David Philip Ahlfeld

Department of Civil and Environmental Engineering

University of Massachusetts Amherst, Massachusetts 01003

Phone: 413-545-2681 FAX: 413-545-2202

email: ahlfeld@ecs.umass.edu

Employment Record

Professor, Department of Civil and Environmental Engineering, University of Massachusetts, September 2004 to present. Associate Professor, Department of Civil and Environmental Engineering, University of Massachusetts, January 1998 to August 2004. Associate Professor, Department of Civil and Environmental Engineering, University of Connecticut, September 1994 to January 1998. Assistant Professor, Department of Civil Engineering, University of Connecticut, January 1988 to August 1994. Lecturer, Department of Civil Engineering and Operations Research, Princeton University, Spring semester 1987 and Spring semester 1988

Education

Ph.D. in Civil Engineering, 1987, Princeton University M.A. in Civil Engineering, 1985, Princeton University B.S. in Environmental Resources Engineering, 1983, Humboldt State University, Arcata, California.

Professional Engineer Registration: Connecticut #20058

Publications Refereed Publications D.P. Ahlfeld and Y. Hoque, “Impact of Simulation Model Solver Performance on Groundwater Management Problems”, Ground Water, Vol 46, no. 5 September-October 2008, pgs 716-726. D.P. Ahlfeld and G. Baro-Montes, “Solving Unconfined Groundwater Flow Management Problems with Successive Linear Programming”, Journal of Water Resources Planning and Management, Vol. 134, No. 5, September 1, 2008, pgs 404-412. David Pulido-Velazquez, David Ahlfeld, Joaquin Andreu, Andres Sahuquillo, “Reducing the computational cost of unconfined groundwater flow in conjunctive-use models at basin scale assuming linear behaviour: The case of Adra-Campo de Dalias”, Journal of Hydrology Volume 353, Issues 1-2, , 20 May 2008, Pages 159-174. D.M.L. Mas and D.P. Ahlfeld, “"Comparing artificial neural networks and regression models for predicting fecal coliform concentrations." Hydrologic Sciences Journal, August 2007, vol. 52, no. 4, pp. 713-731.

Russell Adams, David Ahlfeld, and Ashmita Sengupta, "Investigating the Potential for Ongoing Pollution from an Abandoned Pyrite Mine", Mine Water and the Environment (2007) 26: 2-13 D.W. Ostendorf, E.S. Hinlein, D.P. Ahlfeld and J.T. DeJong, “Calibrated models of deicing agent solids, pavement texture, and specific conductivity of highway runoff”, Journal of Environmental Engineering, December 2006, Vol. 132(12), pgs 1562-1571. M.G. Kennedy, D.P. Ahlfeld, D.P. Schmidt, J.E. Tobiason, “Three Dimensional Modeling for Estimation of Hydraulic Retention Time in a Reservoir”, Journal of Environmental Engineering, September 2006, Vol 132 (9), pgs 976-984. D.P. Ahlfeld, “Nonlinear Response of Streamflow to Groundwater Pumping For A Hydrologic Streamflow Model”, Advances in Water Resources, 2004, Vol 27(4), pgs 349-360. D.P. Ahlfeld and M. Minihane, “Storm Flow from First Flush Precipitation in Stormwater Design”, Journal of Irrigation and Drainage, July/August 2004, 130(4), pp 269-276. D. P. Ahlfeld, A. Joaquin, J.E. Tobiason and D. Mas, “Case Study: Impact of Reservoir Stratification on Interflow Travel Time”, Journal of Hydraulic Engineering, December 2003, Vol 129, No. 12, pp. 966-975. Barlow, P.M., D.P. Ahlfeld, and D.C. Dickerman, “Conjunctive-Management Models for Sustained Yield of Stream-Aquifer Systems”, Journal of Water Resources Planning and Management, January-February 2003, Vol. 129, No. 1, pgs 35-48. Mulligan, A. E., and D. P. Ahlfeld, “A new interior point boundary projection method for nonlinear optimization problems”, Operations Research, July-August 2002, Vol. 50, No. 4. R.A. Marryott, G.P. Sabadell, D.P. Ahlfeld, R.H. Harris, G.F. Pinder, “Allocating Remedial Costs at Superfund Sites with Co-Mingled Ground Water Contaminant Plumes”, Environmental Forensics, Vol. 1, No. 1, March 2000, pgs 47-54. Karatzas, G.P., G.F. Pinder and D.P. Ahlfeld, "Computer-Facilitated Groundwater Remediation Design",

Technology: A Journal of Science Serving Legistative, Regulatory, and Judicial Systems (Formely Journal of the

Franklin Institute), Vol.6, pp. 453-473, 1999. A.E. Mulligan and D.P. Ahlfeld, “Advective Control of Contaminant Plumes: Model Development and Comparison to Hydraulic Control”, Water Resources Research, Vol. 35, No. 8, August 1999, pgs 2285-2295. R.G. Riefler, B.F. Smets and D.P. Ahlfeld, “A Respirometric Assay for Biofilm Kinetics Estimation: Parameter Identifiability and Retrievability”, Biotechnology and Bioengineering, Vol. 57, pgs 35-45, 1998. D.P. Ahlfeld, Antigoni Zafirakou, R. Guy Riefler, “Solution of the groundwater transport management problem by sequential relaxation”, Advances In Water Resources Vol. 21, No. 7, 1998, pgs 591-604. D.P. Ahlfeld, "Interpretation of the Dual Program for Optimal Groundwater Hydraulic Control", Journal of the American Water Resources Association, Vol 34, No. 1, February, 1998.

D.P. Ahlfeld and M.P. Sprong, “Presence of Non-Convexity in the Groundwater Concentration Response Function”, ASCE, Journal of Water Resources Planning and Management, Vol 124, No. 1, Jan/Feb 1998, pgs 8-14. R.G. Riefler and D.P. Ahlfeld, “ The Impact of Numerical Precision on the Solution of Confined and Unconfined Optimal Hydraulic Control Problems”, Hazardous Waste and Hazardous Materials, Vol 13, No. 2, 1996, pgs 167-176.

D.P. Ahlfeld and E.H. Hill, III, " The Sensitivity of Remedial Strategies to Design Criteria", Groundwater, Vol. 34, No. 2, March-April 1996, pgs 341-348. C.S. Sawyer, D.P. Ahlfeld, and A.J. King, "Groundwater Remediation Design Using a Three-Dimensional Simulation Model and Mixed-Integer Programming", Water Resources Research, May, 1995, pgs 1373-1385. D.P. Ahlfeld, R.H. Page and G.F. Pinder, "Optimal Groundwater Remediation Methods Applied to a Superfund Site: From Formulation to Implementation", Ground Water, Vol. 33, No. 1, January-February 1995, pgs 58-71. D.P. Ahlfeld, A. Dahmani, W. Ji, "A Conceptual Model of Field Behavior of Air Sparging and Its Implications for Application", Ground Water Monitoring and Remediation, Vol. 14, No. 4, 1994, pgs 132-139. D.P. Ahlfeld and M.S. Islam, "Estimating the Probability of Exceeding Groundwater Quality Standards", Water Resources Bulletin, Vol. 30, No. 4, August 1994, pgs 623-629. W. Wang and D.P. Ahlfeld, "Optimal Groundwater Remediation with Well Location as a Decision Variable: Model Development", Water Resources Research, Vol. 30, No. 5, May 1994, pps 1605-1618. D.P. Ahlfeld and M. Heidari, "Applications of Optimal Hydraulic Control to Groundwater Systems", ASCE, Journal of Water Resources Planning and Management, Vol. 120, No. 3, May/June, 1994, pps 350-365. W. Ji, A. Dahmani, D.P. Ahlfeld, J.D. Lin, E. Hill, "Laboratory Study of Air Sparging: Air Flow Visualization", Ground Water Monitoring and Remediation, Vol. 13, No. 4, 1993, pgs 115-126. M.A. Dahmani, D.P. Ahlfeld, W. Ji, and M. Farrell, "Air Sparging Laboratory Study", refereed technical note in Proc. of 2nd Intl. Symposium on In-situ and Onsite Bioreclamation, ed. R. Hinchee, San Diego, CA, April, 1993. D.P. Ahlfeld and G.F. Pinder, "A Fast and Accurate Method for Solving Subsurface Contaminant Transport Problems with a Single Uncertain Parameter", Advances in Water Resources, Vol 15, No. 2, 1992, pgs 143-149. T. Tucciarelli and D.P. Ahlfeld, "A New Formulation for Transmissivity Estimation with Improved Global Convergence Properties", Water Resources Research, Vol. 27, No. 2, February, 1991, pgs 243-251. D.P. Ahlfeld and C.S. Sawyer, "Well Location in Capture Zone Design Using Simulation and Optimization Techniques", Journal of Groundwater, Vol 28, No. 4, July-August 1990, pgs 507-513. D.P. Ahlfeld, "Two-Stage Ground-Water Remediation Design", ASCE Journal of Water Resources Planning and Management, Vol.116, No. 4, July/August 1990, 517-529. D.P. Ahlfeld, J.M. Mulvey and G.F. Pinder, "Contaminated Groundwater Remediation Design Using Simulation, Optimization, and Sensitivity Theory: 1, Model Development", Water Resources Research, Vol 24(3), March 1988, pgs. 431-442. D.P. Ahlfeld, J.M. Mulvey, G.F. Pinder and E.F. Wood, "Contaminated Groundwater Remediation Design Using Simulation, Optimization, and Sensitivity Theory: 2, Analysis of Field Site”, Water Resources Research, Vol 24(3), March 1988, pgs. 443-452. D.P. Ahlfeld, G.F. Pinder and J.M. Mulvey, "Combining Physical Containment with Optimal Withdrawal for Contaminated Groundwater Remediation", Advances in Water Resources, Vol. 10, No. 4, December 1987, pgs 200-204.

