There are appeals processes, but according to Scott Perona with King Soopers employment, they are almost never utilized. The Boulder Police Department does not receive any information about people who fail drug tests from employers. The release of test results is prohibited by law, except when authorized by the person tested. Many local companies have drug-testing policies, but their ability to keep drug users out of the workplace is questionable. A 27-year old Boulder resident passed a drug screening at Qwest despite being a habitual marijuana smoker.
Urine testing is the standard for company drug tests.
THC, the active ingredient in marijuana, metabolizes in the body, where it can remain for up to 30 days. One Boulder lab that has been in business since 1977 said that at least 20 nanograms per milliliter of THC need to be detected in a sample for a candidate to test positive for marijuana use. Samples are usually given in a private bathroom with no running water. THC is a toxin. Marijuana smokers who wish to pass drug tests seem to have many options for eradicating toxins from their bodies.