12 noon Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Thursday, Jan. 16 work-

Sinkhole Activity Code 1 – indicating work is allowed on sinkhole and within containment berms. Seismic monitoring indicates continued low levels of subsurface activity near sinkhole/Oxy 3.

Air Monitoring/Sub-slab Sampling and Ventilation

– Conducting ventilation system inspections

ORW/CPT Wells

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

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

– Removing water from ORWs 10, 19 (west of containment berm) 22, (north of La 70, west of Texas Brine facility) and 32 (north of containment berm)

– Drilling passive vent well PVW-03 (Sportsman’s Landing)

– Preparing to clear path from Oxy 9 well pad to planned ORW 57 site

– Sampling water removed from ORWs

Containment Berm/Roads/Sinkhole

– Continuing to haul and place sand for construction of new southern berm route

– Clearing access road for installation of ORWs 55 and 56 (west of Bayou Corne, south of Sportsman’s Landing)

– Logging Oxy 3A (working from Oxy 9 well pad)

– Sampling aquifer monitoring wells

– Re-locating tilt meters south of sinkhole