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Hydrogen Sulfide Culprit in Deaths at Briery Branch Farm
Toxic Gas From Manure Pit Killed Five People

By Jeff Mellott

MONTEZUMA — A deadly gas that killed five people on a farm south of Briery Branch in early July was Hydrogen Sulfide, and not methane as authorities had previously reported….

A meter reading of the gas at the edge of the pit by rescue workers, Phillips said, was at 700 parts per million.

The amount is well above the 500 parts per million that would have been sufficient to fatally incapacitate someone in a matter of moments.

“Anybody who had gone down there without a complete supply of air for themselves would not have made it back,” Phillips said of the manure pit at the Showalter farm….([1] Full Story)