Image of a 3-D resistivity map of the liner below an industrial pond in central Arizona - Image by Chris Baldyga - hydroGEOPHYSICS

A 3-D perspective view color contour map where the height of the anomaly is dictated by the intensity of the leak response. The 3-D contours represent measured voltages across the pond. Deviations from background trends are classified as possible leaks – Hydrogeophysics