Micro-Bac International, Inc.
Reduction of PAHs
Project A Department of Transportation facility located in northern Illinois removed an underground storage tank (UST) containing diesel fuel. During the removal, it was discovered that the UST had been leaking. The soil was tested for polynuclear aromatic hydrocarbons (PAHs) using the USEPA Method 8310, and was found to contain levels above the Illinois EPA’s standards.
Treatment Approximately 350 cubic yards of contaminated soil were properly staged so that ex-situ bioremediation could be conducted. During the staging process, M-1000H«®, OSNF #1 nutrients, and water were sprayed on the soil. The treated soil was then covered with black plastic. The soil pile was monitored for moisture, pH, nutrient level, and microbial plate counts.
Results The soil data graphed below indicates sufficient PAH reduction to achieve site closure from the Illinois EPA.
