4:35 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Wednesday, Oct. 23 work-

Sinkhole Activity Code 2 – indicating no work is allowed directly on sinkhole, elevated due to seismic monitoring indicating trend of increased MEQ (micro-earthquake) activity near sinkhole/Oxy 3

Sub-slab Sampling and Ventilation

– Adjusting vacuum pressure on fans of sub-slab ventilation systems

– Conducting bi-weekly in-home air monitoring in Texas Brine-acquired houses

ORW/CPT Wells

– Monitoring pump drawdown tests of OGRW 1 (Oxy 2 well pad)

– Continuing pump test on ORWs 39 and 40 (north of containment berm)

– Removing water from ORW 6 (west of containment berm)

– Installing ORW 53 (west of Bayou Corne, south of La 70)

– Installing CPT 95 (Sportsman’s Drive)

– Shutting down DPVE 47 test (west of containment berm) 

Containment Berm/Roads/Sinkhole

– Setting new reflectors around sinkhole

– Surveying DPVE 47 settlement plates

– Preparing for pressure reduction operations in Oxy 3A (working from Oxy 9 pad), estimate moving equipment in Monday, Oct. 28, and beginning pressure reduction operation Wednesday, Oct. 30