ISCO-EXCAVATION: BROWNFIELD
CLEAN-UP PROJECT - DALTON, GA
Contaminants:
FP, BTEX, TCE,
Vinyl Chloride
Treatment:
ISCO Injections
Site Status:
NFA
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This site was an active automobile dealership constructed in the1970s. In 2004, a petroleum release was discovered after the removal of a 2,000 gallon UST and a 500 gallon waste oil UST. Separate benzene, toluene, ethylbenzene, and xylenes (BTEX) plumes were detected from each UST pit area. Free product(LNAPL)was detected in 22 monitoring wells ranging in depth from 0.01 to 1.4 feet.
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Treatmentgoalsweretoremovefreeproductandlowerbenzeneconcentrationstostatecleanuptargetlevels.The ground water depth was 4 to 13 feet below ground surface (bgs).
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Six ISCO treatments were performed using Catalyzed Hydrogen Peroxide(CHP) resulting in renewal of LNAP Land high dissolved BTEX. Final clean-up in a remaining area was accomplished after excavation of the waste oil pit and injection using activated sodium persulfate. A separate treatment using potassium permanganate was also performed to eliminate vinyl chloride detected in the former waste oil pit.
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Treatment resulted in the rapid removal of LNAPL and reduction of BTEX to below target levels at a substantial cost savings, especially compared to use of a conventional system. The site received a “No Further Action” designation letter from the Georgia EPD in 2007
Ready to close your site? Our professionals are well acquainted with the "pit falls" of soil and groundwater remediation. Here at Eden, we understand that combined remedial solutions are often required.
We are committed to offering not only front end assistance but follow-up services for the life of your project to reach site closure.