1:50 p.m. Advisory from the Office of Conservation

The Office of Conservation, in consultation with Assumption Parish Incident Command, is advising the public that the Oxy 3/sinkhole monitoring alert status has been raised to Code 3 – requiring all work inside and around the sinkhole to cease until further notice. Per Dr. Stephen Horton with USGS, seismic monitoring detected several instances of subsurface activity in the area around the sinkhole and Oxy 3 area below the sinkhole, at an estimated rate of more than 10 VLPs (Very Long Profile seismic signals, often indicative of gas or fluid movement) in the early hours of Sunday morning, and personnel near the site have observed surface movement on the western side of the sinkhole area. The seismic activity is limited to the Oxy 3/sinkhole area, showing no indication of impact to the Oxy 1 area. Monitoring is constantly ongoing in the area and Conservation will advise the public of significant changes in subsurface conditions.