Yuma International Airport

Harris Environmental with sub-consultant SCS Engineers, conducted soil sampling and investigation services at the Yuma International Airport (YIA) in Yuma, Arizona on a former helipad site at the former Yuma Air Branch Facility. This investigation was performed to evaluate whether the soils at the former helipad, which was used by the United States Customs and Border Protection Office of Air and Marine, were contaminated with petroleum constituents. Two known fuel spills (140 and 40 gallons) were documented north of the helipad and in the northeast portion of the site. While there were no documented fuel spills on the helipad; with nearly 30 years of continuous refueling operations, soil could potentially have been impacted by repeated small-scale spills of Jet-A fuel. Fifteen soil borings were drilled using direct-push (Geoprobe®) technology operated by Johnson Environmental Technologies. Collection and analysis of soil samples identified low concentrations of several PAHs in three surface samples; however, none of the results exceeded established Arizona soil remediation levels.