Western Groundwater Operable Unit Remedial Investigation Feasibility Study
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Western Groundwater Operable Unit Remedial Investigation Feasibility Study
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Author :
language : en
Publisher:
Release Date : 1999
Western Groundwater Operable Unit Remedial Investigation Feasibility Study written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Groundwater categories.
Feasibility Study Report For The 200 Zp 1 Groundwater Operable Unit
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Author :
language : en
Publisher:
Release Date : 2008
Feasibility Study Report For The 200 Zp 1 Groundwater Operable Unit written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
The Hanford Site, managed by the U.S. Department of Energy (DOE), encompasses approximately 1,517 km2 (586 mi2) in the Columbia Basin of south-central Washington State. In 1989, the U.S. Environmental Protection Agency (EPA) placed the 100, 200, 300, and 1100 Areas of the Hanford Site on the 40 Code of Federal Regulations (CFR) 300, 'National Oil and Hazardous Substances Pollution Contingency Plan' National Contingency Plan [NCPD], Appendix B, 'National Priorities List' (NPL), pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). The 200 Areas NPL sites consist of the 200 West and 200 East Areas (Figure 1-1). The 200 Areas contain waste management facilities, inactive irradiated fuel reprocessing facilities, and the 200 North Area (formerly used for interim storage and staging of irradiated fuel). Several waste sites in the 600 Area, located near the 200 Areas, also are included in the 200 Areas NPL site. The 200 Areas NPL site is in a region referred to as the 'Central Plateau' and consists of approximately 700 waste sites, excluding sites assigned to the tank farm waste management areas (WMAs). The 200-ZP-1 Groundwater Operable Unit (OU) consists of the groundwater located under the northern portion of the 200 West Area. Waste sources that contributed to the 200-ZP-1 OU included cribs and trenches that received liquid and/or solid waste in the past from the Z Plant and T Plant aggregate areas, WMA-T, WMA-TX/TY, and the State-Approved Land Disposal Site (SALDS). This feasibility study (FS) for the 200-ZP-1 Groundwater OU was prepared in accordance with the requirements of CERCLA decision documents. These decision documents are part of the Administrative Record for the selection of remedial actions for each waste site and present the selected remedial actions that are chosen in accordance with CERCLA, as amended by the Superfund Amendments and Reauthorization Act of 1986, and to the extent practicable, the NCP. This FS conforms to the conditions set forth in the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) (Ecology et al. 2003) and amendments, signed by the Washington State Department of Ecology (Ecology), EPA, and DOE Richland Operations Office (RL). This also includes Tri-Party Agreement Milestone M-015-00C for completing all 200 Area non-tank farm OU pre-Record of Decision (ROD) documents on or before December 31, 2011. This FS supports the final remedy selection for the 200-ZP-1 OU, as described in the Remedial Investigation/Feasibility Study Work Plan for the 200-ZP-1 Groundwater Operable Unit (referred to as the 200-ZP-1 RI/FS work plan) (DOE/RL-2003-55), as agreed upon by RL and EPA. Tri-Party Agreement Milestone M-015-48B required Draft A of the 200-ZP-1 OU FS and proposed plan to be transmitted to EPA by September 30, 2007. As agreed to with EPA in the 200 Area Unit Managers Meeting Groundwater Operable Unit Status (FH-0503130), the baseline risk assessment (BRA) was delayed from inclusion in the remedial investigation (RI) report and is completed and documented in this FS. The Remedial Investigation Report for 200-ZP-1 Groundwater Operable Unit (referred to as the 200-ZP-1 RI report) (DOE/RL-2006-24) included an evaluation of human health and ecological risks and hazards. The RI report identified the radiological and chemical contaminants of potential concern (COPCs) that represent the primary risks to human health and the environment. The complete risk assessment in this FS incorporates additional analytical data from the unconfined aquifer that were obtained during or after preparation of the RI report, particularly for carbon tetrachloride and technetium-99. This FS also includes the initial results from an ongoing study of technetium-99 contamination near WMA-T, the sampling of new wells near the 216-W-LC laundry waste crib and T Plant, updated Hanford vadose zone fate and transport modeling, and groundwater particle-tracking analysis. The purpose of this FS is to develop and evaluate alternatives for remediation of the groundwater in the 200-ZP-1 OU. The alternatives considered provide a range of potential response actions (i.e., no action; institutional controls and monitored natural attenuation [MNA]; and pump-and-treat with MNA, flow-path control, and institutional controls) that are appropriate to address site-specific conditions. The alternatives are evaluated against seven of the nine CERCLA evaluation criteria defined in Guidance for Conducting Remedial Investigations and Feasibility Studies Under CERCLA (EPA/540/G-891004). The remaining two CERCLA criteria will be formally assessed during the public comment period. The FS evaluation serves as the basis for identifying a remedy to mitigate potential risks to human health and the environment. A preferred alternative (or alternatives) will be presented to the public for review and comment in the proposed plan.
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Author :
language : en
Publisher:
Release Date : 14??
written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 14?? with categories.
