I drank on Thursday evening about 5-6 mixed drinks at a benefit, the following Monday I had to take a ETG test at 2p.m. That is about 85 hours out from my last beverage. I am 5'5, 130lbs, active female. What are my chances of passing?
And I also ate a meal about 12pm on Monday and drank a glass of water at 1pm, my urine came out a little more transparant than normal. Could I have accidentally diluted it?

You can't accidentally dilute... you have to drink lots of water so unless you are leaving out some details here, that didn't happen.

85 hours you should be fine.