Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “NEVADA”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 325 records · Page 18
All sourcesNASA NTRSDOE OSTI
DOE OSTI2012

Pahute Mesa Well Development and Testing Analyses for Wells ER-20-8 and ER-20-4, Nevada National Security Site, Nye County, Nevada

Wells ER-20-4 and ER-20-8 were drilled during fiscal year (FY) 2009 and FY 2010 (NNSA/NSO, 2011a and b). The closest underground nuclear test detonations to the area of investigation are TYBO (U-20y), BELMONT (U-20as), MOLBO (U-20ag), BENHAM (U-20c), and HOYA (U-20 be) (Figure 1-1). The TYBO, MOLBO, and BENHAM detonations had working points located below the regional water table. The BELMONT and HOYA detonation working points were located just above the water table, and the cavity for these detonations are calculated to extend below the water table (Pawloski et al., 2002). The broad purpose of Wells ER-20-4 and ER-20-8 is to determine the extent of radionuclide-contaminated groundwater, the geologic formations, groundwater geochemistry as an indicator of age and origin, and the water-bearing properties and hydraulic conditions that influence radionuclide migration. Well development and testing is performed to determine the hydraulic properties at the well and between other wells, and to obtain groundwater samples at the well that are representative of the formation at the well. The area location, wells, underground nuclear detonations, and other features are shown in Figure 1-1. Hydrostratigraphic cross sections A-A’, B-B’, C-C’, and D-D’ are shown in Figures 1-2 through 1-5, respectively.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2012

Corrective Action Decision Document for Corrective Action Unit 366: Area 11 Plutonium Valley Dispersion Sites Nevada National Security Site, Nevada

The purpose of this CADD is to identify and provide the rationale for the recommendation of corrective action alternatives (CAA) for the six CASs within CAU 366. Corrective action investigation (CAI) activities were performed from October 12, 2011, to May 14, 2012, as set forth in the Corrective Action Investigation Plan for Corrective Action Unit 366: Area 11 Plutonium Valley Dispersion Sites.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2011

Errata Sheet for the Closure Report for Corrective Action Unit 538: Spill Sites, Nevada Test Site, Nevada with ROTC-1, Revision 0

This Erratum is being issued to DOE/NV--1185 ROTC-1 for the CAU 538 Closure Report to correct three items. The original ROTC which was issued on November 30, 2011 corrected the Use Restriction for CAS 12-29-06 to remove a coordinate point from the Use Restriction. However, the ROTC contained three errors as follows: 1. The number of digits after the decimal place on the UR form was one while the map displayed two digits after the decimal place. The UR form and map were aligned as part of this Erratum so that only a single digit was shown after the decimal place. 2. On the figure (Figure 1) included with the UR form issued as part of ROTC-1, CAU 538 was incorrectly called out as CAU 583. This error was corrected as part of this Erratum. 3. The coordinates on the UR form were developed from NAD 27 while the coordinate system stated on the form was UTM, Zone 11, NAD 83 meters. The coordinates were corrected on the UR form, developed as part of this Erratum, to reflect the UTM, Zone 11, NAD 83 meters system.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2013

RCRA Permit for a Hazardous Waste Management Facility Permit Number NEV HW0101 Annual Summary/Waste Minimization Report Calendar Year 2012, Nevada National Security Site, Nevada

This report summarizes the U.S. Environmental Protection Agency (EPA) identification number of each generator from which the Permittee received a waste stream, a description and quantity of each waste stream in tons and cubic feet received at the facility, the method of treatment, storage, and/or disposal for each waste stream, a description of the waste minimization efforts undertaken, a description of the changes in volume and toxicity of waste actually received, any unusual occurrences, and the results of tank integrity assessments. This Annual Summary/Waste Minimization Report is prepared in accordance with Section 2.13.3 of Permit Number NEV HW0101, issued 10/17/10.