D.P. Ahlfeld, R.S. Dembo, J.M. Mulvey and S.A. Zenios, "Nonlinear Programming on Generalized Networks", Transactions on Mathematical Software of the ACM, Vol. 13, No. 4, 1987, pgs 352-367. D.P. Ahlfeld and J.M. Mulvey, "Optimal Groundwater Quality Restoration: An Overview", Strategic Planning in Energy and Natural Resources, B. Lev, J. Bloom, A. Gleit, F. Murphy, and C. Shoemaker (eds.) North Holland Publ. Amsterdam, 1987, pgs 121-135. D.P. Ahlfeld, J.M. Mulvey and G.F. Pinder, "Designing Optimal Strategies for Contaminated Groundwater Remediation", Advances in Water Resources, Vol. 9, No. 2, June 1986, pgs 77-84. Books and Chapters in Books Ergas, S.J., Harrison, J., Bloom, J., Forloney, K., Ahlfeld, D.P., Nüsslein, K., Yuretich, R.F., 2005, Natural Attenuation of Acid Mine Drainage by Acidophilic and Acidotolerant Fe(III)- and Sulfate-Reducing Bacteria, in Innovative Approaches for the Remediation of Subsurface-Contaminated Hazardous Waste Sites: Bridging Flask and Field Studies, C. Clark II and A. Lindner (eds.), American Chemical Society Symposium Series, American Chemical Society, Washington DC (referred).

D.P. Ahlfeld, “Quantitative Analysis of Groundwater Systems”, chapter in revised ASCE Groundwater Management Manual, (in press). D.P. Ahlfeld and W.R. Dripps, “Groundwater Issues”, 2003, chapter in Water Resource Issues, Challenges and Opportunities, editors, R. Lawford, H. Hartmann, and D. Fort, American Geophysical Union (refereed). Mulligan, A. E., and D. P. Ahlfeld, 2001, “Optimal plume capture design in unconfined aquifers”, J. Smith and S. Burns, eds., Chapter in Physicochemical groundwater remediation, Kluwer Academic, p. 23-44 (refereed). Ahlfeld, D. P., and A. E. Mulligan, 2000, "Optimal Management of Flow in Groundwater Systems", Academic Press, San Diego, CA. M.A. Dahmani, D.P. Ahlfeld, W. Ji, and M. Farrell, "Air Sparging Laboratory Study", in Air Sparging for Site Remediation, ed. R. Hinchee, Lewis Publishers, 1994 (refereed). M.A. Dahmani, K. Forster, D.P. Ahlfeld, G.E. Hoag, R.J. Carley, J. Chen, "Measurement of Motor Fuel Contaminated Soil Leachate", Chapter 9 in Hydrocarbon Contaminated Soils, eds R.T. Kostecki and E.J. Calabrese, Lewis Publishers, 1993. Popular Publications Paul M. Barlow and Gregory E. Granato, and David P. Ahlfeld, “Simulation-Optimization Modeling to Assist Conjunctive Management of Stream-Aquifer Systems of Rhode Island”, Groundwater News and Views, Newsletter of Assoc. of Groundwater Scientists and Engineers, Volume 4/No. 2,November 2007. D.P. Ahlfeld, “Modeling for Groundwater Flow Management Using MODOFC”, International Groundwater Modeling Center Newsletter, Colorado School of Mines, Vol. 21, No. 1., Spring 2003. G.F. Pinder, D.P. Ahlfeld, and R.H. Page, "Conflict Resolution in Groundwater Remediation using Management Models: A Case Study", Civil Engineering, Vol. 65, No. 3, March 1995, pgs. 59-61. Conference Proceedings M. A. Laverty, D. P. Ahlfeld, J. E. Tobiason, “Three-dimensional numerical modeling of hydrodynamics and transport in the Wachusett Reservoir”, Proc. Of World Environmental and Water Resources Congress, ASCE, Providence, RI, May 16-20, 2010

C. L. Stauber, J.E. Tobiason, B. Sojkowski and D.P. Ahlfeld, “Two-Dimensional Modeling of Contaminant Spills to a Drinking Water Supply Reservoir”, Proc. Of World Environmental and Water Resources Congress, ASCE, Providence, RI, May 16-20, 2010 Kelcy Adamec, Richard N. Palmer, Austin Polebitski, David Ahlfeld, Scott Steinschneider, Brian Pitta, Casey Brown, “Evaluation of Climate Change Impacts to Reservoir Operations within the Connecticut River Basin”, Proc. Of World Environmental and Water Resources Congress, ASCE, Providence, RI, May 16-20, 2010 D.P. Ahlfeld and G. Baro-Montes, “Alternative Groundwater Management Algorithms for a Large-Scale Transient Problem”, Proc. of the World Environmental and Water Resources Congress, American Society of Civil Engineers, Tampa, FL, May 15-19, 2007. Ahlfeld, D.P. (2006), Comparison of Climate Model Precipitation Forecasts with North American Observations, in Proceedings of the XVI International Conference on Computational Methods in Water Resources, edited by Philip J. Binning Peter Engesgaard, Helge Dahle, George F. Pinder and William G. Gray. Copenhagen, Denmark, June, 2006. P.M. Barlow, D.P. Ahlfeld and G.E. Granato, “A Simulation-Optimization Model for Evaluation of Ground-Water Development Options Constrained by Minimum Streamflow Requirements and Water-Supply Demands”, Proc. of MODFLOW and More 2006: Managing Ground Water Systems, May 2006, Golden, Colorado. D.R. Buttrick, J.E. Tobiason and D.P. Ahlfeld, “Modeling as an Operational Tool for an Unfiltered Surface Water Supply”, Proc. Of Amer. Water Works Assoc. ACE, June 2005, San Francisco, CA. D.P. Ahlfeld, “Algorithm for Groundwater Management Formulations with Head Dependent Boundary Conditions”, Proc. of XV International Conference on Computational Methods in Water Resources, June, 2004, Chapel Hill, NC., Editors, C.T. Miller, M.W. Farthing, W.G. Gray, G.F. Pinder, pgs 1193-1200. D.P. Ahlfeld, “Solving Mixed-Binary Optimization Problems for Groundwater Management”, Proc. of the World Water and Environmental Resources Congress, American Society of Civil Engineers, Philadelphia, PA, June 23-26, 2003. D.P. Ahlfeld and M.R. Minihane, “Numerical Issues in Management of Stream/Aquifer Interaction", Proc. of the XIV International Conference on Computational Methods in Water Resources, Delft, The Netherlands, Editors, S.M. Hassanizadeh, R.J. Schotting, W.G. Gray, G.F. Pinder, June, 2002, pgs 1471-1478. M.R. Minihane and D.P. Ahlfeld, “Application of Management Models to Water Supply with Stream/Aquifer Interactions”, Proc. 2002 Conference on Water Resouces Planning and Management, American Society of Civil Engineers, Roanoke, VA, May 19-22, 2002. G.F. Pinder, G.P. Karatzas and D.P. Ahlfeld, "Groundwater Flow and Transport Models: A Field Application", Proc. of Scope Workshop on Groundwater Contamination in China held August 1995, Editors, R. Fu, Y. Qian, C.A. Shoemaker, pgs 59-63, published March, 2000. D.P. Ahlfeld, “Flow and Transport Optimization for Pump and Treat Systems”, Proc. of Subsurface Remediation: Improving Long-Term Monitoring and Remedial Systems Performance”, EPA/542/B-00/002, April 2000. David P. Ahlfeld, R. Guy Riefler and Ann E. Mulligan, “A New Code for MODFLOW-Coupled Groundwater Management of Unconfined Aquifers”, Proc. of MODFLOW 98, Golden, CO, October, 1998, Editors, E. Poeter, C. Zheng and M. Hill, pgs 431-438.

A. Mulligan and D.P. Ahlfeld, "Optimal Plume Control Based on Advective Transport", Proc. of the XII International Conference on Computational Methods in Water Resources, Editors, V.N. Burganos, G.P. Karatzas, A.C. Payatakes, C.A. Brebbia, W.G. Gray, G.F. Pinder, June, 1998, pgs 83-90. L.M. Deschaine, M.J. Ades, D.P. Ahlfeld, and D. O”™Brien, “An optimization algorithm to minimize the life cycle cost of implementing an aquifer remediation project - theory and case example”, Proc. of Society for Computer Simulation International Multi-Conference, Boston, MA, April 5-8, 1998. D.E. Speed and D.P. Ahlfeld, “Diagnosis of Structural Identifiability in Groundwater Flow and Solute Transport Equations”, Proc. of ModelCARE 96: Intl. Conf. on Calibration and Reliability in Groundwater Modeling, Golden, Colorado, September 24-26, 1996. D.P. Ahlfeld and R. G. Riefler, “The Impact of Numerical Precision on Optimal Groundwater Hydraulic Control”, Proc. of ASCE North America Water and Environment Congress “˜96, Anaheim, CA, June 22-28, 1996. D.P. Ahlfeld and M. Palumbo, “Investigating the Non-Convexity of the Groundwater Quality Management Response Function”, Proc. of ASCE North America Water and Environment Congress “˜96, Anaheim, CA, June 22-28, 1996. G. Karatzas, G.F. Pinder, D.P. Ahlfeld, “Optimal Design of Solutions to Groundwater Contamination Problems”, Proc. of the 3rd Intl. Conf. on Water Pollution Modeling, Measuring and Prediction, Porto Carras, Greece, May 1995. J.V. Dannenhoffer and D.P. Ahlfeld, "Reliability Under Uncertainty of Optimal Hydraulic Control Solutions", Proc. of 22nd Annual ASCE Water Resources Planning and Management Division Conference, May 7-11, 1995, Boston, Mass. D.P. Ahlfeld and A. Zafirakou, "An Algorithm for Approximate Solution of the Groundwater Contaminant Remediation Problem", Proc. of the X International Conference on Computational Methods in Water Resources, Editors, A. Peters, G. Wittum, B. Herrling, U. Meissner, C.A. Brebbia, W.G. Gray, G.F. Pinder, July, 1994, pgs 833-840. D.P. Ahlfeld and J.D. Dombek, "Evaluating Sensitivity of Hydraulic Control Optimization Models", Proc. of 21st Annual ASCE Water Resources Planning and Management Division Conference, May 23-26, 1994, Denver, Colo. D.P. Ahlfeld, "Fluid Flow Mechanisms that Govern Air Sparging Effectiveness", abstract for National Ground Water Association Conference on Chlorinated Volatile Organic Compounds in Ground Water, Journal of Ground Water, Sept./Oct. 1993. D.P. Ahlfeld, "Optimizing Remedial Strategies with Modeling: A Case Study", Proc. of the New England Environmental Expo, Boston, Mass., 1993. M.A. Dahmani, K. Forster, D.P. Ahlfeld, G.E. Hoag, R.J. Carley, "Evaluation of TCLP for Gasoline-Contaminated Soils", Proc. of Petroleum Hydrocarbons and Organic Chemicals in Groundwater: Prevention, Detection and Restoration, National Ground Water Assoc., Nov. 4-6, 1992, Houston, Texas. C. S. Sawyer and D.P. Ahlfeld, "A Mixed-Integer Model for Minimum Cost of Remediating a Multi-Layer Aquifer", Proc. of the IX International Conference on Computational Methods in Water Resources, Editors T.F. Russell, R.E. Ewing, C.A. Brebbia, W.G. Gray and G.F. Pinder, Denver, Colo, June 1992, pgs 353-360. D.P. Ahlfeld and W. Wang, "Optimal Groundwater Management Without Fixed Well Points", Proc. of the IX International Conference on Computational Methods in Water Resources, Editors T.F. Russell, R.E. Ewing, C.A. Brebbia, W.G. Gray and G.F. Pinder, Denver, Colo, June 1992, pgs 345-352.

