EDUCATION
EMPLOYMENT
HydroQual, 1997 - Present
Environmental Engineering Consulting Firm
HydroQual, Inc., Mahwah, New Jersey
Center for Research in Water Resources, 1995 - 1997
University Research Center
CRWR, Austin, Texas
Cochrane Associates, 1992 - 1995
Environmental Engineering Consulting Firm
Cochrane Associates, Inc., Boston, Massachusetts
Cambridge DPW, 1992
Department of Public Works, Engineering and Sewer Division
City of Cambridge, Cambridge, Massachusetts
WARTIG, Summer 1990, 1991
Environmental Chemistry Consulting Firm
WARTIG Chemieberatung GMBH, Hamburg, Germany
PAPERS
Hellweger, F. L., and U. Lall, 2004. Modeling the Effect of Algal Dynamics on Arsenic Speciation in Lake Biwa. Environ. Sci. Technol. (in review).
Hellweger, F. L., 2004. Dynamics of As Speciation in Surface Water: As(III) Production by Algae. In: Advances in Arsenic Research: Integration of Experimental and Observational Studies and Implications for Mitigation, O'Day, P, D. Vlassopoulos, X. Meng, L. Benning, Eds. American Chemical Society, Washington, DC, (In review).
Blumberg, A. F., and F. L. Hellweger, 2004. Hydrodynamics of the Hudson River Estuary. In: Hudson River Fishes and their Environment, Waldman, J., K. Limburg, and D. Strayer, Eds. American Fisheries Society, Alpharetta, Georgia, (In review)
Hellweger, F. L., P. Schlosser, U. Lall, and J. K. Weissel, 2004. Use of Satellite Imagery for Water Quality Studies in New York Harbor. Estuarine Coastal Shelf Sci., accepted.
Hellweger, F. L., A. F. Blumberg, P. Schlosser, D. T. Ho, T. Caplow, U. Lall, and H. Li, 2004. Transport in the Hudson Estuary: A modeling study of estuarine circulation and tidal trapping. Estuaries, 27(3), 527-538.
[ PDF ]
[ PDF (Model Skill Assessment Metrics) ]
Hellweger, F. L., K. J. Farley, U. Lall, and D. M. Di Toro, 2003. Greedy Algae Reduce Arsenate. Limnol. Oceanogr., 48, 2275-2288.
[ PDF ]
Hellweger, F. L. and A. L. Gordon, 2002. Tracing Amazon River Water into the Caribbean Sea. J. Mar. Res., 60(4), 537-549.
[ Abstract ]
[ PDF ]
Hellweger, F. L., L. Hay Wilson, E. M. Naranjo, and P. J. Anid, 2002. Adding Human Health Risk Analysis Tools to Geographic Information Systems. Transactions in GIS. 6(4), 471-484.
[ Abstract ]
[ PDF ]
McGrath, J. A., F. L. Hellweger and D. M. Di Toro, 2001. Equilibrium Partitioning Sediment Guidelines (ESGs) for PAH Mixtures and their Application to MGP Sites. In: Sediments Guidance Compendium. A. Coleman, Ed. Electric Power Research Institute (EPRI), Palo Alto, California.
Hellweger, F. L., K. J. Farley, D. Damiani, and P. J. Anid, 2001. Mathematical Modeling of Toxics Fate, Transport and Bioaccumulation using GIS . Proceedings of the 21st Annual ESRI International User Conference, Environmental Systems Research Institute, Redlands, California.
Hellweger, F. L., E. Naranjo, G. M. Ostroff, R. Veneros and P. J. Anid, 2000. SWMOD: A Simple GIS Based Toxics Modeling Framework. Proceedings of the Watershed 2000 Specialty Conference, Water Environment Federation, Alexandria, Virginia.
[ PDF ]
Naranjo, E., F. L. Hellweger, L. Wilson and P. J. Anid, 2000. Mapping Risk from Mining Activities: A Case Study of Oruro, Bolivia. Proceedings of the 20th Annual ESRI International User Conference, Environmental Systems Research Institute, Redlands, California.
