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Dow Diamond is the source of a “bright green substance” flowing in the Tittabawassee river

Tittabawasee_River_bank_after_cleanup_by_Lisa_Williams_USFWS_710px.jpg
Courtesy fws.gov
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The source of a mysterious green substance flowing into the Tittabawassee river has been identified as Dow Diamond.

According to the City of Midland’s Facebook page, the city’s wastewater staff was notified Tuesday evening of a “bright green substance” flowing into the Tittabawassee from a storm sewer drain.

The city said maintenance staff at Dow Diamond were conducting seasonal field maintenance with chemicals that had a green dye. The city said once maintenance was complete, the tanks used to carry the chemicals were rinsed and emptied into a floor drain within the facility, allowing it to flow into the storm sewer system and Tittabawassee River.

Regulatory compliance actions and an environmental impact investigation are being conducted by the Michigan Department of Environment, Great Lakes, and Energy

The city says they are working with Dow Diamond and EGLE to ensure an incident like this won’t happen again.