Results of Temporary Shutdown Testing and Groundwater Pump-Testing at Agra, Kansas, February-September 2016 and march 2017, and Assessment of Groundwater and Contaminant Migration
- Argonne National Lab. (ANL), Argonne, IL (United States)
In 2005, the Commodity Credit Corporation/U.S. Department of Agriculture (CCC/USDA) conducted a comprehensive investigation of potential contaminant source areas on, and in the vicinity of, the former CCC/USDA grain storage facility in Agra, Kansas (Argonne 2006). The data collected during this investigation identified three primary source areas for carbon tetrachloride contamination. One source is located on the former CCC/USDA property, and the other two (western and eastern) sources are located on adjacent property owned by Pro-Ag Marketing. The soil source located at the western end of the Pro-Ag property has been identified as the sole source of carbon tetrachloride contamination to the groundwater in this portion of the Agra site, and is not associated with any grain storage activities on the former CCC/USDA property. In 2008-2009, to address the carbon tetrachloride contamination detected on its former property, the CCC/USDA initiated source area cleanup as an interim measure (IM). The cleanup employs five large-diameter boreholes (LDBs) that were excavated by auger drilling. The purposes of these borings were to (1) physically remove soils impacted by carbon tetrachloride from the most contaminated area for treatment by onsite land farming and (2) provide locations for the installation of coupled soil vapor extraction (SVE) and air sparging (AS) wells to facilitate in-situ treatment of the carbon tetrachloride in the soils and underlying groundwater. With the approval of the KDHE, operation of the SVE/AS systems began in May 2009, and has generally continued with minimal interruption since that time. Land farming operations to treat contaminated soil excavated from the LDBs were successfully completed in October 2010.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- U.S. Department of Agriculture (USDA)
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1490806
- Report Number(s):
- ANL/EVS/AGEM/TR-18-03; 146456
- Country of Publication:
- United States
- Language:
- English
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