If you know one thing about fracking, it might be that the wells have been linked to explosive tap water. Of course, a tendency toward combustion isn't the biggest problem with gas-infused water; it's what could happen to you when you drink it. Although the natural gas industry is notoriously tight-lipped about the ingredients of the chemical cocktails that get pumped down into wells, by now it's widely known that the list often includes some pretty scary, dangerous stuff, including hydrochloric acid and ethylene glycol (a.k.a.