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| Hydrogeologic Investigations & Analyses |
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The field of hydrogeology is one of GZA GeoEnvironmental, Inc.'s (GZA) areas of prime expertise. Our approach in this area centers around building an intuitive, three dimensional understanding of subsurface behavior via (1) a strong understanding of geologic and hydrologic principles, (2) strategic field measurement and (3) engineering analysis, and then applying this understanding to our Clients’ environmental and geotechnical problems. In the mid-1970s, we were among the first to apply an engineering approach to hydrogeologic investigations transferring our subsurface insights to the evaluation of contaminant fate and transport problems and groundwater control.
Over these years of experience, we have developed an appreciation for the uncertainties inherent in the behavior of subsurface media. We have used this experience to develop expertise in understanding and quantifying these uncertainties and in developing practical solutions that consider the benefits and risks to our Clients. Thus, our approach to hydrogeologic investigations is, therefore, an extension of our 40-year history of applying engineering principles and judgment to develop workable, cost-effective solutions that limit the risks to our Clients.
While this expertise is a fundamental component to many geotechnical and environmental projects we execute, there are service areas for which this expertise is primary. They include (among others): watershed delineation and characterization studies in support of water supply development and/or protection; hydrogeologic characterization studies for the development of groundwater monitoring systems; groundwater modeling to evaluate and/or predict groundwater movement under proposed stresses in support of remediation, water supply development/expansion or construction dewatering; contaminant fate and transport analyses in support of site characterization, remediation or water supply protection; mounding analyses to evaluate/design groundwater recharge systems; and natural attenuation analyses. |
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 Radionuclide Release Investigation
Indian Point Energy Center (IPEC)
Buchanan, New York
As a part of the Independent Spent Fuel Storage Installation (ISFSI) Dry Cask Storage Project at IPEC, certain modifications were required within the Indian Point Unit 2 Fuel Storage Building (IP2-FSB). Among these was the installation of a new crane to assist with the transfer of spent fuel into the dry casks. The installation of this crane required the construction of new foundations for the crane supports and a sub-surface counterweight. It was necessary to excavate to bedrock through the floor of the IP2-FSB adjacent to the IP2-Fuel Storage Pool (FSP) to construct the crane foundations and counterweight. GZA participated with and on behalf of Entergy Nuclear Northeast in several NEI and EPRI presentations on the Groundwater Protection Initiative, as well as public hearings, public meetings, and community outreach events with representatives from the public and the NRC in attendance.
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