Earth materials such as bedrock, sand, and gravel may contain arsenic bearing minerals. Arsenic may be dissolved by, and absorbed into, the drinking water we withdraw from the ground

Arsenic Brochure
Statewide Arsenic Map

County Arsenic Maps

Alcona - Benzie
Berrien - Crawford
Delta - Hillsdale
Houghton - Kalkaska
Kent - Macomb
Manistee - Montmorency
Muskegon - Ottawa
Presque Isle - Wexford

Nitrate

Large amounts of nitrate in drinking water can cause serious illness in infants under six months of age.

Nitrate Brochure
Statewide Nitrate Map

County Nitrate Maps

            Alcona - Antrim
            Arenac - Benzie
            Berrien  - Charlevoix
            Cheboygan - Crawford
            Delta - Genesee
            Gladwin - Hillsdale
            Houghton - Iosco
            Iron - Kalkaska
            Kent - Leelenau
            Lenawee - Macomb
            Manistee - Menominee
            Midland - Montmorency
            Muskegon - Ogemaw
            Ontonagon - Ottawa
            Presque Isle - Schoolcraft
            Shiawassee - Van Buren
            Washtenaw - Wexford

VOCs

When found in drinking water, the source of Volatile Organic Compounds (VOCs) is generally associated with an industrial solvent release, landfill leachate, chemical transportation spill, a fuel spill and leak, illegal waste disposal etc. VOCs do not generally occur naturally in ground water.

Statewide VOC Map

County VOC Maps

            Alcona - Antrim
            Arenac - Benzie
            Berrien  - Charlevoix
            Cheboygan - Crawford
            Delta - Genesee
            Gladwin - Hillsdale
            Houghton - Iosco
            Iron - Kalkaska
            Kent - Leelenau
            Lenawee - Macomb
            Manistee - Menominee
            Midland - Montmorency
            Muskegon - Ogemaw
            Ontonagon - Ottawa
            Presque Isle - Schoolcraft
            Shiawassee - Van Buren
            Washtenaw - Wexford