Excuse if this has been posted to this thread already but there was another event that maybe exacerbating this current situation

snip...In 20 November 1980, when the disaster took place, the Diamond Crystal Salt Company operated the Jefferson Island salt mine under the lake, while a Texaco oil rig drilled down from the surface of the lake searching for petroleum. Due to a miscalculation, the 14-inch (36 cm) drill bit entered the mine, starting a remarkable chain of events which at the time turned an almost 10-foot (3.0 m) deep freshwater lake into a salt water lake with a deep hole. It is difficult to determine exactly what occurred, as all of the evidence...snip
Thread: Danger of a giant water sinkhole in the gulf, happened before in Lake Peigneur Louisiana in 1980, THANKS TO OIL DRILLING

Also, there's another thread where a US Senator is referring to this event as a genocide.
Thread: Senator: Louisiana sinkhole a catastrophic Lake Peigneur genocide in progress