Speaking from experience, of someone who has been involved with construction of hundreds of Km's of pipe, it isn't long. Every pipeline has the sections hydrostatically tested as part of passing regulations and certification. It's nothing more than bringing in water trucks and filling the line section, capping it, and pressurizing it and letting it sit to see if there is a pressure drop. The cap with the guages and valves is then cut off the line, moved to a different section, welded on and the same thing over again. It doesn't take more than a couple days at most per section which could be 10's of Km's long. For something this small, even with the incompetence of this group, should be done within a week. And on top of this, all a hydrostatic test is for is to check for leaks and a pressure drop.
"Hydrostatic testing of hazardous liquid pipelines requires testing to at least 125% of the maximum operating pressure (MOP), for at least 4 continuous hours, and an additional 4 hours at a pressure of at least 110% of MOP if the piping is not visible."
If they are doing anything but this they should say so. Pressurizing and doing anything else when the fluid is not in motion is a joke. Seriously, these terms are pretty easy to search.
And Brockovich was involved with the ZEFs and the whole fuel joke that Cecil said was gonna make the company profitable in 2010. To say they were around when there was a presentation on the magik white pipe is completely false.