A sample of tap water in the town of Hugo was taken and results indicated the presence of THC, or tetrahydrocannabinol, the chemical responsible for most of marijuana's psychological effects.
One of the town's water wells had been tampered with, according to the Lincoln County Sheriff's Office, which added there was evidence of forced entry.
The positive results were detected by a field testing kit but more qualitative and quantitative testing will soon show a specific result, said Captain Michael Yowell of the Sheriff's Office.