1
GWTT was selected as part of the design/build team contracted to construct a perched groundwater remediation system for remov- al of arsenic and VOCs, as part of a large scale remediation project in Middlesex, NJ. GWTT was the general contractor for this project, with a construction contract of $1.5M. GWTT’s scope of work included confined space activities associated with installing the duplex pump systems in existing precast sumps approximately 20’ deep. Each duplex sump was installed with a stainless steel rail and guide system anchored to the interior sump wall. GWTT completed the installation of underground conveyance piping and electrical conduit from the sumps to the new building. In addition, GWTT oversaw the modification to the existing slab for footer installations and erection of the building. GWTT installed all the process equipment, including the solids holding tanks, clarifier, chemical feed systems, multi-media filters, sludge conditioning tank, filter press, low-profile air stripper, arsenic adsorbers, and liquid phase carbon adsorbers. After the process equipment and main control panel were set, GWTT completed the installation of the interior process piping and electrical conduit. The treatment system is fully automated using a PLC system installed by GWTT. The PLC allows for remote access by the oper- ator, which results in a cost effective alternative related to alarm scenarios and system shutdowns during off hours. The GWTT O&M Services Team provides a full-time O&M technician responsible for daily operation of the system. Permanent Perched Groundwater Treatment Sytem Ground/Water Treatment & Technology 627 Mt. Hope Road Wharton, NJ 07885 p: (973) 983-0901 f: (973) 983-0903 www.gwttllc.com © 2019 GROUND/WATER TREATMENT & TECHNOLOGY, LLC Connect with our Treatment System Operations experts now: 800-770-0901 PROJECT PROFILE Permanent Perched Groundwater Treatment System Narrative Project Location New Jersey Client Name New Fields GWTT Scope Build / O&M Contract Value $1.5M Project Duration 9 Months (Construction) Contaminants Arsenic and VOCs Key Project Details: • Construction of Perched Groundwater Treatment System for the removal of arsenic and VOC’s • Installed underground conveyance piping and electrical conduit from 20’ deep sumps to a new treatment building • Oversaw the erection of a pre-engineered Butler style structure 40’ wide by 65’ long and 22’ high • Assumed full operations and maintenance of the treatment system after successfully testing and commissioning Project Challenges: • Confined Space activities required additional planning and safety policies and procedures • Project structure was located on a small hill, requiring additional logistical scheduling and laydown space considerations JOB# 1166
