NEED HELP... ASAP!!!!?

I know its wrong, but i slipped up sunday and smoked weed... i just got offered a new job today.. that means... you guessed it... DRUG TEST... Sunday night was my first time to smoke it in over a year.. yes i know hair follicle will show up but im not getting that done.. just a pee test lol... i didnt get "stoned" i just smoked... how long am i looking at it to be in my system??? or until i would be ok to p a drug test??? i have drank plenty of water since then i drink about 72 oz of water a day if that means anything.... YES I KNOW BAD BAD BAD CHOICE!!!