Well Water in Kalkaska County: What to Test and Why

Moderate Risk
Testing Recommended 725 samples analyzed
Top Concerns in This County
Manganese Lead Iron

Why This Happens Here

Groundwater in Kalkaska County contains lead, iron, and manganese. Iron and manganese exceed EPA health standards, making them the main concerns for well owners in this area.

These metals dissolve naturally from minerals in the rock of the Marshall aquifer. As groundwater sits in contact with these iron-bearing rocks, the metals gradually dissolve into the water. The sandy and rocky layers here do not filter out these naturally occurring metals as water moves down to your well.

Groundwater in this county is marked by elevated iron. Iron concentrates in the water because it dissolves naturally from minerals in the aquifer rock, and iron at these moderate levels is fairly common across wells in the county.

What This Means for You

Wells in Kalkaska County commonly show iron, lead, and manganese at levels that exceed EPA health standards. Long-term exposure to lead is especially harmful to children and can affect brain development and learning. Manganese at elevated levels can harm the nervous system over time. Iron itself is not poisonous at moderate levels, but the combination of these metals in your county's groundwater is worth addressing.

Wells in this county with moderate iron can leave orange or reddish-brown stains on sinks, toilets, and laundry. Your water may taste metallic or bitter. Iron buildup can also clog pipes and shorten the lifespan of water heaters and dishwashers over time.

We recommend testing your well water through a certified lab. Every well is different, and your well may have higher or lower levels than what is common in the county. Testing is the only way to know what is actually in your water so it can be properly treated. A comprehensive metals and minerals panel typically costs $200-400 and will tell you exactly what you are dealing with. Iron filters or combination treatment systems can remove these metals from your water.

Not sure if your well is affected? Get certified results in 5–7 days.

Test Your Well Water with Tap Score →

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Lead 2 100% 50% · 0% · 50% Low High
Iron 3 33% 67% · 0% · 33% Low High
Manganese 7 29% 14% · 57% · 29% Low High
Arsenic 4 0% 100% · 0% · 0% Low Low
Sulfate 17 0% 94% · 6% · 0% Moderate Low
Fluoride 2 0% 100% · 0% · 0% Low Low
Uranium 1 0% 100% · 0% · 0% Low Low
Nitrate 22 0% 100% · 0% · 0% Moderate Low
Chloride 14 0% 100% · 0% · 0% Low Low
Nitrite 3 0% 100% · 0% · 0% Low Low
Sodium 15 Moderate Low
pH 7 Low Low

MCL = Maximum Contaminant Level (EPA limit for public water; used as benchmark for private wells). Distribution shows % of sampled wells in each concentration band. Methodology.

Data shows potential risk — a certified test confirms whether your water is affected.

Order a Tap Score Test →

Population Health Context

Population-level CDC data. Not individual risk prediction.

8.7%
Heart Disease Rate
(state avg: 7.4%)
6.8%
Heart Disease Rate
(state avg: 7.4%)

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