This increase in understanding was also due to advances in a number of scientific disciplines and improvements in tools used for site characterization and ground-water sampling. Gradually, with the increasing awareness of subsurface pollution of these water resources, the understanding of complex hydrogeochemical processes which govern the fate and transport of contaminants in the subsurface increased. These were highly productive aquifers that supplied drinking water via private wells or through public water supply systems. Large water-bearing units were identified and sampled in keeping with that objective. Initially the emphasis was on the assessment of water quality of aquifers as sources of drinking water. The methods and objectives of ground-water sampling to assess water quality have evolved over time. Technology Innovation Office Office of Solid Waste and Emergency Response, US EPA, Washington, DC Kerr Environmental Research Center Ada, Oklahoma Superfund Technology Support Center for Ground Water National Risk Management Research Laboratory Subsurface Protection and Remediation Division Robert S. Superfund Technology Support Center for Ground Water For further information contact: Robert Puls, 40, Subsurface Remediation and Protection Division, NRMRL, Ada, OK. It is hoped that the paper will support the production of standard operating procedures for use by EPA regional personnel and other environmental professionals engaged in ground-water sampling. This paper is intended to provide background information on the development of low-flow sampling procedures and its application under a variety of hydrogeologic settings. One of the major concerns of the Forum is the sampling of ground water to support site assessment and remedial performance monitoring objectives. The Regional Superfund Ground Water Forum is a group of ground-water scientists, representing EPA's Regional Superfund Offices, organized to exchange information related to ground-water remediation at Superfund sites. ![]() Office of Solid Waste and Emergency ResponseĮPA Ground Water Issue by Robert W. United States Environmental Protection Agency
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