How long until I could pass a Pre-Employment Urinalysis Drug Test if I quit smoking marijuana yesterday after smoking about 5 bowls a day?

Wow...that is a lot of marijuana. I didn't even know it was physically possible to smoke an ounce of marijuana a day.

Well, for most regular smokers, it takes 2 to 6 weeks, or a month on average. But for extremely heavy, long-term users, it can potentially take up to 90 days. I would say an ounce a day for 5 years definitely qualifies as extremely heavy, long-term use.