Cannabis Drug Test Drug Test -- Cannabis?

Drug test -- cannabis? - cannabis drug test

I am 18 years old, about 5'7 and weighs about 140 pounds, a cannabis are relatively small and in my system. I recently applied for a job concessions sports stadium and offer an interview within 5 days. Pretty sure that a drug test it. It's on my system, because two days ago, and since I was drinking (at least a liter of water a day but I do not know whether this is sufficient or too much) and use the bathroom like crazy. That is all what I know about the situation. Any other suggestions?

I use cannabis at least once a week, and I'm not aware of how much effect on them.