So the pipe is 2†too shallow, minimum.
It’s plugged and needs to be flushed.
I don’t know the routing or exit.
Worried that my best route may be do just start digging to follow it?
Put garden hose in at the far corner of the house. Got no water here and could not hear any exiting anywhere else, either. Gonna open up my crack here and jam a hose in, see if I can learn anything else.