Ok, I did a little more testing this morning (not as detailed as I would have liked, but I'm late for work).
I saw a voltage drop of 3 volts from phase-neutral when turning on the stove, didnt get a chance to test phase to phase.
I have contacted the poco and they are supposedly coming to install a monitoring device, but its been months and they havent showed up.
I am using an offline UPS, I would love to have an online UPS but it's a bit out of my price range (they start around $800 I believe).
I will do further testing tonight and give the poco another call.
Thanks,
-invictive
