2:50 p.m. Update from the Office of Conservation

Bayou Corne/Grand Bayou Response Activity

Tuesday, Sep. 10 work-

Sinkhole Activity Code 1 – lowest level – seismic activity levels low since slough-in on/near north work pad

Sub-slab Sampling and Ventilation

– Continuing ambient and in-stack gas monitoring on sub-slab ventilation systems

– Vapor monitoring at all locations where vent systems exist

– Removing equipment at 116 Crawfish Stew

– Continuing pressure and vapor testing of vent system at 174 Crawfish Stew

– Retrofitting new profile blowers at 1438 Sauce Piquante

ORW/CPT Wells

– Adjusting chokes on ORWs 28 (west of Texas Brine facility, north of La. 70) and 38 (north of Bayou Corne community, behind Sauce Piquante)

– Installing 66 and 67 (in community, north of La. 70)

– Installing MIHPTs 44 (near intersection of Gumbo and Jambalaya) and 45 (south of Jambalaya)

– Installing DPVE (dual-phase vacuum extraction) well 47-3 and  grouting DPVE 47-2 on Maurice Rd. (ORW work road west of containment berm)