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗
DOE OSTI2014

Corrective Action Decision Document/Closure Report for Corrective Action Unit 105: Area 2 Yucca Flat Atmospheric Test Sites, Nevada National Security Site, Nevada, Revision 1, with ROTCs 1 and 2

The purpose of this Corrective Action Decision Document/Closure Report is to provide justification and documentation supporting the recommendation that no further corrective action is needed for CAU 105 based on the implementation of the corrective actions. Corrective action investigation (CAI) activities were performed from October 22, 2012, through May 23, 2013, as set forth in the Corrective Action Investigation Plan for Corrective Action Unit 105: Area 2 Yucca Flat Atmospheric Test Sites; and in accordance with the Soils Activity Quality Assurance Plan, which establishes requirements, technical planning, and general quality practices.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2014

Corrective Action Investigation Plan for Corrective Action Unit 568: Area 3 Plutonium Dispersion Sites Nevada National Security Site, Nevada

CAU 568 is a grouping of sites where there has been a suspected release of contamination associated with nuclear testing. This document describes the planned investigation of CAU 568, which comprises the following corrective action sites (CASs): (1) 03-23-17, S-3I Contamination Area; (2) 03-23-19, T-3U Contamination Area; (3) 03-23-20, Otero Contamination Area; (4) 03-23-22, Platypus Contamination Area; (5) 03-23-23, San Juan Contamination Area; and (6) 03-23-26, Shrew/Wolverine Contamination Area. These sites are being investigated because existing information on the nature and extent of potential contamination is insufficient to evaluate and recommend corrective action alternatives (CAAs). Additional information will be obtained by conducting a corrective action investigation before evaluating CAAs and selecting the appropriate corrective action for each CAS. The results of the field investigation will support a defensible evaluation of viable CAAs that will be presented in the investigation report.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2014

Post-Closure Report for Closed Resource Conservation and Recovery Act Corrective Action Units, Nevada National Security Site, Nevada for fiscal year 2013 (October 2012 - September 2013)

This report serves as the combined annual report for post-closure activities for the following closed Corrective Action Units (CAUs): CAU 90, Area 2 Bitcutter Containment; CAU 91, Area 3 U-3fi Injection Well; CAU 92, Area 6 Decon Pond Facility; CAU 110, Area 3 WMD U-3ax/bl Crater; CAU 111, Area 5 WMD Retired Mixed Waste Pits; and, CAU 112, Area 23 Hazardous Waste Trenches.

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗
DOE OSTI2014

Corrective Action Decision Document/Closure Report for Corrective Action Unit 571: Area 9 Yucca Flat Plutonium Dispersion Sites, Nevada National Security Site, Nevada, Revision 0 with ROTC 1

The purpose of this CADD/CR is to provide documentation and justification that no further corrective action is needed for the closure of CAU 571 based on the implementation of corrective actions. This includes a description of investigation activities, an evaluation of the data, and a description of corrective actions that were performed. The CAIP provides information relating to the scope and planning of the investigation. Therefore, that information will not be repeated in this document.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2014

Model Evaluation Report for Corrective Action Unit 98: Frenchman Flat, Nevada National Security Site, Nye County, Nevada, Revision 1

Model evaluation focused solely on the PIN STRIPE and MILK SHAKE underground nuclear tests’ contaminant boundaries (CBs) because they had the largest extent, uncertainty, and potential consequences. The CAMBRIC radionuclide migration experiment also had a relatively large CB, but because it was constrained by transport data (notably Well UE-5n), there was little uncertainty, and radioactive decay reduced concentrations before much migration could occur. Each evaluation target and the associated data-collection activity were assessed in turn to determine whether the new data support, or demonstrate conservatism of, the CB forecasts. The modeling team—in this case, the same team that developed the Frenchman Flat geologic, source term, and groundwater flow and transport models—analyzed the new data and presented the results to a PER committee. Existing site understanding and its representation in numerical groundwater flow and transport models was evaluated in light of the new data and the ability to proceed to the CR stage of long-term monitoring and institutional control.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2015

2014 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada National Security Site, Nye County, Nevada: Review of the Performance Assessments and Composite Analyses

This report summarizes the results and conclusions of the annual review of the performance assessments (PAs) and composite analyses (CAs) of the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs). The Area 3 and Area 5 RWMSs were issued Disposal Authorization Statements (DASs) in accordance with U.S. Department of Energy Order DOE O 435.1 “Radioactive Waste Management” (U.S. Department of Energy [DOE] 2001). The Area 3 RWMS and Area 5 RWMS DASs (DOE 1999a, 2000) require preparation of an annual summary report and a determination of the continuing adequacy of the PAs and CAs. The requirement to prepare an annual summary report is implemented in the Maintenance Plan for the PAs and CAs (National Security Technologies, LLC [NSTec] 2007a). The annual summary report is submitted to the DOE Office of Environmental Management for review and approval.

