Plan to permanently seal poisonous sinkhole gas well

After discovering the highly poisonous gas, the company informed the DNR Office of Conservation on Wednesday about its plan to seal the well

[link to www.examiner.com]

Material Safety Data Sheet
www.trconsultinggroup.com/safety/msds/h2s.pdf
HYDROGEN SULFIDE

Inhalation: Toxic by inhalation. Release of liquefied product may create atmospheres which can rapidly exceed lethal levels. Acute low level exposure that exceeds the permissible exposure limit will result in irritation of the nose and throat, headache, dizziness, nausea, and nervousness.
Ingestion: Liquid may cause freeze burns and death.

DOT Transportation
Shipping Name: Hydrogen sulfide,liquefied Hazard Class: 2.3 (Poisonous gas) ID Number: UN 1053

Packing Group: Not applicable Marking: Hydrogen Sulfide, liquefied, UN1053, RQ* Inhalation hazard Label: Poison gas and Flammable gas Placard: Poisonous gas/1053 Hazardous Substance/RQ: Hydrogen sulfide/100# Shipping Description: Hydrogen sulfide, liquefied, 2.3 (Poisonous gas), UN 1053, RQ*, Poison - Inhalation Hazard Zone B