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Office: Chambers Technology Center 226
E-mail: wstringfellow@pacific.edu
Phone: 209.946.2497

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William T. Stringfellow, Ph.D.
Director
Ecological Engineering Research Program
CTC
3601 Pacific Avenue
Stockton, CA 95211
wstringfellow@pacific.edu

William T. Stringfellow

Academic Background

Ph. D., Environmental Sciences and Engineering (supporting program: Microbial Physiology and Genetics), University of North Carolina at Chapel Hill, 1994.

M. S., Microbiology (minor: Aquatic Ecology), Virginia Polytechnic Institute and State University, 1984.

B. S., Environmental Health, University of Georgia, 1980.

Teaching Interests

Dr. Stringfellow is assisting in the creation of a graduate program in engineering with an ecological engineering track. Classes in this program will include introductory ecological engineering courses, microbiology for engineers, environmental microbiology, engineered natural systems, bioremediation, and water quality.

Research Interests

Dr. Stringfellow is Director of the Ecological Engineering Research Program at the University of the Pacific and has a joint appointment with Berkeley National Laboratory in Berkeley, CA. His research is directed at quantifying the impact of non-point (diffuse) pollution on surface waters and the application of wetlands and natural systems as "best management practices" for the mitigation of diffuse pollution impacts.

Dr. Stringfellow's current research is focused on understanding the impact of diffuse pollution on the San Joaquin River in the Central Valley of California. The San Joaquin River is a highly engineered ecosystem and it is widely recognized that new tools are needed to manage this critical water resource. Dr. Stringfellow receives funding from state and federal agencies and is currently working on projects integrating managed wetlands and riparian habitat into programs supporting sustainable agricultural in the Central Valley.

Dr. Stringfellow is the chief scientist for the San Joaquin River Dissolved Oxygen TMDL Project, an ecosystem level assessment of non-point source impacts on water quality in the San Joaquin River in California's Central Valley.

Selected Publications

Hazen, T. C.,  E. A. Dubinsky, T. Z. DeSantis,  G. L. Andersen, Y. M. Piceno, N. Singh, J. K. Jansson,  A. Probst, S. E. Borglin, J. L. Fortney, W. T. Stringfellow, M. Bill, M. S. Conrad,  L. M. Tom, K. L. Chavarria, T. R. Alusi, R. Lamendella, D. C. Joyner, C. Spier, J. Baelum,  M. Auer, M. L. Zemla, R. Chakraborty,  E. L. Sonnenthal, P. D'haeseleer, H.-Y. N. Holman, S. Osman, Z.i Lu,  J. D. Van Nostrand, Y. Deng, J. Zhou, O. U. Mason. (2010). Deep-Sea Oil Plume Enriches Indigenous Oil-Degrading Bacteria. Science Express (www.sciencexpress.org / 24 August 2010 / Page 1 / 10.1126/science.1195979)

Stringfellow, W. T. and R. Jain. 2010. Engineering the global ecosystem. Clean Technol. Environ. Policy 12 (3):197-203.

Stringfellow, W., J. Graham, M. Rogers, S. Borglin, M. Brunell, J. Hanlon, C. Spier and K. Nguyen. 2009.  Water quality changes occurring in agricultural drains of varying riparian function. In: Matthew T. Moore and Robert Kröger (Eds.), Agricultural Drainage Ditches: Mitigation Wetlands for the 21st Century, pgs. 173 - 194, Research Signpost, Kerala, India.

Young, M., K. McLaughlin, C. Kendall, W. Stringfellow, M. Rollog, K. Elsbury, E. Donald, and A. Paytan. 2009.  Characterizing the oxygen isotopic composition of phosphate sources to aquatic ecosystems.  Environ. Sci. Technol. 43 (14): 5190-5196.

Engelage, S. K., W. T. Stringfellow, and T. Letain. 2009. Disinfection byproduct formation potentials of wetlands, agricultural drains, and rivers and the effect of biodegradation on trihalomethane precursors.  J. Environ. Quality. 38 (5): 1901-1908.

Rogers, M. R. and W. T. Stringfellow.  2009. Partitioning of chlorpyrifos to soil and plants in vegetated agricultural drainage ditches.  Chemosphere. 75 (1): 109-114

Stringfellow, W., Herr, J., Litton, G., Brunell, M., Borglin, S., Hanlon, J., Chen, C., Graham, J., Burks, R., Dahlgren, R., Kendall, C., Brown, R. and Quinn, N.  2009. Investigation of river eutrophication as part of a low dissolved oxygen total maximum daily load implementation. Water Sci. Technol. 59 (1): 9-14.

Stringfellow, W. T. 2008. Ranking methods to set restoration and remediation priorities on a watershed scale.  Water Sci. Technol. 58 (10): 2025 - 2030.

Stringfellow, W. T. Ranking tributaries for remediation priorities in a TMDL context.  2008.  Chemosphere 71 (10): 1895 - 1908.

Stringfellow, W. T.,  J. S. Hanlon, S. E. Borglin, and N. W. T. Quinn.  2008. Comparison of wetland and agriculture drainage as sources of biochemical oxygen demand in the San Joaquin River, California.  Agricultural Water Management 95 (5): 527 - 538.

Stringfellow, W., S. Borglin, J. Hanlon, J. Graham, and R. Burks. 2008. Scientific Studies Supporting Development of a Dissolved Oxygen TMDL. Water Practice 2:1: 1-10.

Campbell, C. G., M. M. Mascetti, W. Hoppes, and W. T. Stringfellow. 2007. Measurement reproducibility of the BioscanTM flow-through respirometer applied as a toxicity-based early warning system for water contamination. Environmental Practice 9: 42 - 53.

Campbell, C. G., S. E. Borglin, B. Green, A. Grayson, E. Wozi, and W. T. Stringfellow. 2006. Biologically directed environmental monitoring, fate, and transport of estrogenic endocrine disrupting compounds in water: A review. Chemosphere 65: 1265 - 1280.

Stringfellow, W. T., T. Komada, and L.-Y. Chang. 2006. Drip-feed bioreactor for the treatment of concentrated wastes with minimal dilution. Chemosphere 65: 141 - 147.

Quinn, N. W. T., K. Jacobs, C. W. Chen, and W. T. Stringfellow. 2005. Elements of a decision support system for real-time management of dissolved oxygen in the San Joaquin River Deep Water Ship Channel. Environ. Model. Soft. 20 (12):1495 - 1504.

Stringfellow, W. T. and K. -C. Oh. 2002. Initiation of methyl tert-butyl ether biotreatment in fluidized-bed bioreactors. J. Environ. Eng. 128 (9): 852 - 861.

Stringfellow, W. T. and L. Alvarez-Cohen. 1999. Evaluation of the relationship between sorption of PAHs to bacterial biomass and biodegradation. Water Res. 33: 2535-2544.

Stringfellow, W. T. and M. D. Aitken. 1995. Competitive metabolism of naphthalene, methylnaphthalenes, and fluorene by phenanthrene degrading bacteria. Appl. Environ. Microbiol. 61:357-362.

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