You're in that nebulous zone: many AHJ limit interior runs to 10' -- and demand GRC/ RMC.
Because you're up the line from the disconnecting means ( the five panels ) the Poco will have a big say, too.
I'd expect that you'll have to get both of them to sign off.
My Poco objects to the use of EMT -- across the board -- for their feeders.
I would not be surprised to find that the feeders failed outside the perimeter of the building. It may prove far more practical to dig up the feeders.
If cable was used, one might expect that the Poco will insist on doing the splice work, itself.
In my area, repairs to Poco cables would be the financial responsibilty of the Poco. We'd call them up and demand a repair. Our PUC would make the Poco comply.
This provision is one reason why the Poco has such a big say in every new feeder / service lateral.
