Question - what is VCP?
Info - they are using ground-penetrating radar to analyze the ground beneath the remaining portion of the spillway, if that hasn’t been noted already.
Also, they’ve been running 2 units at the Hyatt plant all night at around 3520 cfs. I think that they’ll analyze and bring on more as long as the flow in the river below looks good.
And had I looked a couple of posts above, it has already been noted that ground penetrating radar is being used. Sorry.
https://en.wikipedia.org/wiki/Vitrified_clay_pipe
Vitrified clay pipe (VCP) is pipe made from a blend of clay and shale that has been subjected to high temperature to achieve vitrification, a process which results in a hard, inert ceramic.
VCP is commonly used in gravity sewer collection mains because of its long life and resistance to almost all domestic and industrial sewage, particularly the sulfuric acid that is generated by hydrogen sulfide, a common component of sewage. Only hydrofluoric acid and highly concentrated caustic wastes are known to attack VCP. Such wastes would not be permitted to be discharged into a municipal sewage collection system without adequate pretreatment.