3:25 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Wednesday, Feb. 26 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 19 (west of containment berm) in preparation for de-watering

– Surveying settlement rods on ORW 21 and ORW 38 (north of Sauce Piquante)

Containment Berm/Roads/Sinkhole

– Surveying north containment berm and original south containment berm

– Conducting geotechnical borings near new south containment berm route

– Monitoring industrial water wells