Final Draft Work Plan for an Engineering Evaluation/Cost Analysis to Support the Risk-Based Approach to Remediation at Site ST-27, Charleston Air Force Base, Charleston, South Carolina

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ISBN 13 :
Total Pages : 157 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Final Draft Work Plan for an Engineering Evaluation/Cost Analysis to Support the Risk-Based Approach to Remediation at Site ST-27, Charleston Air Force Base, Charleston, South Carolina by :

Download or read book Final Draft Work Plan for an Engineering Evaluation/Cost Analysis to Support the Risk-Based Approach to Remediation at Site ST-27, Charleston Air Force Base, Charleston, South Carolina written by and published by . This book was released on 1994 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan prepared by Parsons Engineering Science, Inc. (Parsons ES) describes the scope of work required for the collection and analysis of data to complete an engineering evaluation/cost analysis (BE/CA) to support a risk-based remediation decision for soil and groundwater contaminated with fuel hydrocarbons at Installation Restoration Program (lRP) Site ST-27 located at Charleston Air Force Base (AFB), Charleston, South Carolina. Soil and groundwater at Site ST-27 were impacted by petroleum hydrocarbons as a result of a leaking JP-4 jet fuel underground storage tank (UST). The site is located adjacent to aircraft maintenance hangar Building 575. This work plan is equivalent to a treatability study test design (TSTD) for field testing to support the risk-based approach for remediation of Site ST-27. This innovative technology is sponsored by the Air Force Center for Environmental Excellence (AFCEE) at Brooks AFB, Texas under contract F41624-93-C-8044, "Risk- Based Approach to Fuel Spill Remediation." The Site ST-27 risk-based field test and evaluation is a component of a multi site initiative being sponsored by AFCEE to demonstrate how quantitative fate and transport calculations and risk evaluation based on site-specific data can be integrated to quickly determine the type and magnitude of remedial action required at a site to minimize contaminant migration and receptor risks.

Draft Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Pumphouse Number 2. Malmstrom Air Force Base, Great Falls, Montana

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ISBN 13 :
Total Pages : 139 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Draft Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Pumphouse Number 2. Malmstrom Air Force Base, Great Falls, Montana by :

Download or read book Draft Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Pumphouse Number 2. Malmstrom Air Force Base, Great Falls, Montana written by and published by . This book was released on 1994 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan was prepared by Engineering-Science, Inc. (ES) and describes the scope of work required for the collection and analysis of data to complete an engineering evaluation/cost analysis (EE/CA) in support of a risk-based remediation decision for soil and ground water contaminated with fuel hydrocarbons at Pumphouse #2 at Malmstrom Air Force Base (AFB), Great Falls, Montana. Under the basewide Installation Restoration Program (IRP), Pumphouse #2 is a portion of Site PS-3 and may be referred to as such in referenced documents used in preparation of this work plan. This work plan is the equivalent of a treatability study test design (TSTD) for the field test of the risk-based approach to remediation at Pumphouse #2. This innovative technology is sponsored by the Air Force Center for Environmental Excellence (AFCEE) at Brooks AFB, Texas, under contract F41624-93-C-8044, "Risk-Based Approach to Fuel Spill Remediation." The Pumphouse #2 demonstration is a component of a multi-site initiative being sponsored by AFCEE to demonstrate how quantitative fate and transport calculations and risk information based on site-specific data can be integrated to quickly determine the type and magnitude of remedial action required at a site to minimize contaminant migration and receptor risks.

Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Site ST14

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ISBN 13 :
Total Pages : 125 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Site ST14 by :

Download or read book Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Site ST14 written by and published by . This book was released on 1994 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan was prepared by Engineering-Science, Inc. (ES) and describes the scope of work required for the collection and analysis of data to complete an engineering evaluation/cost analysis (BE/CA) in support of a risk-based remediation decision for soil and ground water contaminated with JP-4 fuel hydrocarbons at Site STl4 at Carswell Air Force Base (AFB), Fort Worth, Texas. Site STl4 consists of two separate sites: Site STl4A, the Fuel Loading Area, and Site STl4B, the petroleum, oil, and lubricant (POL) tank farm. This work plan is the equivalent of a treatability study test design (TSTD) for the field test of the risk-based approach for the remediation of Site ST 14. This innovative technology demonstration is sponsored by the Air Force Center for Environmental Excellence (AFCEE) at Brooks AFB, Texas, under contract F41624-93-C-8044, "Risk-Based Approach to Fuel Spill Remediation." The Site STl4 demonstration is a component of a multi-site initiative being sponsored by AFCEE to demonstrate how quantitative fate and transport calculations and risk information based on site-specific data can be integrated to quickly determine the type and magnitude of remedial action required at a site to minimize contaminant migration and receptor risks.

Final Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Area D, Ellsworth Air Base, Rapid City, South Dakota

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ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Final Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Area D, Ellsworth Air Base, Rapid City, South Dakota by :

Download or read book Final Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Risk-Based Approach to Remediation at Area D, Ellsworth Air Base, Rapid City, South Dakota written by and published by . This book was released on 1994 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan was prepared by Engineering Science, Inc. (ES) and describes the scope of work required for the collection and analysis of data to complete an engineering evaluation/cost analysis (EE/CA) in support of a risk-based remediation decision for soil and ground water contaminated with fuel hydrocarbons at Area D Bulk Fuel Storage (Area D) at Ellsworth Air Force Base (AFB), Rapid City, South Dakota. Area D, a petroleum, oil, and lubricant (POL) tank farm, is part of the base-wide fuel distribution system. This work plan is the equivalent of a treatability study test design (TSTD) for the field test of the risk-based approach to the remediation of Area D. This innovative technology is sponsored by the Air Force Center for Environmental Excellence (AFCEE) at Brooks AFB, under contract F41624-93-C-8044, "Risk-Based Approach to Fuel Spill Remediation." The Area D demonstration is a component of a multisite initiative being sponsored by AFCEE to demonstrate how quantitative fate and transport calculations and risk information based on site-specific data can be integrated to quickly determine the type and magnitude of remedial action required at a site to minimize contaminant migration and receptor risks.

Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option at the Former Fire Protection Training Area No. 4, Pope Air Force Base, Fayetteville, North Carolina

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ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option at the Former Fire Protection Training Area No. 4, Pope Air Force Base, Fayetteville, North Carolina by :

Download or read book Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option at the Former Fire Protection Training Area No. 4, Pope Air Force Base, Fayetteville, North Carolina written by and published by . This book was released on 1995 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan, prepared by Parsons Engineering Science, Inc. (Parsons ES), presents the scope of work required for the collection of data necessary to conduct an engineering evaluation/cost analysis (EE/CA) for remediation of groundwater contaminated with petroleum products at the former Fire Protection Training Area (FPTA) No. 4 located at Pope Air Force Base (AFB), Fayetteville, North Carolina. Several remedial options will be evaluated during the EE/CA possibly including continued free product removal; groundwater extraction, treatment, and reinjection (i.e., pump and treat); air sparging; and natural contaminant attenuation (intrinsic remediation) with long-term monitoring. All hydrogeologic and groundwater chemical data necessary to evaluate the various remedial options will be collected under this program. However, this work plan is oriented toward the collection of hydrogeologic data to be used in support of intrinsic remediation for restoration of fuel-hydrocarbon-contaminated groundwater. When applicable, site-specific information may be obtained from previous studies conducted at Pope AFB.

Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option

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ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option by :

Download or read book Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option written by and published by . This book was released on 1993 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan, prepared by Engineering-Science, Inc. (ES), presents the scope of work required for the collection of data necessary to conduct an engineering evaluation/cost analysis (EE/CA) for remediation of groundwater contaminated with JP-4 jet fuel at fuel pumping station 950 at site SS27/XYZ located at Dover Air Force Base (AFB), Delaware. Several remedial options will be evaluated during the EE/CA, including free product removal; groundwater extraction, treatment, and reinjection (i.e., pump and treat); air sparging; and natural contaminant attenuation (intrinsic remediation) with long-term monitoring. All hydrogeologic and groundwater chemical data necessary to evaluate the various remedial options will be collected under this program; however, this work plan is oriented toward the collection of hydrogeologic data to be used as input into the Bioplume groundwater model in support of intrinsic remediation for restoration of fuel-hydrocarbon-contaminated groundwater.

Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option at the Former AGE Fuel Facility (Building 4715)

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ISBN 13 :
Total Pages : 109 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option at the Former AGE Fuel Facility (Building 4715) by :

Download or read book Work Plan for an Engineering Evaluation/Cost Analysis in Support of the Intrinsic Remediation (Natural Attenuation) Option at the Former AGE Fuel Facility (Building 4715) written by and published by . This book was released on 1995 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan, prepared by Parsons Engineering Science, Inc. (Parsons ES), presents the scope of work required for the collection of data necessary to conduct an engineering evaluation/cost analysis (EE/CA) for remediation of groundwater contaminated with petroleum products at the former Aerospace Ground Equipment (AGE) fueling facility adjacent to Building 4715 located at Seymour Johnson Air Force Base (AFB), Goldsboro, NC. This EE/CA will provide the framework for the site's Corrective Action Plan under the North Carolina requirements. Several remedial options will be evaluated during the EE/CA possibly including free product removal; groundwater extraction, treatment, and reinjection (i.e., pump and treat); air sparging; and natural contaminant attenuation (intrinsic remediation) with long-term monitoring. All hydrogeologic and groundwater chemical data necessary to evaluate the various remedial options will be collected under this program. However, this work plan is oriented toward the collection of hydrogeologic data to be used in support of intrinsic remediation for restoration of fuel-hydrocarbon-contaminated groundwater. When applicable, site-specific information may be obtained from previous studies conducted at Seymour Johnson AFB.

Work Plan for an Engineering Evaluation/Cost Analysis for Hill Air Force Base, Ogden, Utah

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Publisher :
ISBN 13 :
Total Pages : 95 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Work Plan for an Engineering Evaluation/Cost Analysis for Hill Air Force Base, Ogden, Utah by :

Download or read book Work Plan for an Engineering Evaluation/Cost Analysis for Hill Air Force Base, Ogden, Utah written by and published by . This book was released on 1993 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan was prepared by Engineering-Science, Inc. (ES) and presents the scope of work required for the collection of data necessary to conduct an engineering evaluation/cost analysis (EB/CA) for remediation of fuel hydrocarbon-contaminated ground water at underground storage tank (UST) Site 870, Hill Air Force Base (AFB), Utah. Several remedial options will be evaluated during the EE/CA, including free product removal; ground water extraction, treatment, and reinjection (i.e., pump and treat); air sparging; and natural contaminant attenuation with long-term monitoring. All hydrogeologic and ground water chemical data necessary to evaluate the various remedial options will be collected under this program; however, this work plan is oriented toward the collection of hydrogeologic data to be used as input into the Bioplume II ground water model in support of the natural attenuation (intrinsic remediation) with long-term monitoring remedial option for restoration of fuel hydrocarbon-contaminated ground water.

Intrinsic Remediation Engineering Evaluation/Cost Analysis for the Former AGE Fueling Facility Site, Seymour Johnson Air Force Base, Goldsboro, North Carolina. Draft. Volume 2. Appendices

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ISBN 13 :
Total Pages : 612 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Intrinsic Remediation Engineering Evaluation/Cost Analysis for the Former AGE Fueling Facility Site, Seymour Johnson Air Force Base, Goldsboro, North Carolina. Draft. Volume 2. Appendices by :

Download or read book Intrinsic Remediation Engineering Evaluation/Cost Analysis for the Former AGE Fueling Facility Site, Seymour Johnson Air Force Base, Goldsboro, North Carolina. Draft. Volume 2. Appendices written by and published by . This book was released on 1996 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Work Plan for Engineering Evaluations/Cost Analyses at Hangar 10 and Site ST41, Elmendorf Air Force Base, Anchorage, Alaska

