There are around 5 (last I counted) distinct RFI sources and 4 are from the neighbors. Those aren't the power company's problem. The only thing the power company could do is cut power to those houses. I would be in favor of that, but that's not realistic. However, there is a new source that is far stronger than all of the rest and that runs along the underground the power lines and seems to be strongest in MW but splatters across MW through HF- that is what I want them to investigate & fix.
And if they tell me "That's PLC! Tough." Then I will pull out my authorization to work the two new shiny amateur bands verifying no PLC within range. I have no idea how my power company deals with RFI, this is first time I've contacted them.
I sent a nice email with some detail. They can be professional & responsible to address it amicably or I will make a federal case out of it. After all, their slogan is "responsible by nature." They will need to live up to it.
If this is some device gone bad, its well within their interest to fix it, not just for regulation reasons, but because this is probably costing them money on wasted power.
I long for 2001.... quiet as mouse here. So very, very quiet.