John E. Tobiason

Professor of Civil & Environmental Engineering

Research Areas

 

Research Projects

Graduate Students & Post Docs

Selected publications

Conference Proceedings & Presentations

Reports

 

Research Projects: Recent and On-going

 

Graduate Students and Post-Docs

Ken Mercer

Jill Russell

Thomas Matthews

Anh Nguyen

 

Journal Publications

Lawler, D.F., O'Melia, C.R. and Tobiason, J.E., “Integral Water Treatment Plant Design: From Particle Size to Plant Performance,” In Particulates in Water: Characterization, Fate, Effects, and Removal , Kavanaugh and Leckie, editors, Advances in Chemistry Series No. 189, American Chemical Society, Washington, D.C., 1980.

Tobiason, J.E. and O'Melia, C.R., “Physicochemical Aspects of Particle Removal in Depth Filtration,” Journal American Water Works Association , Vol. 80, No. 12, pp. 54-64, 1988.

Tobiason, J.E., “Chemical Effects on the Deposition of Non-Brownian Particles”, Colloids and Surfaces , Vol. 39, pp. 53-77, 1989.

Westerhoff, P.K. and Tobiason, J.E., “Effects of Flocculation on Direct Filtration”, Journal of New England Water Works Association , Vol. 105, No. 2, pp. 95-109, 1991.

McEnroe, R.L., Tobiason, J.E. and Switzenbaum, M.S., “Effects of Ozonation and Direct Filtration on the Bacterial Growth Potential of Drinking Water”, Journal New England Water Works Association , Vol. 106, No. 4, p. 244, 1992.

Tobiason, J.E., Edzwald, J.K., Schneider, O.D., Fox, M.B. and Dunn, H.J., “Pilot Study of the Effects of Ozone and PEROXONE on In-Line Direct Filtration”, Journal American Water Works Association , Vol. 84, No. 12, pp. 72-84, 1992.

Tobiason, J.E., Johnson, G.S., Westerhoff, P.K. and Vigneswaran, B., “Particle Size and Chemical Effects on Contact Filtration Performance”, Journal Environmental Engineering , Vol. 119, No. 3, pp. 520-539, 1993.

Tobiason, J.E., Edzwald, J.K., Reckhow, D.A. and Switzenbaum, M.S., “Effect of Pre-Ozonation on Organics Removal by In-Line Direct Filtration”, Water Science and Technology , Vol. 27, No. 11, pp. 81-90, 1993.

Edwards, M., Benjamin, M.M. and Tobiason, J.E., “Effects of Ozonation on Coagulation Using Polymer Alone and Polymer/metal Salt Mixtures”, Journal American Water Works Association , Vol. 86, No. 1, pp. 105-116, 1994.

Tobiason, J.E., and Vigneswaran, B., “Evaluation of a Modified Model for Deep Bed Filtration”, Water Research , Vol. 28, No. 2, pp. 335-342, 1994.

Tobiason, J.E., “Optimal Use of Ozonation and GAC in Direct Filtration for Drinking Water Treatment”, in Chemical Water and Wastewater Treatment III , R. Klute and H.H. Hahn, editors, Springer-Verlag, Berlin, pp. 155-171, 1994.

Schmidt, P.D., Tobiason, J.E., Edzwald, J.K. and Dunn, H., “DAF Treatment of a Reservoir Water Supply: Comparison with In-Line Direct Filtration and Control of Organic Matter”, Water Science & Technology , Vol. 31, No. 3-4, pp.103-111, 1995.

Tobiason, J.E., Reckhow, D.A., and Edzwald, J.K., “Effects of Ozonation on Optimal Coagulant Dosing in Drinking Water Treatment”, J Water SRT-Aqua , Vol. 44, No. 3, pp. 142-150, 1995.

Nocito-Gobel, J. and Tobiason, J.E., “Effects of Ionic Strength on Colloid Deposition and Release”, Colloids and Surfaces A , Vol. 107, pp. 223-231, 1996.

