Exploratory rig being assembled approx 950â from the sinkhole, Aug 16 by Assumption Parish Police Jury, used with permission
It has been determined that Oxy Geismar Well No. 3 (serial number: 180708) is the cause of the sink hole. The well was first permitted in April 15, 1982 for the mining of salt water brine from the Napoleonville Salt Dome. In 1995 Texas Brine received permission from the Louisiana Department of Natural Resources to pump soil contaminated with Naturally Occurring Radioactive Material (NORM) into the well.
In early September 2010, Texas Brine began reworking the cavern well, milling a section of salt higher than the existing cavern roof, at 3,400 feet deep, to see if the upper strata could be mined. A DNR permit for that work was issued in May 2010. In 2011 the well failed a pressure test showing that the integrity of the well had been lost. Texas Brine Company sent a letter to Louisiana Department of Natural Resources reporting the failed test and expressing concern over the possibility that "a breach out of the salt dome appears possible."
On June 6, 2011, the well bore above the cavern was plugged with cement.
Bubbling and odors were reported in the nearby bayous, and the sinkhole appeared on Aug. 3.
(ADDITIONAL INFO, ADDED ON FRIDAY MORNING:
At 10:40 EDT on Aug 17, I got another email from Wilma Subra:
"An additional 20 feet on the east side of the sink hole were noted sloughed off this morning.")
Parish officials, DEQ, LDWF agents depart to take air samples @ sinkhole site. by Assumption Parish Police Jury, used with permission
A Texas Brine Co. LLC contractor will begin distributing weekly housing assistance checks on Friday, Aug. 17, to evacuees.
Alligators reside in the bayou, and are reportedly still there. Hopefully, someone is paying close attention to their behavior, and will take notice if they all suddenly leave.
American Alligator by wiki. Public domain photo via NASA.
See also related OpEdNews quicklink: Sinkhole: H-Bomb explosion Equivalent in SE Louisiana Possible at click here
Pdf of Aug 6th map click here
Map of the Bayou Corne Sinkhole Incident (continually updated) Accessed Aug 16 2012
Louisiana Environmental Action Network (LEAN)
The purpose of the Louisiana Environmental Action Network (LEAN) is to foster cooperation and communication between individual citizens and corporate and government organizations in an effort to assess and mend the environmental problems in Louisiana. LEAN's goal is the creation and maintenance of a cleaner and healthier environment for all of the inhabitants of this state.
Assumption Parish Police Jury website updates (Accessed Aug 16 2012) at:
Flickr site with pictures relevant to the situation in Bayou Corne have been posted and will be updated daily. http://www.flickr.com/photos/assumptionoep/sets/ (Accessed Aug 16 2012)
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