D.P. Ahlfeld, "Reliability of Model Predictions for Pump and Treat Strategies", Proc. of the 18th Annual Conference on Water Resources Planning and Management, ASCE, Editor, J.L. Anderson, May 1991, pgs 847-851. D.P. Ahlfeld and Z. Hyder, "The Impact of Parameter Uncertainty on Delineation of Aquifer Protection Areas: Variability in Hydraulic Conductivity", Proceedings of the FOCUS Conf. of the Assoc. of Groundwater Scientists and Engineers, Springfield, MA, October 1990, pgs 23-30. "Determining the Relationship Between Groundwater Remediation Cost and Effectiveness", Proc. of the VIII Inter. Conf. on Computational Methods in Water Resources, Venice, Italy, June 1990. Editors G. Gambolati, A. Rinaldo, C.A. Brebbia, W.G. Gray and G.F. Pinder, pgs 277-282. D.P. Ahlfeld and C. Sawyer, "Capture Zone Design Using Simulation Models and Optimization Techniques", Proc. of Focus Conf. of the Assoc. of Groundwater Scientists and Engineers, Stamford, CT, September 1988, pgs 313-323. D.P. Ahlfeld and G.F. Pinder, "Solving Stochastic Groundwater Problems Using Sensitivity Theory and Hermite Interpolating Polynomials", Proc. of the VII Inter. Conf. on Computational Methods in Water Resources, MIT, 1988, Editors M.A. Celia, L.A. Ferrand, C.A. Brebbia, W.G. Gray and G.F. Pinder, pgs 179-184. D.P. Ahlfeld, J.M. Mulvey and G.F. Pinder, "Designing Optimal Strategies for Contaminated Groundwater Remediation", Proc. of the VI Inter. Conf. on Finite Elements in Water Resources, Lisbon, Portugal, 1986, Editors A.Sa da Costa, A. Melo Baptista, W.G. Gray, C.A. Brebbia and G.F. Pinder, pgs 205-213. Technical Reports Ahlfeld, D.P., Baker, K.M., and Barlow, P.M., 2009, GWM-2005--A Groundwater-Management Process for MODFLOW-2005 with Local Grid Refinement (LGR) capability: U.S. Geological Survey Techniques and Methods 6-A33, 65 p (refereed). Ahlfeld, D.P., Barlow, P.M., and Mulligan, A.E., 2005, GWM-A ground-water management process for the U.S. Geological Survey modular ground-water model (MODFLOW-2000): U.S. Geological Survey Open-File Report 2005-1072, 124 p (refereed).

D.P. Ahlfeld, J.E. Tobiason, M. Kennedy, R. Pease, "Water Quality in MDC Reservoirs 2001-2003, Project 1: Wachusett Reservoir Water Quality Modeling", Dept. of Civil and Environmental Engineering, University of Massachusetts, August, 2003. J.E. Tobiason, D.P. Ahlfeld, M. Roberts, E. Garvey, "Water Quality in MDC Reservoirs, Project 1: Quabbin Reservoir Modeling", Dept. of Civil and Environmental Engineering, University of Massachusetts, January, 2002. J.E. Tobiason, D.P. Ahlfeld, A. Joaquin, D. Mas, "Water Quality in MDC Reservoirs, Project 1: Wachusett Reservoir Water Quality Modeling", Dept. of Civil and Environmental Engineering, University of Massachusetts, January, 2002. E. Winkler, D.P. Ahlfeld, G. Askar, and M. Minihane, “Development of a Rational Basis for Designing Recharging Stormwater Control Structures and Flow and Volume Design Criteria” , Massachusetts Department of Environmental Protection, Project 99-06/319, April 2001. J.E. Tobiason, D.P. Ahlfeld, D. Mas, A. Joaquin, E. Garvey, L. Kennedy, "Progress Report: Water Quality in MDC Reservoirs, Project 1: Reservoir Water Quality Modeling", Dept. of Civil and Environmental Engineering, University of Massachusetts, August, 2000.

E.L. Pesce, D.P. Ahlfeld, C. Zheng, R. Peralta, "Demonstration of the Optimization of Extraction-Treatment-Reinjection (ETR) Design for the CS-10 Groundwater Contaminant Plume", Environmental Technology Center, Massachusetts Military Reservation, Cape Cod, MA, March, 2000. Mulligan, A. E., and D. P. Ahlfeld, 1998, “An interior point boundary projection method for nonlinear groundwater optimization with zero-derivative constraints”, Research Center for Groundwater Remediation Design, University of Vermont, RCGRD Pub. No. 98-02. Vladimir P. Stepanenko and D.P. Ahlfeld, “Experiments with the Dense Jacobian Form of the Sequential Relaxation Method for Solving Groundwater Transport Remediation Problems”, RCGRD Report #97-1 University of Connecticut, Storrs, CT, 1997. D.P. Ahlfeld, E.H. Hill, "Reliability of Optimal Remedial Strategies with Variability of Conductivity", Report CEE-97-1, Dept. of Civil and Environmental Engineering, University of Connecticut, 1997. D.P. Ahlfeld and R.G. Riefler, "Documentation for MODOFC: A Program for Solving Optimal Flow Control Problems Based on MODFLOW Simulation", Report RCGRD#96-20, University of Connecticut, Storrs, CT, 1996. D.P. Ahlfeld, E.H. Hill, J. Dombek, "VCON: A program for groundwater flow and contaminant transport simulation combined with optimal remedial design, User's Manual", Report ERI 94-03, Environmental Research Institute, University of Connecticut, 1994, 18 pgs. D.P. Ahlfeld, A. Dahmani, M. Farrell and W. Ji, "Field Measurements of Air Sparging of Chlorinated Hydrocarbon Contamination", Report ERI 94-01, Environmental Research Institute, University of Connecticut, 1994, 47 pgs. D.P. Ahlfeld, K. Forster, A. Dahmani, G. Hoag, "Relating Soil Leaching Measurements to Groundwater Contaminant Infiltration", Report ERI 93-07, Environmental Research Institute, University of Connecticut, Storrs, CT, 1993, 22 pgs. D. P. Ahlfeld and M. S. Islam, “Development of a Screening Method for Prioritizing the Remediation of Groundwater Contamination Sites", Report JHR92-208, Dept. of Civil Engineering, University of Connecticut, March, 1992, 164 pgs. D.P. Ahlfeld, M. Farrell, S. Islam, W. Ji, "Interim Report of Bench-Scale Sparging Analysis", Environmental Research Institute, University of Connecticut, November, 1991, 28 pgs. D. P. Ahlfeld, K. Forster, A. Dahmani, R. Carley, G. Hoag, "Measurement of Petroleum Contaminated Soils and Environmental Mobility of Contaminants, Phase I", Environmental Research Institute, University of Connecticut, July 1991, 63 pgs. G. Hoag, D.P. Ahlfeld, A. Dahmani and D. Strother, "Monitoring and Remediation of Gasoline Storage Facilities: Aqueous Leachability of Gasoline in a Connecticut Sand", Report JHR 91-200, Dept. of Civil Engineering, University of Connecticut, May, 1991, 49 pgs. D.P. Ahlfeld and Z. Hyder, "A Survey and Statistical Analysis of Contaminant Transport Characteristics of Connecticut's Stratified Drift Aquifers", Report ERI-90-5, Environmental Research Institute, University of Connecticut, August 1990, . D.P. Ahlfeld and G.F. Pinder, "Approximate Solution of Distributed Parameter Stochastic Groundwater Problems", Report ERI-89-8, Environmental Research Institute, University of Connecticut, June 1989. D.P. Ahlfeld and G.F. Pinder, "The Relationship Between Remediation Cost and Regulatory Requirements", Report ERI-89-7, Environmental Research Institute, University of Connecticut, April 1989, 19 pgs.

