J. A., Hess, K. M, and Joye, J., 1999, Multispecies reactive transport in an aquifer with spatially variable chemical conditions: An overview, Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999 -- Volume 3 -- Subsurface Contamination from Point Sources: U.S. Geological Survey Water-Resources Investigations Report 99-4018C, p. 383-392.
LeBlanc, D. R., Hess, K. M, Kent, D. B., Smith, R. L., Barber, L. B., and Campo, K. W., 1999, Natural restoration of a sewage plume in a sand and gravel aquifer, Cape Cod, Massachusetts, Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999 -- Volume 3 -- Subsurface Contamination from Point Sources: U.S. Geological Survey Water-Resources Investigations Report 99-4018C, p. 245-259. [Link]
Kent D. B. and Maeder, V., 1999, Evolution of a ground-water sewage plume after removal of the 60-year-long source, Cape Cod, Massachusetts: pH and fate of phosphate and metals, Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999 -- Volume 3 -- Subsurface Contamination from Point Sources: U.S. Geological Survey Water-Resources Investigations Report 99-4018C, p. 293-304. [Link]
Kent, D. B., Davis, J. A., Abrams, R. H., and Coston, J. A., 1999, Modeling the influence of adsorption on the fate and transport of metals in shallow ground water: zinc contamination in the sewage plume on Cape Cod, Massachusetts, Morganwalp, D.W., and Buxton, H.T., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Charleston, South Carolina, March 8-12, 1999 -- Volume 3 -- Subsurface Contamination from Point Sources: U.S. Geological Survey Water-Resources Investigations Report 99-4018C, p. 361-369. [Link]
Kent, D. B., 1998, Effects of pumping rate and filtration on concentrations of inorganic solutes, in Savoie, J., and LeBlanc, D. R., eds., Water-quality data and methods of analysis for samples collected near a plume of sewage-contaminated ground water, Ashumet Valley, Cape Cod, Massachusetts, 1993-94: U.S. Geological Survey Water-Resources Investigations Report 97-4269, p. 11-15. [Link]
Abrams, R.H., Loague, Keith, and Kent, D.B., 1998, Development and testing of a compartmentalized reaction network model for redox zones in contaminated aquifers: Water Resources Research, v. 34, no. 6, p. 1531-1541. http://onlinelibrary.wiley.com/doi/10.1029/98WR00485/full
Davis, J.A., Coston, J.A., Kent, D.B., and Fuller, C.C., 1998, Application of the surface complexation concept to complex mineral assemblages: Environmental Science and Technology, v. 32, no. 19, p. 2820-2828. http://pubs.acs.org/doi/abs/10.1021/es980312q
Hess, K.M., LeBlanc, D.R., Kent, D.B., and Smith, R.L., 1996, Natural restoration of a sewage-contaminated aquifer, Cape Cod, Massachusetts, in Hydrology and hydrogeology of urban and urbanizing areas, proceedings of the conference, Boston, Mass., April 21-24, 1996: Minneapolis, Minnesota, American Institute of Hydrology, p. WQE13-WQE25.
Kohler, M., Curtis, G. P., Kent, D. B., and Davis, J. A., 1996, Experimental investigation and modeling of uranium(VI) transport under variable chemical conditions, Water Resources Research, v. 32, no. 12, 3539-3551. http://onlinelibrary.wiley.com/doi/10.1029/95WR02815/pdf
Rea, B. A., Kent, D. B., Anderson, L. C. D., Davis, J. A., and LeBlanc, D., 1996, The transport of inorganic contaminants from a sewage plume in the Cape Cod Aquifer, Massachusetts: in Mallard, G. E., ed., U. S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 191-198. http://pubs.er.usgs.gov/publication/wri944015
Davis, J.A., Kent, D.B., Coston, J.A., and Hess, K.M., 1996, Heavy-metal transport in a sand and gravel aquifer with variable chemical conditions, Cape Cod, Massachusetts, in Morganwalp, D.W., and Aronson, D.A., eds., U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993: U.S. Geological Survey Water-Resources Investigations Report 94-4015, v. 1, p. 219-225. http://pubs.er.usgs.gov/publication/wri944015
Friedly, J. C., Davis, J. A., and Kent, D. B., 1995, Modeling hexavalent chromium reduction in groundwater in field-scale transport and laboratory batch experiments, Water Resources Research, v. 31, no. 11, 2783-2794. http://onlinelibrary.wiley.com/doi/10.1029/95WR02104/abstract
Kent, D. B., Davis, J. A., Anderson, L. D., and Rea, B. A., 1995, Transport of chromium and selenium in the pristine zone of a shallow aquifer: influence of adsorption processes, Water Resources Research, v. 31, no. 4, 1041-1050. http://onlinelibrary.wiley.com/doi/10.1029/94WR02981/full
Kent, D. B., Davis, J. A., Anderson, L. D., Rea, B. A., and Waite, T. D., 1994, Transport of chromium and selenium in the suboxic zone of a shallow aquifer: influence of redox and adsorption reactions, Water Resources Research v. 30, no. 4, 1099-1114. http://onlinelibrary.wiley.com/doi/10.1029/93WR03244/abstract
Anderson, L. C. D., Kent, D. B., and Davis, J. A., 1994, Batch experiments characterizing the reduction of Cr(VI) using suboxic material from a mildly reducing sand and gravel aquifer, Environmental Science and Technology, v. 28, 178-185. http://pubs.acs.org/doi/abs/10.1021/es00050a025
Davis, J. A., Kent, D. B., Rea, B. A., Maest, A. S., and Garabedian, S. P., 1993, Influence of redox environment and aqueous speciation on metal transport in groundwater: preliminary results of tracer injection studies: in Metals in Groundwater, Allen, H., Brown, D., and Perdue, E. M., eds., Lewis Publishers, Chelsea, MI, p. 223-273.
