A Missouri Geological Survey geologist team wrapped up their data collection today about 2 pm. at the sinkhole just south of Rich Hill.Assorted ERT readings were recorded at various depths and resolutions. The data collected will be reviewed, once they return to Rolla, by other staff experts to try to determine how big and how deep the cavity under the sinkhole may be, and then formulate a recommended mediation plan.That report is expected sometime next week.
Electrical Resistivity Tomography (ERT) is an electrical testing method where current is induced in the ground using two current electrodes.
