👉 The Michigan Fluid, also known as Michigan Water or MWR-1, is a naturally occurring, brackish groundwater found in the Lower Peninsula of Michigan. It's characterized by its high salinity, typically ranging from 1,000 to 2,500 milligrams per liter of sodium chloride, making it denser and less permeable than freshwater. This unique composition is due to the mixing of freshwater from the Great Lakes and the saline groundwater from the underlying bedrock. The Michigan Fluid is often used for industrial processes, including metal plating and chemical manufacturing, due to its high mineral content, but it poses environmental risks if improperly managed, as it can contaminate surface water and harm aquatic ecosystems.