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REMEDIATION - PETROLEUM RELEASE SITES
PROJECT PROFILES:
Groundwater Recovery
For a major national car rental company, RT designed, permitted, and
constructed a groundwater
recovery and treatment system in Atlantic City. After initial pump test
work, RT designed, permitted,
and constructed a groundwater recovery system and pretreatment system using
activated carbon. RT also
operates the system and provides groundwater monitoring at the site. Cleanup
has been relatively rapid,
with regulatory remediation objectives achieved over an 18 month period.
Environmental Remediation
For a major U.S. automotive manufacturer,
RT completed an environmental cleanup at a large automobile dealership
that led to quick sale of the property. The project was commended as one
of the first voluntary cleanup efforts in Pennsylvania. RT planned and
sequenced the work so that the dealership remained open at all times.
The site survey revealed that hydraulic
lifts in the service area had leaked substantially over a long period of
time, and as a result, seriously contaminated soil material beneath the
service area floor. It was also found that leaking oil had saturated a 12
foot high concrete bearing wall.
Special underpinning techniques were used
to hold up the upper portions of the bearing wall, which separated the
service and sale areas and allowed removal of the oil saturated wall. The
service area itself was worked on in sections, with approximately 1/2 of
the service area being initially excavated. A monitoring well was
installed to make sure that groundwater was not impacted, and floor
drains/sewer discharges were checked to ascertain that oil had not reached
the sanitary sewer system. All new construction, including the floor
drains and concrete slab expansion and control joints, was designed with
100% water stop construction.
Excavation was carefully performed over a
period of four months with hundreds of tons of contaminated soil removed
and transported for thermal treatment and recycling. RT summarized all
work in an overall project certification report, and received regulatory
agency approval that no further work was required.
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