JBD
I am aware of what you said. Thats why I said the utilities are reluctant to give out this information. Most utilities use the infinite method for fault current.
It seems to me there are 3 choices.
1. Install reactors to reduce the fault or
2. Wrap the service around the building til
the fault current is at a safe level.
3. Replace the main panel. Bet someone
didn't plan on that.