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Services Provided
ü Environmental Restoration
ü Remedial Design, Remedial Action
ü Treatability, Lab Scale
Troubleshooting
ü Fate-and-Transport Modeling
Technologies Used
ü Air Stripping
ü Chemical Neutralization
ü Activated Carbon Absorption
Relevance
ü Groundwater
ü Hazardous, Freon-113
ü Government Facility
Accomplishments
ü Turn-key design-build-operation of
full-scale groundwater treatment
system
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Title:
Groundwater Remediation of Freon 113 and Volatile Organic Contamination
Client: NASA Johnson Space Center
Houston, Texas
This project consisted of turnkey groundwater remediation support, including the design and installation of a groundwater
treatment system to address groundwater contaminated with Freon 113 and other volatile organic compounds. The system involved 5 extraction wells, 3 injection wells, two air strippers,
and a carbon absorption treatment system. It was later upgraded, adding a chemical neutralization feature. Overall work included pre-design activities (site investigation, soil
borings, well installation, pumptesting, geochemical data acquisition, risk assessment, and computer modeling), and detail engineering of a remedial pump and treat system. Slant
drilling techniques were employed for extraction wells installed to capture portions of the groundwater plume beneath the release site facility. After installation, ETAS Corporation
provided professional services to evaluate and trouble shoot the system. As a result, a chemical neutralization feature was added, and problems associated with the clogging of injection
wells with undesirable chemical precipitates were alleviated.
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