2:45 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Thursday, April 24 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 4 (northwest of containment berm), 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)

– Re-working ORW 14

Containment/ Roads/ Sinkhole/Survey

– Conducting surface water sampling

– Stockpiling sand for containment berm

– Surveying south containment berm re-route