It has been proven that it does contaminate. That also doesn't consider the pools of wastewater on the surface. There are peer reviewed studies out there that state the evidence. Sadly, there is also a lot of misinformation being pushed by the oil and gas industry.
http://www.greenpeace.org/usa/new-science-shows-fracking-con...
http://ofmpub.epa.gov/eims/eimscomm.getfile?p_download_id=52... "We did not find evidence that these mechanisms have led to widespread, systemic impacts on drinking water resources in the United States. Of the potential mechanisms identified in this report, we found specific instances where one or more mechanisms led to impacts on drinking water resources, including contamination of drinking water wells. The number of identified cases, however, was small compared to the number of hydraulically fractured wells. "
Also the sort of vague claim with no support that "well it hasn't happened yet" is kind of annoying. Nothing is zero risk. we can argue about p(bad_things) <.001 or .1 or whatever, but i think it's foolish to just pretend everything will be sunshine and rainbows forever.
1) Law relating to public land use is terrible and biases insanely in the way of leasing for exploitation. In that the government is both required by law to lease and that the price is far shy of what a market would support (as it hasn't been updated in decades)
2) Inspection and fining of terrestrial operations is typically more self-reported (though only necessary if "sufficient" oil / chemicals have spilled). Measures are then put in place afterwards to monitor the well / location.
Admittedly, he wasn't in legal, but thought I'd share. Also, have to put a plug, if anyone has a lead on good-conscience geology jobs looking for someone with a BSc, I'd be thrilled to forward you on to him (contact me at {username}.co at gmail). He could have made easy money working in petrogeology but felt that wasn't something he could support.
Heh. https://en.wikipedia.org/wiki/Regulatory_capture and https://en.wikipedia.org/wiki/Revolving_door_(politics)
I'd expect them to be made up of folks with cozy ties to industry, just like the Federal version: https://en.wikipedia.org/wiki/Minerals_Management_Service#Gi...
I'm as cynical as anyone, but in this case I don't think it's warranted.