Dänk 42Ø <
da...@420.org> wrote in
news:iqKdnV8yzfnNigTM...@earthlink.com:
> Unfortunately, fracking has been known to pollute the underground water
> table with toxic hydrocarbons like benzene.
There is no credible evidence this is true, even though some studies have
made that claim, as the GAO report explained:
* In 2011, the Center for Rural Pennsylvania analyzed water samples taken
from 48 private water wells located within about 2,500 feet of a shale
gas well in the Marcellus Shale.
* In 2011, researchers from Duke University studied shale gas drilling
and hydraulic fracturing and the potential effects on shallow groundwater
systems near the Marcellus Shale in Pennsylvania and the Utica Shale in
New York. Sixty drinking water samples were collected in Pennsylvania and
New York from bedrock aquifers that The analysis compared predrilling
samples to postdrilling samples to identify any changes to water quality.
The analysis showed that there were no statistically significant
increases in pollutants prominent in drilling waste fluids—such as total
dissolved solids, chloride, sodium, sulfate, barium, and strontium—and no
statistically significant increases in methane. The study concluded that
gas well drilling had not had a significant effect on the water quality
of nearby drinking water wells.
The study found that methane concentrations were detected generally in 51
drinking water wells across the region - regardless of whether shale gas
drilling occurred in the area—but that concentrations of methane were
substantially higher closer to shale gas wells. However, the researchers
reported that a source of the contamination could not be determined.
Further, the researchers reported that they found no evidence of
fracturing fluid in any of the samples.
• In 2011, the Ground Water Protection Council evaluated state agency
groundwater investigation findings in Texas and categorized the
determinations regarding causes of groundwater contamination resulting
from the oil and gas industry. During the study period—from 1993 through
2008—multistaged hydraulic fracturing stimulations were performed in over
16,000 horizontal shale gas wells. The evaluation of the state
investigations found that there were no incidents of groundwater
contamination caused by hydraulic fracturing.
In addition, regulatory officials we met with from eight states—Arkansas,
Colorado, Louisiana, North Dakota, Ohio, Oklahoma, Pennsylvania, and
Texas—told us that, based on state investigations, the hydraulic
fracturing process has not been identified as a cause of groundwater
contamination within their states.
A number of studies discuss the potential contamination of water from the
hydraulic fracturing process in shale formations. However, according
toseveral studies we reviewed, there are insufficient data for
predevelopment (or baseline) conditions for groundwater. Without data to
compare predrilling conditions to postdrilling conditions, it is
difficult to determine if adverse effects were the result of oil and gas
development, natural occurrences, or other activities.
The GAO report is extensive, and very well documented. It seems (to me) a
far cry from the hysteria emanating from the rabid environmental crowd,
and certainly well worth the time it takes to read it.
http://kenmcvay.com/fracking/
--
Enjoy Internet Privacy And Anonymity:
http://hidemyass.com/vpn/r6995:5/
Leftists think and act like protofascists. Control is the key. And
control through fear, threat of force, and rhetorical intimidation
is the modus operandi. (Ben Shapro, "Bullies")