Michigan Well Water: Great Lakes State Water Quality Guide

Michigan Well Water Overview

Michigan has over one million private wells serving approximately 2.6 million residents. The state's diverse glacial geology creates varying groundwater conditions across different regions.

Key Concerns

PFAS: Michigan has been particularly affected by PFAS contamination, with multiple sites of concern near military bases, industrial facilities, and airports. Arsenic: Natural arsenic in glacial deposits affects many areas, particularly in the eastern Lower Peninsula. Hardness: Most Michigan well water is very hard due to limestone bedrock.

State Resources

Michigan EGLE (Environment, Great Lakes, and Energy) provides well water testing guidance and maintains a database of known contamination sites. The MI Well Water Quality Advisory program offers free PFAS testing in affected areas.

Testing Recommendations

Michigan recommends testing every 2-3 years for basic parameters. PFAS testing is recommended if within 5 miles of a known contamination source. View Michigan well water data.