I consumed 6oz of liquor 40%. Last drink at 815pm on a Thursday. I went for a random UA on the following Monday at 12pm. My cutoff is 100. Will I pass? I did not do any extra water. It was my second urination of the day.

You had quite a while between your last drink and the test so I would say that the chances of you passing are good. That being said, no one can say in absolutes whether you passed as there a number of variables that cannot be accounted for. There are people who over produce EtG/EtS and others who metabolize it slowly that could give a positive after the 60-80hr testing range.

I think the more important question is one for you, if you're prohibited from drinking why did you binge? Have you prepared for the consequences of being caught? Do you have much to lose if you do?