(WXYZ) – Macomb County officials say a non-toxic dye caused the vivid green color of a stream in Clinton Township over the weekend.
According to a press release from the Macomb County Public Works Bureau, the Clinton Township Office and Fire Department were alerted on Sunday to the discoloration of the Cranberry Marsh drain south of 17 Mile. They said they immediately went into their emergency response protocols.
The Public Works Bureau later said it discovered that the Clinton Township Water and Sewer Department tested a sump pump in the area on Friday with a high concentration of dye. These dye tests, officials say, are done to trace underground sanitary wastewater and stormwater systems.
“The township was doing dye testing because they thought there might be an illegal connection to the sanitary sewer, which they fortunately found out there was not. They didn’t dilute the dye enough and some people thought it looked like the Chicago River, it was so green. It is not toxic and does not harm humans or animals, ”Macomb County Public Works Commissioner Candice Miller said in a press release.
The dye is expected to enter the Clinton River today and dilute.
“There is no reason to be alarmed,” Miller added in the press release. “It’s great that the public has actually informed us, so we appreciate the public’s help. We have zero tolerance for any contaminant in our waterways.