BIO-SYSTEMS International

CH#952 - Oil Contaminated Soil


Courtesy of Courtesy of BIO-SYSTEMS International

A National Overnight Express Package Company

Site and geological surveys revealed a contaminated area north of the facility and west of a diesel tank pit. The cause of the contamination was the result of two (2) underground storage tanks (UST™). One tank contained waste oil while the other contained new oil. Both tanks had been removed. A monitor well was installed at the completion of the survey to provide future monitoring and an infiltration avenue for bioremediation. Initial laboratory samples revealed that actionable levels of contaminants existed. These results showed levels of 21,960 ppm TPH (Total Petroleum Hydrocarbon) using an IR scan (EPA 418.6 Methodology). A BTEX (Benzene, Toluene, Ethylbenzene and Xylene) test via U.S. EPA 5030/8020 Method revealed Benzene levels at 19 ppb and Xylene at 487 ppb.

BIO-SYSTEMS augmented insitu subsurface bioremediation process was selected as the method of remediation, utilizing BIO-SYSTEMS™ product (a proprietary blend of microaerophilic bacteria and micronutrients). The BIO-SYSTEMS product was cultured and propagated on site and the resulting batch solution was placed into the contaminate plume via the monitoring well. Routine PID readings for degradation components were monitored and recorded. Bioremediation began on January 23, 1991 and nondetect readings were obtained on March 20, 1991. Final samples were obtained and forwarded to an independent laboratory for verification results. U.S. EPA Method 5030/8020 showed nondetect results.

By utilizing BIO-SYSTEMS bioremediation process and products, the property has no ties to a disposal site and PRP (Potentially Responsible Parties) liabilities from the waste oil and new oil contaminated tank site have been eliminated for the owners of the property.

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