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September 2008 monitoring results for Centralia, Kansas.

Description: In September 2005, periodic sampling of groundwater was initiated by the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) in the vicinity of a grain storage facility formerly operated by the CCC/USDA at Centralia, Kansas. The sampling at Centralia 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). The objective is to monitor levels of carbon tetrachloride contamination identified in the groundwater at Centralia (Argonne 2003, 2004, 2005a). Under a KDHE-approved monitoring plan (Argonne 2005b), the groundwater was sampled twice yearly (for a recommended period of two years) for analyses for volatile organic compounds (VOCs), as well as measurement of selected geochemical parameters to aid in the evaluation of possible natural contaminant degradation (reductive dechlorination) processes in the subsurface environment. The sampling in September 2007 represented the fifth and final monitoring event performed under the two-year twice yearly monitoring program (Argonne 2006a,b, 2007a, 2008a). The results from the two-year monitoring program demonstrated the presence of carbon tetrachloride contamination at levels exceeding the KDHE Tier 2 Risk-Based Screening Level of 5 {micro}g/L for this compound in a broad groundwater plume that has shown little movement. The relative concentrations of chloroform, the primary degradation product of carbon tetrachloride, suggested that some degree of reductive dechlorination or natural biodegradation was taking place in situ at the former CCC/USDA facility on a localized scale. The CCC/USDA subsequently developed an Interim Measure Conceptual Design (Argonne 2007b), proposing a pilot test of the Adventus EHC in situ chemical reduction technology, that was approved by the KDHE in November 2007 (KDHE 2007). Implementation of the proposed interim measure occurred in December 2007. The objective was to create highly reducing conditions that would enhance both chemical and ...
Date: February 24, 2009
Creator: LaFreniere, L. M.
Partner: UNT Libraries Government Documents Department

Final work plan: indoor air and ambient air sampling near the former CCC/USDA grain storage facility in Everest, Kansas.

Description: The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) operated a grain storage facility at the western edge of Everest, Kansas, from the early 1950s to the early 1970s. Sampling by the Kansas Department of Health and Environment (KDHE) in 1997 resulted in the detection of carbon tetrachloride in one domestic well (the Nigh well) northwest of the former facility. On behalf of the CCC/USDA, Argonne National Laboratory subsequently conducted a series of investigations to characterize the contamination (Argonne 2003, 2006a,b,c). Automatic, continuous monitoring of groundwater levels began in 2002 and is ongoing at six locations. The results have consistently indicated groundwater flow toward the north-northwest from the former CCC/USDA property to the Nigh property, then west-southwest from the Nigh property to the intermittent creek. Sitewide periodic groundwater and surface water sampling with analysis for volatile organic compounds (VOCs) began in 2008. Argonne's combined data indicate no significant downgradient extension of contamination since 2000. At present, the sampling is annual, as approved by the KDHE (2009) in response to a plan developed for the CCC/USDA (Argonne 2009). This document presents a plan for collecting indoor air samples in homes located along and adjacent to the defined extent of the carbon tetrachloride contamination. The plan was requested by the KDHE. Ambient air samples to represent the conditions along this pathway will also be taken. The purpose of the proposed work is to satisfy KDHE requirements and to collect additional data for assessing the risk to human health due to the potential upward migration of carbon tetrachloride and its primary degradation product (chloroform) into homes located in close proximity to the former grain storage facility, as well as along and within 100 ft laterally from the currently defined plume emanating from the former Everest facility. Investigation of the indoor air ...
Date: May 24, 2010
Creator: LaFreniere, L. M.
Partner: UNT Libraries Government Documents Department

[Elizabeth Simpson Cooper Memoir]

Description: Photocopy of Elizabeth Simpson Cooper's memoir about her childhood in Virginia and later her time in Kansas after moving westward with her family. In the text of her memoir, she describes her school days in Virginia, church, Cooper family history, "Bleeding Kansas" (the period of conflict over deciding if Kansas would be a free or a slave state), and the Civil War in Kansas as well as her personal encounters with Native Americans in Kansas.
Date: 1931-02-24/1932
Creator: Cooper, Elizabeth Simpson, 1840-
Partner: UNT Libraries Special Collections

Oral History Interview with Randolph Lockwood, August 24, 1974

Description: Interview with Randolph S. Lockwood regarding his experiences while stationed at Kaneohe Naval Air Station during the Japanese attack on Pearl Harbor and other installations on the island on December 7th, 1941. It also contains a list of corrections made to the interview for content regarding phrases that were initially mis-typed.
Date: August 24, 1974
Creator: Marcello, Ronald E. & Lockwood, Randolph S.
Partner: University of North Texas