Drainage/runoff problem... what to do?
I appreciate the advice and experiences. To cut to the chase, here's the issue I'm having:
I live on a sloped property where (typically during spring or real heavy downpours) there's runoff going to my neighbor's property where a small pool of water collects into the back of his detached garage.
Having acknowledged the situation when my neighbor raised his concerns of it, I hired a very knowledgeable drainage contractor (I was very pleased with his work by the way!): he noticed the downspouts from my gutters that could have contributed to the runoff wasn't directed anywhere other than away from my house. He piped and routed the downspouts not only away from my home (and my neighbors of course), but all the way to the end of my property where the drainage ditch is. He did a great job and I hoped it was the end of the issue... unfortunately the runoff problem still persist.
I can only think of two things that as to why I may still have this runoff problem:
Broken drain pipe along the slope of my property where water runs to the neighbor's property. I had a lot of trees cut down where the only access route for the cherry picker truck was (you guessed it!) the slope where I'm having runoff problems with. The drainage pipe is barely exposed (I'd say only about 3 inches) and my neighbor highly suspects this pipe is the culprit.
Well system. My home was on well water until I bought it. I haven't used the well since I piped city water in. In conjunction with the truck having gone through the slope of my house, could the weight of the truck possibly created an opening in the soil for the spring to have overflowed and contributed to the runoff?
I will look into getting this problem solved, at least replace/reroute the possible damaged drain pipe my neighbor says is the culprit. BUT... what if this runoff problem persist? My neighbor knew and acknowledged the amount of work done to my house. But who's to say this has been a preexisting problem with the previous owners of my home?
Thanks again for your input.