Thanks for the info. However, without any details I can't judge what the problem is. It is possible it was inferior labor but I don't think so. More like equipment failure. Also, how do you know the subcontractors didn't use immigrant labor, legal or illegal?
The phone number is the rpac front desk phone number.
It is a state project and therefore governed by the prevailing (very high, artificially high) wage law.
It was almost certainly not immigrant labor since the wages were mandated to be high.