Dua Guvanasen, Ph.D., PE Sr. Vice President 11107 Sunset Hills Road, Suite 400 Reston, VA 20190 Phone: (703) 478-5186 FAX: (703) 471-4180	HGL has been at the forefront of the modeling field since 1987, pioneering, developing, and implementing computer-simulation models for environmental remediation and restoration, munitions response, and water resources projects. As one of the few companies that remain committed to research and development, we have unique capabilities to develop tailored models for the most complex and demanding applications. Our models are used to ensure environmentally safe disposal and re-use of hazardous and industrial wastes, to ensure long-term sustainable use of groundwater and surface water resources, to assess the risks associated with industrial pollutants in groundwater and surface water, and to design cost-effective cleanup remedies.   WATER RESOURCES MANAGEMENT Construction Management Data Management & GIS Permitting & Regulatory Support Well Field & Reservoir Operations AQUIFER AND WATERSHED ASSESSMENT Aquifer Characterization Engineering Studies Groundwater / Surface Water Interactions Risk Assessment Safe-Yield Analysis Saltwater Intrusion Source Water Assessment Stream Flow Analysis & Flood Prediction Water Quality Studies MODELING AND INNOVATIVE TECHNOLOGIES Custom GIS/Data Management Tools Document Management / Public Record Support MODHMS® & MODFLOW-SURFACT™ Purchase HGL Software	HGL developed and calibrated an integrated surface water/groundwater model to minimize water quality impacts from agricultural runoff into the Everglades National Park.   HGL is integrating its 3D ground/surface-water model with CALSIM water allocation model and PBMO™ to optimize management of water resources and protect ecosystems of San Joaquin River in California’s Central Valley.

Copyright © 2009 HydroGeoLogic, Inc.