Fire officials were called to the Nechako River Wednesday night. They were investigating a green fluorescent substance that was dripping into the river. Fire officials called in the the Ministry of Environment to determine what was draining from a culvert.
In the end, the Fire Department says the fluid was determined to be a plumbers dye, which is usually used in sanitary systems to find leaks. Somehow it found it’s way into the storm water system. It’s generally considered benign to water systems.
A similar dye is used in Chicago annually to turn a downtown river green on St. Patrick’s Day.