Location: Atlanta, Georgia
Client: Electrical Construction Company
Contract Amount: $240,000+
An major electrical cooperative experienced fuel entering its computer
grid control building, electrical vaults, and elevator shafts during a
flood. Fuel was also migrating offsite via a creek. The coop engaged
Remtech Engineers to find the source and remediate the fuel.
Remtech set up fuel recovery systems under the building and an
interceptor trench with recovery wells to stop fuel from entering the
building. Three containment/recovery points were also setup in the
creek. Fuel was pumped into frac tanks and ventilation systems were
set up to remove vapors from the building.
Test borings were conducted to locate the plume source. The
responsible party was identified to be an upgradient electrical
construction company who intern retained Remtech to find the source
and remediate the problem.
Over five-acres were investigated with ground penetrating radar and
metal detection equipment to attempt to locate an underground
storage tank. No point source was found. Additional test borings and
35 test pits (converted into multiphase extraction wells) traced the fuel
foot print to an underground culvert and preferential pathways that
flowed towards towards the Coop building. The source was
determined to be releases from motive fueling of the contractors
equipment over many years that had accumulated in a low spot that
flood waters flushed out.
Principal tasks completed by Remtech on this project were:
installation of two lined interceptor trenches, 35 multiphase extraction
trenches, seven recovery wells, recovery of 43,560 gal of petroleum
contact water, recovery of 1,000 gal of fuel, and excavation of
440 tons of contaminated soil. The construction company brought in
their corporate remediation company and excavated and disposed of
several acres of contaminated soil to a depth of approximately eight
At $50,000 into the project, the responsible party was demonstrated to
be an entity other than the Electrical Coop that initially engaged
Remtech. The construction company complemented Remtech’s
aggressive containment and recovery actions that minimized their
liabilities and ultimate cleanup costs.