Fishbeck provided contractor oversight for the removal of five underground storage tanks (USTs) and conducted site assessment sampling for a project in Ottawa Lake, Michigan. Site assessment activities consisted of soil and groundwater sampling. Based on the results of the samples, the suspected release report was upgraded to a confirmed release report.
During the UST removal activities, workers noted product in several USTs. A vacuum truck was used to remove the UST contents. As the tanks were pulled and placed on the ground for cleaning, several holes were observed in the bottom of one of the tanks. Fishbeck observed shallow groundwater (with a sheen present) within the tank basin and collected groundwater samples. The results of the site assessment sampling, along with olfactory and visual evidence noted during UST removal, indicated contaminants in the soil and groundwater at concentrations exceeding Part 213 Risk-Based Screening Levels.
Site assessment sampling activities also confirmed the presence of diesel and gasoline-related compounds beneath the USTs. Fishbeck recommended that the client submit a claim to the Michigan Underground Storage Tank Authority (MUSTA), who insured the USTs.
Fishbeck continues to work with the client and The Michigan Department of Environment, Great Lakes and Energy to imperilment deed restrictions and finalize the closure report for the property.
