3:35 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Tuesday, Sep. 24 work-

Sinkhole Activity Code 1 – lowest level – no detection of significant elevation of seismic activity in area of sinkhole/Oxy 3 cavern

Sub-slab Sampling and Ventilation

– Installing air monitors (H2S and LEL) at 135 Sportsmans Drive

– Dewatering ports at all installed ventilation systems

ORW/CPT Wells

– Monitoring pump drawdown tests of OGRW 1 (Oxy 2 well pad) and ORW 9 (west of containment berm)

– Reworking ORWs 30 and 31 (off northwest corner of containment berm)

– Beginning drawdown tests on ORWs 39 and 40 (north of containment berm) for drawdown test

– Installing CPT 92 (Edmonds Rd)

– Installing MIHPTs 14 and 29 (Texas Brine facility)

– Connecting DPVE 47 to tank (access road west of containment berm)

– Grouting DPVE 37 and related pressure monitoring wells (east of Sportsmans Landing, near La 70)

Containment Berm/Roads/Sinkhole

– Installing gates on containment berm entries