Many of you have probably seen this letter from an environmental engineering technician but I wanted to share it here in case you missed it. This engineer is not telling us anything that we didn’t already know by applying common sense science. He focuses on New York but the same principles apply for anywhere.
Hydrofracking sure to contaminate water
TUESDAY, DECEMBER 13, 2011
As an environmental engineering technician with NYSDEC Region 5, I managed scores of groundwater remediation projects in the 1990s. I’ve reviewed countless hydrogeologic reports and seen thousands of lab results from contaminated wells. I’m familiar with the fate and transport of contaminants in fractured media, and let me be clear:
Hydraulic fracturing as it’s practiced today will contaminate our aquifers.
Not might contaminate our aquifers. Hydraulic fracturing will contaminate New York’s aquifers. If you were looking for a way to poison the drinking water supply, here in the Northeast you couldn’t find a more chillingly effective and thorough method of doing so than with hydraulic fracturing.
My experience investigating and remediating contaminated groundwater taught me some lessons. There’s no such thing as a perfect well seal. Occasionally sooner, often later, well seals can and do fail, period.
No confining layer is completely competent; all geologic strata leak to some extent. The fact that a less-transmissive layer lies between the drill zone and a well does not protect the well from contamination.
A drinking water well is never in “solid” rock. If it were, it would be a dry hole in the ground. As water moves through joints, fissures and bedding planes into a well, so do contaminants. In fractured media such as shale, water follows preferential pathways, moving fast and far, miles per week in some cases.
In the absence of oxygen (such as under the ground), organic compounds break down infinitesimally slowly. Chemicals injected into the aquifer will persist for many lifetimes.
When contamination occurs—and it will occur— we will all pay for it, regardless of where we live. Proving responsibility for groundwater contamination is difficult, costly and time-consuming, and while corporate lawyers drag out proceedings for years, everyone’s taxes will pay for the subsurface investigations, the whole-house filtration systems, the unending lab analyses.
I’d love to see hundreds more jobs created. But not if it means hundreds of thousands using well water will be at a high risk of contamination. Not if it means every New Yorker will be on the hook for the cost for cleanup and for creating alternate water supplies. If your well goes bad, neither you, nor your children, nor their children will ever be able to get safe, clean water back. That’s too high a price.
Drill for gas, absolutely, but develop safe technologies first.
About Sharon Wilson
Sharon Wilson is considered a leading citizen expert on the impacts of shale oil and gas extraction. She is the go-to person whether it’s top EPA officials from D.C., national and international news networks, or residents facing the shock of eminent domain and the devastating environmental effects of natural gas development in their backyards.
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Reminds me of Tony Ingraffea’s very clear, simple and true statement made on July 25 during his presentation in Ithaca, NY:
“It is impossible to build a well that does not leak.”
Dr Ingraffea’s presentations have improved over the years: (quote at 12:00)
An excellent post Paul. There are many, many ways for fracking fluids to migrate to drinking water aquifers. Even if you consider the perfectly cased and cemented shale gas well, just one migrating path is the vertical fracking that ususally occurs in shale gas fracking, moving upwards to another strata which was used by a nearby old and abandoned oil well that was plugged under the condition of no surface pressure. Now this high pressure goes upward in this old well with rotted out casing and bad cement — on upwards to the water aquifer.