11:45 a.m. Update from the Office of Conservation

Monday, Dec. 16 work-

Sinkhole Activity Code 1+ – indicating work is allowed on sinkhole and containment berm, however, seismic monitoring indicates levels of sub-surface activity near sinkhole/Oxy 3 have been trending upward over the past two days.

Air Monitoring/Sub-slab Sampling and Ventilation

– Conducting ventilation system inspections


– Removing water from ORWs 6, 16, 19 (south of La. 70, west of containment berm), 26 and 32 (north of La 70, west of Texas Brine facility)

– De-pressurizing ORW 54 (north of La 70, west of Texas Brine facility) to change out wellhead

– Installing pump on ORW 30 (north of containment berm) to remove water

– Pumping ORW 39 (north of containment berm) to re-establish gas flow

Containment Berm/Roads/Sinkhole

– Surveying containment berm settlement plates

– Surveying south containment berm

– Preparing for hydraulic head tests of aquifer monitoring wells