11:40 a.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Tuesday, May 20 work-

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

Air Monitoring/Sub-slab Sampling and Ventilation

– Conducting ventilation system inspections

ORW/CPT Wells

– Continuing pumping on ORWs 14 (Oxy 9 well pad), 15 (north of La 70, east of Gumbo Street), 48 (north of containment berm) and 54 (west of Bayou Corne, south of La 70)

– Placing board mats and mobilizing rig to begin installing PMW-07 (148 Sportsman’s Drive)

Containment/ Roads/ Sinkhole/Survey

– Conducting daily berm inspections

– Plugging LA 15 and LA16 seismic monitoring wells on Texas Brine facility

– Cutting grass on ORW areas west of Bayou Corne, and Texas Brine properties north of La 70 to the east of Bayou Corne

– Sampling sinkhole inflow water