Basewide Groundwater Operable Unit Groundwater Operable Unit Remedial Investigation Feasibility Study Report
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Author :
language : en
Publisher:
Release Date : 1994
Basewide Groundwater Operable Unit Groundwater Operable Unit Remedial Investigation Feasibility Study Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
This document presents the Remedial Investigation/Feasibility Study (RI/FS) for the Groundwater Operable Unit (GW OU) at McClellan Air Force Base (McClellan AFB). The RI/FS is one step in the GW OU, which is intended to develop an interim remedial action for groundwater contamination at McClellan AFB. The preferred interim remedial action for the GW OU is containment of the 0.000006 risk target volume, treatment using air stripping with vapor phase carbon and LGAC polishing on the east side, the existing GWTP on the west side, and injection of the treated water.
70 638
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Author :
language : en
Publisher:
Release Date : 1999
70 638 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Remedial Investigation Feasibility Study Work Plan For The 200 Up 1 Groundwater Operable Unit
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Author : United States. Department of Energy
language : en
Publisher:
Release Date : 1993*
Remedial Investigation Feasibility Study Work Plan For The 200 Up 1 Groundwater Operable Unit written by United States. Department of Energy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993* with categories.
Remedial Investigation Feasibility Study Work Plan For The 200 Po 1 Groundwater Operable Unit
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Author : United States. Department of Energy. Richland Operations Office
language : en
Publisher:
Release Date : 2007
Remedial Investigation Feasibility Study Work Plan For The 200 Po 1 Groundwater Operable Unit written by United States. Department of Energy. Richland Operations Office and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Final Remedial Investigation Feasibility Study Work Plan For The Perimeter Groundwater Operable Unit
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Author :
language : en
Publisher:
Release Date : 2002
Final Remedial Investigation Feasibility Study Work Plan For The Perimeter Groundwater Operable Unit written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Groundwater categories.
Feasibility Study For Remedial Action For The Groundwater Operable Units At The Chemical Plant Area And The Ordnance Works Area Weldon Spring Missouri
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Author :
language : en
Publisher:
Release Date : 1999
Feasibility Study For Remedial Action For The Groundwater Operable Units At The Chemical Plant Area And The Ordnance Works Area Weldon Spring Missouri written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
The U.S. Department of Energy (DOE) and the U.S. Department of Army (DA) are conducting an evaluation to identify the appropriate response action to address groundwater contamination at the Weldon Spring Chemical Plant (WSCP) and the Weldon Spring Ordnance Works (WSOW), respectively. The two areas are located in St. Charles County, about 48 km (30 rni) west of St. Louis. The groundwater operable unit (GWOU) at the WSCP is one of four operable units being evaluated by DOE as part of the Weldon Spring Site Remedial Action Project (WSSRAP). The groundwater operable unit at the WSOW is being evaluated by the DA as Operable Unit 2 (OU2); soil and pipeline contamination are being managed under Operable Unit 1 (OU1). Remedial activities at the WSCP and the WSOW are being conducted in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Consistent with DOE policy, National Environmental Policy Act (NEPA) values have been incorporated into the CERCLA process. A remedial investigation/feasibility study (RI/FS) work plan summarizing initial site conditions and providing site hydrogeological and exposure models was published in August of 1995 (DOE 1995). The remedial investigation (RI) and baseline risk assessment (BRA) have also recently been completed. The RI (DOE and DA 1998b) discusses in detail the nature, extent, fate, and transport of groundwater and spring water contamination. The BRA (DOE and DA 1998a) is a combined baseline assessment of potential human health and ecological impacts and provides the estimated potential health risks and ecological impacts associated with groundwater and springwater contamination if no remedial action were taken. This feasibility study (FS) has been prepared to evaluate potential options for addressing groundwater contamination at the WSCP and the WSOW. A brief description of the history and environmental setting of the sites is presented in Section 1.1, key information relative to the nature and extent of contamination is presented in Section 1.2, and the results of the BRA are summarized in Section 1.3. The objective of this FS is discussed in Section 1.4, and preliminary remediation goals are identified in Section 1.5. The organization of the remaining chapters of this FS is outlined in Section 1.6.
Remedial Investigation
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Author :
language : en
Publisher:
Release Date : 1994
Remedial Investigation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
This work plan identifies the objectives, tasks, and schedule for conducting a Remedial Investigation/Feasibility Study for the 200-UP-1 Groundwater Operable Unit in the southern portion of the 200 West Groundwater Aggregate Area of the Hanford Site. The 200-UP-1 Groundwater Operable Unit addresses contamination identified in the aquifer soils and groundwater within its boundary, as determined in the 200 West Groundwater Aggregate Area Management Study Report (AAMSR) (DOE/RL 1992b). The objectives of this work plan are to develop a program to investigate groundwater contaminants in the southern portion of the 200 West Groundwater Aggregate Area that were designated for Limited Field Investigations (LFIs) and to implement Interim Remedial Measures (IRMs) recommended in the 200 West Groundwater AAMSR. The purpose of an LFI is to evaluate high priority groundwater contaminants where existing data are insufficient to determine whether an IRM is warranted and collect sufficient data to justify and implement an IRM, if needed. A Qualitative Risk Assessment (QRA) will be performed as part of the LFI. The purpose of an IRM is to develop and implement activities, such as contaminant source removal and groundwater treatment, that will ameliorate some of the more severe potential risks of groundwater contaminants prior to the RI and baseline Risk Assessment (RA) to be conducted under the Final Remedy Selection (FRS) at a later date. This work plan addresses needs of a Treatability Study to support the design and implementation of an interim remedial action for the Uranium-99{Tc}-Nitrate multi-contaminant IRM plume identified beneath U Plant.