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ISBN 13 :
Total Pages : 121 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Work Plan for Engineering Evaluations/Cost Analyses at Hangar 10 and Site ST41, Elmendorf Air Force Base, Anchorage, Alaska by :

Download or read book Work Plan for Engineering Evaluations/Cost Analyses at Hangar 10 and Site ST41, Elmendorf Air Force Base, Anchorage, Alaska written by and published by . This book was released on 1994 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan was prepared by Engineering-Science, Inc. (ES) and presents the scope of work required for the collection of data necessary to conduct an engineering evaluation/cost analysis (EE/CA) for remediation of fuel-hydrocarbon-contaminated ground water at two sites at Elmendorf Air Force Base (AFB), Anchorage, Alaska. The two sites to be addressed are the Hangar 10 site and site ST4l (locally known as Four Million Gallon Hill). Several remedial options will be evaluated during the EE/CA, including free product removal; ground water extraction, treatment, and re-injection (i.e., pump and treat); air sparging; and intrinsic remediation with long-term monitoring (intrinsic remediation). All hydrogeologic and ground water chemical data necessary to evaluate the various remedial options will be collected under this program; however, this work plan is oriented toward the collection of hydrogeologic data to be used as input into the Bioplume II ground water model in support of the intrinsic remediation (intrinsic remediation) with long-term monitoring remedial option for restoration of fuel hydrocarbon-contaminated ground water.

Final Intrinsic Remediation Engineering Evaluation/Cost Analysis for the FT-002 Site, Plattsburg Air Force Base, New York

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ISBN 13 :
Total Pages : 221 pages
Book Rating : 4.:/5 (455 download)

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Book Synopsis Final Intrinsic Remediation Engineering Evaluation/Cost Analysis for the FT-002 Site, Plattsburg Air Force Base, New York by : Parsons engineering science inc denver co

Download or read book Final Intrinsic Remediation Engineering Evaluation/Cost Analysis for the FT-002 Site, Plattsburg Air Force Base, New York written by Parsons engineering science inc denver co and published by . This book was released on 1995 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of an Engineering Evaluation/Cost Analysis (EE/CA) performed by Parsons Engineering Science, Inc. (Parsons ES) at Plattsburgh Air Force Base, New York, to evaluate if naturally occurring attenuation mechanisms would be sufficient to reduce dissolved fuel-related compounds in shallow ground water at and migrating from the former Fire Training Area (Site FT-002) to levels that meet federal- and state-specified ground water protection standards. Several site investigations completed at Site FT-002 under the Department of Defense (DOD) Installation Restoration Program (IRP) indicate that the soil and ground water associated with and downgradient of the former fire training area is contaminated with JP-4-related compounds and chlorinated solvents. Significant light nonaqueous phase liquid (LNAPL) still exists at the site, which acts as a continuing source of contamination mass to the ground water. The main emphasis of the work described herein was to quantitatively investigate the fate and transport of dissolved benzene, toluene, ethylbenzene, and total xylenes (BTEX) in the shallow ground water at the site. The fate and transport of dissolved chlorinated solvents (i.e., trichloroethene (TCE), cis- and trans-dichloroethene (DCE), and vinyl chloride) in shallow ground water was qualitatively considered to evaluate whether remedial technologies that may be appropriate for the BTEX compounds would also be effective on these other site-related contaminants.

