11:35 a.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Tuesday, May 13 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


– 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)

– Conducting workover of ORW 4 (northwest of containment berm)

– Collecting samples from aquifer monitoring wells

– Surveying CPT locations

Containment/ Roads/ Sinkhole/Survey

– Conducting daily berm inspections

– Clearing overgrowth from well and flare locations

– Collecting samples from sinkhole inflow locations

– Cleaning out seismic monitoring station LA 14 (Oxy 9 well pad)

– Re-installing sensor for seismic monitoring station LA 11 (Oxy 10 well pad)