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Case Study – Industrial Compliance/Groundwater Remediation

Overview

Turn-Key Environmental Consultant’s (TKEC) client has a large manufacturing facility in Ohio which has had many leaking underground storage tanks over the last 2-3 decades.  This has resulted in extensive groundwater and soil contamination.  The appropriate investigations and remedial activities have continued for many years.  

Primary Environmental Issues

  • Extensive soil and groundwater contamination
  • Migration of contaminants throughout the property
  • Free product in several wells

Groundwater Remediation System        

Groundwater Remediation

The contaminants include gasoline and mineral spirits/solvent constituents.  There have been numerous monitoring wells and soil borings installed over the years.  There are currently 3 groundwater recovery wells in operation that are connected to a groundwater remediation system installed by TKEC.  The system includes an oil water separator, air stripper and activated carbon vessels, which then discharge to the storm sewer.  

The system is sampled monthly to ensure the discharge meets the limits set by the NPDES discharge permit.  In addition to the maintenance and sampling of the groundwater remediation system, all the wells on the site are gauged monthly and sampled annually.  There is also manual free product recovery that is conducted when the system is down for any reason.  This process will continue until the contamination is below site action levels and the free product is gone.  

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