[schamp]

I know where a natural gas pipeline is that the company can't run at more that 3-400 lbs per square inch. It blows out if they do. They actually keep a construction crew full time to replace bad pipe. When its uncovered you can push a hole in it with your bare hands.
Consider this, they are now allowing pipelines to be build within electrical transmission line easements. When one of these blows its going to be bad. What these things are is targets. Soft ones at that.
Does a pipeline company send you a calender each year. If so, your within the explosion zone for a pipeline. Turn the calender over, on the back is all the so called emergency procedures. An you just thought the company wanted you to know what day it was.
I wonder what would happen if they pumped the lines up to max design pressure each year. Most of the ones I worked on were pumped up to 1440 psi and left there for a period of time to check for leaks. Thats when they are new. Fill it with water and pressurize. One blew in a small town in Texas back in the late 70's. It blew out just about every piece of glass in the town. That was just using water.