Kalkaska County groundwater contains lead, iron, and manganese that exceed EPA health standards. These levels are concerning and warrant attention, particularly the lead contamination.
The Marshall aquifer rock naturally contains iron-bearing minerals that dissolve into groundwater as water moves slowly through the formation. Lead can enter from older plumbing, fixtures, and solder in private wells. The mixed composition of rock and sediment here does not effectively filter these metals out before water reaches private wells.
Groundwater in this county is hard, driven primarily by elevated calcium and magnesium from the limestone and carbonate-rich layers. Iron also contributes to the water's character. Hard water and iron-bearing water are common across wells in Kalkaska County.
Wells in Kalkaska County commonly contain iron, lead, and manganese at levels exceeding EPA health standards. Lead is especially harmful to children and can damage the brain and nervous system. Manganese at elevated levels can harm the brain and affect how the body uses certain nutrients. Iron itself is not poisonous, but exposure to these metals over time warrants attention.
Wells in this county often leave visible stains on sinks, toilets, and laundry. Your water may taste metallic or have an unpleasant flavor. The county's hard water can shorten the lifespan of water heaters and dishwashers as minerals build up inside pipes and appliances.
We recommend testing your well water through a certified lab, since every well is different and yours 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 runs $200-400. Treatment options like iron filters combined with point-of-use systems can address multiple contaminants.
Not sure if your well is affected? Get certified results in 5–7 days.
Test Your Well Water with Tap Score →| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Lead | 1 | 100% | Low | High ⓘ | |
| Manganese | 4 | 25% | Low | High ⓘ | |
| Iron | 4 | 25% | Low | High ⓘ | |
| Arsenic | 4 | 0% | Low | Safe ⓘ | |
| Chloride | 4 | 0% | Low | Low ⓘ | |
| Fluoride | 4 | 0% | Low | Low ⓘ | |
| Nitrite | 2 | 0% | Low | Safe ⓘ | |
| Sulfate | 4 | 0% | Low | Low ⓘ | |
| Uranium | 1 | 0% | Low | Low ⓘ | |
| Nitrate | 2 | 0% | Low | Low ⓘ | |
| Sodium | 4 | — | Low | Low ⓘ | |
| pH | 4 | — | Low | Low ⓘ | |
| Hardness | 4 | — | 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.
* Microbial contaminants (E. coli, coliform) reflect only samples from the last 10 years.
Data shows potential risk — a certified test confirms whether your water is affected.
Order a Tap Score Test →Population-level CDC data. Not individual risk prediction.
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