2:15 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Wednesday, Feb. 12 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

– Finishing surface work on ORWs 55, 56 (west of Bayou Corne, south of Sportsman’s Landing), 57 (east of Oxy 10 well pad) and 58 (south of La 70, west of Texas Brine facility)

– Opening ORWs 57 and 58 to flare

– Surveying settlement rods around ORW 38 (north of Sauce Piquante)

Containment Berm/Roads/Sinkhole

– Surveying original south containment berm

– Collecting surface water samples

– Placing silt fence along ORW access road on west side of Bayou Corne, south of La 70

– Conducting sinkhole depth survey