CODE remediated chromium contaminated soil at the College Towers residential apartment complex in Jersey City, NJ. CODE’s contracted scope of work required excavation and removal of ~14,000 cy of contaminated soils from various areas within the occupied residential building complex.

Soils imported to the College Towers site as fill during original construction were hazardous for TCLP chromium and had to be removed as part of the approved RAW.

All work was conducted within premises actively occupied by the apartment’s residents. Temporary entrance and exit ramps and lighting were constructed to accommodate the residents during site activities. Special decontamination zones, site security, and traffic control measures also were constructed, implemented, and maintained throughout the course of the project. In addition, a detailed air modeling and monitoring plan was developed and implemented by CODE at various locations on and off the site under the guidance of the Project Engineer.

CODE excavated impacted soils from under walkways, beneath parking lots, and along the building foundations to depths of 13 fbgs. Select area demolition of sidewalks, stairways, stairwells, lighting fixtures, sheds, and swimming pools was performed as necessary to access the impacted work zones.

A sheet barrier containment wall was constructed around the excavation areas at a distance of 24' from the building foundations to serve as an engineering control against future contamination. The building foundations themselves were high pressure washed and coated with a chemical sealant as an additional engineering control.

Following remedial construction, the site was fully restored to its original condition. The work was conducted on an aggressive schedule to ensure completion before the advent of winter.