Good afternoon. I came across you guys while I was googling solutions for a drainage issue in my back yard. You all seemed knowledgable, so I am here asking for your help.
Basics of the issue - My house (built in 2006) is a split level home (basement & Main Level) built into a hillside. The backyard is situated at the base of a large hill, and it is holding water. There is a keystone retaining wall separating the back yard and the hill. The water is puddling up at the base of the wall and throughout the yard towards the house. There is no standing surface water next to the house. I've provided a make shift graphic to help explain the issue. I can provide any and all necessary information needed to help identify the best solution to my drainage issue.
I am looking for the best solution or combination of solutions to keep the water away from my basement (poured concrete walls; no prior issues of water intrusion), and to prevent my backyard from holding water.
Note: The red text reads, from left to right of the image, "10' Tall Retaining Wall" and "3' Tall Keystone Wall"