[The Cajun]

Last week FOX 8 out of New Orleans reported one of the five relief wells bleeding off pressure around the sinkhole had to be shut down because it was leaking H2S.
Basically with all the problems concerning the sinkhole, now there is H2S added to the mess.

[Blogger]

Today they reported it grew deeper by something like 30 - 145 feet in the month of November. And, the video mentions chloride is migrating from the sinkhole to the Mississippi river and the aquifer.