4:40 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Tuesday, Jan. 14 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

– De-pressurizing ORW 54 (north of La 70, west of Texas Brine facility) to change out wellhead
– Monitoring bubble site 56 (Bayou Corne, north of La 70)
– Removing water from ORWs 10, 19 (west of containment berm) 22, 24 (north of La 70, west of Texas Brine facility) and 39 (north of containment berm)

Containment Berm/Roads/Sinkhole
– Continuing to haul and place sand for construction of new southern berm route
– Clearing access road for installation of ORWs 55 and 56 (west of Bayou Corne, south of Sportsman’s Landing)
– Surveying north and south containment berms
– Surveying containment berm settlement plates
– Sampling aquifer monitoring wells
– Sampling water near sinkhole inflow points