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League's
Forum on
"FRACKING:
FACTS AND FEARS"
Wednesday,
February 29th,
7:00 pm UD School of Law,
Keller Hall; Courtroom
Free parking Lot A corner Stewart/Alberta
Streets,
one block away
All League meetings are free and open to the
public.
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Bring your questions for
a panel of local experts as we explore the
environmental and legal issues of the controversial
process called fracking.
Have you been hearing about thousands of potential jobs and the potential
windfall tax revenues from the process of natural gas
extraction called horizontal hydraulic fracturing of
the underground shale rock layers, commonly known as
fracking? Have you also been hearing about earthquake
near Youngstown apparently caused by injection of used
fracking fluid into deep wells? And have you also been
hearing reports of contaminated residential wells, the
threats to aquifers and surface waters, and about sick
people and animals near the fracking sites? Join us on
February 29th as we explore the Facts and Fears of
Fracking.
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So,
what is fracking? First, some geology. Ohio has two
types of underground shale layers: the shallower
Marcellus shale in eastern Ohio where active fracking
in going on now, and the deeper Utica shale layer
which is under most of the state. Utica shale also
contains oil. Drilling leases are being signed in many
parts of the state, including Fayette County
(Washington Court House). Vertical drilling leases
have been signed in Greene County. Estimates are that
95% of residents of Carroll County in eastern Ohio
signed drilling leases by the close of 2011.
In the November, 2011 issue of Scientific American
magazine, author Chris Mooney explains that the
process of hydraulic fracturing of underground shale
rock to extract natural gas (methane) began in the
1940's, but what is new is the ability to do deep
drilling vertically and then horizontally which can
free up massive amounts of this trapped methane gas.
Chemically treated water and sand are injected at high
pressure to crack the shale and keep the fissures open
for gas extraction. The toxicity of this chemical mix,
which the gas companies call "brine" and
environmentalists call fracking fluid, does not have
to be disclosed because the companies won
Congressional approval to have it considered a trade
secret. In a drilling area companies may drill a dozen
or more vertical wells over a mile deep and then drill
horizontally for long distances. About 20% of the
fracking fluid comes back up out of the drillings
shaft and must be disposed of. The industry prefers
either to re-use the fluid if possible, or to inject
the used fracking into high pressure injection
wells. Eastern Ohio has 177 of these wells
including the now-closed one near Youngstown where 11
earthquakes have occurred since March, 2011.
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