Wet area 14

This wet area on 14 fairway has been here for a while. Whenever we have a wet year this fairway has some weird wet spots that start showing up. I think there may be some natural springs that act up when we have unusually wet periods. I can't count the number of times that I have dug up spots in this fairway looking for leaks, only to find nothing.

It's hard to isolate the irrigation on this hole (to eliminate the possibility of this being a leak) for any length of time because the main artery for the golf course irrigation flows through this hole ( a 14" main line). If you shut that down it screws up the pressure on the rest of the course and we need water on that hole for our afternoon watering.

I really just need to put some new drainage on this fairway ASAP.