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Illustration of conventional septic system

More than 600,000 Minnesota homes and businesses use septic systems, treating an estimated 42 billion gallons of wastewater per year. Maintaining these systems is critical to protecting our groundwater, lakes, and streams, and human health. A poorly functioning septic system may not remove pathogens, nutrients and other chemicals from the sewage. before it enters our groundwater or lakes.

Spilled mercury, even small quantities in the home, should be cleaned up quickly and properly so that people don't come in contact with it or breathe its vapors.