To Drink or Not TO Drink. Im not on probation. I live in a group home where random tests are given. I want to drink with my friends at an upcoming concert. I will be
on a 3 day pass from the house from Friday AM until Sunday 1:00 AM.
If I get moderately intoxicated Friday night at the concert will I be able to
pass a UA and BA Sunday Sunday at midnight?

Maybe, maybe not. I think maybe you'd be all right, but it's hard to say.
It depends on your metabolism and how fast the alcohol byproduct is removed from your system. Also because it's a metabolite and not the alcohol being measured (at least with ETG tests) it won't matter how drunk you are, you'll still test positive.

The best sure fire way to pass- don't drink. Part of learning how to not be an alcoholic is figuring out how to enjoy yourself without alcohol. Tricky, but there you go.