Some citizens of Granville, PA can light their tap water on fire!

Due to odd ground formations throughout Pennsylvania’s landscape and several crudely built water wells, much of the state’s water supply contains a high amount of methane. However, Granville resident Sherry Vargson is among a series of recent cases where drilling for natural gas has caused methane leakage of potentially dangerous proportions. For the past year, Miss Vargson has been forced to cook using water from a jug because her tap water could very easily be set ablaze! With an increase in both the demand for natural gas and these sorts of occurrences industry officials are working to refine the system and prevent these sorts of mishaps in future drilling endeavors.
(source)