**Bright Green Water Puzzles Springfield Residents as Officials Launch Investigation

*SPRINGFIELD, Mich.* — A social media post last week turned into a full-blown investigation after residents discovered Helmer Creek had taken on an unnaturally bright green hue, sparking fears of contamination across Calhoun County.

The incident first came to attention following a Facebook post on Tuesday, March 31, 2026, the Calhoun County Sheriff's Office said in an announcement. The discoloration has significantly dissipated; however, officials are continuing to investigate the source and cause.

Cathrine Tossava, a Springfield resident whose home sits near the creek, was among the first to notice the strange coloration.

"I was worried that someone dumped something in the water," Tossava said. "My concern was what is going on in the city and why no one was informed."

Tossava said she enjoys taking her kids to the creek during spring to find worms and frogs. The unexpected green water turned a beloved local spot into a source of anxiety for nearby families.

**Drones Deployed to Trace the Mystery

Springfield and Calhoun County officials responded quickly, launching a coordinated investigation that included drone technology to map the discoloration's path and identify potential origin points.

The City of Springfield confirmed the green creek water in a Facebook post on Wednesday, nearly a day after Tossava first noticed it. Thursday afternoon, Springfield posted an update saying Michigan's Department of Environment, Great Lakes and Energy (EGLE) had determined the water is safe.

Chaz Wilkey, the Springfield Director of Public Works, said crews were in the area investigating Wednesday, and he surmised someone may have dumped green dye into a nearby storm sewer.

"We're trying to trace the full path of the discoloration to identify and potential origin points," Wilkey said.

The Calhoun County Sheriff's Office said that's how they first learned of the discoloration. They said on Wednesday that the color had "significantly" dissipated since the post was made.

**EGLE Determination: Water Safe

On Thursday, the sheriff's office said EGLE determined the water is safe and "there is no further public concern" about the water quality.

Jen Klang, the district supervisor in Calhoun County for the department's Water Quality Unit, said there have been no recent permits filed to use any dyes, something that is required.

"There's an authorization process that people are supposed to go through before use of these so that we can anticipate and, you know, know that these things are going to potentially happen," Klang said.

While EGLE believes it could be a tracer dye, the department found no definitive proof. If it is a dye, Klang said they're designed to be non-toxic.

Helmer Creek eventually flows into the Kalamazoo River, raising additional concerns about potential environmental impact. For Tossava, the determination that the water is safe brings relief.

"The kids like playing in the woods, finding worms in the creek, and now it's prime worm and frog time," Tossava said.

**Community Advised to Avoid Contact

Throughout the investigation, officials urged residents to avoid Helmer Creek until further notice. The discoloration began at Helmer Road at Bishop and extended to the Kalamazoo River.

The Calhoun County Sheriff's Office did not specify what was causing the color, though they are continuing to investigate. Anyone with information related to this incident is asked to contact the Calhoun County Sheriff's Office at 269-781-0880 or provide an anonymous tip through Silent Observer at 269-964-3888.

**What We Know So Far

  • The discoloration was first spotted on Tuesday, March 31, 2026
  • EGLE determined the water is safe on Thursday
  • The color has "significantly" dissipated since the initial post
  • Officials believe it may be tracer dye, but there's no definitive proof
  • No permits have been filed for dye use in the area
  • The creek flows into the Kalamazoo River
  • No impact on wildlife was observed
  • There was no odor associated with the discoloration

**Looking Ahead

As the investigation continues, officials remain committed to identifying the source of the discoloration and providing answers to concerned residents. The use of drone technology has helped map the affected area, and crews continue to monitor the creek.

The mystery remains unsolved, but the most pressing question — whether the water is safe — has been answered with relief.

Sources

  • Calhoun County Sheriff's Office announcement regarding Helmer Creek investigation
  • Springfield, Michigan Facebook post confirming green creek water
  • WZZM 13 article: "Bright green creek in Calhoun County still leaves residents with questions"
  • WKZO article: "Helmer Creek declared safe after being discolored"
  • WWMT article regarding EGLE determination of water safety