11:10 a.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Friday, Feb. 21 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

– Installing check valve on ORW 21 (north of Sauce Piquante, west of Crawfish Stew) for pump test

– Installing new pump and check valve on ORW 39 (north of containment berm) in preparation for de-watering

– Connecting de-watering piping along ORWs south of La 70 for future 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