D.P. Ahlfeld and G.F. Pinder, "Optimal Contaminated Groundwater Remediation Under Transient Flow Conditions", Report ERI-88-4, Environmental Research Institute, University of Connecticut, June 1988, 14 pgs. D.P. Ahlfeld and G.F. Pinder, "Hermitian Interpolation of the Convective-Dispersive Equation as a Means of Spatial Location Optimization", Report ERI-88-2, Environmental Research Institute, University of Connecticut, April 1988, 7 pgs. "A Groundwater Monitoring Network Design Algorithm", Report 87-WR-4, Water Resources Program, Dept. of Civil Engineering, Princeton University, July 1987, 11 pgs. "Comparison of the Princeton Transport Code with Numerical Solutions: Groundwater Flow", Report 87-WR-3, Water Resources Program, Dept. of Civil Engineering, Princeton University, May 1987, 14 pgs. "Comparison of the Princeton Transport Code with Analytical Solutions: Solute Transport", Report 87-WR-2, Water Resources Program, Dept. of Civil Engineering, Princeton University, April 1987, 9 pgs. "GW2SEN - A Program for Groundwater Transport Simulation and Sensitivity Analysis", Report 87-WR-1, Water Resources Program, Dept. of Civil Engineering, Princeton University, March 1987. G.F. Pinder, D.K. Babu, A. Niemi and D.P. Ahlfeld, "Chemical Transport by Three Dimensional Groundwater Flows", Report WR-84-3, Water Resources Program, Dept. of Civil Engineering, Princeton University, Revised January 1987, 67 pgs. D.P. Ahlfeld, J.M. Mulvey and G.F. Pinder, "A New Algorithm for Optimal Groundwater Clean-up Using Analytical Derivatives", Report EES-86-11, Engineering Management Systems Program, Dept. of Civil Engineering, Princeton University, April 1986, 17 pgs. D.P. Ahlfeld and G.F. Pinder, "Groundwater Management Strategies Using Nonlinear Programming", Report 84-WR-2, Water Resources Program, Dept. of Civil Engineering, Princeton University, February 1984, 9 pgs. "Development of a Stochastic Hourly Temperature Data Generating Model", Senior Thesis, Environmental Resources Engineering Department, Humboldt State University, 1983. "User Guide and Documentation for the Humboldt Building Simulation Program", Humboldt State University, 1982.

Teaching Courses Taught (semester and year) Dept. of Civil and Environmental Engineering, University of Massachusetts Undergraduate CEE270 - Civil Engineering Systems Analysis, S98, S99, F99, S00, F00, S01, F01, S02, F02, S03, S04, F05, S06, S07, S08 CEE250 – Thermodynamics, Heat Transfer and Energy Systems, S08, S09, F09, S10 CEE462 - Water Resources Engineering, F98, F01, F02 CEE473 – Groundwater, F07, F08 CEE486 – Senior Design, F10 Graduate CEE560 - Hydrology, S99, F06, F07 CEE561 - Open Channel Flow, S00 CEE590N - Numerical Methods for Environmental and Water Resources Engineering, F98

CEE 660 - Subsurface Hydraulics, F03, F05 CEE 661 - Subsurface Pollution, S04, F06,F08 CEE 662 - Water Resources Systems Analysis, F00 CEE 670 – Transport Processes, F10 Dept. of Civil and Environmental Engineering, University of Connecticut. Undergraduate CE263 - Introduction to Environmental Engineering, F95, S97 CE297 - Fluid Mechanics, F91, F92, F93, F95, F96, F97 CE251 - Analysis of Civil Engineering Systems, F89 CE265 - Hydraulics Engineering, S90, S91, S92, S93, S94, S95 Graduate CE410 - Site Assessment and Remediation, F91, F92, F93 CE406 - Groundwater Flow Analysis, F88, F90, S92, S94, S96, F97 CE407 - Subsurface Contaminant Transport, S89, S91, S93, S95 CE327 - Numerical Methods for Civil Engineers, F90, F94 CE320 - Numerical Methods for Environmental and Water Resources Engineering, F96 Dept. of Civil Engineering and Operations Research, Princeton University.

Graduate CE387 - Optimization Methods for Water Resources Management, S87 CE381 - Numerical Methods, S88 Graduate Students Completed Ashmita Sengupta, PhD, 2010, “Evaluation and Use of Parsimonious Reactive Solute Transport Models for Prediction of Contaminant Behavior at an Acid Mind Drainage Site” Diane Mas, Ph.D., 2005, “Examination of the Use of Artificial Neural Networks to Model Fecal Indicator Organism Concentrations in Urbanizing Watersheds” Ann Mulligan, Ph.D., 1999, "Advective Control of Groundwater Contaminant Plumes Using Simulation and Optimization" Paul Barlow, Ph.D., 1998, “Evaluation of Optimal Management Strategies for Stream-Aquifer Systems in the Northeastern United States” David Speed, Ph.D., 1997, “Identifiability Criterion For Reactive Solution Transport Parameter Identification” Wei Ji, Ph.D., 1994, “Air Sparging: Experimental and Theoretical Analysis of Flow and Numerical Modeling of Mass Transfer” Wen Wang, Ph.D., 1993, "A New Formulation for Determining Optimal Well Location without Fixed Well Points in Groundwater Management" Charles Sawyer, Ph.D., 1992, "A Mixed-Integer Model for Three-Dimensional Groundwater Remediation Design" Mikaela Martin, M.S., 2009, “Minimizing Energy Use in Large Groundwater Supply Systems” Mary Serdakowski, M.S, 2008, “Alternate Models for Representing the Hydrodynamics of the Thomas Basin”

Kris Baker, M.S., 2008, “Extension of MF2005-GWM (Ground-Water Management Process) to Solve Management Formulations which Optimize Hydraulic Head and Solve Quadratic Programming Problems” Gemma Baro-Montes, M.S., 2007, “Groundwater Management Formulations to Control Subsidence in a Large Scale Transient Problem” Yamen Hoque, M.S., 2007, “The Use of Numerical Modeling Techniques to Optimize Groundwater Withdrawals and Minimize Streamflow Depletion” Ashmita Sengupta, M.S., 2005, “Hydrogeology of an Acid Mine Drainage Site” Aparna Vemuri, M.S., 2005, “Nonlinear Response of Head Dependent Boundary Conditions in MODFLOW” Pease, Rebecca, M.S., 2004,”Three-Dimensional Numerical Modeling of Hydrodynamics and Transport in a Thermally Stratified Reservoir” Matthew Kennedy, M.S., 2003, “Three-Dimensional Numerical Modeling of Hydrodynamics and Transport in a Reservoir” Michele Minihane, M.S. 2002, “Stream-Aquifer Interactions and a Water Supply Management Model” Alejandro Joaquin, M.S., 2001, “Modeling the Effect of Quabbin Transfers on Wachusett Reservoir Compositions” Gokhan Askar, M.S., 2000, "Factors Affecting Infiltration Basin Hydraulics" Joan Dannenhoffer, M.S., 1995, “The Effect of Spatial Variability of Hydraulic Conductivity on the Robustness of Optimal Hydraulic Control Pumping Strategies” Mary Palumbo, M.S., 1995, “Investigation of Nonconvexity of Simulated Groundwater Concentration Response Functions” Carolyn Verdon, M.S., 1995, “Measure of Robustness for a Linear Groundwater Optimization Problem” Edward Hill, M.S., 1994, “Sensitivity of Optimal Pumping Strategies to Aquifer Heterogeneity” Jon Dombek, M.S., 1994, “Sensitivity of Groundwater Optimization Solutions to Variation in Hydraulic Constraints” Antigoni Zafirakou, M.S., 1994, "An Algorithm for Approximate Solution of the Groundwater Contaminant Remediation Problem" Larry Deschaine, M.S. 1992, "Cost Minimization Evaluation for Groundwater Pump and Treat Design" M. Shafiqul Islam, M.S. 1992, “Development of a Screening Method for Prioritizing the Remediation of Groundwater Contamination Sites" Kathleen Forster, M.S. 1992, "Leachability of Gasoline Contaminated Soils" Guy Reifler, M.S., 1998, Non-Thesis Option Philip Forzley, M.S. 1997, Non-Thesis Option John Bergendahl, M.S. 1994, Non-Thesis Option David Lis, M.S. 1990, Non-Thesis Option Justin Peach, M.S. 1990, Non-Thesis Option

Undergraduates Supervised Elena Janice, Honors Project, 2007-08 Robert House, Honors Project, 2008-09 Current Graduate Students Mikaela Martin, Ph.D., expected 2012 Bryan Sojkowski, M.S., expected 2011 Kelcy Adamec, M.S., expected 2011 Keven Mulligan, M.S., expected 2012 Post-Doctoral Scholars Russell Adams, Post-Doc, August 2006 to October 2006. Diane Mas, Post-Doc, January 2006 to 2009 David Pulido-Velazquez, Post-Doc from University of Valencia, January 2006 to June 2006 Yi-Chang Ethan Lin, Post-Doc from Duke University, September 2004 to March 2006. Vladimir Stepanenko, Visiting Research Scientist, January 1995 to June 1996. Host for Visiting Faculty Dr. Stephan Fuchs, University of Karlsruhe, Germany, visited April 2001 to September 2001 Supervision of Student Activities Faculty Advisor, Students for Sustainable Engineering, 1999-2002 Faculty Advisor, Engineers Without Borders, UMass, 2004-2010

Research Support "Correlation Between Aquifer Statistics and Two Dimensional Model Dispersivities", University of Connecticut Research Foundation, June 1, 1989 to May 31, 1990, $6,921. (co P.I. with George Hoag) "Modeling and Remediation of Gasoline Storage Facilities", Connecticut Department of Transportation (JHRAC) , July 31, 1989 to July 1, 1990, $37,000. "Implications of Contaminant Transport on Well-Head Protection", U.S. Department of Interior, Connecticut Institute of Water Resources, Sept. 1, 1989 to May 31, 1990, $9,530. "Development of a Screening Model for Prioritizing the Remediation of Groundwater Contamination Sites", Connecticut Department of Transportation (JHRAC), June 1, 1990 to May 31, 1991, $22,956. "The Impact of Uncertainty and Variability of Hydraulic Properties on Aquifer Protection Area Delineation", U.S. Department of Interior, Connecticut Institute of Water Resources, Sept. 1, 1990 to August 31, 1991, $14,413.