Engineering Evaluation/Cost Analysis for the Risk-Based Remediation of Pumphouse 2

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ISBN 13 :
Total Pages : 471 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Engineering Evaluation/Cost Analysis for the Risk-Based Remediation of Pumphouse 2 by :

Download or read book Engineering Evaluation/Cost Analysis for the Risk-Based Remediation of Pumphouse 2 written by and published by . This book was released on 1997 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parsons Engineering Science, Inc. (Parsons ES), formerly Engineering-Science, Inc. (ES), was retained by the United States (US) Air Force Center for Environmental Excellence (AFCEE) to prepare an engineering evaluation/cost analysis (EE/CA) in support of a risk-based remediation decision for soil and groundwater contaminated with fuel hydrocarbons at Pumphouse #2, a former fuel storage and pumping facility at Malmstrom Air Force Base (AFB), in Great Falls, Montana (the Base). Risk-based remediation is designed to combine natural physical, chemical, and biological processes with low-cost source removal technologies such as in situ bioventing, as necessary, to economically reduce potential risks posed by subsurface petroleum fuel spills. A decision diagram for the risk-based process is shown in Figure 1.1.

Natural Attenuation

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Publisher : CRC Press
ISBN 13 : 9781566703024
Total Pages : 264 pages
Book Rating : 4.7/5 (3 download)

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Book Synopsis Natural Attenuation by : Patrick V. Brady

Download or read book Natural Attenuation written by Patrick V. Brady and published by CRC Press. This book was released on 1997-09-24 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Attenuation: CERCLA, RBCAs, and the Future of Environmental Remediation presents the concept of "natural attenuation"-the tendency of soils to severly limit the toxicity of many types of hazardous waste. It reviews and updates the most recent findings from the field and lab and shows how natural attenuation is rapidly changing the direction and focus of environmental remediation. Outlining the legal and regulatory framework that has made waste remediation so costly, this book shows how applying an understanding of natural attenuation can decrease cleanup outlays while lowering risks to human health. Natural Attenuation: CERCLA, RBCAs, and the Future of Environmental Remediation makes it clear why natural attenuation will be relied upon more and more in the future.

Intrinsic Remediation Engineering Evaluation/Cost Analysis Addendum for Site SS27/XYZ, Dover Air Force Base Dover, Delaware

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Intrinsic Remediation Engineering Evaluation/Cost Analysis Addendum for Site SS27/XYZ, Dover Air Force Base Dover, Delaware by :

Download or read book Intrinsic Remediation Engineering Evaluation/Cost Analysis Addendum for Site SS27/XYZ, Dover Air Force Base Dover, Delaware written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intent of the Addendum was to evaluate the effectiveness of natural attenuation in remediating fuel contamination in groundwater at Site SS27/XYZ. The primary objective of this addendum is to evaluate changes in (1) concentrations of dissolved BTEX, (2) BTEX plume extent, and (3) natural attenuation mechanisms that are responsible for reducing BTEX mass and concentration between April 1994 and February 1999. Data collected in April 1994 for the EE/CA are used as a baseline for comparison. Groundwater samples were collected in September 1997 and February 1999 by researchers from the United States Environmental Protection Agency (USEPA) National Risk Management Research Laboratory (NRMRL) Subsurface Protection and Remediation Division.

Work Plan for an Engineering Evaluation/Cost Analysis in Support of Intrinsic Remediation (Natural Attenuation) at Sites FT01 and SS12 King Salmon Airport, Alaska

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Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Work Plan for an Engineering Evaluation/Cost Analysis in Support of Intrinsic Remediation (Natural Attenuation) at Sites FT01 and SS12 King Salmon Airport, Alaska by :

Download or read book Work Plan for an Engineering Evaluation/Cost Analysis in Support of Intrinsic Remediation (Natural Attenuation) at Sites FT01 and SS12 King Salmon Airport, Alaska written by and published by . This book was released on 1994 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan was prepared by Engineering-Science, Inc. (ES) for the Air Force Center for Environmental Excellence (AFCEE). It presents the scope of work required for the collection of data necessary to conduct an engineering evaluation/cost analysis (EE/CA) for remediation of two fuel-hydrocarbon-contaminated ground water sites at King Salmon Airport (KSA), in King Salmon, Alaska. The two sites to be addressed in this work plan are Fire Training Area No. 1 (Site FT01) and the Upper Naknek site (Site SS12). Investigations have been previously undertaken at both sites as part of the U S Air Force (USAF) Installation Restoration Program (IRP). Several remedial options will be evaluated during the EE/CA, including free product removal; ground water extraction, treatment, and re-injection (i.e., pump and treat); and intrinsic remediation with long-term monitoring (intrinsic remediation). All hydrogeologic and ground water chemical data necessary ;to evaluate the various remedial option will be collected under this program; however, this work plan is oriented primarily toward the collection of hydrogeologic data to be used as input into the Bioplume II (trade name) ground water model in support of the intrinsic remediation option for restoration of fuel-hydrocarbon-contaminated ground water.

