12 noon Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Monday, May 19 work-

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

Air Monitoring/Sub-slab Sampling and Ventilation

- Conducting ventilation system inspections

ORW/CPT Wells

- Continuing pumping on ORWs 14 (Oxy 9 well pad), 15 (north of La 70, east of Gumbo Street), 48 (north of containment berm) and 54 (west of Bayou Corne, south of La 70)

- Changing out pump for ORW 4 (northwest of containment berm)

- Performing maintenance on pump for ORW 14 (Oxy 9 well pad)

- Placing board mats and mobilizing rig to begin installing PMW-07 (148 Sportsman’s Drive)

Containment/ Roads/ Sinkhole/Survey

- Conducting daily berm inspections

- Changing out ORW 57 wellhead

- Conducting logging of Oxy 2

- Cutting grass on ORW areas west of Bayou Corne, and Texas Brine properties north of La 70 to the east of Bayou Corne

11:35 a.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Tuesday, May 13 work-

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

Air Monitoring/Sub-slab Sampling and Ventilation

- Conducting ventilation system inspections

ORW/CPT Wells

- Continuing pumping on ORWs 14 (Oxy 9 well pad), 15 (north of La 70, east of Gumbo Street), 48 (north of containment berm) and 54 (west of Bayou Corne, south of La 70)

- Conducting workover of ORW 4 (northwest of containment berm)

- Collecting samples from aquifer monitoring wells

- Surveying CPT locations

Containment/ Roads/ Sinkhole/Survey

- Conducting daily berm inspections

- Clearing overgrowth from well and flare locations

- Collecting samples from sinkhole inflow locations

- Cleaning out seismic monitoring station LA 14 (Oxy 9 well pad)

- Re-installing sensor for seismic monitoring station LA 11 (Oxy 10 well pad)

11:45 a.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Monday, May 12 work-

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

Air Monitoring/Sub-slab Sampling and Ventilation

- Conducting ventilation system inspections

ORW/CPT Wells

- Continuing pumping on ORWs 14 (Oxy 9 well pad), 15 (north of La 70, east of Gumbo Street), 48 (north of containment berm) and 54 (west of Bayou Corne, south of La 70)

- Placing mats in preparation for installing CPT 127 (148 Sportsman’s Drive)

Containment/ Roads/ Sinkhole/Survey

- Conducting daily berm inspections

- Cleaning out seismic monitoring stations LA 11 (Oxy 10 well pad) and LA 14 (Oxy 9 well pad) and removing sensors 

12:45 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Tuesday, May 6 work-

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

Air Monitoring/Sub-slab Sampling and Ventilation

- Conducting ventilation system inspections

ORW/CPT Wells

- Continuing pumping on ORWs 14 (Oxy 9 well pad), 15 (north of La 70, east of Gumbo Street), 48 (north of containment berm) and 54 (west of Bayou Corne, south of La 70)

- Pulling pump on ORW 4 (northwest of containment berm) repair/replace

- Installing CPT 129 near ORW 57 (east of Oxy 9 well pad) access road

- Sampling bubble sites

Containment/ Roads/ Sinkhole/Survey

- Installing gates on new south containment berm

- Placing hydro mulch around new south containment berm

- Assembling rig for workover on Oxy 2

12:15 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Monday, May 5 work-

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

Air Monitoring/Sub-slab Sampling and Ventilation

- Conducting ventilation system inspections

ORW/CPT Wells

- Continuing pumping on ORWs 4 (northwest of containment berm), 14 (Oxy 9 well pad), 15 (north of La 70, east of Gumbo Street), 48 (north of containment berm) and 54 (west of Bayou Corne, south of La 70)

- Installing CPT 129 near ORW 57 (east of Oxy 9 well pad) access road

Containment/ Roads/ Sinkhole/Survey

- Installing gates on new south containment berm

- Assembling rig for workover on Oxy 2

11:55 a.m. Bayou Crab Bridge Update

**Unrelated to sinkhole**

The Highway 400 Bridge (Bayou Crab Bridge) over Cancienne Canal replacement project is NOW COMPLETE. All work and inspections are complete and the bridge is open to traffic. 

We appreciate your patience and cooperation during this process.

3:15 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Thursday, May 1 work-

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

Air Monitoring/Sub-slab Sampling and Ventilation

- Conducting ventilation system inspections

ORW/CPT Wells

- Continuing pumping on ORWs 4 (northwest of containment berm), 14 (Oxy 9 well pad), 15 (north of La 70, east of Gumbo Street), 48 (north of containment berm) and 54 (west of Bayou Corne, south of La 70)

Containment/ Roads/ Sinkhole/Survey

- Placing limestone on new south containment berm

- Mounting new tiltmeter near sinkhole

- Preparing for workover on Oxy 2