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Gasoline Bioremediation BioSparge of UST with HC-2000 | Naperville, IL

Location: Chicago, Illinois

Client: Freight Distribution Center

Contract Amount: $20,000


A gasoline underground storage tank pit was contaminated with dissolved  gasoline analytes following removal and backfill of a 10,000 gal UST that prevented closure of the site.


Sixteen (16) biosparge points were driven into groundwater through a pea gravel/colloidal clay matrix.  Remtech’s native bioremediation accelerator HC-2000 was injected on a weekly basis topically and

through the sparge tips.  A compact air and HC-2000 injection system was used to pulse air and enzyme into the tank pit.

At the end of a six (6) week treatment period, heterotrophic plate counts jumped to several million CFU/ml. Groundwater BETX analytes were reduced  - 98% for benzene, 96% for

ethylbenzene, 99% for toluene, and 94% for total xylenes.  


The tank pit was closed that prevented additional treatment and minimized additional facility operational interruptions.

BioSparge Injection System at Freight Terminal

BioSparge Injection Grid

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