McClellan, J.C., Reckhow, D.A., Tobiason, J.E., Edzwald, J.K. and Hess, A.F., “Empirical Models for Chlorination By-Products: Four Years of Pilot Experience in Southern Connecticut”, in Disinfection By-Products and NOM Precursors: Chemistry, Characterization and Control , R.A. Minear & G.L. Amy, editors, ACS Symposium Series 649, American Chemical Society, Washington, D.C., pp. 26-47, 1996.

Valade, M.T., Edzwald, J.K., Tobiason, J.E., Dahlquist, J., Hedberg, T. and Amato, T., “Pretreatment Effects on Particle Removal by Flotation and Filtration”, Journal American Water Works Association , Vol. 88, No. 12, pp. 35-47, 1996.

Dahlquist, J., Edzwald, J.K., Tobiason, J.E., Hedberg, T., Amato, T. and Valade, M.T., “High Rate Flocculation, Flotation and Filtration in Potable Water Treatment”, in Chemical Water and Wastewater Treatment IV , H.H. Hahn, E. Hoffman and H. Ødegaard, Editors, Springer, New York, pp. 201-211, 1996.

Garvey, E., Tobiason, J.E., Hayes, M., Wolfram, E., Reckhow, D.A., and Male, J.W., “Coliform Transport in a Pristine Reservoir: Modeling and Field Studies”, Water Science and Technology , Vol. 37, No. 2, pp. 137-144, 1998.

Edzwald, J.K. and Tobiason, J.E., “Enhanced versus Optimized Multiple Objective Coagulation”, in Chemical Water and Wastewater Treatment V , H.H. Hahn, E. Hoffman and H. Ødegaard, Editors, Springer, New York, pp. 113-124, 1998.

Edzwald, J.K., Tobiason, J.E., Amato, T. and Maggi, L.J., “Integrating of High Rate DAF Technology into Plant Design”, Journal American Water Works Association , Vol. 91, No. 12, pp. 41-53, 1999.

Edzwald, J.K.and Tobiason, J.E., “Enhanced Coagulation: US Requirements and a Broader View”, Water Science and Technology , Vol. 40, No. 9, pp. 63-70, 1999.

McClellan, J.N., Reckhow, D.A., Tobiason, J.E., Edzwald, J.K. and Smith, D.A., “A Comprehensive Kinetic Model for Chlorine Decay and Chlorination By-Product Formation”, Chapter 15 in Natural Organic Matter and Disinfection By-Products , edited by S. Barrett, S. Krasner and G. Amy, ACS Symposium Series 761, American Chemical Society, Washington, DC, pp. 223-246, 2000.

Schneider, O.D. and Tobiason, J.E., “Effects of Preozonation on Coagulant/Particle/NOM Interactions”, Journal American Water Works Association , Vol. 92, No. 10, pp. 74-87, 2000.

Edzwald, J.K., Tobiason, J.E., Parento, L.M., Kelley, M.B., Kaminski, G.S., Dunn, H.J. and Galant, P.B., “ Giardia and Cryptosporidium Removals by Clarification and Filtration Under Challenge Conditions”, Journal American Water Works Association , Vol. 92, No. 12, pp. 70-84, 2000.

Amato, T., Edzwald, J.K., Tobiason, J.E., Dahlquist, J. and Hedberg, T., “An Integrated Approach to Dissolved Air Flotation”, Water Science & Technology , Vol. 43, No. 8, pp. 19-26, 2001

Edzwald, J.K., Tobiason, J.E., Dunn, H.J., Kaminski, G.S. and Galant, P.B., “Removal and Fate of Cryptosporidium in Dissolved Air Drinking Water Plants ”, Water Science & Technology , Vol. 43, No. 8, pp. 51-57, 2001

Edzwald, J.K., Tobiason, J.E., “Fate and Removal of Cryptosporidium in a Dissolved Air Flotation Water Plant with and without Recycle of Waste Filter Backwash Water”, Journal Water Science & Technology: Water Supply , Vol 2, No 2, pp 85-90, 2002.

Garvey, E. and Tobiason, J.E., “Assessment of Natural Organic Matter in Quabbin Reservoir”, Journal of Water Supply: Research and Technology – AQUA , Vol. 52, No. 1, pp.19-36, 2003.

