Abstract
Landfill 5 Operable Unit
Air Sparging/Soil Vapor Extraction
Ft. Griffey, Ohio
Site Name and Operable Unit:
Landfill 5 Operable Unit
Location:
Fort Griffey, Ohio
Regulatory Oversight:
U.S. Environmental Protection Agency Region V
Riverfront Air Pollution Control Agency
Contractor Oversight:
U.S. Army Corps of Engineers, Louisville District
Remedial Action Contractor:
Remediation Enhanced Developments, Inc., Cincinnati, OH
Waste Source:
Disposal of refuse and liquid waste in an unlined landfill cell during the 1950s
and 1960s
Dichloroethene (DCE)
Trichloroethene (TCE)
Tetrachloroethene (PCE)
Vinyl Chloride (VC)
Benzene, toluene, ethylbenzene, and xylenes (BTEX)
Technology:
Air Sparging/Soil Vapor Extraction
The full-scale system includes 5 AS wells, 6 SVE wells, 10 vadose zone
piezometer (VZP) wells, and 3 dissolved oxygen sensor (DOS) wells.
An impermeable layer on the ground is used to increase the SVE wells'
radii of influence.
Two parallel systems of vapor-phase granular activated carbon (GAC) are
used.
SVE system operates at 0-1,290 scfm.
AS system operates at 0-210 scfm.
Cleanup Type:
Full-Scale
Purpose/Significance
Remediation designed to treat soils suspected of being sources of groundwater
Of Application:
contamination and to treat impacted groundwater.
Type/Quantity of
Approximately 60 pounds of TCE had been removed as of October 31, 1997
Media Treated:
(based on concentrations in extracted soil gas). It is estimated that 27,800 cubic
yards of soil (by SVE) and 37,400,000 gallons of groundwater (by AS) will have
been treated by the end of system operation.
Period of Operation:
Pilot Test: 1/5/95 to 1/15/95
Full-Scale Operation: Ongoing
Regulatory
The cleanup levels established for groundwater in the upper aquifer beneath the
site are:
Requirements/
TCE: 5 g/L (MCL from the Federal Safe Drinking Water Act)
Cleanup Goals:
VC: 1 g/L (Ohio State Model Toxics Control Act Method B)
Monitoring of manganese is required along the western border of South and
Northwest LF5 to determine any changes in concentration.
A site-specific air emission threshold limit of 2.5 parts per million volume
(ppmv) TCE was also established.
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Ft. Griffey Landfill 5 OU Interim RA Report
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