This transmittal is a response to your request of January 22, 2009, for a letter work plan outlining a program of annual groundwater and surface water monitoring at Everest, Kansas. Once yearly, they propose to conduct surface water sampling at the 5 locations shown in Figure 1 and groundwater sampling in the 16 wells identified in Figure 2. The wells will be sampled according to the low-flow procedure. The next sampling event is planned for April 2009. The surface water and groundwater samples collected will be preserved, shipped, and analyzed for volatile organic compounds as in previous work at Everest. Results will be reported to the KDHE. This monitoring program will continue until identified plume conditions at the site indicate a technical justification to change the monitoring program.

In September 2005, the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) initiated periodic sampling of groundwater in the vicinity of a grain storage facility formerly operated by the CCC/USDA at Morrill, Kansas. The sampling at Morrill is being performed on behalf of the CCC/USDA by Argonne National Laboratory, in accord with a monitoring program approved by the Kansas Department of Health and Environment (KDHE 2005), to monitor levels of carbon tetrachloride contamination identified in the groundwater at this site (Argonne 2004, 2005a). This report provides results for the most recent monitoring event, in October 2008. Under the KDHE-approved monitoring plan (Argonne 2005b), groundwater was initially sampled twice yearly for a period of two years (in fall 2005, in spring and fall 2006, and in spring and fall 2007). The samples were analyzed for volatile organic compounds (VOCs), as well as for selected geochemical parameters to aid in the evaluation of possible natural contaminant degradation (reductive dechlorination) processes in the subsurface environment. During the two-year period, the originally approved scope of the monitoring was expanded to include vegetation sampling (initiated in October 2006) and surface water and stream bed sediment sampling (initiated in March 2007, after a visual …