GPR survey to delineate edges of USTs at a gas station
PROJECT: GPR survey with confirmatory drilling
LOCATION: Moyie Springs, Idaho
PROJECT DESCRIPTION: Performed a saturation GPR survey of an active gas station, to identify / locate the edges and ends of three inactive closed-in-place USTs. Performed onsite instrument 'calibration' with active UST, to establish reliable depth estimates. Recommended desired drilling locations (within 2-3 feet of tank ends) for environmental sampling required to obtain regulatory tank closure. Drilling confirmed near-tank backfill and never breached any of the tanks.