Remediation Solution
Remediation Approach
Technology
Media Treated
Industry
Contaminant Type
Contaminant of Concern
Location
Benzene-contaminated groundwater at a former gas station in southern Indiana required treatment across five monitoring wells, with peak concentrations of 10,800 µg/L in MW-4 and 8,500 µg/L in MW-5. Complex distribution requirements and proximity to drinking water resources necessitated a targeted, hydraulically controlled treatment approach.
BAM was injected through 56 DPT points totaling 4,760 gallons of treatment chemistry, targeting areas with highest benzene concentrations. A vacuum truck was deployed simultaneously to remove contaminated groundwater and provide hydraulic control throughout the injection program.
MW-4 benzene concentrations were reduced from 10,800 µg/L to non-detect, and MW-5 from 8,500 µg/L to 1,970 µg/L. Site-wide benzene reduction of 90.9% was achieved across all five monitored wells. Concentrations at all monitoring locations fell below applicable regulatory standards within one year of treatment, and the site—a former gas station in southern Indiana located in proximity to drinking water resources—was successfully closed. The 56-point DPT injection program and simultaneous vacuum truck extraction provided the hydraulic control required to achieve effective treatment distribution across the full contaminated interval.
Superfund ISTR Under Strict Air Emission Limits
Bioremediation for PFAS
High-Profile ISTR of Historic Chemical Disposal Impacts
