Typing this makes me feel like a wannabe grammarian, but here goes...

First, 10 mils (0.01") is a cause for concern? After 25,000 miles, I'd think that might as well be attributed to hitting a pothole somewhere along the way. Check for concavity and cracks, sure, but if it's not worn or cracked I'd keep riding it (with periodic inspection).

Second, I didn't see a picture from the O.P. A couple of other people have contributed pictures of damaged rims, but I'd think it'd be better to offer advice based on the rim in question, rather than some other rim which may or may not be representative of the item in question.