Strike one coal mine. EPA party on.
But seriously, this is a warning to everyone: have at least 50 gallons of stored potable water in your house. You never know what the reason might be, but you might not be able to drink the water in your plumbing for some reason. Having stored water, and even a filter so you can use surface or rain water safely, can protect your family.
I used to work in the chem industry. I cannot imagine a safety data sheet reading like this!!! You couldn't put distilled water in a 2 ounce bottle and take it into a customer facility with out all kinds if tox tests, LD50's, etc. And a frothing agent is sold in bulk quantities and is not an "unusual" chemical for coal...used very often. So something is darned fishy here! Either this stuff is known as harmless and the EPA is using it to help shut down the coal industry...OR...somebody I charge if the MSDS totally screwed up at OSHA either because of stupidity or complicity. I wouldn't rule out either.