Groundwater Recovery & Treatment System

Project Profile

  • Project Location : New Jersey
  • Owner Industry : Contractor/Consultant
  • Gwtt Scope : Design, Build, Site Civil Work
  • Contract Value : $0.9M
  • Project Duration : 8 Months
  • Contaminants : Chlorinated Solvents
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Key Project Details

  • Trenching and Installation of more than 1,500’ of double walled HDPE groundwater conveyance piping
  • Construction of a 4” force-main and discharge outfall
  • Installation of instrumentation and controls
  • Installation of 40’ x 60’ concrete foundation
  • Construction of a pre-engineered building to house treatment system components

PROJECT CHALLENGES

  • Project location required extensive coordination with local utility companies to mark off and avoid water, electrical, and sewer infrastructure
  • Project execution spanned winter and early spring, which required modification of the task timeline to protect sensitive equipment and materials
  • Multiple client-requested change orders-imposed challenges for project milestones and completion schedule

Project Narrative

GWTT was selected as the building and mechanical contractor for the design/build and installation of
a groundwater recovery and treatment system. The project involved the installation of a 40’ x 60’ concrete foundation and a custom “carriage house” style pre-engineered building to house the treatment system components, which included an oil/water separator, two 4,000-gal equalization tanks, low profile air stripper, bag filtration, and liquid and vapor-phase granular activated carbon units.

GWTT installed a new potable water service to the building in addition to a new 200-amp electrical
service to supply power to the treatment system components. The site civil work included trenching and installation of over 1,500’ of double-walled HDPE groundwater conveyance piping from two extraction wells to the treatment building. A 4” force-main and discharge outfall were constructed to facilitate the discharge of treated groundwater to a nearby stream.