Hellweger, F. L., and D. R. Maidment, 1999. Definition and Connection of Hydrologic Elements Using Geographic Data. J. Hydrol. Engrg., 4(1), 10-18.
[ Abstract ]
[ PDF ]
Hellweger, F. L., E. Naranjo, P. Shanahan, K. Fellows, G. M. Ostroff and P. J. Anid, 1999. Screening-Level GIS Tools for Modeling Environmental Contamination from Mining Activities. Proceedings of the 19th Annual ESRI International User Conference, Environmental Systems Research Institute, Redlands, California.
[ HTML ]
Cochrane, J. J., A. Banoub, and F. L. Hellweger, 1996. Growing LIMS. Operations Forum, 13(2), 22-25.
Cochrane, J. J., and F. L. Hellweger, 1995. A Method amid the Madness - Introducing a straightforward procedure for process control. Operations Forum, 12(2), 14-17.
Cochrane, J. J., and F. L. Hellweger, 1994. Identifying the key factors for predicting and maintaining treatment plant performance. J. New England Wat. Environ. Assoc., 28(1), 79-90.
PRESENTATIONS
Hellweger, F., 2004. Modeling Phosphorus Luxury Uptake in Lake Biwa, Japan. Summer Meeting. American Society of Limnology and Oceanography (ASLO). Savannah, Georgia.
[ PPT (2.9MB)]
Jain, A., F. Hellweger, Y. Skorobogatov, M. Gallucci, J. Lingle, and T. Blazicek, 2004. Model for the Assessment and Remediation of Sediments (MARS): Recent Modifications with Applications to Tidal Rivers and Future Plans. Natural Gas Technologies II Conference and Exhibition.
Gas Technology Institute (GTI). Phoenix, Arizona.
[ PDF (conference brochure)]
Farley, K. J., K. J. Rader, R. Costanzo, J. Nemesh, F. L. Hellweger and D. M. DiToro, 2003. Development of a "Unit World" Model for Metals in Aquatic Environments. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Austin, Texas.
McGrath, J. A., F. L. Hellweger, T. F. Parkerton, and D. M. Di Toro, 2003. Application of the Narcosis Target Lipid Model to Complex Mixtures Using Gasolines as a Case Study. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Austin, Texas.
Hellweger, F. L., K. J. Farley, U. Lall, and D. M. Di Toro, 2003. Arsenic transformation by algae: The role of phosphorus luxury uptake. 226th National Meeting, American Chemical Society (ACS), New York City, New York.
[ Abstract] [PPT]
Jain, A., M. Gallucci, Y. Skorobogatov, J. Lingle, and F. L. Hellweger, 2003. Model for the Assessment and Remediation of Sediments (MARS): Recent Modifications with Applications to Tidal Rivers and Future Plans. A Workshop on In-situ Contaminated Sediment Capping.
Hosted by EPRI, USEPA, USACE, NOAA and US Navy. University of Cincinnati, Ohio.
Blumberg, A. F., and F. L. Hellweger, 2003. Circulation and Mixing in the Hudson River Estuary. Hudson River Fishes & Their Environment. Hudson River Environmental Society (HRES). Poughkeepsie, New York.
[ PDF (Flyer) ]
[ Abstract ]
[ PPT ]
Farley, K. J., D. M. Di Toro, J. D. Mahony, F. L. Hellweger, P. Dombrowski, K. Bisceglia, and K. Rader, 2002. Modeling Arsenic Cycling in Lakes and Reservoirs. Environmental Science: Water, Gordon Research Conference, Holderness, New Hampshire.
Hellweger, F. L., A. F. Blumberg, P. Schlosser, D. T. Ho, T. Caplow, U. Lall and H. Li, 2002. Mixing in the Hudson Estuary – The role of estuarine circulation and tidal trapping. Fall Meeting, American Geophysical Union (AGU), San Francisco, California.
