RENOVA was selected by an environmental engineering firm as the key implementation contractor for remedial activities to address volatile organic compound contamination in soil and shallow groundwater at a former Trenton, New Jersey porcelain factory. The project was complicated by the source area underlying the building footprint. RENOVA began by demolishing 2,100 square feet of the concrete floor to gain access to the impacted soil. RENOVA self-performed the installation of thirty-nine (39) helical piles to protect the structural integrity of the building during remedial activities.

Next, RENOVA excavated 725 tons of impacted soil. Sump pumps were installed throughout the excavation area to temporarily suppress the shallow groundwater table. Approximately 11,500 gallons of groundwater were removed from the site for offsite treatment and disposal. Following the source excavation, a chemical oxidant, sodium persulfate, was blended into the top foot of soil to address residual impacts. RENOVA then backfilled the excavation with ¾” stone to six (6) inches above the groundwater table, with the remainder of the excavation being backfilled with DGA and compacted in 12-inch lifts. Lastly, the concrete floor was restored. RENOVA completed the project on-time to the client’s satisfaction, without any safety incidents.