The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) formerly operated a grain storage facility at Milford, Nebraska. In May 2008, the CCC/USDA directed the Environmental Science Division of Argonne National Laboratory, as its technical consultant, to develop a work plan for a targeted investigation at the Milford site. The purpose of the targeted investigation is to assess the current extent and configuration of the carbon tetrachloride plume downgradient from the former CCC/USDA facility and proximal to the banks of the Big Blue River, which borders the area of concern to the east, southeast, and northeast. In 1995, carbon tetrachloride contamination was detected by the Nebraska Department of Health and Human Services in a private drinking water well and a livestock well 1.25 mi south of Milford (Figure 1.1). The Trojan drinking water well is located directly downgradient (approximately 300 ft east) of the former CCC/USDA facility. Low levels of carbon tetrachloride contamination were also found in the Troyer livestock well, approximately 1,200 ft north of the former CCC/USDA facility.

In early 2005, Argonne National Laboratory conducted an Engineering Evaluation/Cost Analysis (EE/CA; Argonne 2005b) to address carbon tetrachloride contamination identified in groundwater and surface water at Murdock, Nebraska, approximately 22 mi east-northeast of Lincoln (Figure 1.1). The EE/CA study was performed for the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA), as the technical basis for a proposed removal action for the Murdock site. The EE/CA was conducted in compliance with an Administrative Order on Consent issued for Murdock by the U.S. Environmental Protection Agency (EPA 1991). Three removal action alternatives were examined through the use of site-specific data and predictive simulations of groundwater flow and contaminant transport performed with calibrated numerical models. The alternatives were evaluated individually and compared against performance criteria established under the National Oil and Hazardous Substances Pollution Contingency Plan and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). On the basis of these evaluations, an alternative employing phytoremediation in conjunction with seasonal groundwater extraction and treatment by spray irrigation was recommended by the CCC/USDA to permanently reduce the carbon tetrachloride contaminant levels in groundwater and surface water at the site. The proposed alternative is being implemented in cooperation with the EPA. Under …

On March 9, 2001, representatives of the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) and Argonne National Laboratory met with representatives from a number of federal and Nebraska state agencies (the wetlands agencies; see Table 1.1) to discuss the CCC/USDA's proposed aquifer remediation and wetlands restoration project at Utica, Nebraska. As part of those discussions, Argonne outlined preliminary recommendations for a long-term monitoring program to verify and document (1) the performance of the spray irrigation treatment process for the removal of carbon tetrachloride from extracted groundwater, (2) the geochemical quality of the extracted and treated groundwater delivered to the wetlands, and (3) the hydrogeologic and inorganic geochemical impacts of the groundwater delivery. General activities recommended included the following: (1) Periodic sampling and analysis for volatile organic compounds (VOCs) in groundwater extracted at each pumping well and in water discharged from the spray irrigation treatment units. (2) Periodic sampling of groundwater from each pumping well and directly from the sprinkler discharge, for analysis for selected inorganic water quality parameters. The CCC/USDA and Argonne also requested at the March 2001 meeting that the wetlands agencies accept responsibility for developing the ecological and biological monitoring programs needed to meet environmental …

Final Cobra Run - Army RC Transformation Greenlief NE

Final Cobra Run - Army RC Transformation Kearney NE

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COBRA Program - Navy Reserve Centers - Lincoln, NE

COBRA Program - RC Transformation in Nebraska (AFRC McCook, NE)

COBRA Program - RC Transformation in Nebraska (AFRC Kearney NE)

COBRA Program - RC Transformation in Nebraska (AFRC Greenlief NE)

COBRA Program - RC Transformation in Nebraska (AFRC Columbus, NE)

COBRA Program - RC Transformation in Nebraska (AFRC Beatrice, NE)

Final Cobra Run - Army RC Transformation Beatrice NE

Final Cobra Run - Army RC Transformation Columbus NE

2005 BRAC Commission Final COBRA Run - DON-0022, C5, V6.10, 22APR05 - 76 - Navy Reserve Centers\Navy Reserve Centers - Lincoln, NE.

2005 BRAC Commission Final COBRA Run - AFRC Beatrice, NE_QC_Checked - 30 - RC Transformation in Nebraska

2005 BRAC Commission Final COBRA Run - AFRC Columbus, NE_QC_Checked - 30 - RC Transformation in Nebraska\AFRC Columbus NE

2005 BRAC Commission Final COBRA Run - AFRC Greenlief_NE_QC_Checked - 30 - RC Transformation in Nebraska\AFRC Greenlief NE

2005 BRAC Commission Final COBRA Run - AFRC Kearney NE_QC_Checked - 30 - RC Transformation in Nebraska\AFRC Kearney NE

2005 BRAC Commission Final COBRA Run - AFRC McCook, NE_QC_Checked - 30 - RC Transformation in Nebraska\AFRC McCook NE

2005 BRAC Commission Final COBRA Run - AFRC Beatrice, NE_QC_Checked - 30 - RC Transformation in Nebraska

2005 BRAC Commission Final COBRA Run - AFRC Columbus, NE_QC_Checked - 30 - RC Transformation in Nebraska

2005 BRAC Commission Final COBRA Run - AFRC Greenlief_QC_Checked - 30 - RC Transformation in Nebraska