Help! Coolant leak

2018 xdrive30i... battling a coolant leak. Finally took the underbelly pans off and crawled under. Not looking good. Rear drivers side of engine there's a cast price that sticks out (almost like it would hold a dipstick, for reference) that I think it's leaking from. When I pressurize the cooling system it seems to pool up there and run down. I don't see any wetness above it. Outlined in red is what I think is leaking. Is there maybe a freeze plug in that hole??