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗
DOE OSTI2016

Addendum to the Closure Report for Corrective Action Unit 411: Double Tracks Plutonium Dispersion (Nellis), Nevada Test and Training Range, Nevada, Revision 0

The Corrective Action Unit (CAU) 411 Closure Report (CR) was published in June 2016 (NNSA/NFO, 2016). The purpose of this addendum is to clarify language in the CR relating to the field instrument for the detection of low-energy radiation (FIDLER), provide the waste disposal documentation for waste generated during the corrective action investigation (CAI), and reference a letter from the U.S. Air Force (USAF) regarding the closure of CAU 411.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2017

Post-Closure Report for Closed Resource Conservation and Recovery Act Corrective Action Units, Nevada National Security Site, Nevada: For Calendar Year 2016, Revision 0

This report covers the reporting period calendar year 2016 and the fourth quarter of 2015 (October 2015 through December 2016). This change to the reporting periods (i.e., fiscal to calendar) is to gain efficiencies during report development and to better align with other environmental report schedules.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2017

Closure Report for Corrective Action Unit 568: Area 3 Plutonium Dispersion Sites Nevada National Security Site, Nevada, Revision 1

The purpose of this CR is to provide documentation and justification that no further corrective action is needed for the closure of CAU 568 based on the implementation of corrective actions. This includes a description of closure activities that were performed and an evaluation of the verification data. The CAP (NNSA/NFO, 2016a) and ROTC-1 (NNSA/NFO, 2016c) provide information relating to the selection of CAAs and the reasoning behind their selection. The CADD (NNSA/NFO, 2015) identifies the release sites that require additional corrective action and presents information supporting the selection of CAAs.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2018

Rainier Mesa/Shoshone Mountain Flow and Transport Model Report Nevada National Security Site, Nevada, Revision 1

The purpose of this report is to describe and present the latest CAI analyses for the Rainier Mesa/Shoshone Mountain (RM/SM) CAU and review their role in the broader, historical context of CAI activities at RM/SM. As described in Sections 1.4 and 1.5, the current work was initiated after specific concerns arose during a previous CAI phase, which eventually prompted a revision of the FFACO process and the adoption of an alternative modeling strategy (AMS) for CAI work at RM/SM. The remainder of this report will describe the CAI modeling activities conducted through 2017 under the revised FFACO process and AMS discussed above.

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗
DOE OSTI2018

E Tunnel Wastewater Disposal System Quarterly Monitoring Report Nevada National Security Site, Nevada Water Pollution Control Permit NEV 96021, Second Quarter 2018

This report includes the results of the E Tunnel Wastewater Disposal System (ETDS) inspections and monitoring for April, May and June 2018. Monitoring and sampling activities were performed in accordance with the requirements of Water Pollution Control Permit NEV 96021, Revision 1, effective October 1, 2013.

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗
DOE OSTI2018

Yucca Flat Well Development and Testing Analyses for Wells ER-3-3 and ER-4-1, Nevada National Security Site, Nye County, Nevada

This report documents the well development and testing (WDT) data and analysis of Wells ER-3-3 and ER-4-1 during fiscal year (FY) 2017. Wells ER-3-3 and ER-4-1 were constructed to evaluate possible radionuclides (RNs) in groundwater from nearby underground tests (UGTs), to provide hydrogeologic information to support refinement of the Yucca Flat hydrostratigraphic framework model (HFM) (BN, 2006), and to provide supplemental data to the Yucca Flat groundwater flow and contaminant transport model (N-I, 2013) to help address priority concerns and recommendations of the Yucca Flat External Peer Review Team. Of particular interest is the characterization of specific groundwater flow pathways (i.e., faults, fractured aquifers) along which RNs in groundwater could migrate from individual UGTs. Another important objective is to determine the hydraulic properties of the volcanic aquifers (VAs) and carbonate aquifers (CAs) in the former underground testing areas in Yucca Flat, and specifically in the areas proximal to existing UGTs.

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