Treatability Study in Support of Remediation by Natural Attenuation for Groundwater at Zone 1. Westover Air Reserve Base, Chicopee, Massachusetts PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages : 559
Book Description
This report was prepared by Parsons Engineering Science, Inc. (Parsons ES), formerly Engineering-Science Inc. (ES) and presents the results of a treatability study (TS) conducted to evaluate remediation by natural attenuation (RNA) of fuel-hydrocarbon- and chlorinated-solvent-contaminated groundwater in Zone 1 at Westover Air Reserve Base (ARB), Chicopee, Massachusetts. Zone 1 encompasses sites SS-16, SS-19, and WP-15. The main emphasis of the work described herein was to evaluate the effectiveness of RNA with long-term monitoring (LTM) for restoration of groundwater contaminated with benzene, toluene, ethylbenzene, and xylenes (BTEX). Additional fuel hydrocarbon and chlorinated solvent compounds were identified as chemicals of concern (COCs) for Zone 1; therefore, the potential for natural attenuation mechanisms to effectively reduce low, dissolved concentrations of these compounds in site groundwater also was qualitatively considered.
Author: Publisher: ISBN: Category : Languages : en Pages : 559
Book Description
This report was prepared by Parsons Engineering Science, Inc. (Parsons ES), formerly Engineering-Science Inc. (ES) and presents the results of a treatability study (TS) conducted to evaluate remediation by natural attenuation (RNA) of fuel-hydrocarbon- and chlorinated-solvent-contaminated groundwater in Zone 1 at Westover Air Reserve Base (ARB), Chicopee, Massachusetts. Zone 1 encompasses sites SS-16, SS-19, and WP-15. The main emphasis of the work described herein was to evaluate the effectiveness of RNA with long-term monitoring (LTM) for restoration of groundwater contaminated with benzene, toluene, ethylbenzene, and xylenes (BTEX). Additional fuel hydrocarbon and chlorinated solvent compounds were identified as chemicals of concern (COCs) for Zone 1; therefore, the potential for natural attenuation mechanisms to effectively reduce low, dissolved concentrations of these compounds in site groundwater also was qualitatively considered.
Author: Publisher: ISBN: Category : Languages : en Pages : 91
Book Description
This work plan prepared by Parsons Engineering Science, Inc. (Parsons ES), formerly Engineering Science, Inc. (ES), presents the scope of work required for the collection of data necessary to conduct a treatability study (TS) for remediation of groundwater contaminated with petroleum hydrocarbons at Zone 1, located at Westover Air Reserve Base (ARB) in Chicopee, Massachusetts (the Base). Zone 1 is composed of previously identified sites SS-16, SS-19, and WP-15. 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 groundwater flow and solute transport models in support of remediation by natural attenuation (RNA) with long-term monitoring (LTM) for restoration groundwater contaminated with benzene, toluene, ethylbenzene, and xylenes (BTEX)
Author: Publisher: ISBN: Category : Languages : en Pages : 329
Book Description
Intrinsic remediation is an innovative remedial approach that relies on natural attenuation to remediate contaminants dissolved in groundwater. Mechanisms for natural attenuation of benzene, toluene, ethylbenzene, and xylenes (BTEX) include biodegradation, advection, dispersion, dilution froin recharge, sorption, and volatilization. Of these processes, biodegradation is the only mechanism working to transform contaminants into innocuous byproducts. Intrinsic bioremediation occurs when indigenous microorganisms work to bring about a reduction in the total mass of contamination in the subsurface without the addition of nutrients. Patterns and rates of intrinsic remediation can vary markedly from site to site depending on governing physical and chemical processes. The main emphasis of the work described herein was to evaluate if natural attenuation mechanisms would be sufficient to reduce concentrations of dissolved fuel- related compounds in groundwater to levels that meet federal and state groundwater protection standards. The potential for these mechanisms to effectively reduce the concentrations of chlorinated solvents at the site, which is ancillary to the scope of this program, also was qualitatively considered. This study is not intended to be contaminant assessment report, a remedial action options evaluation, or a remedial action plan; rather, it is provided for the use of the Base and its prime environmental contractor(s) as information to be used for future decision making regarding this site.
Author: Publisher: ISBN: Category : Languages : en Pages : 377
Book Description
This report presents the results of a treatability study performed by Parsons Engineering Science, Inc. (Parsons ES) at the Current Fire Training Area (FT-08), Westover Air Reserve Base, Massachusetts to evaluate the use of intrinsic remediation with long-term morning (LTM) as a remedial option for dissolved fuel-hydrocarbons and chlorinated solvents in the shallow groundwater. Residual light nonaqueous-phase liquid (LNAPL) present within the vadose zone and phreatic soils serves as a continuing source for the dissolved groundwater contamination. There is no evidence of mobile LNAPL at this site. This study focused on the fate and transport of dissolved benzene, toluene, ethylbenzene, and xylene (BTEX) in the shallow groundwater system at the site.