Intrinsic Remediation Engineering Evaluation/Cost Analysis Addendum for UST Site 870, Hill Air Force Base Ogden, Utah

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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Intrinsic Remediation Engineering Evaluation/Cost Analysis Addendum for UST Site 870, Hill Air Force Base Ogden, Utah by :

Download or read book Intrinsic Remediation Engineering Evaluation/Cost Analysis Addendum for UST Site 870, Hill Air Force Base Ogden, Utah written by and published by . This book was released on 1999 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intent of the EE/CA Addendum was to determine the role of natural attenuation in remediating fuel contamination in groundwater at Site 870. The EE/CA was conducted to evaluate the use of intrinsic remediation with long-term monitoring (LTM) for remediation of fuel hydrocarbon contamination dissolved in groundwater at UST Site 870. This update summarizes the results of the third sampling event performed as part of long-term groundwater monitoring at the site. This sampling was conducted in September 1998 by researchers from the US Environmental Protection Agency (USEPA) National Risk Management Research Laboratory (NRMRL) Subsurface Protection and Remediation Division. The original EE/CA sampling event was conducted in August 1993 with the first long-term sampling occurring in July 1994 and the second long-term sampling occurring in September 1995. The main emphasis of this summary is to evaluate changes in dissolved benzene, toluene, ethylbenzene, and xylene (BTEX) concentrations, plume extent, and natural attenuation mechanisms through time.

Intrinsic Remediation Engineering Evaluation/Cost Analysis for the Hangar 10 Site, Elmendorf Air Force Base, Alaska

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ISBN 13 :
Total Pages : 235 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Intrinsic Remediation Engineering Evaluation/Cost Analysis for the Hangar 10 Site, Elmendorf Air Force Base, Alaska by :

Download or read book Intrinsic Remediation Engineering Evaluation/Cost Analysis for the Hangar 10 Site, Elmendorf Air Force Base, Alaska written by and published by . This book was released on 1994 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of an engineering evaluation/cost analysis (EE/CA) performed by Parsons Engineering Science, Inc. (Parsons ES) at Elmendorf Air Force Base, Alaska to evaluate the use of intrinsic remediation (natural attenuation) with long-term monitoring (LTM) as a remedial option for dissolved-phase benzene, toluene, ethylbenzene, and xylene (BTEX) contamination in the shallow saturated zone in the vicinity of Hangar 10. Soil and ground water contamination is known to occur at the site, with contamination being present in the dissolved and gaseous phases and as residual light nonaqueous-phase liquid (LNAPL) within the aquifer matrix. There is no evidence of mobile LNAPL (free product) at this site. This study focused on the impact of dissolved-phase BTEX on the shallow ground water system at the site. Site history and the results of soil and ground water investigations conducted previously are also summarized in this report. An important component of this study was an assessment of the potential for contamination in ground water to migrate from the Hangar 10 site to potential receptors. The Bioplume II model was used to estimate the rate and direction of dissolved-phase BTEX movement through the shallow saturated zone under the influence of advection, dispersion, sorption, and biodegradation. Input parameters for the Bioplume II model were obtained from existing site characterization data, supplemented with data collected by Parsons ES in conjunction with personnel from the United States Environmental Protection Agency (USEPA) Robert S. Kerr Environmental Research Laboratory. Extensive site-specific data were used for model implementation. The results of this study suggest that dissolved-phase BTEX contamination present in ground water poses no significant risk to human health or the environment in its present, or predicted future, concentration and distribution. predicted future, concentration and distribution.