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Closure Report for Corrective Action Unit 127: Areas 25 and 26 Storage Tanks, Nevada Test Site, Nevada

Description: CAU 127, Areas 25 and 26 Storage Tanks, consists of twelve CASs located in Areas 25 and 26 of the NTS. The closure alternatives included no further action, clean closure, and closure in place with administrative controls. The purpose of this Closure Report is to provide a summary of the completed closure activities, documentation of waste disposal, and analytical data to confirm that the remediation goals were met.
Date: February 1, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Errata Sheet for the Corrective Action Plan for Corrective Action Unit 166: Storage Yards and Contaminated Materials, Nevada Test Site, Nevada

Description: On Page 6, in Section 2.1.1.4, fourth paragraph, third sentence, ''FAL'' should be ''PAL''. The sentence should read, ''TPH was also present at concentrations above the PAL in all three wax samples that were analyzed for TPH''.
Date: December 21, 2007
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nevada Test Site 2007 Data Report: Groundwater Monitoring Program Area 5 Radioactive Waste Management Site

Description: This report is a compilation of the groundwater sampling results from three monitoring wells located near the Area 5 Radioactive Waste Management Site (RWMS) at the Nevada Test Site (NTS), Nye County, Nevada, for calendar year 2007. The NTS is an approximately 3,561 square kilometer (1,375 square mile) restricted-access federal installation located approximately 105 kilometers (65 miles) northwest of Las Vegas, Nevada (Figure 1). Pilot wells UE5PW-1, UE5PW-2, and UE5PW-3 are used to monitor the… more
Date: January 1, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Closure Report for Corrective Action Unit 151: Septic Systems and Discharge Area, Nevada Test Site, Nevada

Description: Corrective Action Unit (CAU) 151 is identified in the Federal Facility Agreement and Consent Order (FFACO) as Septic Systems and Discharge Area. CAU 151 consists of the following eight Corrective Action Sites (CASs), located in Areas 2, 12, and 18 of the Nevada Test Site, approximately 65 miles northwest of Las Vegas, Nevada: (1) CAS 02-05-01, UE-2ce Pond; (2) CAS 12-03-01, Sewage Lagoons (6); (3) CAS 12-04-01, Septic Tanks; (4) CAS 12-04-02, Septic Tanks; (5) CAS 12-04-03, Septic Tank; (6) CAS… more
Date: April 1, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Closure Report for Corrective Action Unit 224: Decon Pad and Septic Systems, Nevada Test Site, Nevada

Description: Corrective Action Unit (CAU) 224 is located in Areas 02, 03, 05, 06, 11, and 23 of the Nevada Test Site, which is situated approximately 65 miles northwest of Las Vegas, Nevada. CAU 224 is listed in the Federal Facility Agreement and Consent Order (FFACO) of 1996 as Decon Pad and Septic Systems and is comprised of the following nine Corrective Action Sites (CASs): CAS 02-04-01, Septic Tank (Buried); CAS 03-05-01, Leachfield; CAS 05-04-01, Septic Tanks (4)/Discharge Area; CAS 06-03-01, Sewage La… more
Date: October 1, 2007
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Closure Report for Corrective Action Unit 121: Storage Tanks and Miscellaneous Sites, Nevada Test Site, Nevada

Description: Corrective Action Unit (CAU) 121 is identified in the Federal Facility Agreement and Consent Order (FFACO) (1996, as amended February 2008) as Storage Tanks and Miscellaneous Sites. CAU 121 consists of the following three Corrective Action Sites (CASs) located in Area 12 of the Nevada Test Site, which is approximately 65 miles northwest of Las Vegas, Nevada: (1) CAS 12-01-01, Aboveground Storage Tank; (2) CAS 12-01-02, Aboveground Storage Tank; and (3) CAS 12-22-26, Drums; 2 AST's. CAU 121 clos… more
Date: September 1, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Post-Closure Inspection Report for Corrective Action Unit 92: Area 6 Decon Pond Facility

