Hydraulic Control Treatment System

Project Profile

  • Project Location : New Jersey
  • Owner Industry : Contractor/Consultant
  • Gwtt Scope : Startup, Design, Build
  • Contract Value : $1.6M
  • Project Duration : 11 Months
  • Contaminants : Hexavalent Chromium, DNAPL, VOCs
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Project Narrative

GWTT constructed a ground water extraction and treatment system in New Jersey designed to remediate groundwater contaminated with hexavalent chromium (Cr VI), dense non-aqueous phase liquid (DNAPL), and volatile organic compounds (VOCs) from a total of 42 hydraulic control wells installed within the confines of a slurry wall.
The treatment process utilized chromium reduction, metals precipitation, pH adjustment, and carbon/organo-clay technologies to maintain the system effluent within limits of a NJPDES DSW permit. GWTT was responsible for the installation of all interior building treatment components and mechanical work including process piping, HVAC, electrical, and instrumentation and controls.
After project construction was complete, GWTT performed startup and commissioning services for the system and provided system operation (N-3 licensed operator), process optimization, and maintenance for the initial 60 days of operation.