Groundwater Recovery and Treatment System
Maxymillian Technologies (MT) installed a groundwater recovery system
around the perimeter of a contaminated GE manufacturing facility to
prevent the off-site migration of contaminants. MT installed a french
drain, manholes, a lift station, a dense, non-aqueous phase liquids
(DNAPLs) recovery system and a groundwater treatment system. Primary
contaminants included VOCs (including TCE) and PAHs.
MT constructed the groundwater recovery system at the
perimeter of the known contaminated area. This required MT to handle
all soils as hazardous material. All MT personnel were OSHA 40-Hour
HAZWOPER trained. MT built a special narrow shoring system to minimize
the volume of waste generated during construction. This design reduced
the amount of waste generated, and enhanced the workers' safety in a
wet and unstable soil situation.
MT designed and built the recovery system of permeable
fill and perforated pipe in a filter fabric envelope configuration. It
extended from 1' above the water table to the native Boston Blue Clay.
The trench was 10-12 feet deep. All material excavated from the
trenches was placed in water- tight containers for testing and final
disposal. After completion of the recovery system, MT installed eight
monitoring wells throughout the site to aid in monitoring the
performance of the recovery system.
During construction, MT dewatered the site and treated
all water prior to discharge into the storm sewers. MT accomplished
this by pumping all water into a frac tank for gravimetric settling. MT
then pumped water through filters and liquid phase carbon prior to
discharge.
For the water treatment phase of the project, MT
installed a pump station, an equalization tank with secondary
containment, replaceable cartridge filters, liquid phase carbon
canisters and two gas fired Samsco evaporators. The system required
installing a single phase and three phase electrical, as well as a
control system capable of unattended automated operation. All
mechanical was installed per the plans and specifications and sized to
accommodate the requirements of the equipment given the existing
utilities.
- Client: General Electric Company, Aircraft Engines
- Consulting Engineers: Eckenfelder, Inc.
- Location: Beverly, MA
- Project Managers: Alan N. Steinhoff
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Installation of groundwater treatment system.
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