Description: This Post-Closure Inspection Report provides an analysis and summary of inspections for Corrective Action Unit (CAU) 92, Area 6 Decon Pond Facility. CAU 92 was closed according to the Resource Conservation and Recovery Act (RCRA) Part B Operational Permit (Nevada Division of Environmental Protection [NDEP], 1995) and the Federal Facility Agreement and Consent Order (FFACO) of 1996 (FFACO, 1996; as amended January 2007). Closure activities were completed on February 16, 1999, and the Closure Rep… more
Date: March 1, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Letter Report to Address Comments on the Closure Report for Corrective Action Unit 224: Decon Pad and Septic Systems, Nevada Test Site, Nevada, Revision 0, March 2008

Description: The Closure Report (CR) for Corrective Action Unit (CAU) 224, Decon Pad and Septic Systems, was approved by the Nevada Department of Environmental Protection (NDEP) on November 01, 2007. The approval letter contained the following two comments: Comment 1--For 06-05-01, 06-17-04, 06-23-01 provide evidence that the 6 inch VCP pipe originating from building CP-2 is no longer active and sealed to prevent possible future contamination. Comment 2--For the area that includes 06-03-01, provide evidence… more
Date: March 17, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cleanup Summary Report for the Defense Threat Reduction Agency Fiscal Year 2007, Task 6.7, U12u-Tunnel (Legacy Site), Nevada Test Site, Nevada

Description: This letter serves as notice of completion for cleanup of the U12u-Tunnel (Legacy Site) as specified in the Defense Threat Reduction Agency (DTRA) Fiscal Year 2007 Statement of Work, Task 6.7. The U12u-Tunnel Legacy Site is located near the intersection of the U12u-Tunnel access road and the U12n-Tunnel access road in Area 12 of the Nevada Test Site (see Figure 1). The site encompasses 1.2 acres and was used to store miscellaneous mining equipment and materials that were used to support DTRA te… more
Date: April 28, 2008
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Completion Report for Well ER-EC-15 Corrective Action Units 101 and 102: Central and Western Pahute Mesa

Description: Well ER-EC-15 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Restoration Project at the Nevada National Security Site (formerly known as the Nevada Test Site), Nye County, Nevada. The well was drilled in October and November 2010, as part of the Pahute Mesa Phase II drilling program. The primary purpose of the well was to provide detailed hydrogeologic information in the Tertiary volcanic section … more
Date: May 31, 2011
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrective Action Decision Document/Closure Report for Corrective Action Unit 383: Area E-Tunnel Sites, Nevada Test Site

Description: This Corrective Action Decision Document/Closure Report (CADD/CR) was prepared by the Defense Threat Reduction Agency (DTRA) for Corrective Action Unit (CAU) 383, Area 12 E-Tunnel Sites, which is the joint responsibility of DTRA and the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO). This CADD/CR is consistent with the requirements of the Federal Facility Agreement and Consent Order (FFACO) agreed to by the State of Nevada, the DOE, and t… more
Date: March 15, 2010
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Post-Closure Report for Closed Resource Conservation and Recovery Act Corrective Action Units, Nevada National Security Site, Nevada, For Fiscal Year 2010

Description: This report serves as the combined annual report for post-closure activities for the following closed Corrective Action Units (CAUs): (1) CAU 90, Area 2 Bitcutter Containment; (2) CAU 91, Area 3 U-3fi Injection Well; (3) CAU 92, Area 6 Decon Pond Facility; (4) CAU 110, Area 3 WMD U-3ax/bl Crater; and (5) CAU 112, Area 23 Hazardous Waste Trenches. The locations of the sites are shown in Figure 1. This report covers fiscal year 2010 (October 2009-September 2010). The post-closure requirements for… more
Date: January 26, 2011
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrective Action Plan for Corrective Action Unit 562: Waste Systems, Nevada National Security Site, Nevada