"Optimal Well Location in Groundwater Management" National Science Foundation, Sept. 1, 1990 to February 28, 1993, $57,963. "A Mixed Integer Formulation for 3 Dimensional Groundwater Flow", IBM Corp., August 1, 1990 to August 1, 1991, $42,954. "Remedial Pumping Optimization Project", Environ Corporation, beginning June 1, 1991, $18,000. (co P.I. with George Hoag and Dominic Grasso) "Innovative Site Remediation for Hamilton Standard", May 1, 1991 to August 31, 1992, $197,320. (co P.I. with George Hoag) "Measurement of Petroleum Contaminated Soils and the Environmental Mobility of Contaminants, Phase I", American Petroleum Institute, November 1, 1990 to October 31, 1991, $98,860. (co P.I. with George Hoag) "Measurement of Petroleum Contaminated Soils and the Environmental Mobility of Contaminants, Phase II", American Petroleum Institute, November 1, 1991 to October 31, 1992, $104,800. (co P.I. with Dominic Grasso) "Investigation of Remediation Strategies for Flushing Cadmium Contaminated Soils", U.S. Dept. of Interior, Connecticut Institute of Water Resources, Sept. 1, 1992 to August 31, 1993. $16,739. "Development of a Practical Groundwater Remediation Design Tool", Dupont Corp., April 1, 1993 to March 31, 1994, $44,507. (co P.I. with J.D. Lin and M. Lefor) "Hydrodynamic and Transport Models of Coastal Waters for use in the Design and Management of Highway Structures", Connecticut Highway Planning and Research Program, July 1, 1993 to June 31, 1996, $248,000. "Optimal Remediation Design: Methodology and Software for Contaminated Aquifer", subcontract from the University of Vermont, July 1, 1993 to September 30, 1994, $85,000. "An Algorithm for Approximate Solution of the Groundwater Contaminant Remediation Problem", National Science Foundation, August 15, 1994 to July 31, 1996, $66,612. “Design of Optimal Characterization Networks”, University of Vermont subcontract through the U.S. Army Corps of Engineers, Jan. 1, 1995-June 30, 1996, $61,500. (co P.I. with G.F. Pinder and D. Dougherty), Gifts from Corporate Sources to Research Center for Groundwater Remediation Design consortium, Jan. 1, 1993 to present, approx. $600,000. D. Ahlfeld, “Groundwater Remediation Design”, University of Vermont, June 1998 - unlimited, $33,000. D. Ahlfeld, "Impact of Spatial Variability of Streambed Hydraulic Parameters", University of Massachusetts Faculty Research Grant, April 1, 1998 - March 31, 1999, $5000. E. Winkler and D. Ahlfeld, “Development of a Rational Basis for Designing Recharging Stormwater Control Structures and Flow and Volume Design Criteria”, MA Dept. of Environmental Protection, June 99 - August 00, $53,943. J. Tobiason, D. Ahlfeld, J. Edzwald, S. Long, D. Reckhow, “Water Quality in MDC Reservoirs”, Metropolitan District Commission, July 1, 1999 - June 30, 2001, $440,291. S. Long, D. Ahlfeld, "Development of Source-Specific Indicator Organisms for Drinking Water", American Water Works Association Research Foundation (AWWARF), September 1, 1999 - April 1, 2002,

$138,056. D. Ahlfeld, J. Tobiason, S. Long, P. Rees, D. Reckhow, “Water Quality in MDC Reservoirs: 2001-2003”, Metropolitan District Commission, July 1, 2001 - June 30, 2003, $462,849. D. Ahlfeld, “Groundwater Contamination Data Review”, Baron and Budd, October 13, 2000 - December 31, 2002, $11,523. D. Ahlfeld and D. Reckhow, “Greylock Center Water Quality Monitoring”, Massachusetts Dept. of Environmental Management”, May 1, 2001-June 30, 2006, $129,542. D. Ahlfeld, “Groundwater-Surface Water Interface”, U.S. Environmental Protection Agency (subcontract through the University of Connecticut), October 1, 2001 - September 30, 2002, $20,000. D. Ahlfeld, “Groundwater-Surface Water Interface”, U.S. Environmental Protection Agency (subcontract through the University of Connecticut), July 1, 2002 - June 30, 2007, $300,000. D. Ahlfeld, “Groundwater-Surface Water Interface II”, U.S. Environmental Protection Agency (subcontract through the University of Connecticut), July 1, 2003 - June 30, 2007, $270,000. D. Ahlfeld, “Groundwater-Surface Water Interface III”, U.S. Environmental Protection Agency (subcontract through the University of Connecticut), July 1, 2004 - June 30, 2007, $289,430. D. Ahlfeld, “Groundwater-Surface Water Interface IV”, U.S. Environmental Protection Agency (subcontract through the University of Connecticut), July 1, 2005 – June 30, 2007, $85,000. R.F. Yuretich, S.J. Ergas, K.R.L. Nuesslein, A. Feldman, D. Ahlfeld, “Biogeochemistry of FE(III) and sulfate reduction in extreme acidic environments”, National Science Foundation, January 1, 2003 - December 31, 2007, $1,587,615. Long, S., J. Tobiason, D. Ahlfeld, D. Reckhow, P. Rees, “Watershed Management and Drinking Water Supply Research Instrumentation”, National Science Foundation, January 1, 2004 - December 31, 2006, $450,049. D. Ahlfeld, J. Tobiason, S. Long, P. Rees, D. Reckhow, “Water Quality in Massachusetts Reservoirs: FY 2004”, Metropolitan District Commission, July 1, 2003 - June 30, 2004, $153,017. D. Ahlfeld, J. Tobiason, S. Long, P. Rees, D. Reckhow, “Water Quality in Massachusetts Reservoirs: FY 2004”, Metropolitan District Commission, July 1, 2003 - June 30, 2004, $153,017. S. Long, J. Tobiason, P. Rees, D. Reckhow, D. Ahlfeld, “Water Quality in Massachusetts Reservoirs: 2004-2006”, MA Dept. of Conservation and Recreation, July 1, 2004 – June 30, 2006, $464,378. D. Reckhow, J. Tobiason, P. Rees, D. Ahlfeld, “Water Quality in Massachusetts Reservoirs: 2006-2008”, MA Dept. of Conservation and Recreation, July 1, 2006 – June 30, 2008, $422,464. D. Ahlfeld, “Integration of the Ground Water Management (GWM) Process into MODFLOW-2005 and Expansion of GWM Capabilities”, US Geological Survey, Office of Groundwater, January 30, 2007-January 30, 2008, $15,000. D. Ahlfeld, “Expansion of GWM Capabilities to Include State Variables”, US Geological Survey, Office of Groundwater, January 30, 2008-January 30, 2009, $30,000. D. Ahlfeld, “Nowcasting Tools to Predict Bacterially – Induced Beach Closings at Boston Harbor Beaches”, Massachusetts Environmental Trust, 7/1/07-6/30/09, $30,735.

J. Tobiason, D. Ahlfeld, D. Reckhow, “Water Quality in Massachusetts Reservoirs: 2008-2010”, MA Dept. of Conservation and Recreation, July 1, 2008 – June 30, 2010, $249,560. D. Ahlfeld, “Expansion of GWM Capabilities to Include New Features”, US Geological Survey, Office of Groundwater, January 30, 2009-January 30, 2010, $35,000. R. Palmer, C. Brown, D. Ahlfeld, “Evaluating Reservoir Operations and the Impacts of Climate Change in the Connecticut River Basin”, The Nature Conservancy, April 1, 2009-December 31, 2011, $352,134. J. Tobiason, D. Ahlfeld, M-H. Park, D. Reckhow, “Water Quality in Massachusetts Reservoirs: 20010-2012”, MA Dept. of Conservation and Recreation, July 1, 2010 – June 30, 2012, $249,897. D. Ahlfeld, “Expansion of GWM Capabilities to Include Multi-Node Wells with the MNW2 Package”, US Geological Survey, Office of Groundwater, January 30, 2010-January 30, 2011, $30,000. D. Ahlfeld, R. Palmer, “Graduate Education and Research for Fish Passage Engineering”, US Fish and Wildlife Service, June 15, 2010-September 30, 2014, $50,000.

Professional Presentations

Invited Presentations “Groundwater Management/Optimization Models: A Researcher’s Perspective on Application”, ASCE, World Environmental and Water Resources Congress, Providence, RI, May 16-20, 2010 “Climate Change and Water Resources” Lecture Series 2009, Western New England College, April 8, 2009. “Climate Change and Water Resources Impacts”, NEIWPCC All Staff and Supervisor Meeting, Lowell, Mass., June 19, 2008. “Climate Change and Storm Flows: Implications for Transportation Facilities”, The Climate Change Think Tank, UMass, Amherst, 29-30 May 2008. “Challenges in Solving Large-Scale Groundwater Management Models”, MODFLOW and More 2008: Ground Water and Public Policy, Golden, Colorado, May 18-21, 2008. “Impacts on Water Resources and Planning Implications”, Workshop on Climate Change and Cape Cod, Waquoit Bay National Estuarine Research Reserve, Barnstable, MA, Dec. 4, 2007. “A New Groundwater Management Model for MODFLOW-2000”, MODFLOW and More 2006: Managing Ground Water Systems, Golden, Colorado, May 23, 2006. “Groundwater Management Models for Water Supply and Environmental Protection”, United Kingdom Environmental Agency, Air, Land and Water Science Group, Birmingham, United Kingdom, May 4, 2005. “Groundwater Management Models: Theory, Numerical Issues and Application”, Swiss Federal Institute of Technology, Zurich, April 19, 2005. “Groundwater Management Models: Theory, Numerical Issues and Application”, MIT, Cambridge, MA, February 17, 2005. "Sustainable Ground-water Development Constrained by Minimum Instream-Flow Requirements and Water-Supply Demands in Rhode Island, USA", (co-author with P. Barlow, presentor and G. Granato), Annual Meeting of the Geological Society of America, Denver Colorado, November 7-10, 2004.

