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INC." 3-REM, P 0 Box 116- Butter IN 45721 219-868-5623 1-800-4BUGMAN (I-SOD-428-4626) FXX 219 868 5851 CASE HISTORY (82790) Site Owner A Truck and Auto Fueling Plaza Site Survey A tank area that had contained born diesel and gasoline tanks was discovered to have several leaks The tanks from the tazd, pit area were removed Definition and characterization revealed that not only the rani: area was contaminated, but the contaminate plume had migmttd under an area where a new building, w\as be- ing constructed Initial laboratory analysis revealed TPH (Total Petroleum H drocarbon) levels of 26,000 ppm (Figure 1) using EPA Method 8015 modified These levels made the site actionable Method Due to the extent of the contaminate plume and the fact it was located beneath a new building under construction, bioremediation was selected as the most eco- nomical method of remediating this site Bio-Rem, Inc 's Augmented In-Situ Subsurface Bioremediation Process (tm) was selected Bio-gem's H-10 product (a blend of proprietary microaerophilic bacteria and micronutrients) was cultured and propagated on site The batch solution was then placed into the contarrunate plume Routine PID readings for degradanon components were taken and record- ed (Figure 2) Bioremediation began on September 19, 1990 and readings below "Clean-up" levels were obtained on December 10, 1990 Final samples were ob- tained and forwarded to an independent laboratory for venficanon of results U S EPA Method 5030/8020 revealed nondetect results (Figure 3) Comments By utilizing Bio-Rem, Inc 's Bioremediation Process and Products, the property has no ties to a disposal site The owners avoided considerable expense in eli ni- nating contaminanon from beneath a new building In addition, the owners have no PRP (Potentially Responsible Party) liabilities as the gasoline and diesel con- tamination was eliminated Page 61 98