1:40 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Friday, April 11 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

– Performing gas composition analysis of ventilation systems

ORW/CPT Wells

– Continuing pumping on ORWs 4 (northwest of containment berm) and 14 (Oxy 9 well pad), 48 (north of containment berm) and OGRW 1 (Oxy Geismar 2 well pad)

– Continuing pump test on ORW 39 (north of containment berm)

– Re-strarting pump test on ORW 15 (north of La 70, east of Gumbo Street)

– Removing water from ORW 57 (southeast of Oxy 10 well pad) flare line and preparing to install pump

Containment/ Roads/ Sinkhole/Survey

– Conducting depth log on Oxy 3A (working from Oxy 9 well pad)

– Conducting compaction test on south containment berm re-route, hauling and preparing for placement of geotextile fabric

– Continuing cleanup of sinkhole debris