Fracking at Marcellus Shale Site: Hydraulic Fracturing Increases Radionuclides

The Marcellus Shale formation is a prime location for fracking. Image by the US Geological Survey

It’s a controversial subject at best, but there may be solid reasons to regulate hydraulic fracturing, or fracking, in areas like the Marcellus Shale site. In addition to the numerous other environmental  concerns, such as the unknown chemicals seeping into groundwater supplies, the concentration of radionuclides in the water, pipes, and equipment of a fracking site present a danger to workers and local residents.

The process of extraction of natural gas from black shale has been around a long time, but public concern has increased in recent years. Both public and private figures are calling for stricter regulations on hydraulic fracturing, also known as hydro-fracking. In states that allow this process, there have been cases of  environmental pollution, including: contaminated ground water and increased levels of illness. In addition, the companies may provide no plan for efficient waste handling or accident mitigation, and potentially-harmful concentrations of radioactivity are released into the environment.

Marcellus Shale

The Marcellus Shale site is located in the north-eastern region of the United States. This area spans underground from Ohio and West Virginia northeast into Pennsylvania and southern New York. Small areas of gas-shale also exist in areas of Maryland, Kentucky, Tennessee and Virginia.

Marcellus is a black shale with a detectable radioactive signature, which has become a major natural gas supplier, referred to as a super gas field. Low density, and organically rich, the depth spans to more than a mile below the earth’s surface. Recent estimates put the natural gas potential at 500 trillion cubic feet. A comparison for just how large this is; New York uses about 1.1 trillion cubic feet of gas per year. With new technology for fracking and the construction of a pipeline, interest in exploiting this resource has increased dramatically.

Hydraulic Fracturing: Chemistry of Fracking

The basis for this process is horizontal drilling. A vertical well is drilled down to the appropriate depth, containing the gas-containing shale, and then is curved horizontally within the subject rock.

Marcellus Shale Gas Drilling Tower: Image by Ruhrfisch

Providing maximum exposure to the gas-bearing rocks, a solution of water, sand, and chemicals are pumped through the shale at high pressure to create fracturing in the rock. This process releases the gas. The proprietary chemicals used in this process might include: a biocide, gel, friction reducer, other agents to prevent corrosion of the pipes, and a material such as sand, to keep the fracture open for gas release.

Click to Read Page Two: Radioactive Pollution at Marcellus Shale Site?

© Copyright 2011 Judy Haar, All rights Reserved. Written For: Decoded Science
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  1. richard clark says

    why are the chemicals unknown that you claim are seeping into groundwater
    and why don’t you a water distiller like i do?

    • says

      because very wealthy “E&P” (Exploitation and Pollution) corporations, drillers and lease speculators; have paid (and threatened to fund opponents of ) government regulation and legislators and high officials, at all levels, to exempt them not only from polluting (Clean Water/Air Act ‘Halliburton loopholes’) but from even disclosing with what (and how much) they’re being permitted to poison and pump billions of gallons of permanently fouled water into the ground, and LEAVE 90% of it there.


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