Well Water in Grand Traverse County, Michigan

Grand Traverse County · Population ~95,000 · Aquifer: Glacial Drift

Hardness: 150-300 PPM — Moderate to Hard

Grand Traverse County — home to Traverse City, Michigan's cherry capital — draws tourists and residents to one of the state's most scenic regions. But beneath the postcard scenery, private well owners face real water quality challenges. PFAS contamination from the former military installation at the former NAS Traverse City (now Cherry Capital Airport area) has affected local groundwater, and the area's mix of tourism, agriculture, and rural development creates ongoing contamination risks.

PFAS from Military Legacy

The former Naval Air Station Traverse City (now largely redeveloped) used PFAS-containing firefighting foam (AFFF) for decades. This is a pattern across Michigan and the country — military bases are among the most significant sources of PFAS groundwater contamination.

PFAS has been detected in groundwater and some private wells in the area surrounding the former base. Michigan EGLE and the Department of Defense have been investigating and providing testing for affected properties.

See our PFAS guide for the full Michigan PFAS story.

Agriculture and Nitrates

Grand Traverse County's cherry orchards and other agricultural operations, combined with rural septic systems, create nitrate contamination risk for shallow wells. The sandy soils that characterize parts of the county allow contaminants to reach groundwater more easily than the clay-rich glacial till found in southern Michigan.

Nitrates should be tested annually, especially if your well is less than 100 feet deep or near agricultural land.

Seasonal Population and Water Demand

Grand Traverse County's population effectively doubles during tourist season. This surge puts additional stress on groundwater resources and septic systems. More people means more septic effluent entering the ground, which can affect nearby wells — particularly in areas with high-density seasonal housing.

Testing Recommendations

Test annually for bacteria and nitrates — both are real risks in this area. Test at least once for arsenic, hardness, iron, and pH. If you're near the former NAS Traverse City or any known PFAS investigation area, add a PFAS panel.

See our testing guide for labs and costs.

Every well is different. Two wells on the same street can produce completely different water. The data on this page reflects documented conditions in the Grand Traverse County area, but the only way to know what's in your water is to test it.

Sources

  • Michigan EGLE — PFAS Investigation, Former NAS Traverse City
  • Grand Traverse County Health Department — Environmental Health
  • USGS — Groundwater Quality in Northern Lower Michigan
  • Michigan Department of Agriculture — Agricultural Groundwater Impact Studies