Title: Slough-In Occurance/Advisory from the Office of Conservation
Source: Assumption Parish Police Jury
Date: March 26, 2013 at 2:25p ET
The Office of Conservation, in consultation with Assumption Parish Incident Command, is advising the public that a slough-in occurred last night along the southeastern side of the sinkhole – approximately 25 trees fell into the sinkhole along the southeastern side and a new crack, running parallel to the sinkhole edge, was observed on the Oxy 3 well pad access ramp to the sinkhole. Experts with Conservation and CB&I believe the slough-in event is linked to the period of elevated subsurface fluid and gas movement detected late last week in the area around the sinkhole and Oxy 3, as has been observed in previous similar events. At this time, the Oxy3/sinkhole monitoring alert status remains at Code 1, allowing work around the sinkhole to continue, as the slough-in appears to be related to the earlier subsurface activity – however, monitoring is constantly ongoing in the area and Conservation will advise the public of significant changes in subsurface conditions.
The Advocate. 3:05p ET: Work continues as sinkhole swallows more trees [...] About 25 trees fell into the Assumption Parish sinkhole and a new crack formed in a earthen well pad south of the lake-like slurry hole Monday night, state regulators said. [...] Conservation officials reported that experts working for the agency believe the slough-in and cracked well pad are linked to the prior seismic events so work could continue. [...] The latest acreage was not immediately available. [...]
See also: Paper: 'Very long period' tremors increasing at giant Louisiana sinkhole -- Indicates gas and 'liquid' moving underground
Published: March 26th, 2013 at 3:06 pm ET