[ Abstract ]
[ PPT ]
[ EXE (Animation. It's clean) ]
[ Outstanding Student Paper Award (OSPA) ]
Di Toro, D. M., J. A. McGrath, and F. L. Hellweger, 2001. The Intrinsic Toxicity of Narcotic Chemicals and PAHs in Pure Phases and Mixtures. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Baltimore, Maryland.
McGrath, J. A., F. L. Hellweger, W. Stubblefield, and D. M. Di Toro, 2001. Predicting the Effects of Weathering on Crude Oil Using Narcosis Theory: Case Studies. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Baltimore, Maryland.
Hellweger, F. L., K. J. Farley, D. Damiani, and P. J. Anid, 2001. Mathematical Modeling Of Toxics Fate, Transport and Bioacccumulation Using GIS. 33rd Mid-Atlantic Industrial and Hazardous Waste Conference, New York City, New York.
[ Abstract ]
Hellweger, F. L., and G. M. Ostroff, 2001. www.ComCarto.com - An Internet Map Server. Annual Conference, New England Water Environment Association (NEWEA), Boston, Massachusetts.
[ Abstract ]
Hellweger, F. L., and D. M. Di Toro, 2001. Modeling the Distribution and Fate of PBTs in the Environment. Workshop on Persistent, Bioaccumulative and Toxic Chemicals: Assessing the State of the Science, Water Environment Federation (WEF), Arlington, Virginia.
Hellweger, F. L., K. J. Farley, D. Damiani, and P. J. Anid, 2001. Toxic Fate and Bioaccumulation Modeling Inside GIS. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Nashville, Tennessee.
[ Abstract ]
Shrestha, P. L., A. F. Blumberg, D. M. Di Toro, and F. L. Hellweger, 2000. A Three-Dimensional Model for Cohesive Sediment Dynamics in Shallow Bays. Joint Conference on Water Resources Engineering and Water Resources Planning & Management, American Society of Civil Engineers (ASCE), Minneapolis, Minnesota.
Hellweger, F. L., 2000. Mathematical Modeling of Mining Pollution Using GIS. 32nd Annual Mid-Atlantic Industrial and Hazardous Waste Conference, Troy, New York.
Di Toro, D. M., J. A. McGrath, and F. L. Hellweger, 2000. Review and Comparison of Existing and Developing Standards/Criteria/Screening Guidelines. MGP Site Management Sediment Seminar II, Electric Power Research Institute (EPRI), St. Simon's Island, Georgia.
Hellweger, F. L., 2000. Water Quality and GIS: An Overview of Current Technology. Annual Conference. New England Water Environment Association (NEWEA), Boston, Massachusetts.
[ Abstract ]
[ PPT ]
Garland, E. J., F. L. Hellweger, M. J. Carroll, D. M. Di Toro, A. Jain and O. K. Scheible, 1999. MARS: Model for the Assessment and Remediation of Sediments. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Philadelphia, Pennsylvania.
Jain, A., F. Hellweger, K. Summers, and S. Liu, 1998. Development of Remediation Scenarios Using Models, Environmental Biotechnologies and Site Remediation Technologies Conference, IGT.
Hellweger, F. L., and D. R. Maidment, 1998. BALANCE: A GIS Based Water Quality Model. Annual Conference, New England Water Environment Association (NEWEA), Boston, Massachusetts.
[ Abstract ]
Hellweger, F. L., and D. R. Maidment, 1997. BALANCE: A GIS Based Water Quality Model. ArcView GIS Application Development Competition (first place), Annual Conference, Environmental Systems Research Institute (ESRI), Redlands, California.
Maidment, D. R., F. L. Hellweger, and A. Quenzer, 1997. Integrating Land Surface Runoff and Receiving Water Impacts in Corpus Christi Bay. Spring Meeting, American Geophysical Union (AGU), Baltimore, Maryland.