Edzwald, J.K., Tobiason, J.E., Udden, C., Kaminski, G.S., Dunn, H.J. and Galant, P.B., “Impacts of Recycle of Waste Filter Backwash on the Removal of Cryptosporidium ”, Journal of Water Supply: Research and Technology – AQUA , Vol. 52, No. 4, pp.243-258, 2003.

Tobiason, J.E., Edzwald, J.K., Gilani, V., Kaminski, G.S., Dunn, H.J. and Galant, P.B., “Effects of Waste Filter Backwash Recycle Operation on Clarification and Filtration”, Journal of Water Supply: Research and Technology – AQUA , Vol. 52, No. 4, pp.259-276, 2003.

Tobiason, J.E., Edzwald, J.K., Levesque, B.R., Kaminski, G.S., Dunn, H.J. and Galant, P.B., “Full-Scale Assessment of the Impacts of Recycle of Waste Filter Backwash”, Journal American Water Works Association , Vol. 95, No. 7, pp. 80-93, 2003.

Ahlfeld, D.P., Joaquin, A., Tobiason, J.E., and Mas, D., “Case Study: Impact of Reservoir Stratification on Interflow Travel Time”, Journal of Hydraulic Engineering (ASCE) , Vol. 129, No. 12, pp. 966-975, 2003.

Garvey, E. and Tobiason, J.E., “Relationships between Measures of Natural Organic Matter in Quabbin Watershed”, Journal American Water Works Association , Vol. 95, No. 11, pp. 73-84, 2003.

Corbin, M.J., Reckhow, D.A., Tobiason, J.E., Dunn, H.J., and Kaminski, G.S., “ Controlling DBPs by Delaying Chlorine Addition until after Filtration ”, Journal New England Water Works Association , Vol. 117, No. 4, pp. 243-251, 2003.

Kim, J. and Tobiason, J.E., “Particles in Filter Effluent: The Roles of Deposition and Detachment”, Environmental Science & Technology , Vol. 38, No. 22, pp. 6132-6138, 2004.

Kim, J. and Tobiason, J.E., “Origins of Filter Effluent Particles: Experimental Study of Particle Deposition and Detachment”, Water Science and Technology , Vol. 50, No. 12, pp. 215-222, 2004.

Persson, F., Långmark, J., Heinicke, G., Hedberg, T., Tobiason, J., Stenström, T. and Hermansson, M., “Characterisation of the behavior of particles in biofilters for pre-treatment of drinking water”, Water Research , Vol. 39, No. 16, pp. 3791-3800, 2005.

Kennedy, M.G., Ahlfeld, D.P., Schmidt, D.P and Tobiason, J.E., “Three Dimensional Modeling for Estimation of Hydraulic Retention Time in a Reservoir”, Journal of Environmental Engineering (ASCE) , Vol. 132, No. 9, pp. 976-984.

 

Conference Proceedings and Presentations

Tobiason, J.E. and O'Melia, C.R., “ Lake Acidification and Pollutant Partitioning,” Proceedings of the First Annual Link Conference on Energy, Rochester , New York , June 1985.

Wang, Z., Tobiason, J.E. and O'Melia, C.R., “Chemical Aspects of Packed Bed Filtration in Water Treatment,” Proceedings of the 4th World Filtration Congress, Part I, edited by R. Vanbrabant, J. Hermia and R. A. Weiler, Ostend, Belgium, pp. 8.23-8.27, April 1986.

Tobiason, J.E., Reckhow, D.A., Edzwald, J.K., Franklin, K.M. and Paralakar, A.S., “Use of Ozone as an Aid to Coagulation/Filtration”, Proceedings of the Environmental Engineering Specialty Conference, American Society of Civil Engineers, Arlington, Virginia, edited by C.R. O'Melia, July 1990, pp. 525-531.

Tobiason, J.E., Johnson, G.S. and Westerhoff, P.K., “Particle Size and Filter Performance: Model Studies”, Proceedings of the Environmental Engineering Specialty Conference, American Society of Civil Engineers, Arlington, Virginia, edited by C.R. O'Melia, July 1990, pp. 733-739.

