10:40 a.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Wednesday, Dec. 11 work-

Sinkhole Activity Code 1 – 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

ORW/CPT Wells

– Removing water from ORW 13 (Oxy 10 well pad) and ORW 31 (south of La 70, northwest of containment berm)

– Pouring well pad cement near DPVE 47 site and pressure monitoring well PMW 16 (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)

– Installing pressure recording equipment on ORWs 49, 50 (Sportsman’s Landing), 52 and 53 (south of La 70, west of Bayou Corne)

Containment Berm/Roads/Sinkhole

– Surveying containment berm settlement plates

– Surveying south containment berm

– Monthly sampling of aquifer wells