Hellweger, F. L., 1997. Environmental Data and Education on the Internet: An Overview of Current Technology. Annual Conference, New England Water Environment Association (NEWEA), Boston, Massachusetts.
Cochrane, J. J., A. Banoub, and F. L. Hellweger, 1996. Implementation of a customized laboratory information management system (LIMS). Annual Conference, New England Water Environment Association (NEWEA), Boston, Massachusetts.
Hellweger, F. L., and J. J. Cochrane, 1996. Using Technical Calculation Software as a Process Design and Evaluation Tool. Annual Conference, New England Water Environment Association (NEWEA), Boston, Massachusetts.
Cochrane, J. J., A. Banoub, and F. L. Hellweger, 1995. An affordable customized laboratory information management system (LIMS) for a medium sized plant. Annual Conference, Water Environment Federation (WEF), Miamu Beach, Florida.
Cochrane, J. J., and F. L. Hellweger, 1995. An analysis of the advantages of combined CAD mapping & GIS with computerized collection system maintenance. Annual Conference, New England Water Environment Association (NEWEA), Boston, Massachusetts.
Cochrane, J. J., and F. L. Hellweger, 1994. Interpreting Treatment Plant Performance Using an Attainment Frequency Methodology. Annual Conference, Water Environment Federation (WEF), Chicago, Illinois.
Cochrane, J. J., and F. L. Hellweger, 1994. Integrating GIS mapping with computerized collection system maintenance. Annual Conference, New England Water Environment Association (NEWEA), Boston, Massachusetts.
Cochrane, J. J., and F. L. Hellweger, 1994. Identifying the key factos for predicting and maintaining treatment pland performance. Annual Conference, New England Water Environment Association (NEWEA), Boston, Massachusetts.
POSTERS
Ho, D., P. Schlosser, F. Hellweger, T. Caplow, 2003. Factors Controlling Net Advection and Longitudinal Dispersion in the Tidal Hudson River: Results from SF6 Tracer Experiments. Fall Meeting, AGU, San Francisco, California.
Hellweger, F. L., K. J. Farley, U. Lall, and D. M. Di Toro, 2003. Arsenic transformation by algae: The role of phosphorus luxury uptake. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Austin, Texas.
[ Abstract ]
[ PDF (4.2 MB)]
Hellweger, F. L., M. J. Gallucci, A. Jain, D. K. Jackson, and B. Cheney, 2003. Model Helps Screen Remediation Alternatives at MGP Site. A Workshop on In-situ Contaminated Sediment Capping.
Hosted by EPRI, USEPA, USACE, NOAA and US Navy. University of Cincinnati, Ohio.
[ Abstract ]
Hellweger, F. L., K. J. Farley, U. Lall, and D. M. Di Toro, 2002. Greedy Algae Reduce Arsenate. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Salt Lake City, Utah.
[ Abstract ]
[ PDF ]
Hellweger, F. L., K. J. Farley, U. Lall, and D. M. Di Toro, 2002. A Model for Arsenic Transformation by Algae. Environmental Bioinorganic Chemistry, Gordon Research Conference, Andover, New Hampshire.
[ Abstract ]
Hellweger, F. L., J. A. McGrath, W. Stubblefield, and D. M. Di Toro, 2001. Dissolution, Weathering and Toxicity of Exxon Valdez Crude Oil. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Baltimore, Maryland.
[ Abstract ]
Jain, A., and F. L. Hellweger, 2001. MARS: Model for the Assessment and Remediation of Sediments. Forum on Managing Contaminated Sediments at Hazardous Waste Sites, US Environmental Protection Agency (USEPA), Alexandria, Virginia.
Hellweger, F. L., K. J. Farley, U. Lall, and D. M. Di Toro, 2001. Arsenic Fate and Transport Modeling in Lakes: Approach and Preliminary Results. Arsenic in Drinking Water, An International Conference at Columbia University, New York City, New York.