“GWM - A new ground-water management process for MODFLOW-2000” (presented by co-author P. Barlow), National Groundwater Meeting, U.S. Geological Survey, Denver, CO, 2004. “Groundwater Management with Streamflow Simulation”, U.S. Geological Survey, Northborough, MA, June 30, 2003. "Groundwater Recharge and Safe Yield", Annual Conference on Watershed Conservation 2002, Amherst, MA, September 20, 2002. “Simulation and Optimization Methods for Groundwater Management”, Northeastern University, Boston, MA, January 25, 2002. Panelist, "Watershed conservation: Issues and approaches", Watershed Conservation 2000 Conference, Amherst, MA, June 2000. "Remediation Methods for Groundwater Contamination", Watershed Conservation 2000 Conference, Amherst, MA, June 2000. “Practial Methods for Systems-Based Groundwater Remediation Design”, The Johns Hopkins University, Baltimore, MD, April 20, 1999. “Practical Optimization of Groundwater Remediation Systems”, EPA Subsurface Remediation Conference, St Louis, June 7, 1999. “Groundwater Contamination: Assessment and Clean-up”, Connecticut Business and Industry Assoc., Environmental Summer School, New London, CT, June 12, 1996. "Evaluating Sensitivity of Hydraulic Control Optimization Models", 21st Annual ASCE Water Resources Planning and Management Division Conference, Denver, Colo., May 23, 1994. "Fluid Flow Mechanisms that Govern Air Sparging Effectiveness", National Ground Water Association Conference on Chlorinated Volatile Organic Compounds in Ground Water, Kansas City, October 20, 1993. "Remedial Approaches with Optimization", Environ Seminar on Designing Remediation Systems, Princeton, NJ, May 17, 1993. "Application of Numerical Optimization to Remediation Design with Recharge at a Superfund Site", SIAM Conf. on Geosciences, Houston, Texas, April 19, 1993. "Optimizing Remedial Strategies with Modeling: A Case Study", New England Environmental Expo, Boston, Mass., April 13, 1993. "Optimal Well Location in Groundwater Management", Second Forum on NSF Research Activities in Subsurface Systems, Ann Arbor, MI, Oct. 7-9, 1992. "Mathematical Modeling of Natural Environmental Systems", ERI/IAP Formation Meeting, September, 1992. "Optimal Hydraulic Control for Groundwater Remediation", Water Forum '92, Joint Meeting of the HY, WRPM, ID and EE Divisions of ASCE, Baltimore, Md. August, 1992. "Progress on Evaluation of Air Sparging Technology", United Technologies Corp., Farmington, CT, June, 1992. "Probabilistic Methods for Groundwater Simulation", Dept. of Civil Engineering, University of

Massachusetts, Oct. 1991. "Groundwater Modeling for Prioritizing Remediation", United Technologies Corp. meeting at ERI, Sept. 1991. "Reliability of Pump and Treat Strategies for Groundwater Remediation", 18th Annual Conf. of the WRPM Division of ASCE, New Orleans, LA May 1991. "Groundwater Modeling Overview", Connecticut Society of Professional Engineers, Trumball, CT, Feb. 1991. "Groundwater Contamination: Basic Principles, Simulation Modeling and A Case Study", Dept. of Geography, Clark University, April 1988. "Three Dimensional Numerical Modeling of Transient Groundwater Flow: A Case Study" Annual Meeting of the Northeastern Section of the Geological Society of America, Portland, Maine, March 1988. "The Use of Simulation Models to Analyze the Movement of Contaminants in Groundwater", Center for Environmental Health, University of Connecticut, February 1988. "Hybrid Optimization and Simulation Methods for Groundwater Contamination Problems:, Innovation in Ecology: Technology and Theory, U.S. Department of Energy, Gaithersburg, Maryland, April 1987. Contributed Presentations Kelcy Adamec (presenter), Richard Palmer, Austin Polebitski, Scott Steinschneider, David Ahlfeld, Brian Pitta, Casey Brown, “Evaluation of Climate Change Impacts to Reservoir Operations within the Connecticut River Basin”, ASCE, World Environmental and Water Resources Congress, Providence, RI, May 16-20, 2010 Mikaela Laverty (presenter), David Ahlfeld, John Tobiason, “Three-Dimensional Numerical Modeling of Hydrodynamics and Transport in the Wachusett Reservoir”, ASCE, World Environmental and Water Resources Congress, Providence, RI, May 16-20, 2010 Christina Stauber (presenter), John Tobiason, Bryan Sojkowski, David Ahlfeld, “Two-Dimensional Modeling of Contaminant Spills to a Drinking Water Supply Reservoir”, ASCE, World Environmental and Water Resources Congress, Providence, RI, May 16-20, 2010 Kristin Flynt (presenter), Fred Ogden, David Ahlfeld, “Integrated Management of Groundwater and Surface Water Resources in the Bates Creek Alluvial Aquifer near Casper, Wyoming”, National Ground

Water Association Summit, Denver, Colorado, April 11-15, 2010 Paul Barlow (presenter), David Ahlfeld, “Use of Modflow's Groundwater-Management Process for Managing the Effects of Groundwater Pumping and Artificial Recharge On Surface Waters”,

National Ground Water Association Summit, Denver, Colorado, April 11-15, 2010 David Ahlfeld (presenter), Mikeala Laverty, “Reducing Energy Use of Groundwater Pumping by Long-

Range Planning”, National Ground Water Association Summit, Denver, Colorado, April 11-15, 2010 "Minimizing Energy Use in Large Water Supply Systems", (co-author with M. Martin), 2009 World Environmental & Water Resources Congress, Kansas City, Missouri, May 17-21, 2009. "Minimizing Energy Use in Large Water Supply Systems", (co-author with M. Martin), Annual Meeting of the Geological Society of America, Houston, Texas, October 4-8, 2008.

Kristine Baker and D.P. Ahlfeld, “Maximizing the Minimum Hydraulic Head for Groundwater Management Applications”, MODFLOW and More 2008: Ground Water and Public Policy, Golden, Colorado, May 18-21, 2008 (poster)

“Recent Numerical Experiences With Large Scale Groundwater Management”, SIAM Conference on Optimization, May 10 – 13, 2008, at the Boston Park Plaza Hotel and Towers, Boston, Massachusetts. Barlow, P.M., Granato, G.E. and Ahlfeld, D.P., “The use of simulation-optimization modeling of stream-aquifer systems to inform ground-water development decisions, Rhode Island”, presented by P. Barlow at 2007 GSA Denver Annual Meeting, 28–31 October 2007. Tobiason, J.E. and Ahlfeld, D.P., “Hydrodynamic and Water Quality Modelling for Watershed and Reservoir Management”, presentation by J.E. Tobiason, 2007 New York City Watershed Science & Technical Conference, West Point, New York, September 2007. “Alternative Groundwater Management Algorithms for a Large-Scale Transient Problem”, World Environmental and Water Resources Congress, American Society of Civil Engineers, Tampa, FL, May 15-19, 2007. “Can Global Climate Models be Used for Water Resource Planning?”, XVI International Conference on Computational Methods in Water Resources, Copenhagen, Denmark, June, 2006. “Global Climate Model Scenarios for Precipitation in North America”, American Geophysical Union, San Francisco, December 2005 (poster). “Global Climate Model Scenarios for Northeast North America”, Third Annual Massachusetts Water Resources Conference: Research to Practice; Science for Sustainable Water Resources, Umass, Amherst, October 2005. “Characterizing Stream-Aquifer Interaction at an Acid Mine Drainage Site”, American Geophysical Union, San Francisco, December 2004 (poster: co-authors A. Sengupta and Y-C Lin). “New Algorithms for MODFLOW-Based Groundwater Management Models”, International Conference on Finite Element Models, MODFLOW, and More: Solving Groundwater Problems, 13-16 September 2004, Karlovy Vary, Czech Republic. “Algorithm for Groundwater Management Formulations with Head Dependent Boundary Conditions”, XV International Conference on Computational Methods in Water Resources, June, 2004, Chapel Hill, NC. “Modeling Analysis for Characterizing Sulfate Reduction at an Acid Mine Drainage Site”, 2004 Joint Assembly (CGU, AGU, SEG, EEGS), Montreal, Canada, May 2004 (oral presentation by A. Sengupta with co-author D. Ahlfeld) “Use of Artificial Neural Networks for Modeling Indicator Organisms in a Watershed”, Water Resources in the Northeast: Science and Policy Conference, Umass, Amherst, December 2003 (co-author D. Mas). “Analysis of Biogeochemistry of Acid-Mine Drainage at Rowe, Massachusetts”, National Meeting of the American Geophysical Union, San Francisco, CA, December 2003 (poster presented by D. Ahlfeld with co-authors R. Yuretich, S. Ergas, K. Nüsslein, A. Feldman) “Use of Artificial Neural Networks for Modeling Indicator Organisms in a Drinking Water Supply Watershed” Inter. Congress on Watershed Management for Water Supply Systems, American Water Resources Association, June 29-July 2, 2003, New York City, NY. (presented by co-author D. Mas)

“Solving Mixed-Binary Optimization Problems for Groundwater Management”, World Water and Environmental Resources Congress, American Society of Civil Engineers, Philadelphia, PA, June 23-26,