Davis, J. A., Waite, T. D., Kent, D. B., and Anderson, L. D. C., 1991, Reduction of chromium(VI) under mildly reducing conditions in a shallow, sand and gravel aquifer: in Mallard, G. E., ed., U. S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 72-77.
Rea, B. A., Kent, D. B., LeBlanc, D. R., and Davis, J. A., 1991, Mobility of zinc in a sewage-contaminated aquifer, Cape Cod, Massachusetts: in Mallard, G. E., and Aranson, D. A., eds., U. S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, 88-95.
Davis, J. A., Kent, D. B., Rea, B. A., Garabedian, S. P., 1991, and Anderson, L. C. D., Influence of the geochemical environment on heavy metal transport in ground water: in Mallard, G. E., ed., U. S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, p. 72-77.
Anderson, L. D., Kent, D. B., and Davis, J. A., 1991, Adsorption and reduction of Cr(VI) under oxic conditions in a shallow, sand and gravel aquifer in Cape Cod, Massachusetts: in Mallard, G. E., ed., U. S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, p. 63-71.
Kent, D. B., Davis, J. A., Anderson, L. D., and Rea, B. A., 1991, Transport of zinc in the presence of a strong complexing agent in a shallow aquifer on Cape Cod, Massachusetts: in Mallard, G. E., ed., U. S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Monterey, California, March 11-15, p. 78-83.
Davis, J. A., and Kent, D. B., 1990, Surface complexation modeling in aqueous geochemistry: in Hochella, M. F., and White, A. F., eds., Mineral-water Interface Geochemistry, Reviews in Mineralogy, v. 23, pp. 177-260. http://www.wipp.energy.gov/library/cra/2009_cra/references/Others/Davis_Kent_1990_Surface_Complexation_Modeling_in_Aqueous_Geochemistry_ERMS241473.pdf
Davis, J. A., Kent, D. B., and Rea, B. A., 1989, Field and laboratory studies of coupled flow and chemical reactions in the ground‑water environment: in Mallard, G. E. and Ragone, S. E., eds., U. S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the technical meeting, Phoenix, Arizona, September 26-30, 1988: U. S. Geological Survey Water-Resources Investigations Report 88-4220.
Kent, D. B., Tripathi, V. S., Ball, N. B., and Leckie, J. O., 1986, Surface‑complexation modeling of radionuclide adsorption in sub‑surface environments: Dept. Civil Engineering Tech. Rept. # 294, Stanford University, Stanford, California, 110p; also NUREG/CR‑ 4807(SAND86‑7175), Sandia National Laboratory, New Mexico.
Kent, D. B., and Kastner, M., 1985, Mg2+ removal in the system Mg2+‑amorphous SiO2‑H2O by adsorption and Mg‑hydroxysilicate precipitation: Geochimica et Cosmochimica Acta, v. 49, p. 1123‑1136. http://www.sciencedirect.com/science/article/pii/0016703785900031
Kent, D. B., On the surface chemical properties of synthetic and biogenic amorphous silica: Ph.D. dissertation, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, California, 420 pgs., 1983.
Science and Products
Publications
![[title_1]](https://web.archive.org/web/20170208070210im_/http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg)
Ground-Water-Quality Data for a Treated-Wastewater Plume Undergoing Natural Restoration, Ashumet Valley, Cape Cod, Massachusetts, 1994-2004
Savoie, Jennifer G.; Smith, Richard L.; Kent, Douglas B.; Hess, Kathryn M.; LeBlanc, Denis R.; Barber, Larry B.Changes in Ground-Water Quality near Two Granular-Iron Permeable Reactive Barriers in a Sand and Gravel Aquifer, Cape Cod, Massachusetts, 1997-2000
Savoie, Jennifer G.; Kent, Douglas B.; Smith, Richard L.; LeBlanc, Denis R.; Hubble, David W.