Magnetometer and gradiometer surveys for detection of underground storage tanks

Remediation of sites where hazardous substances can invade or have invaded ground-water supplies is a global concern. Detection and location of underground steel storage tanks can be readily accomplished using magnetometer and magnetic gradiometer surveys, which are a passive variety of remote sensing. This paper presents investigations at two sites at Hill Air Force Base, northern Utah. In each case, magnetometer and gradiometer data have proven to be valuable for assessing the possibilities of existence and location of buried underground storage tanks. Relevant magnetic-field principles are reviewed and methods of data acquisition, reduction, analysis and interpretation are described. -from Author