2003. “Numerical Issues in Management of Stream/Aquifer Interaction", XIV International Conference on Computational Methods in Water Resources, Delft, The Netherlands, June, 2002. (co-author M.R. Minihane) “Application of Management Models to Water Supply with Stream/Aquifer Interactions”, 2002 Conference on Water Resouces Planning and Management, Roanoke, VA, May 2002. (presented by co-author M.R. Minihane) “Optimization Models for Managing Stream/Aquifer Interactions”, National Meeting of the American Geophysical Union, San Francisco, CA, December 2001 (co-author M.R. Minihane) “Modeling Migration of Transferred Water Through a Thermally Stratified Reservoir”, National Meeting of the American Geophysical Union, Boston, MA, May 2001 (poster presented by D. P. Ahlfeld with co-authors A. L. Joaquin, J. E. Tobiason, and D.M. Mas) “Spatial and Temporal Trends in Water Quality in the Wachuset reservoir Watershed, Central Massachusetts”, National Meeting of the American Geophysical Union, San Francisco, CA, December 1999 (poster presented by D. Mas with co-authors J.E. Tobiason and P. Sturdevant-Rees). “Robust Optimal Plume Capture in the Presence of Aquifer Heterogeneity”, National Meeting of the American Geophysical Union, Boston, MA, June 1999 (poster presented by A. Mulligan). “The Effect of Variable Streambed Characteristics on Groundwater Discharge”, National Meeting of the American Geophysical Union, Boston, MA, June 1999 (poster presented by D. Mas). “A New Code for MODFLOW-Coupled Groundwater Management of Unconfined Aquifers”, MODFLOW 98, Golden, CO, October, 1998. “Impact of the Variation in Streambed Hydraulic Conductivity on the Distribution of Groundwater Discharge”, National Meeting of the American Geophysical Union, Baltimore, MD, May 1998 (poster) “On the Importance of Modeling Heterogeneity for Remedial Design”, National Meeting of the American Geophysical Union, San Francisco, CA, December 1997 (poster co-authored by E.H. Hill) “Framework for Ground-Water Management Modeling in the Atlantic Coastal Plain”, National Meeting of the American Geophysical Union, Baltimore, MD, May 1997 (presented by co-author P. M Barlow) “Optimal Plume Capture Design Using Particle Tracking Techniques”, National Meeting of the American Geophysical Union, San Francisco, CA, December 1996 (presented by co-author A. Mulligan) “Diagnosis of Structural Identifiability in Groundwater Flow and Solute Transport Equations”, ModelCARE 96: Intl. Conf. on Calibration and Reliability in Groundwater Modeling, Golden, Colorado, September 24-26, 1996 (presented by co-author D. Speed). “The Impact of Numerical Precision on Optimal Groundwater Hydraulic Control”, ASCE North America Water and Environment Congress “˜96, Anaheim, CA, June 22-28, 1996. “Investigating the Non-Convexity of the Groundwater Quality Management Response Function”, ASCE North America Water and Environment Congress “˜96, Anaheim, CA, June 22-28, 1996. “Modeling the biokinetics of biofilms under transient conditions”, 4th Annual Northeast Regional Student Environmental Science and Engineering Conference, April 27, 1996 (presented by R.G. Riefler with B. Smets)

“Integrated Geostatistical and Nonlinear Weighted Least Squares Methods for Parameter Identification”, National Meeting of the American Geophysical Union, Baltimore, MD, May 1995 (presented by co-author D. Speed) "An Algorithm for Approximate Solution of the Groundwater Contaminant Remediation Problem", X International Conference on Computational Methods in Water Resources, Heidelberg, Germany, July 1994. "Recharge Alternatives at a Groundwater Contamination Site Analyzed with Optimization", National Meeting of the American Geophysical Union, San Francisco, California, December, 1992 "Optimal Groundwater Management Without Fixed Well Points", IX Intl. Conf. on Computational Methods in Water Resources, Denver Colorado, June 1992. "The Impact of Parameter Uncertainty on Delineation of Aquifer Protection Areas: Variability in Hydraulic Conductivity", FOCUS Conf. on Eastern Groundwater Issues, National Water Well Assoc., Springfield, Mass., Oct. 1990. "The Relationship Between Remedial Cost and Regulatory Requirements", VIII International Meeting on Computational Methods in Water Resources, Venice, Italy, June 1990. "Relationship Between Groundwater Remediation Cost and Health Benefit", New England Environmental Health Conference, Storrs, Connecticut, April 1990. "Solving Stochastic Groundwater Problems Using Sensitivity Theory and Hermite Interpolating Polynomials", National Meeting of the American Geophysical Union, San Francisco, California, December 1989. "Sensitivity Analysis with Groundwater Management Models", MAXIMA VI, Burlington, Vermont, August 1989. "Towards Practical Use of Optimal Remediation Technology", National Meeting of the American Geophysical Union, Baltimore, Maryland, May 1989. "Nonlinear Programming in Groundwater Management", Third SIAM Conference on Optimization, Boston, Mass., April 1989. "Numerical Experiments on Dependence of Dispersivity on Modeling Scale", National Meeting of the American Geophysical Union, San Francisco, California, December 1988. "Capture Zone Design Using Simulation Models and Optimization Techniques:, Assoc. of Groundwater Scientists and Engineers, Stamford, Connecticut, September 1988. "Solving Stochastic Groundwater Problems Using Sensitivity Theory and Hermite Interpolating Polynomials", VII International Meeting on Computational Methods in Water Resources, Massachusetts Institute of Technology, June 1988. "A Two Stage Model for Optimal Groundwater Remediation", National Meeting of the American Geophysical Union, San Francisco, California, December 1987. "Monitoring Well Network Design Under Uncertainty", National Meeting of the American Geophysical Union, Baltimore, Maryland, May 1987. "Designing Optimal Remediation Strategies at a Superfund Site", Meeting of the Water Resources Planning and Management Division of the American Society of Civil Engineers, Kansas City, Missouri, March 1987.

"A Linearly Constrained Optimization Formulation for Contaminated Groundwater Remediation Using Convective-Dispersive Transport Modeling", National Meeting of the American Geophysical Union, San Francisco, California, December 1986. "Groundwater Management and Modeling" (Session Chair), Joint National Meeting of Operations Research Society of America/The Institute for Management Science, Miami, Florida, October 1986. "Combining Physical Containment with Optimal Withdrawal for Contaminated Groundwater Remediation", VI International Conference on Finite Elements in Water Resources, Lisbon, Portugal, June 1986. "Adjoint Sensitivity Theory Applied to the Convective-Dispersive Transport Equation for Optimal Contaminated Groundwater Remediation", National Meeting of the American Geophysical Union, Baltimore, Maryland, May 1986. "A New Algorithm for Optimal Groundwater Clean-up Using Analytical Derivatives", 2nd Symposium on Analytical Techniques for Energy, Natural Resources, and Environmental Planning, Operations Research Society of America, Philadelphia, PA, April 1986. "Design of Hydraulic Systems for the Removal of Plumes of Contaminated Groundwater", National Meeting of the American Geophysical Union, San Francisco, California, December 1985. "Nonlinear Optimization in Groundwater Management", Joint National Meeting of Operations Research Society of America/The Institute for Management Science, Atlanta, Georgia, November 1985. "Solving Nonlinear Generalized Networks with Simplicial Decomposition", 12th International Symposium on Mathematical Programming by Mathematical Programming Society, Cambridge, MA, August 1985. Technology Transfer Co-Instructor (with P. Barlow) of three day course entitled " Introduction to Ground-Water Flow Management Modeling, June 20-22, 2010, US Geological Survey, Lincoln, NE Co-Instructor (with P. Barlow) of four day course entitled " GW1419H: Introduction to Ground-Water Flow Management Modeling, January 10-13, 2006, US Geological Survey, Salt Lake City, UT Co-Instructor (with P. Barlow) of four day course entitled " GW1419H: Introduction to Ground-Water Flow Management Modeling, August 30 – September 2, 2005, US Geological Survey, National Center, Reston, VA Instructor of one day course entitled "Groundwater Management Models", May 17, 2004, Technical University of Denmark (DTU), Copenhagen. Instructor of one day course entitled "GWM: A New Ground-Water Management Process for MODFLOW-2000", June 24, 2004, US Geological Survey, National Groundwater Meeting, Denver, CO. Instructor of one day course entitled "Flow Optimization: Using MODOFC", January 22, 2002, US Geological Survey, Baltimore, MD. Instructor (with A. Mulligan) of two day course entitled "Flow Optimization: Using MODOFC", March 1998, Burlington, Vermont and Southampton, U.K., June 1998. Instructor (with D. Raviv and K. Seit) of three day course entitled "Applications in Advanced Hydrogeology", May 1993, 1994, 1995, 1996, 1997, 1998, 1999 Cook College of Rutgers University. Guest Lecturer Pace University School of Law in "Scientific and Technical Issues in Environmental Law",

December 1, 1994, February 12, 1996. "Laboratory Results and Theoretical Aspects of Air Sparging", Industrial Affliates Meeting, ERI, November 14, 1994. "The Use of Groundwater Models", USEPA, Boston, MA, September 14, 1993 in the program "The Science Behind Environmental Regulations and Compliance". Appeared in Connecticut Public Television feature, "Troubled Waters", April 28, 1993. Instructor of two day course entitled "Understanding Groundwater Modeling", Feb. 1991, Feb. 1992. Instructor of one day course entitled "The Fundamentals of Groundwater" June 1988, Oct. 1990, April 1991, Nov. 1991. Participation in "When Science and Law Collide", Environmental Law Institute, Stamford, CT, Nov. 1990. Instructor (with G.F. Pinder and M.A. Celia) of three day course entitled "Groundwater Contaminant Transport Modeling", January 1987, 1988, 1989 and 1990. Department of Civil Engineering, Princeton University. Instructor of three day course entitled "Groundwater Modeling: Theory and Practice", for Dan Raviv and Assoc. staff, March 1989. Student Outreach Participation in UConn Middle School Project, 1991, 1992 Presenter at School of Engineering Visitation Day, 1989, 1990,1992,1994 Presenter at Connecticut Honor Seminar, 1993 Presenter at Stafford Public School SPRING program, 1995 Presenter at career program for Hopkins Academy, Hadley, MA 1999 Participation in UMass Earth Connection program, 1999, 2000. Presenter at Massachusetts Envirothon Workshop for high school students, November 2005. Presenter at Massachusetts Envirothon Workshop for high school students, March 11, 2006. Presenter at Massachusetts Envirothon Workshop for high school students, November 18, 2009. Current Issues Judge at Massachusetts Envirothon Workshop, May 13, 2010.

