RECYCLING INFORMATION UPDATE: We have been advised by Zeigenbein Sanitation that due to the increase in recycling in the Waynesville City Limits, they will now be recycling on a weekly basis beginning September 1, 2016. The recycling days of Thursday and Friday will remain the same.
Some THC metabolites have a half-life of 20 hours, while others like THC-COOH have a half-life of 13 days, according to High Times. A 2014 study found that regular marijuana users have traces of marijuana in their urine for about two weeks, according to High Times.
Urine testing is able to detect marijuana usage more effectively than a blood test beyond a week. If you suspect someone is abusing marijuana it may be best to use an alternative drug testing method, such as urine testing or hair follicle testing. How Long Does Marijuana Stay in Hair? Hair follicle testing is often considered one of the most accurate methods of drug testing.