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CHEYENNE, Wyo. — The U.S. Environmental Protection Agency announced today for the first time that fracking — a controversial method of improving the productivity of oil and gas wells — may be to blame for causing groundwater pollution.
The draft finding could have a chilling effect in states like Pennsylvania trying to determine how to regulate the process.
The fracking occurred below the level of the drinking water aquifer and close to water wells, the EPA said. Elsewhere, drilling is more remote and fracking occurs much deeper than the level of groundwater that would normally be used.
Now if only they would do a little more research to determine if fracking actually causes earthquakes as well!!
ARKANSAS EARTHQUAKE AND DRILLING HISTORY
When comparing Arkansas’ earthquake history with its drilling history, a causative correlation becomes obvious.
The entire 19th century saw 15 recorded earthquakes and none in the first decade of the new century. A total of 694 quakes rocked Arkansas in the 20th century. That number was surpassed in 2009-2010, with the bulk (483) occurring the last three months of 2010. Table 1 was prepared using complete quake data thru 2009 , complete data from August thru December, 2010 , and just North Central Arkansas quake data from January thru July, 2010. 
Arkla, Inc., through its many morphs, mergers and acquisitions, is and has been a key gas driller in Arkansas. Between 1975 and the early 1980s, the company found more gas than it produced. By 1982, Arkla was able to sell Central Louisiana Electric Company more than 100 million cubic feet of gas daily. By the early 1990s, it operated the sixth-largest pipeline system in the United States and was among the ten largest operators of natural gas reserves.  Its production timeline coincides with the massive jump in earthquakes in the 1970s and 1980s. Today, 37 companies drill for gas and oil in Arkansas.