Professional Service

Journal Editorships Associate Editor, Water Resources Research, 1996 – 2000 Associate Editor, Operations Research, 1996 – 2000 Special Associate Editor, Water Resources Research 2005 Associate Editor, Journal of Hydrology, 2008 – present National Committees National Science Foundation Review Panel: Environmental Sustainability, May 2007. Invitee to Department of Energy Computational Subsciences Workshop held January 9-12, 2007 Bethesday MD. UMass Representative to Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI)

National Science Foundation Review Panel for Environmental Engineering, June 2001. National Science Foundation Review Panel for 1995 CAREER proposals, January 1995. Society Committees Task Committee to Revise the Ground Water Management Manual, ASCE, 2001-2010. Water Resources Research Editor Search Committee for the American Geophysical Union, 2000. Policy Sciences Technical Committee of the Hydrology Section of the American Geophysical Union, 1998-2007. Groundwater Management Committee of the Water Resources Planning and Management Division of ASCE, 1997-present. Groundwater Committee of the Hydrology Section of the American Geophysical Union, 1990-1996; 2003 -present. Task Committee on Application of Systems Analysis to Regional Groundwater Management of the Hydraulics Division of ASCE, 1989-1993. Task Committee on Computational Issues in Optimal Aquifer Remediation of the Water Resources Planning and Management Division of ASCE, 1994-1997. Task Committee on Groundwater Monitoring Network Design of the Hydraulics Division of ASCE, 1988-1990.

Journal and Proposal Refereeing Advances in Water Resources American Chemical Society Annals of Operations Research Groundwater Monitoring and Remediation International Science and Technology Center Journal of Contaminant Hydrology Journal of Groundwater Journal of Water Resources Planning and Management, ASCE National Science Foundation The Nature Conservancy U.S. Geological Survey U.S. Department of Energy University Council on Water Resources Water Resources Research Conference Service Session Organizer and co-chair (with P. Barlow) for "Combined Use of Groundwater and Optimization Models to Address Groundwater Management Challenges: Case Studies and Innovative Solution Approaches" at Annual Meeting of the Geological Society of America, Houston, Texas, October 4-8, 2008. Session Organizer for “Model Application for Decision Making” at MODFLOW and More 2008, Golden, Colorado, May 2008.

Contributed to organization of 2007 International Conference of Engineers Without Borders, USA, April 12-14, 2007. Conference Planning Committee for Massachusetts Water Resources Research Center 4th Annual Conference, Umass, Amherst, April 9, 2007 Session Organizer for “Global Climate Change and Hydrologic Processes” at XVI International Conference on Computational Methods in Water Resources. Copenhagen, Denmark, June, 2006. Session Organizer for “Groundwater Management Optimization” at MODFLOW and More 2006: Managing Ground Water Systems, Golden, Colorado, May 2006. Session Organizer and co-chair for special session " Global Climate Change and Hydrologic Processes", semi-annual meeting of the American Geophysical Union, San Francisco, Dec. 2005. Session Chair for “Large Scale Groundwater Modelling and examples of Other Typical Model Applications” at International Conference on Finite Element Models, MODFLOW, and More: Solving Groundwater Problems, 13-16 September 2004, Karlovy Vary, Czech Repuplic. Conference Planning Committee for Water Resources in the Northeast: Science and Policy Conference, Umass, Amherst, December 2003. Session organizer for “Impacts of Climate Change on Water Resources” and “Water Resources Modeling: Groundwater - Surface Water Interaction”. Session Organizer and co-chair for 1 day special session "Water Policy and the Interaction of Groundwater and Surface Water: A Disconnect?", semi-annual meeting of the American Geophysical Union, Washington, DC, June 2000. Judge of Student Presentations for Hydrology Section of the American Geophysical Union, May 1999, June 2000. Host for the 1992 National Ground Water Assoc. Henry Darcy Lecturer, Prof. John Wilson Session Chair for "Water Management/Optimization" at the IX Intl. Conf. on Computational Methods in Water Resources, Denver Colorado, June 1992. Session Organizer and co-chair for 1 day special session "Advances in Optimization Methods for Porous Media Studies", semi-annual meeting of the American Geophysical Union, Dec. 1991. Session Chair for "Application" at the Third SIAM Conference on Optimization, Boston, MA, April 1989. Session Chair for "Software Development" VII International Meeting on Computational Methods in Water Resources, Massachusetts Institute of Technology, June 13-17, 1988. Session Chair for "Groundwater Management and Modeling" Joint National Meeting of Operations Research Society of America/The Institute for Management Science, Miami, Florida, October 1986. Session Chair at 12th International Symposium on Mathematical Programming by Mathematical Programming Society, Cambridge, MA, August 1985. Service to State Agencies Member, Massachusetts Executive Office of Environmental Affairs/University of Massachusetts Environmental Working Groups Watershed Committee, 2000-2003. Member, Connecticut Dept. of Environmental Protection Technical Advisory Committee on Soil Cleanup Criteria for the Protection of Groundwater Quality

Examiner for position of Water Superintendent for the City of Waterbury, Connecticut, Dept. of Public Works. Judge for Engineering Excellence Awards program of the Connecticut Engineers in Private Practice, Hamden, CT, Jan. 28, 1993. Testimony Expert Witness for Pilgrim Watch before the Atomic Safety and LIcensing Board of the Nuclear Regulatory Commission at a hearing regarding the license renewal for Pilgram Nuclear Power Plant, Plymouth, MA, April 10, 2008.

University Administration and Service Administrative Assignments Graduate Program Director, CE and EVE, 2010-2011 Graduate Program Director, EVE 2000-2004 Coordinator, Environmental Engineering Program, 2000-2004 Coordinator, Perrell Computer Laboratory, 1999-present Coordinator, Feng Lecture Series, 1999, 2000 Committee Chairs UMass Chair, Department of Civil and Environmental Engineering, Water Resources Faculty Search Committee, 1998 Chair, Engineering Computer Services, College of Engineering, Unix Administrator Search Committee, 2000 Chair, Department of Civil and Environmental Engineering, Perrell Scholarships Committee, 1999-present Chair, Department of Civil and Environmental Engineering, Water Resources Faculty Search Committee, 2008 UConn Chair, Department of Civil and Environmental Engineering Head Search Committee, 1997 Chair, Department of Civil Engineering Promotion, Tenure and Review Committee, 1995-1996 Chair, Environmental Research Institute Evaluation and Strategic Planning Committee, 1995-1996 Chair, Department of Civil Engineering Environmental and Hydrology Faculty Search Committees, 1993-1994 Chair, Environmental Resources Institute Seminar Series Committee, 1991-1992 Committee Memberships UMass COE ABET Coordinating Committee 2006-2009 COE Community, Diversity and Social Justice Committee 2004-present. CEE ABET Steering Committee 1998-present CEE Department Personnel Committee 1999-2000, 2006-2009 COE Personnel Committee 2009-present UConn Institute of Water Resources Technical Review Committee, 1990- 1996 School of Engineering Computer and Communications Advisory Committee 1992-1996 School of Engineering Research Coordination and Facilitation Committee 1993-1994 Civil Engineering Graduate Affairs, 1994-1997 Civil Engineering Curriculum and Courses Committee 1990-1992

Civil Engineering Planning Committee 1990-1992 FLC Evacuation and Renovation Committee, 1990-1992 Civil Engineering Facilities Committee 1992-1994 Civil Engineering Promotion, Tenure and Review Committee 1994-1995

Consulting Activities

Analysis of Republican River water allocation; Kansas, Nebraska and Colorado Analysis concerning groundwater contamination in DeLisle, Mississippi Expert testimony concerning groundwater contamination in Pompton Lakes, New Jersey Groundwater analysis concerning contamination in Fairfield, Maine Site Remediation modeling and design at Glendale, California Groundwater remedial optimization analysis at Silver Creek, Missouri Superfund cost allocation analysis at Glendale, California Groundwater modeling and remedial optimization at Tom's River, New Jersey Groundwater flow modeling and remedial design at Hoboken, New Jersey Groundwater flow modeling and remedial design at Moonachie, New Jersey Groundwater flow modeling and remediation design at Pennsauken, N.J. Groundwater modeling and expert testimony concerning industrial solvent contamination in Tucson, Arizona. Expert testimony concerning gasoline contamination in Milford, New Jersey. Groundwater analysis concerning solvent contamination in Torrington, Connecticut. Expert testimony concerning gasoline contamination in southern New Jersey. Groundwater flow modeling and remediation design at New London, Connecticut. Expert testimony concerning groundwater contamination at the Scarboro Landfill. Expert testimony concerning industrial solvent contamination in Southington, Connecticut. Groundwater analysis and modeling of industrial solvent contamination on Long Island, NY to support litigation. Remediation design and three dimensional model development for Dan Raviv and Associates. Groundwater analysis and modeling of industrial solvent contamination in Woburn, MA to support litigation.

Awards and Honors Dept. of Civil Engineering Excellence in Teaching Award, 1993 National Science Foundation Research Initiation Award, 1990-93 Ford Foundation Forgivable Loan for future engineering faculty, 1985-87. General Electric Forgivable Loan for future engineering faculty, 1985-86. Princeton University Fellowship, Dept. of Civil Engineering, 1983-84. Arnold Award for Outstanding Achievement in Applied Engineering, Environmental Resources Engineering Department, Humboldt State University, 1983. Senior Man of the Year, Humboldt State University, 1983. W.C. Carr Scholarship, awarded by Humboldt State University, 1981-83.