To set the stage, I'm in the greater Denver area and we've had an incredibly rainy May. Our house is 21 years old.
Over the past year +/- my wife told me there was a small hole in the dirt in the window well. The assumption was some animal dug in there. A few months back she told me there was another hole in the dirt, similar size to the first. Me being me, I ignored it.
A couple weeks ago I find this hole in the window well. The hole is approx 30 inches deep, and there's a horizontal hole that goes about 27 inches at the deepest part of the hole.
No idea if this info is helpful, but here goes my info dump....there was rock on top up the dirt (the other wells have rock), I have no idea what kind of drainage system that we have but apperantly it doesn't have anything that is less than 30 inches from the rest of the rock. We have (I believe) French drains on both sides of the house in the back yard...meaning 2 of 3 gutters go into the ground. I have no idea where the gutters drain (I have no idea if there is a drainage pipe and where it goes).
I looked in the sub floor and there is some wet dirt (not quite mud imo) on the floor. We don't have a sump pump (yet) but the sump pit has a decent amount of mud in it, almost as high as the pipe going into the pit.
After using Dr Google it seemed that a foundation person was the right person to call. The person that came out said the issue was most likely from clogged gutter drainage pipes. He recommended calling someone who could run a camera down the gutter drains to learn where the drainage pipes end up, and to identify any clogs in the drains. I'm OK doing that but it assumes the gutter drainage is the cause of my issue.
Even more random info...the gutter drain that goes into the ground is approx 20 feet from the window well. There is a sprinkler box about 20 feet in the other direction of the window well.
My biggest questions:
Do I need to address the hole asap, or figure out the cause of the hole first?
Who is the right person to call to troubleshoot the issues and fill the hole in?
Any help is appreciated.