[ Abstract ]
Hellweger, F. L., E. M. Naranjo, G. M. Ostroff, and P. J. Anid, 2000. A Shared Environmental Geographic Information System to Build an Inter-Agency Relationship. Joint Conference on Water Resources Engineering and Water Resources Planning & Management, American Society of Civil Engineers (ASCE), Minneapolis, Minnesota.
[ Abstract ]
Shrestha, P. L., A. F. Blumberg, D. M. Di Toro, J. J. Fitzpatrick, F. L. Hellweger and L.A. Khan, 1999. Sediment-Transport Modeling in Green Bay: A Precursor to Addressing PCB Fate and Transport, 20th Annual Meeting, Philadelphia, Pennsylvania.
Hellweger, F. L. and D. M. Di Toro, 1999. Orthogonal Distance Regression: An Alternative to Ordinary Least Squares, Poster Presentation. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Philadelphia, Pennsylvania.
COURSES
Di Toro, D., R. Mutch, C. Ingersoll, K. J. Farley, J. McGrath, and F. L. Hellweger, 2003. Characterization and Remediation of Contaminated Sediments. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Austin, Texas.
[ Abstract ]
Di Toro, D. M., K. J. Farley, F. L. Hellweger, and P. Paquin, 2003. Water Quality Modeling. 48th Institute on Water Pollution Control. Manhattan College, Riverdale, New York.
Hellweger, F. L., D. Ames, J. Rowe, W. Saunders, and J. Horsburgh, 2002. Application of Geographic Information System (GIS) Technology to Water Quality Problems. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Salt Lake City, Utah.
[ Abstract ]
Hellweger, F. L., W. Saunders, and G. Carter, 2001. Application of Geographic Information System (GIS) Technology to Water Quality Problems. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Baltimore, Maryland.
[ Abstract ]
[ JPG ]
Hellweger, F. L., 2001. Geographic Information System (GIS). Annual Meeting, Hudson-Delaware Chapter, Society of Environmental Toxicology and Chemistry (SETAC), West Chester, Pennsylvania.
[ Abstract ]
Hellweger, F. L., G. M. Ostroff, E. M. Naranjo, and W. Wheaton, 2000. Application of Geographic Information System (GIS) Technology to Water Quality Problems. Annual Meeting, Society of Environmental Toxicology and Chemistry (SETAC), Nashville, Tennessee.
[ Abstract ]
Hellweger, F. L., 2000. Geographic Information System (GIS). Annual Meeting, Hudson-Delaware Chapter, Society of Environmental Toxicology and Chemistry (SETAC), Stockton, New Jersey.
[ Abstract ]
LECTURES
Hellweger, F. L., 2003. Introduction to Spatial Hydrologic Calculations. Physical Hydrology. Graduate course (Prof. Lall, E6240), Columbia University, New York, New York.
Hellweger, F. L., 2002. Introduction to BASINS & GIS. Summer Institute, Manhattan College, Riverdale, New York.
Hellweger, F. L., 2000. Toxic chemical modeling using GIS. Summer Institute, Manhattan College, Riverdale, New York.
Hellweger, F. L., 1999. GIS Applications to Environmental Problems. Undergraduate course (Prof. Gorokhovich, E1001), Columbia University, New York, New York.
Hellweger, F. L., 1999. Introduction to Programming. Undergraduate Course (Prof. Assaf-Anid, ENGS-116), Manhattan College, Riverdale, New York.
SESSION CHAIRING
Hellweger, F., 2004. CS38 Modeling Approaches. Summer Meeting. American Society of Limnology and Oceanography (ASLO). Savannah, Georgia.
[ Program Link HTML ]
AWARDS
2002. Outstanding Student Presentation Award (OSPA). American Geophysical Union (AGU) Fall Meeting, San Francisco, California.
1997. First Place Programming Competition. Environmental Systems Research Institute (ESRI) User Conference, San Diego, California.
1995. Sears B. Condit Award. Northeastern University, Boston, Massachusetts.
[ GIF ]
MEMBERSHIP
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Last Updated: 6/10/2004