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原文传递 Final Report: 2004 Monitoring Well Installation and Sampling at Centralia, Kansas.

题名：	Final Report: 2004 Monitoring Well Installation and Sampling at Centralia, Kansas.
关键词：	detection, geology, health hazards, hydrology, radioactive materials, sampling, settling ponds, waste disposal, water wells, centralia(kansas)
摘要：	This document reports on monitoring well installation and sampling in 2004 at the location of a grain storage facility formerly operated in Centralia, Kansas, by the Commodity Credit Corporation (CCC) of the U.S. Department of Agriculture (USDA). Argonne National Laboratory is conducting environmental investigations of carbon tetrachloride contamination in groundwater at this site for the CCC/USDA. With the approval of the Kansas Department of Health and Environment (KDHE), Argonne installed six monitoring wells at the former facility in July 2004 to supplement existing monitoring points (piezometers) installed during Argonnes Phase I investigation in 2002. Together, the monitoring wells and piezometers constitute a monitoring network designed to (1) confirm the lateral distribution of carbon tetrachloride in the groundwater, (2) track any migration of contaminants that might take place, and (3) monitor aquifer geochemical characteristics. To verify that the six new monitoring wells had been developed adequately, they were sampled after their installation in July 2004 for analysis for volatile organic compounds (VOCs). The monitoring wells were sampled again in August 2004, after a stabilization period of four weeks. Five of the Phase I piezometers were also sampled in August 2004. Results of analysis of the August 2004 groundwater samples for VOCs confirmed the Phase II investigations findings (based on sampling in March and April 2003) that carbon tetrachloride contamination in groundwater is generally confined to the boundary of the former CCC/USDA facility. Little migration of contamination from the former facility has been evident. Nevertheless, the network of monitoring wells now in place may not be adequate to delineate the extent of the plume. Future expansion of the network will proceed per agreement between the CCC/USDA and the KDHE.
总页数：	u0707；96p
报告类型：	科技报告