Westerhoff, P.K. and Tobiason, J.E., “The Effects of Flocculation on Direct Filtration Performance”, Proceedings of the Annual Conference, American Water Works Association, Philadelphia , PA , June 1991, p. 683.

Tobiason, J.E., Westerhoff, P.K., Johnson, G.S. and Vigneswaran, B., “Direct Filtration of Polydisperse Suspensions”, Advances in Filtration and Separation Technology , Volume 5 , Separation Problems & The Environment , B. Scheiner, editor, American Filtration Society, Gulf Publishing Company, Houston, 1992.

Reckhow, D.A., Tobiason, J.E., Switzenbaum, M.S., McEnroe, R.L., Xie, Y., Zhou, X. and Dunn, H., “Control of Disinfection Byproducts and AOC by Preozonation and Biologically-Active In-Line Direct Filtration”, Proceedings of the Annual Conference, American Water Works Association, Vancouver, British Columbia, June 1992, pp. 487-503.

McEnroe, R.L., Tobiason, J.E. and Switzenbaum, M.S., “Reduction of the Bacterial Regrowth Potential with Preozonation and Biologically Active In-Line Direct Filtration”, Proceedings of the Annual Conference, American Water Works Association, Vancouver, British Columbia, June 1992, pp. 447-456.

Tobiason, J.E. and Vinod, N.K., “Effects of Pre-Oxidation on In-Line Filtration: Particle and Manganese Removal”, in Environmental Engineering, Saving a Threatened Resource-In search of Solutions , ed. by F.P. Linaweaver, Proceedings of Environmental Engineering Sessions at Water Forum 92, American Society of Civil Engineers, Baltimore, Maryland, August 1992, pp. 520-525.

Zhou, X., Reckhow, D.A. and Tobiason, J.E., “Formation and Removal of Aldehyde in Drinking Water Treatment Processes”, Proceedings 1992 Water Quality Technology Conference, American Water Works Association, Toronto, Ontario, November 1992, pp. 291-315.

Reckhow, D.A., Xie, Y., McEnroe, R.L., Byrnes, P., Tobiason, J.E. and Switzenbaum, M.S., “The Use of Chemical Surrogates for Assimilable Organic Carbon”, Proceedings of the Annual Conference, American Water Works Association, San Antonio, Texas, June 1993, Water Quality pp. 251-278.

Schneider, O.D., Tobiason, J.E., Reckhow, D.A. and Weiner, J.M., “A Bench Scale Evaluation of Oxidant Effects on the Treatment of a River Supply”, Proceedings of the Annual Conference, American Water Works Association, San Antonio , Texas , June 1993, Water Research pp. 321-343.

Tobiason, J.E., Reckhow, D.A., and Edzwald, J.K., “Effects of Ozonation on Optimal Coagulant Dosing in Drinking Water Treatment”, IWSA-IAWQ Joint Specialist Group Workshop on Optimal Dosing of Coagulants and Flocculants, Mülheim, Germany, January 1994.

Reckhow, D.A., Weiner, J.M., MacNeil, A. and Tobiason, J.E., “Effects of Preoxidation on the Rates of Formation of Chlorination Byproducts”, Proceedings of the American Chemical Society 210 th National Meeting, Environmental Chemistry Division Preprints, pp. 370-372, 1995.

McClellan, J.C., Reckhow, D.A. and Tobiason, J.E., “Removal of THM and HAA Precursors Using Ozone and Biologically Active GAC”, Proceedings of the Annual Conference, American Water Works Association Annual Meeting, Toronto , Canada , June 1996.

Tobiason, J.E., Burns, M., Gaffney, L. and Schneider, O.D., “Particles in Filtered Waters: Effects of Backwash Remnants and Initial Filtration Rate”, Proceedings of the Annual Conference, American Water Works Association Annual Meeting, Toronto , Canada , pp. 445-462, June 1996.

