12:55 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity
Tuesday, Dec. 10 work-
Sinkhole Activity Code 1 ā€“ indicating work is allowed on sinkhole and containment berm, seismic monitoring indicates low levels of sub-surface activity near sinkhole/Oxy 3

Air Monitoring/Sub-slab Sampling and Ventilation
– Conducting ventilation system inspections

– Installing transducer on ORW 48 (south of La 70, north of containment berm)
– Setting well pad cement near DPVE 47 site (west of containment berm)
– Changing out wellhead on ORW 54 (south of La 70, west of Bayou Corne)
– Re-working ORW 32 (north of La 70, west of Texas Brine facility) and ORW 38 (north of community, behind Sauce Piquante)
– Conducting maintenance on Oxy 3A wellhead (Oxy 9 wellpad)

Containment Berm/Roads/Sinkhole
– Surveying containment berm settlement plates
– Monthly sampling of aquifer wells