Inject and Extract LNAPL BTEX Free Product
ORIN successfully implemented Free Product Removal (FPR) to treat LNAPL & BTEX contaminated soil and groundwater utilizing in-situ chemical oxidation. 56 injection points targeted a vertical extent from 9 feet below ground surface to 15 ft bgs and 14 ft bgs to 20 ft bgs based on depth to ground water using Geoprobe direct push technology. Each DPT point received an average of 100 gallons of treatment chemistry. Vacuum extraction was utilized to remove LNAPL and desorbed contaminants while also providing hydraulic control allowing treatment chemistry to be drawn towards the most contaminated locations.