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In a first, federal environment officials today scientifically linked underground water pollution with hydraulic fracturing, concluding that contaminants found in central Wyoming were likely caused by the gas drilling process.
The findings by the Environmental Protection Agency come partway through a separate national study by the agency to determine whether fracking presents a risk to water resources.
In the 121-page draft report released today, EPA officials said that the contamination near the town of Pavillion, Wyo., had most likely seeped up from gas wells and contained at least 10
What really gets me is that it took them this long to figure out that it's harmful. My guess is that they have known for a long while but due to recent pressure they had no choice to admit it.
The strong correlation in time and space as well as a reasonable fit to a physical model suggest that there is a possibility these earthquakes were induced by hydraulic fracturing. However, the uncertainties in the data make it impossible to say with a high degree of certainty whether or not these earthquakes were triggered by natural means or by the nearby hydraulic fracturing operation.
Originally posted by SirMike
The EPA report is makes clear that the geology of the Green River Formation and the Marcellus Shale are very dissimilar. The gas bearing zone in the Pavillion area is at a depth of around 1000ft. This is very close to the groundwater aquifer with some of the local drinking water wells dug to a depth of 800’. According to the EPA’s report, they were injecting directly into the aquifer. I cannot for the life of me understand why the Wyoming DEP even allowed this.
Those pushing this will try their hardest to link the preliminary results in Pavillion to the Marcellus but the Marcellus shale deposit is a completely different beast as the EPA states. It is several thousand feet under the aquifer. Two peer reviewed studies, on of which utilized baseline pre drilling water quality data, surveyed 100’s of wells in Pennsylvania and found no contamination from fracking fluids. Amazingly enough, neither one of these two studies got anywhere near the sensationalistic attention that we are seeing today.
edit on 9-12-2011 by SirMike because: me stupid
Good point! I often wonder if oil companies are just retarded or they just don't give a sh$t.
Then I think that it's all about the almighty dollar. (which is really worthless paper)
Originally posted by sealing
reply to post by Aim64C
I bet with $11+billion a quarter in profits
they could find a way to extract responsibly .
Originally posted by sealing
reply to post by Aim64C
I bet with $11+billion a quarter in profits
they could find a way to extract responsibly .