Tobiason, J.E., Burns, M., Gaffney, L. and Hess, A.., “Particles in Filtered Waters: Effects of Physical and Chemical Operating Parameters”, Proceedings of the Water Quality Technology Conference, American Water Works Association, Boston , Massachusetts , November 1996.

Tobiason, J.E., Edzwald, J.K., and Reckhow, D.A., “Optimizing and Improving Drinking Water Treatment Facilities: Use of Bench, Pilot and Full-Scale Studies”, Proceedings of the IWSA/IAWQ International Conference, Upgrading of Water and Waste Water Systems, Kalmar, Sweden, May 1997.

Garvey, E., Tobiason, J.E., Hayes, M., Wolfram, E., Reckhow, D.A., and Male, J.W., “Coliform Transport in a Pristine Reservoir: Modeling and Field Studies”, Proceedings of the IWSA/IAWQ Conference, Reservoir Management and Water Supply - An Integrated System, Prague, Czech Republic, May 1997.

Vigneswaran, B. and Tobiason, J.E., “Significance of the Volume of Deposit During Deep Bed Filtration”, Proceedings of the American Water Works Association 1998 Annual Conference, Dallas , Texas , June 1998.

Reckhow, D.A., Tobiason, J.E., Pouvesle, W., McClellan, J.C., Edzwald, J.K. and Smith, D., “Evolution of Natural Organic Matter Through a Drinking Water Distribution System”, Proceedings of the NOM Workshop, Poitiers, France, 18-19 September 1998, pp.20-1 to 20-4.

Levesque, B.R., Tobiason, J.E., Parmenter, W. and Edzwald, J.K., “Filter Backwash Recycle: Quality Characteristics and Impacts on Treatment”, Proceedings of the 1999 American Water Works Association Annual Conference, Chicago , IL , June 1999.

Edzwald, J.K., Tobiason, J.E., Amato, T. and Maggi, L.J., “Integration of High Rate Dissolved Air FlotationTreatment Technology into Water Treatment Plant Design”, Proceedings of the 1999 American Water Works Association Annual Conference, Chicago , IL , June 1999.

Edzwald, J.K., Tobiason, J.E., “Enhanced Coagulation: USA Requirements and a Broader View”, IAWQ/IWSA Joint Specialist Group on Particle Separation International Conference, Removal of Humic Substances from Water , Trodheim , Norway , June 1999.

Tobiason, J.E., Edzwald, J.K., Amato, T. and Maggi, L.J., “Effects of Dissolved Air Flotation Hydraulic Loading Rate on Water Treatment Performance”, Environmental Engineering '99 , edited by G.C. Schafran, Proceedings of the 1999 ASCE-CSCE National Conference on Environmental Engineering, pp. 516-525, July1999.

Edzwald, J.K., Tobiason, J.E., Parento, L.M., Kelley, M.B., Kaminski, G.S., Dunn, H.J. and Galant, P.B., “Clarification and Filtration Performance for Removal of Giardia and Cryptosporidium ”, Proceedings of the 1999 American Water Works Association Water Quality Technology Conference, Tampa , FL , November 1999.

Tobiason, J.E., Levesque, B.R., Edzwald, J.K., Kaminski, G.S., Dunn, H.J. and Galant, P.B., “Water Quality Impacts of Filter Backwash Recycle”, Proceedings of the 1999 American Water Works Association Water Quality Technology Conference, Tampa, FL, November 1999.

Garvey, E.A. and Tobiason, J.E., “Natural Organic Matter Fate and Transport in an Oligotrophic Drinking Water Supply Reservoir”, Proceedings of the American Water Works Association Annual Conference, Denver , Colorado , June, 2000.

Edzwald, J.K., Tobiason, J.E., Dunn, H.J., Kaminski, G.S. and Galant, P.B., “Removal and Fate of Cryptosporidium in Dissolved Air Flotation Drinking Water Plants ”, Proceedings of the 4 th International Conference on Flotation in Water and Waste Water Treatment, Helsinki , Finland , September, 2000.

