Brett Bohentin

An Innovative Remedial Approach for Petroleum Hydrocarbons When Considering Impacts on Business Operations – A Case Study

Brett Bohentin, Project Manager, APTIM

When determining a suitable remedial strategy to address soil and groundwater impacts at retail petroleum facilities, considerable attention is paid to site specific characteristics such as lithology, plume size, particular contaminants and their concentrations, proposed timeline, and cost. One component that is often overlooked is how the remedial strategy will impact operations of the business. At an active petroleum station in southwest Florida, soil and groundwater impacts were localized beneath the overhead canopy. Familiar strategies such as air sparge and soil vapor extraction were ideal given the considerations above; however, with a (very) active petroleum station and the plume situated within high travel and operational areas, an innovative technology was utilized in order to minimize impacts to the business operations. APTIM utilized chemical injections using hydrogen peroxide and EN Rx Reagant at multiple locations and intervals beneath the canopy to address volatile organic aromatics/volatile organic hydrocarbons (specifically isopropylbenzene) and polynuclear aromatic hydrocarbons impacts in the soil and groundwater. The injection events were successful in reducing contaminant concentrations to levels allowing for Post Active Remediation Monitoring. The short-term injection events were successful in driving the rehabilitation of the site without burdening the property with extensive construction, operational disruptions that can cause loss of sales, and health & safety issues that accompany remediation at active petroleum stations.

Brett Bohentin is a Project Manager for APTIM with 20 years of experience in the environmental industry. His main focus is environmental assessment/remediation and underground storage tank compliance.