October 2008 monitoring results for Morrill, Kansas.

Abstract

At the request of KDHE (2008), samples were also collected from selected monitoring wells (MW1S, MW2S, MW3S, and MW11S) after purging of three well volumes to verify that samples collected with the low-flow method were representative of site conditions. This comparison sampling is discussed further in Section 3.5. The sequence of activities during the October 2008 sampling event is summarized in Appendix A. Groundwater samples for VOCs analyses were collected in appropriate laboratory containers, labeled, packaged, and chilled to 4C by placement in ice-filled coolers. The samples were shipped via an overnight delivery service to the Applied Geosciences and Environmental Management (AGEM) Laboratory at Argonne for VOCs analyses with EPA Method 524.2 (EPA 1995). Separate aliquots of selected samples (chosen in the field) were shipped to TestAmerica Laboratories, Inc., South Burlington, Vermont, for verification VOCs analysis. As recommended at the end of the original two-year monitoring period (Argonne 2008a), routine analyses for the attenuation parameters sulfate, sulfide, methane, total organic carbon, carbon dioxide, alkalinity, chloride, and dissolved hydrogen were discontinued after the October 2007 sampling event.