Amato, T., Edzwald, J.K., Tobiason, J.E., Dahlquist, J. and Hedberg, T., “DAF Rapide Ò : The Integrated Approach to Dissolved Air Flotation”, Proceedings of the 4 th International Conference on Flotation in Water and Waste Water Treatment, Helsinki , Finland , September, 2000.

Tobiason, J.E., Edzwald, J.K., Udden, C., Gilani, V., Kim, J., Kaminski, G., Dunn, H. and Galant, P., “Impacts of Filter Backwash Recycle on Cryptosporidium and Particle Removals by Clarification and Filtration”, in Advances in Granular Filtration in Water Treatment , Proceedings of the International Conference, Chartered Institution of Water and Environmental Management, London, UK, April, 2001, pp. 93-103.

Tobiason, J.E. and Kim, J., “Particles in Filter Effluent: Exploring the Roles of Removal and Detachment”, in Advances in Granular Filtration in Water Treatment , Proceedings of the International Conference, Chartered Institution of Water and Environmental Management, London, UK, April, 2001, pp. 361-369.

Tobiason, J.E., Edzwald, J.K., Gilani, V., Kaminski, G., Dunn, H. and Galant, P., “Effects of Filter Backwash Recycle on Treatment Performance”, Proceedings of the American Water Works Association Annual Conference CD-ROM, Washington , DC , June, 2001.

Edzwald, J.K. and Tobiason, J.E., “Fate and Removal of Cryptosporidium in a Dissolved Air Flotation Water Plant with and without Recycle of Waste Filter Backwash Water”, Proceedings of the International Water Association 2001 Berlin Water Congress , Berlin , Germany , October 2001.

Kim. J. and Tobiason, J.E., “Origins of Filter Effluent Particles: Experimental Study of Particle Deposition and Detachment”, Proceedings of the International Water Association Conference, Nano- and Microparticles in Water and Wastewater Treatment, Zurich , Switzerland , September 2003.

Roberts, M.G. and Tobiason, J.E., “NOM Modeling for an Oligotrphic Water Supply Reservoir”, Proceedings of the 2003 American Water Works Association Water Quality Technology Conference, Philadelphia , PA , November 2003 .

Buttrick, D., Tobiason, J.E. and Ahlfeld, D.P., “Modeling as an Operational Tool for an Unfiltered Surface Water Supply”, Proceedings of the American Water Works Association Annual Conference, CD-ROM, San Francisco , CA , June 2005.

Edzwald, J.K., Tobiason, J.E. and Kelley, M.B., “ Optimum Alum Coagulation Conditions for Cryptosporidium Removal”, Proceedings of the 2005 American Water Works Association Water Quality Technology Conference, Quebec City, Quebec, Canada , November 2005.

Tobiason, J.E., Ahlfeld, D.P., Rees, P.S., Reckhow, D.A. and S.C. Long. 2006. “Optimizing Water Supply Protection: Measurements, Models and Management”. Proceedings of “Safe Drinking Water: Where Science Meets Policy” Conference, March 16-17, 2006 , Chapel Hill , NC .

 

 

Research Reports

Tobiason, J.E., “Packed Bed Filtration: Experimental Investigation and Conceptual Analysis of a Filter Ripening Model”, unpublished Master of Science report, University of North Carolina, Chapel Hill, NC, 1979.

Tobiason, J.E. and O'Melia, C.R., “Filtration Performance in Water and Wastewater Treatment: Theory and Measurement,” Water Resources Research Institute of the University of North Carolina , Report No. UNC-WRRI-82-172, 1982.

Tobiason, J.E., “Physicochemical Aspects of Particle Deposition in Porous Media”, unpublished Ph.D. dissertation (Advisor: Charles R. O'Melia), Johns Hopkins University , 1987.

Johnson, G.S. and Tobiason, J.E., “Fundamental Aspects of Particle Deposition in Porous Media: Effects of Particle Size Distribution”, final report for Engineering Foundation, Research Initiation Grant RI-A-88-2, 1990.

Tobiason, J.E., Edzwald, J.K., Schneider, O.D. and Fox, M.B., “Effects of Ozone and Peroxone on Direct Filtration”, Summary Report for South Central Connecticut Regional Water Authority, December 1990.