Description: This Corrective Action Plan has been prepared for Corrective Action Unit (CAU) 562, Waste Systems, in accordance with the Federal Facility Agreement and Consent Order (1996; as amended March 2010). CAU 562 consists of 13 Corrective Action Sites (CASs) located in Areas 2, 23, and 25 of the Nevada National Security Site. Site characterization activities were performed in 2009 and 2010, and the results are presented in Appendix A of the Corrective Action Decision Document for CAU 562. The scope of… more
Date: April 30, 2011
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Post-Closure Evaluation of the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada National Security Site in Support of the Site-Wide Environmental Impact Statement

Description: The post-closure performance of the Area 3 Radioactive Waste Management Site (RWMS) and Area 5 RWMS are evaluated for the Site-Wide Environmental Impact Statement using current performance assessment and composite analysis methods and models. Two alternatives with different future waste volumes and inventories are evaluated. The No Action Alternative evaluates the inventory disposed through fiscal year (FY) 2010 plus an additional 4.5E5 cubic meters (m3) (1.59E7 cubic feet [ft3]) of waste dispo… more
Date: April 26, 2011
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nevada National Security Site 2011 Waste Management Monitoring Report, Area 3 and Area 5 Radioactive Waste Management Site

Description: Environmental monitoring data are collected at and around the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) at the Nevada National Security Site (NNSS). These data are associated with radiation exposure, air, groundwater, meteorology, and vadose zone. This report summarizes the 2011 environmental data to provide an overall evaluation of RWMS performance and to support environmental compliance and performance assessment (PA) activities. Some of these data (e.g., radiation exposure… more
Date: July 31, 2012
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Well Completion Report for Well ER-20-11, Corrective Action Units 101 and 102: Central and Western Pahute Mesa

Description: Well ER-20-11 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Management Operations Underground Test Area (UGTA) Activity at the Nevada National Security Site (formerly Nevada Test Site), Nye County, Nevada. The well was drilled in September 2012 as part of the Central and Western Pahute Mesa Corrective Action Unit Phase II drilling program. Well ER-20-11 was constructed to further investigate the … more
Date: February 27, 2013
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Completion Report for Well ER-20-4 Corrective Action Units 101 and 102: Central and Western Pahute Mesa

Description: Well ER-20-4 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Restoration Project at the Nevada National Security Site, Nye County, Nevada. The well was drilled in August and September 2010 as part of the Pahute Mesa Phase II drilling program. The primary purpose of the well was to investigate the possibility of radionuclide transport from up-gradient underground nuclear tests conducted in central P… more
Date: April 30, 2011
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrective Action Decision Document/Closure Report for Corrective Action Unit 476: Area 12 T-Tunnel Muckpile, Nevada Test Site

Description: This Corrective Action Decision Document (CADD)/Closure Report (CR) was prepared by the Defense Threat Reduction Agency (DTRA) for Corrective Action Unit (CAU) 476, Area 12 T-Tunnel Muckpile. This CADD/CR is consistent with the requirements of the Federal Facility Agreement and Consent Order (FFACO) agreed to by the State of Nevada, the U.S. Department of Energy, and the U.S. Department of Defense. Corrective Action Unit 476 is comprised of one Corrective Action Site (CAS): • 12-06-02, Muckpile… more
Date: March 15, 2010
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Completion Report for Well ER-EC-13 Corrective Action Units 101 and 102: Central and Western Pahute Mesa

Description: Well ER-EC-13 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office, in support of the Nevada Environmental Restoration Project at the Nevada National Security Site (formerly Nevada Test Site), Nye County, Nevada. The well was drilled in October 2010 as part of the Pahute Mesa Phase II drilling program. A main objective was to provide detailed hydrogeologic information for the Fortymile Canyon composite unit hydrostratigraphic unit in the Tim… more
Date: May 31, 2011
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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