National Research Program

Coupled Transport and Geochemical Processes Determining the Fate of Chemicals in Surface Waters

Coupled transport and biogeochemical processes determine the fate of chemicals both naturally present in surface waters and those introduced through anthropogenic activities. In mountainous environments, coupled processes operate at scales which can be years and kilometers in watersheds or minutes and decimeters in the hyporheic zone. Although individual processes are often well understood in isolation, the ability to quantify chemical fate across the stream-watershed continuum requires development in design of field experiments and mechanistic formulations to integrate interpretation of multiple processes. This project will develop experimental field techniques and mechanistic formulations to quantitatively identify rates and extents of transport within the stream- watershed continuum. It will focus on transport processes which most influence the fate of chemicals introduced from the surrounding watershed into pristine streams (for example, natural dissolved organic materials and nutrients, as well as, acid mine drainage).

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Payn, R.A., Gooseff, M.N., McGlynn, B.L., Bencala, K.E., and Wondzell, S.M., in press, Exploring changes in the spatial distribution of stream baseflow generation during a seasonal recession: Water Resources Research.

Bencala, K. E., 2011, Stream-groundwater interactions, in Wilderer, P., ed., Treatise on Water Science: Elsevier Science, v. 2, p. 537-546, doi:10.1016/B978-0-444-53199-5.00115-9 (on-line abstract of chapter)

Bencala, K.E., Gooseff, M.N., and Kimball, B.A., 2011, Rethinking hyporheic flow and transient storage to advance understanding of stream-catchment connections: Water Resources Research, v. 47, W00H03. doi:10.1029/2010WR010066 (on-line abstract of journal article)

Jencso, K. G., McGlynn, B.L., Gooseff, M.N., Bencala, K.E., and Wondzell, S.M., 2010, Hillslope hydrologic connectivity controls riparian groundwater turnover: Implications of catchment structure for riparian buffering and stream water sources, : Water Resources Research, v. 46, W10524, doi:10.1029/2009WR008818. (on-line abstract of journal article)

Jencso, K. G., McGlynn, B.L., Gooseff, M.N., Wondzell, S.M., Bencala, K.E., and Marshall, L.A., 2009, Hydrologic connectivity between landscapes and streams: Transferring reach- and plot-scale understanding to the catchment scale: Water Resources Research, v. 45, W04428, doi:10.1029/2008WR007225 29. (on-line abstract of journal article)

Payn, R.A., Gooseff, M.N., McGlynn, B.L., Bencala, K.E., and Wondzellk, S.M., 2009, Channel water balance and exchange with subsurface flow along a mountain headwater stream in Montana, United States, Water Resources Research W11427, doi:10.1029/2008WR007644.. (on-line abstract of journal article)

Runkel, R.L., Bencala, K.E., Kimball, B.A., Walton-Day, K., and Verplanck, P.L., 2009, A comparison of pre- and post-remediation water quality, Mineral Creek, Colorado: Hydrological Processes, v. 23, no. 23, p. 3319-3333. (on-line abstract or on-line journal article in pdf format, 558 KB, published by John Wiley & Sons as a U.S. government work in the public domain )

Caruso, B.S., Cox, T.J., Runkel, R.L., Velleux, M.L., Bencala, K.E., Nordstrom, D.K., Julien, P.Y., Butler, B.A., Alpers, C.N., Marion, A., and Smith, K.S., 2008, Metals fate and transport modelling in streams and watersheds: state of the science and USEPA workshop review: Hydrological Processes, v. 22, p. 4011-4021.

Gooseff, M.N., Bencala, K.E., and Wondzell, S.M., 2008, Solute transport along stream and river networks, in Rice, S.P., Roy, A.G., and Rhoads, B.L., eds., River Confluences, Tributaries and the Fluvial Network: Chicester, John WIley & Sons, Ltd., Chap. 18, p. 395-417.