Author: Parsons engineering science inc denver co Publisher: ISBN: Category : Languages : en Pages : 147
Book Description
This report presents the results of a treatability study performed by Parsons Engineering Science, Inc. (Parsons ES) at the Current Fire Training Area (FT-08), Westover Air Reserve Base, Massachusetts to evaluate the use of intrinsic remediation with long-term morning (LTM) as a remedial option for dissolved fuel-hydrocarbons and chlorinated solvents in the shallow groundwater. Residual light nonaqueous-phase liquid (LNAPL) present within the vadose zone and phreatic soils serves as a continuing source for the dissolved groundwater contamination. There is no evidence of mobile LNAPL at this site. This study focused on the fate and transport of dissolved benzene, toluene, ethylbenzene, and xylene (BTEX) in the shallow groundwater system at the site.
Author: Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
This report presents the results of a treatability study performed by Parsons Engineering Science, Inc. (Parsons ES) at the FT-1 Site, Fairchild Air Force Base, Washington to evaluate remediation by natural attenuation (RNA) of dissolved fuel-hydrocarbons and chlorinated solvents in the shallow groundwater. RNA will supplement the engineered remedial actions prescribed in the Record of Decision (ROD). Residual nonaqueous-phase liquid (NAPL) present within the vadose zone and phreatic soils serves as a continuing source for the dissolved groundwater contamination. There is no evidence of mobile NAPL at this site. This study focused on the fate and transport of dissolved benzene, toluene, ethylbenzene, and xylene (BTEX) in the shallow groundwater system at the site. Dissolved chlorinated aliphatic hydrocarbons (CAHs) also are present in the shallow groundwater; therefore, the potential for RNA of these compounds was investigated as well. Site history and the results of soil and groundwater investigations conducted previously are also summarized in this report. Comparison of BTEX, CAH, electron acceptor, and biodegradation byproduct isopleth maps for Site FT-1 provides strong.
Author: Publisher: ISBN: Category : Languages : en Pages : 483
Book Description
This report presents the results of a remediation by natural attenuation treatability study (RNA TS) performed by Parsons Engineering Science, Inc. (Parsons ES) at Fire Training Area 2 (FTA-2), Tinker Air Force Base (AFB), Oklahoma. The RNA TS was performed to evaluate the use of natural attenuation with long-term monitoring (LTM) as a remedial option for dissolved chlorinated aliphatic hydrocarbon (CAM) contamination in the upper saturated zone (USZ). The presence of groundwater contamination and soil contamination at the site was documented during remedial investigations performed by International Technology Corporation (IT) (1994) and Tetra Tech (TT) (1996). This TS focused on the impact of dissolved CAHs, primarily trichloroethane (TCE), on the USZ groundwater system at, and downgradient from, the site. Site history and the results of soil and groundwater investigations conducted previously also are summarized in this report.
Author: Publisher: ISBN: Category : Languages : en Pages : 374
Book Description
This report presents the results of a treatability study (TS) performed by Parsons Engineering Science, Inc. (Parsons ES) at the Area A Service Station (Area A), Tinker Air Force Base (AFB), Oklahoma, to evaluate remediation by natural attenuation (RNA) of dissolved chlorinated aliphatic hydrocarbons (CAHs) and fuel hydrocarbons in groundwater. The TS focused on the fate and transport of dissolved CAHs, particularly trichloroethene (TCE), which are present at high concentrations. Petroleum hydrocarbons INCLUDING BENZENE, TOLUENE, ETHYLBENZENE, AND XYLENES (BTEX) are also present in site groundwater and were considered in this TS. The site history and results of previous soil and groundwater investigations are also summarized in this report.
Author: Publisher: ISBN: Category : Languages : en Pages : 705
Book Description
This report presents the results of a treatability study performed by Parsons Engineering Science. Inc. (Parsons ES) at UST Sites 10-494, 10-495, and 10-496 (UST Site) Beale Air Force Base. California to evaluate the use of remediation by natural attlenuation (RNA) with long-term monitoring (LTM) as a remedial option for dissolved benzene. toluene. ethylbenzene, and xylene (BTEX) and total petroleum hydrocarbons as gasoline (TPH-g) contamination in the shallow groundwater. This study focused on the impact of dissolved BTEX and TPH-g compounds on the shallow groundwater system at the site. Site history and the results of soil and groundwater investigations conducted previously are also summarized in this report.
Author: Publisher: ISBN: Category : Languages : en Pages : 177
Book Description
This report presents the results of an intrinsic remediation treatability study (TS) performed by Parsons Engineering Science, Inc. (Parsons ES) at Site OT 24, MacDill Air Force Base (AFB, the Base), Tampa, Florida to evaluate the use of intrinsic remediation (natural attenuation) with long-term monitoring (LTM) as a remedial option for dissolved benzene, toluene, ethylbenzene, and xylenes (BTEX) contamination in the shallow saturated zone. Soil and groundwater contamination is documented for the site, with contamination being present in the aqueous (i.e., dissolved) and gaseous phases and as residual light nonaqueous-phase liquid (LNAPL) within the aquifer matrix. The presence of mobile LNAPL (free product) in the immediate vicinity of the contamination source area is also indicated at this site. This study focused on the impact of dissolved BTEX on the shallow groundwater system at and downgradient from the site. The impact of dissolved chlorinated aliphatic hydrocarbons (CAHs) such as vinyl chloride on the shallow groundwater system is also discussed. Site history and the results of soil, groundwater, and sediment investigations conducted previously are summarized in this report.
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