Installation of a subsurface groundwater treatment wall composed of granular zero-valent iron
Conference
·
OSTI ID:126430
- Geomatrix Consultants, Inc., San Francisco, CA (United States); and others
A subsurface treatment wan (consisting of granular, zero-valent iron and gravel) and low-permeability slurry wall system was installed as the final remedy at a former semiconductor manufacturing facility in the south San Francisco Bay area. The property has been vacant since 1983, and the former facility`s lease recently expired. This treatment wall replaced a groundwater pump and treat system that was installed as an interim remedy in 1987. While the pump and treat system may have been acceptable to regulatory agencies as a final site remedy, the treatment wall was proposed and eventually selected as the final remedy because it would eliminate above-ground treatment systems on the property and thereby have little to no effect on the property`s future use; it would eliminate the necessity for weekly operation and maintenance and therefore avoid access issues that might arise after the tenant`s lease expired; and it would greatly reduce total remediation costs.
- OSTI ID:
- 126430
- Report Number(s):
- CONF-950402--
- Country of Publication:
- United States
- Language:
- English
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