4:00 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Thursday, Feb. 27 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

– Continuing ORW 21 pump test (north of Sauce Piquante, west of Crawfish Stew)

– Conducting pump test on ORW 18 (west of containment berm) in preparation for de-watering

– Doing workovers on ORW 4 (northwest of containment berm) and ORW 14 (Oxy 10 well pad)

Containment Berm/Roads/Sinkhole

– Installing settlement plates along new south containment berm route

– Installing additional turbidity curtain along Bayou Corne side of new south containment berm

– Conducting water sampling of aquifer