4:30 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Thursday, Aug. 29 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

– Continuing pressure monitoring at 174 Crawfish Stew

– Ending pressure monitoring and removing monitor from 1408 Sauce Piquante

– Continuing gas monitoring on sub-slab ports at 134 Sportsman Dr., 1402 Jambalaya, 1457 Sauce Piquante, and 1422 Sauce Piquante

– Continuing monitoring of ventilation systems at 1465 Sauce Piquante and 116 Crawfish Stew

ORW/CPT Wells

– Connecting ORWs 43 and 48 to flare (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 ORW 3 (west of containment Bayou Corne, south of La. 70)

– Installing CPT 23 (Oxy 3 access road)

– Installing shallow aquifer monitoring well MRAA 4S (north of containment berm)

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

Containment Berm/Roads/Sinkhole

– Measuring water levels inside containment berm and inspecting berm integrity