Methane gas, which is usually located thousands of feet below the water table, appears to be entering the water wells either through cracks in the bedrock or, more likely, the casing in natural gas wells. Casings are steel and concrete barriers natural gas companies use to line a well where it passes through the water table.
Professionals suspects hydraulic fracturing may be to blame. The process, known as fracking for short, uses vast amounts of chemically-laced water, sand and pressure to crack the shale rock and release the gas. … The combination of expensive energy prices and new drilling technology has unleashed huge amounts of cleaner-burning natural gas in America, and created thousands of well-paying jobs.
But it’s also raised fears over water contamination
Methane Gas levels should be around 9 in your water
Call TP Environmental to evaluate your water today 207-991-0171
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http://www.scientificamerican.com/article.cfm?id=fracking-for-natural-gas-pollutes-water-wells