On December 12, 2007, a Notice of Violation and Proposed Imposition of Civil Penalty in the amount of $3,250 was issued for a Severity Level III problem. The licensee twice failed to use a minimum of two independent controls that form tangible barriers to secure portable gauges from unauthorized removal during a period when the portable gauges were not under the control and constant surveillance of the licensee, resulting in a violation of 10 CFR 30.34(i). Specifically, a gauge was stolen from a temporary job site when the gauge operator walked away from the gauge while the gauge was on the ground behind the back of a pick-up truck. On another occasion the gauge was secured to the truck bed with only one physical control while not under the constant surveillance of an authorized user.