Why is my pee so diluted for my drug test?

I just took a drug test for a job and i had drank alot of water that day and it was clear so i get why it was diluted. But i had to go in again and the first time i didnt pee enough so i had to take another one later. And it had color to it but it was still kinda light and clear. the nurse put it in the tester to see if it was diluted and it up under like 1.001 or something but she doesnt know for sure cuz she doesnt do the testing and they send it out to another place that tests it. but im afraid its not gonna be good again and the place that im trying to get a job at is not gonna hire me for it. im so upset and frustrated what do i do?