During October 1992, 15 stainless steel wells, wells 800161 through 800203D,
were installed around the landfill as part of the IEPA-approved closure plan.
These wells are required to be monitored as part of the IEPA-approved groundwater
monitoring program, effective January 1995. These wells are set in five clusters,
each cluster consisting of a shallow, medium, and deep well (see Figure
6.5 and Table 6.26). Wells 800172 and
800182 are consistently dry.
Prior to 1995, the groundwater monitoring network surrounding the 800 Area Landfill consisted of 16 wells. All results for samples collected from this network have been previously reported in ANL-E Site Environmental Reports. In January 1995, the IEPA deleted the 16 wells from the groundwater monitoring network. During October 1995, each well was abandoned and sealed in accordance with state and county well code requirements.
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