It wasn't at LabCorp. It was at a place I've never heard of before. I diluted, but not to an extreme. Supposedly the test I took provides the results in 15 minutes. I didn't want to ask the lab technician any questions because it would have seemed suspicious. Would I be contacted if I failed the urinalysis? The lab was open for another 4 hours after I left. Thanks for the help and words of encouragement.