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Toxic Contamination From Natural Gas Wells

The New York Times collected data from more than 200 natural gas wells in Pennsylvania.  Many of them are tapping into the Marcellus Shale, a vast underground rock formation. But a method being used to stimulate wells, called hydraulic fracturing, produces wastewater containing corrosive salts and radioactive and carcinogenic materials.In Pennsylvania, this wastewater has been sent through sewage treatment plants that cannot remove some of the contaminants before the water is discharged into rivers and streams that provide drinking water. The Times was able to map 149 of the wells.

NYT Map:visualized by the type of contaminant (radium, uranium, gross alpha and benzene)

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