Treatability Study in Support of the Intrinsic Remediation Option at the Christmas Tree Fire Training Area at Westover Air Reserve Base Chicopee, Massachusetts PDF Download
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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 : 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 : 169
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 and solvents at Site FT-03, the Current Fire Training Area, and Site FT-03, Christmas Tree Fire Training Area, located at Westover Air Reserve Base (ARB) in Chicopee, Massachusetts (the Base). Several remedial options will be evaluated during the TS, including free-phase product removal (if present); groundwater extraction, treatment, and disposal (i.e., pump and treat); bio-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 groundwater flow and solute transport models in support of intrinsic remediation for restoration of fuel-hydrocarbon and chlorinated solvent contaminated groundwater.
Author: Publisher: ISBN: Category : Languages : en Pages : 433
Book Description
This report presents the results of a treatability study performed by Parsons Engineering Science, Inc. (Parsons ES) at Fire Protection Training Area 3 (FPTA3), Offutt Air Force Base, Nebraska to evaluate the use of intrinsic remediation (natural attenuation) with long-term monitoring (LTM) as a remedial option for dissolved benzene, toluene, ethylbenzene, and xylene (BTEX) contamination in the shallow groundwater. Residual light nonaqueous-phase liquid (LNAPL) is present within the soil and dissolved contamination is present in the groundwater. There is no evidence of mobile LNAPL (free product) at this site. This study focused on the impact of dissolved BTEX on the shallow groundwater system at the site. Dissolved chlorinated solvents also are present in the shallow groundwater; therefore, the impact of the dissolved chlorinated solvents was studied as well. 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 : 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 : 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 : 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.
Author: Publisher: ISBN: Category : Languages : en Pages : 166
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 the Flightline Operable Unit PS-2 (PS-2) located at Fairchild Air Force Base (AFB), 12 miles west of Spokane, Washington (the Base). Several groundwater remedial options will be evaluated as a part of the TS report, including: bioslurping; groundwater extraction, treatment, and disposal (i.e., pump and treat); biosparging; and natural contaminant attenuation (intrinsic remediation) with long-term monitoring. 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 intrinsic remediation for restoration of groundwater contaminated with benzene, toluene, ethylbenzene, and xylene (BTEX). As used in this report, the term "intrinsic remediation" refers to a management strategy that relies on natural attenuation mechanisms to remediate contaminants dissolved in groundwater and to control receptor exposure risks associated with contaminants in the subsurface. "Natural attenuation" refers to the actual physical, chemical, and biological processes that facilitate intrinsic remediation. Mechanisms for natural attenuation of BTEX include advection, dispersion, dilution from recharge, sorption, volatilization, and biodegradation. 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.
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