Cox, M.H., and Schemel, L.E., 2007, Chemical and hydrologic data from the Cement Creek and upper Animas River confluence and mixing zone, Silverton, Colorado, September 1997: U.S. Geological Survey Open-File Report 2007-1048. (on-line abstract or on-line report in pdf format, 242 KB; on-line data file in excel format, 80 KB or in pdf format, 11KB)

Schemel, L.E., and Cox, M.H., 2007, Floodwater chemistry in the Yolo Bypass during winter and spring, 1998: U.S. Geological Survey Open-File Report 2007-1025, 13 p. (on-line abstract or on-line report in pdf format, 486, KB)

Schemel, L.E., Kimball, B.A., Runkel, R.L., and Cox, M. H.., 2007, Formation of mixed Al–Fe colloidal sorbent and dissolved-colloidal partitioning of Cu and Zn in the Cement Creek - Animas River Confluence,Silverton, Colorado: Applied Geochemistry, v. 22, no. 7, p. 1,467-1,484. (on-line abstract of journal article)

Bencala, K.E. , Hamilton, D.B. and Petersen, J.H., 2006, Science for maintaining riverine ecosystems: Actions for the USGS identified in the workshop “Analysis of Flow and Habitat for Aquatic Communities”: U.S. Geological Survey Open-File Report 2006-1256, 13 p. (on-line executive summary or on-line report in pdf format, 849 kb)

Schemel, L.E., Cox, M.H., Runkel, R.L., Kimball, B.A., 2006, Multiple injected and natural conservative tracers quantify mixing in a stream confluence affected by acid mine drainage near Silverton, Colorado: Hydrological Processes, v. 20, no. 13, p. 2727-2743. (on-line abstract or on-line article in pdf format - published on-line in 2006 by John Wiley & Sons as a U.S. government work in the public domain)

Bencala, K.E., 2005, Hyporheic exchange flows, in Anderson, M., ed., Encyclopedia of Hydrological Sciences, v. 3, part 10, chapter 113: New Jersey, John Wiley and Sons, p. 1,733-1,740. (on-line article - US Government work, in the public domain)

Gooseff, M.N., Bencala, K.E., Scott, D.T., Runkel, R.L., and McKnight, D.M., 2005, Sensitivity analysis of conservative and reactive stream transient storage models applied to field data from multiple-reach experiments: Advances in Water Resources, v. 28, p. 479-492. (on-line abstract of journal article)

Schemel, L.E., and Cox, M.H., 2005, Descriptions of the Animas River-Cement Creek confluence and mixing zone near Silverton, Colorado, during the late summers of 1996 and 1997: U.S. Geological Survey Open-File Report 2005-1064, 4 p. (on-line report)

American Society of Limnology and Oceanography, 2003, Emerging Research Questions for Limnology - Study of Inland Waters: Workshop, Dec, 2002, American Society of Limnology and Oceanography, Waco, Texas, 48 p.

Cox, M.H., and Hatch, C., 2003, Water temperature, streamflow, and ground-water elevation in and adjacent to the Russian River between Hopland and Guerneville, CA from 1998-2002: U.S. Geological Survey Open-File Report 03-454. (on-line report)

Cox, M.H., Mendez, G.O., Kratzer, C.R., and Reichard, E.G., 2003, Evaluation of tracer tests completed in 1999 and 2000 on the upper Santa Clara River, Los Angeles and Ventura Counties, California: U.S. Geological Survey Water-Resources Investigations Report 03-4277. (on-line abstract or to download report in pdf format - 5.8 MB)

Scott, D.T., Gooseff, M.N., Bencala, K.E., and Runkel,R.L., 2003, Automated calibration of a stream solute transport model: implications for interpretation of biogeochemical parameters:Journal of the North American Benthological Society, v. 22, no. 4, p. 492-510. (on-line abstract)

Kenneth E. Bencala
U.S. Geological Survey, 345 Middlefield Rd, MS 439, Menlo Park, CA 94025
Telephone: 650-329-4409

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