1997 Comprehensive TNX Area Annual Groundwater and Effectiveness Monitoring Report

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Description

Shallow groundwater beneath the TNX Area at the Savannah River Site (SRS) has been contaminated with chlorinated volatile organic compounds (CVOCs) such as trichloroethylene (TCE) and carbon tetrachloride. In November 1994, an Interim Record of Decision (IROD) was agreed to and signed by the U. S. Department of Energy (DOE), the Environmental Protection Agency (EPA), and the South Carolina Department of Health {ampersand} Environmental Control (SCDHEC). The Interim Record of Decision requires the installation of a hybrid groundwater corrective action (HGCA) to stabilize the plume of groundwater contamination and remove CVOCs dissolved in the groundwater. The hybrid groundwater corrective action ... continued below

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450 p.

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Chase, J. April 1998.

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Description

Shallow groundwater beneath the TNX Area at the Savannah River Site (SRS) has been contaminated with chlorinated volatile organic compounds (CVOCs) such as trichloroethylene (TCE) and carbon tetrachloride. In November 1994, an Interim Record of Decision (IROD) was agreed to and signed by the U. S. Department of Energy (DOE), the Environmental Protection Agency (EPA), and the South Carolina Department of Health {ampersand} Environmental Control (SCDHEC). The Interim Record of Decision requires the installation of a hybrid groundwater corrective action (HGCA) to stabilize the plume of groundwater contamination and remove CVOCs dissolved in the groundwater. The hybrid groundwater corrective action included a recovery well network, purge water management facility, air stripper, and an airlift recirculation well. The recirculation well was dropped pursuant to a test that indicated it to be ineffective at the TNX Area. Consequently, the groundwater corrective action was changed from a hybrid to a single action, pump-and-treat approach. The Interim Action (IA) T-1 air stripper system began operation on September 16, 1996. a comprehensive groundwater monitoring program was initiated to measure the effectiveness of the system. As of December 31, 1997, the system has treated 32 million gallons of contaminated groundwater removed 32 pounds of TCE. The recovery well network created a `capture zone` that stabilized the plume of contaminated groundwater.

Physical Description

450 p.

Notes

INIS; OSTI as DE98052917

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  • Other Information: PBD: Apr 1998

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  • Other: DE98052917
  • Report No.: WSRC-RP--98-4000
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/630837 | External Link
  • Office of Scientific & Technical Information Report Number: 630837
  • Archival Resource Key: ark:/67531/metadc695520

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • April 1998

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 10, 2016, 2:36 p.m.

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Chase, J. 1997 Comprehensive TNX Area Annual Groundwater and Effectiveness Monitoring Report, report, April 1998; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc695520/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.