LAC 43:XVII.3133. Cavern Capacity Limits

A. The waste volume permitted for disposal into a salt cavern may not exceed 90 percent of the salt cavern volume measured from the sonar caliper survey submitted as part of the permit application. Upon reaching the permitted waste volume, the owner or operator shall remove the salt cavern from further waste disposal service and within seven days notify the Office of Conservation of such. Due to the potential for salt cavern enlargement resulting from disposal of undersaturated fluids, the operator may request a modification to the permit to allow for a continued waste disposal based on the findings of a new cavern capacity survey. If the Office of Conservation denies the request for permit modification, the operator shall begin preparations for salt cavern closure per approved updated closure and post-closure plan. The operator shall maintain a strict accounting of the waste volume disposed into the salt cavern, the fluid volume displaced from the salt cavern, and the salt cavern volume.