11:20 a.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Tuesday, Nov. 12 work-

Sinkhole Activity Code 1 – indicating work is allowed on sinkhole and containment berm, seismic monitoring indicates low levels of sub-surface activity near sinkhole/Oxy 3

Sub-slab Sampling and Ventilation

– Conducting ventilation system inspections and air monitoring


– Continuing pump test of ORW 40 (north of containment berm)

– Pumping ORW 10 (west of containment berm) to enhance gas flow

– Completing drilling of deep aquifer monitoring well MRAA 05D (south of containment berm)

– Laying out path for horizontal borings for gas/water collection lines along Sportsman’s Drive

Containment/ Roads/ Sinkhole

– Surveying containment berm settlement plates

– Collecting sinkhole outfall samples

– Conducting sinkhole depth survey

– Moving and setting new reflectors in and around sinkhole

– Placing limestone on roads to ORWs 52 and 53 (west of Bayou Corne, south of La 70)