In this CNN video, residents in rural Pennsylvania are furious over the contamination of their drinking water, and they allege that the natural gas drilling technique known as hydraulic fracturing, or "fracking," is to blame.

One resident has been drawing clean drinking water from his well for 50 years, only to now have it polluted with methane gas. He is able to ignite the vapor from the murky water, and fumes visibly steam over the edge of its container -- certainly not something anyone would judge as potable.

Many of the residents are suing Cabot Oil & Gas who, in the case of the Sautner family, now have to truck in clean drinking water after Pennsylvania's Department of Environmental Protection deemed the company responsible for contamination, though Cabot continues to deny any responsibility, telling CNN, "We don't believe the process is contaminating the groundwater."

Greg Sautner wants the company to build a clean water pipeline and pay for their house, which now has a methane release stack in the yard "to keep it from blowing up," according to Sautner.

"This is the dirty side of natural gas," Julie Sautner tells CNN.

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