on-ground rain gutters
Don't do it!!! In my humble opinion, it's the WORST way to get rid of water at the foundation!
I don't know your water-runoff situation, but a situation where one is not able to use gutters and downspouts (along w/other means) to direct water AWAY from the foundation, are extremely rare.
My best to ya and hope this helps.
Jay J -Moderator
PS: God Bless America!