6:15 Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Friday, Feb. 14 work-
Sinkhole Activity Code 1 – indicating work is allowed on sinkhole and within containment berms. Seismic monitoring indicates continued low levels of subsurface activity near sinkhole/Oxy 3.

Air Monitoring/Sub-slab Sampling and Ventilation
– Conducting ventilation system inspections

– Building fence around ORW 58 (south of La 70, west of Texas Brine facility)
– Surveying settlement rods for ORW 38 (north of Sauce Piquante)
– De-watering ORW 21 (north of Sauce Piquante, west of Crawfish Stew) to test for connectivity to aquifer prior to upcoming pump test
– Securing water drum on platform at Bubble Site 56 passive vent well site (west side of Bayou Corne, north of La 70)

Containment Berm/Roads/Sinkhole
– Conducting depth/pressure logging on Oxy 3A (working from Oxy 9 well pad)
– Placing silt fence along ORW access road on west side of Bayou Corne, south of La 70
– Laying out dewatering piping west of containment berm for ORWs 6, 9, 18, 19
– Continuing placing sand on new south containment berm route, connecting the western section
– Surveying north containment berm and original south containment berm
– Collecting surface water samples