Case History:

New property / business, owner purchased an oil distribution facility that had been handling petroleum for over 70 years. Evidence of free product on the top of the water table in an off-site excavation initiated enforcement actions. UET, a provider of "total solutions" reviewed investigation/assessment reports by others, performed additional investigations to fill in data gaps, submitted a Remedial Action Work Plan (RAW), implemented remedial actions, and is currently providing Monitoring, Operation and Maintenance Services (MOM). The original plan included groundwater pumping to maintain hydraulic control of the plumes (free product and dissolved contamination) with a special product recovery system known as the SPE ProVac System. This system uses high vacuum similar to Dual Phase Extraction but sensors and controls allow the SPE ProVac System to selectively pump free product. After 8 months of groundwater pumping, it was shown that the SPE ProVac could control and recover the free product without the costly and labor intensive groundwater pumping component. The recovery of free product using UETs SPE ProVac System has been very successful, not only reducing the clients costs for pumping, treating and discharging groundwater, but its' continual recovery of the free product is moving client closer to project closure.

Site Configuration:

UET's ProVac System currently is operating in 4 monitoring wells and 1 recovery well that contain free product. In addition, there are 9 monitoring wells without free product. UET's custom configured trailer includes: compressor, vacuum pump, PLC controls, sensors, remote monitoring, and product collection. Additional equipment for the pumping, treating and discharge of groundwater is contained in a separate space but controlled by the Trailer PLC. Re-deployment would only occur if future testing results indicate a need.

To learn more about this case send email to infocase1@uetenvirosys.com