Google Keystone Pipeline & leaks/cracks, etc. Here's one example:
http://switchboard.nrdc.org/blogs/aswifttranscanadas_record_presents_a.html
Keystone I, a pipeline moving primarily tar sands from Alberta to the Midwest and Oklahoma, was TransCanada’s first crude oil pipeline. TransCanada pitched it as a state-of-the-art pipeline which would “meet or exceed world-class safety and environmental standards.” In its environmental risks assessment, the company forecast that Keystone I would leak no more than 1.4 times a decade and noted that it had agreed to 51 special conditions that would increase its safety.
When construction on the project began in 2008, reality began to sharply diverge from TransCanada’s rhetoric. As the Keystone I was being built, a pipeline inspector working for a TransCanada contractor, was alarmed by what he saw – cheap steel prone to cracking, bad welds, sloppy concrete jobs, poorly spaced rebar, and fudged pressure testing. When he reported these issues to TransCanada, he was ignored and ultimately fired.
Keystone I started having problems as soon as it commenced operations in 2010. In its first year, the pipeline leaked 14 times, with the largest spill exceeding 21,000 gallons. Federal pipeline regulators were forced to intervene, issuing a Corrective Action Order (CAO) temporarily shutting the pipeline down as an imminent threat to life, safety and the environment. Keystone I became the newest pipeline in U.S. history to receive such an order – the previous contender was a 25 year old pipeline.
Most leaks are eventually discovered by land owners, not the Frackers with their "state of the art" pressure detectors. Then the frackers immediately make false claims about how small an amount leaked and how they have the leak totally repaired.
= new reply since forum marked as read