2:55 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Monday, Dec. 23 work-

Sinkhole Activity Code 3 – indicating no work is allowed directly on sinkhole or within containment berms. Seismic monitoring indicates further increase in levels of subsurface activity near sinkhole/Oxy 3 – state and parish will continue to closely observe seismic activity to advise of any sudden changes.

Air Monitoring/Sub-slab Sampling and Ventilation

– Conducting ventilation system inspections

ORW/CPT Wells

– Monitoring bubble site 56 (Bayou Corne, north of La 70)

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

Containment Berm/Roads/Sinkhole

– Surveying south containment berm

– Surveying containment berm settlement plates

– Checking sinkhole/swamp water levels

– Surveying Texas Brine water tanks (Oxy 1 pad)