Reckhow, D.A., Edzwald, J.K. and Tobiason, J.E., “Ozone as an Aid to Coagulation and Filtration”, AWWA Research Foundation, American Water Works Association, Denver , Colorado , 1993.

Nocito-Gobel, J. and Tobiason, J.E., “Hydraulic Modeling of Tidal Estuary Bridge Crossings”, final report for the Massachusetts Highway Department, University of Massachusetts Transportation Center Report Number 94-3, 1994.

Edzwald, J.K. and Tobiason, J.E.. “Dissolved Air Flotation: Research on Flocculation and Filtration”, final report for Purac Ltd., Kidderminster , England , December 1995.

Tobiason, J.E., Male, J.W., Reckhow, D.A., Garvey, E., Hayes, M. and Wolfram, E., “Contaminant Transport Modeling and the Impact of Watershed Management Activities on Water Quality in Quabbin Reservoir”, final report to Metropolitan District Commission, May 1996.

Edzwald, J.K., Tobiason, J.E. and Walsh,C., “High Rate Dissolved Air Flotation Treatment Technology, Pilot Plant Study Report, Part 1: Newport News , Virginia , USA ”, report to Purac Ltd. and Anglian Water Innovation, England , March 1998.

Bezbarua, B.K., Edzwald, J.K., Tobiason. J.E., Shelkova, E. and Levesque, B., “Coagulation Optimization for BHC Surface Water Supplies”, final report to BHC Company, Bridgeport, CT, April, 1998.

Tobiason, J.E., Garvey, E., Long, S.C., Male, J.W., Reckhow, D.A., Cheek, K. and Spieles, K, “Contaminant Transport Modeling and Water Quality in Quabbin Reservoir – Phase II”, final report to Metropolitan District Commission, August 1998.

Edzwald, J.K., Tobiason, J.E. and Maggi, L.J., “High Rate Dissolved Air Flotation Treatment Technology (DAFRapide ™ ), Pilot Plant Study Report, Part 2: Bridgeport , CT , USA ”, report to Purac Ltd. and Anglian Water Innovation, England , November 1998.

Reckhow, D.A, Tobiason, J.E., and Edzwald, J.K., “Evaluation of Organic Matter in the MWRA Drinking Water Distribution System”, Final Report prepared for Camp Dresser & McKee,Inc and the Massachusetts Water Resources Authority, July 1999.

McClelan, J.C ., Reckhow, D.A., Tobiason, J.E. and Edzwald, J.K., “RWA/UMass DBP Kinetics/Distribution System Modeling Study, 1996-1999, Final Summary Report”, prepared for the South central Connecticut Regional Water Authority, New Haven, CT, USA, April 2000.

Garvey, E.A., Tobiason, J.E., Reckhow, D.A. and Edzwald, J.K, “Natural Organic Matter Fate and Transport in Quabbin Reservoir”, final report to Metropolitan District Commission, August 2001.

Edzwald, J.K., Tobiason, J.E., Kelley, M.B., Kaminski, G.S., Dunn, H.J. and Galant, P.B., “Impacts of Filter Backwash Recycle on Clarification and Filtration”, AWWARF and AWWA, Denver, CO, 287 pp., 2001.

Tobiason, J.E., Ahlfeld, D.P., Roberts, M. and Garvey, E.A., “Water Quality in MDC Reservoirs Project 1: Quabbin Reservoir Modeling”, final report to Metropolitan District Commission, January 2002.

Tobiason, J.E., Ahlfeld, D.P., Joaquin, A. and Mas, D., “Water Quality in MDC Reservoirs Project 1: Wachusett Reservoir Water Quality Modeling”, final report to Metropolitan District Commission, January 2002.

Ahlfeld, D.P., Tobiason, J.E., Kennedy, M. and Pease, R., “Water Quality in MDC Reservoirs:2001-2003, Project 1: Wachusett Reservoir Water Quality Modeling”, final report to the MA Department of Conservation and Recreation, Division of Water Supply Protection, August 2003.