2:00 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Wednesday, Aug. 28 work-

Sinkhole Activity Code 3 – highest level – though seismic activity has not been elevated since last week’s event, work within berms/directly on sinkhole is being suspended as a precaution while new safety protocols based on observations from the most recent slough-in are finalized

Sub-slab Sampling and Ventilation

– Installing pressure sub-slab pressure monitoring at 174 Crawfish Stew

– Ending sub-slab pressure monitoring at 1408 Sauce Piquante

– Conducting ambient and in-stack monitoring of all installed sub-slab ventilation systems

ORW/CPT Wells

– Testing ORW 42 (north of La. 70, west of Texas Brine facility)

– Grouting ORW 48 (south of La. 70, west of Texas Brine facility)

– Setting up to begin installation of ORW 46 (east of Bayou Corne, south of La. 70)

– Removing water from ORWs 17,18,19 (west of containment berm)

– Installing CPT 24 (Oxy 1 well pad)

– Testing dual-phase vacuum extraction system for removal of gas from shallow sands

– Sampling aquifer monitoring wells

Containment Berm/Roads/Sinkhole

– Work within berm/directly on sinkhole suspended due to recent sloughing along east side between access points at Oxy 3 well pad and north berm work pad, pending new safety protocols being finalized