3:00 p.m. Activity Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Thursday, Aug. 8 work-

Sinkhole Activity Code 1 – lowest level, indicating little seismic activity detected near sinkhole/Oxy 3

– Continuing sub-slab pressure monitoring at 107 and 108 Crawfish Stew, 1433 Sauce Piquante

– Beginning pressure monitoring at 1421 Sportsman Drive

– Conducting ambient air monitoring around ventilation systems at 116 and 135 Crawfish Stew

– Excavating and preparing footing for sub-slab ventilation systems at 1433 Sauce Piquante

ORW/CPT Wells

– Removing water on ORWs 1, 15 and 22 (north side of La. 70, west of Texas Brine facility), ORWs 16 and 26 (south side of La. 70, west of Texas Brine facility) and ORW 19 (west of containment berm)

– MIHPT testing work near ORW 38 (north of community, behind Sauce Piquante) – Membrane Interface Probe/Hydraulic Profiling Tool is intended to provide direct detection of natural gas to more readily determine location of subsurface gas zones in and near aquifer

– Completing CPT-63 (north of La. 70, east of Gumbo)

– Installing pressure monitoring well at CPT 84 location (northwest of containment berm)

– Installing aquifer monitoring well on Oxy 3 well pad

Containment Berm/Roads/Sinkhole

– Placing clay on southern containment berm

– Placing clay and limestone on eastern containment berm