Environmental Investigation and Feasibility Study

Global was retained by a private client (potentially responsible party) to conduct an investigation, feasibility study and prepare a closure report for a distribution center in an industrialized area as a result of a Leaking Underground Storage Tank.

Global conducted environmental investigations, remedial actions, regulatory reporting and negotiations at the Part 213 LUST site.  Three former underground storage tanks were removed from the site and two separate confirmed releases occurred at the site.  An investigation indicated that soil and groundwater contamination existed at the site.  Remedial activities at this site included the installation and operation of a Pump and Treat System utilizing an air stripper for groundwater treatment.  Subsequent to treatment, results of sampling indicated that groundwater contamination exceeding the Residential Drinking Water Criteria (RDWC) still existed.  

Additional investigations were conducted to further characterize the site, evaluate the exposure pathways and determine the non-aqueous phase liquid (NAPL) body and included Ground Penetrating Radar for the purposes of closing the site.  Additional investigations including further definition and characterization of the vertical and horizontal extent of soil contamination, install NAPL and sentinel wells, and sample the utility backfill.  Quarterly sampling was conducted on the monitoring wells and catch basins.  Site specific VIAP criteria were also requested from EGLE.