Gladwin County groundwater contains iron, sulfate, and lead that exceed EPA health standards, along with arsenic, chloride, and manganese. These contamination levels are serious and warrant prompt testing and treatment.
The mixed rock layers beneath Gladwin County naturally release iron, sulfate, and other minerals as groundwater moves slowly through cracks and spaces underground. Arsenic and lead are trapped within certain minerals in the bedrock and dissolve into water over time. Road salt applied during Michigan winters can also push chloride deeper into the ground.
Groundwater in Gladwin County is very hard, driven by high levels of iron, sulfate, and sodium. Iron dissolves naturally from the rock as water sits in contact with these mineral-bearing layers deep below the surface. These mineral characteristics are common across wells throughout the county.
Wells in Gladwin County commonly exceed EPA health standards for arsenic, lead, manganese, and chloride. Arsenic is a poison that builds up in your body over time and increases cancer risk. Lead damages the brain, nervous system, and kidneys, especially in children. Manganese at elevated levels can harm brain development and function. These metals accumulate with long-term exposure and pose serious health concerns.
Wells in this county also contain high levels of iron, sodium, and sulfate that affect daily life. Iron causes orange and brown staining on sinks, toilets, and laundry. The extremely hard water--combined with high sodium and sulfate--can shorten the lifespan of water heaters and dishwashers. You may notice a metallic or salty taste in the water, and scale buildup on fixtures and pipes is common.
We recommend testing your well to find out exactly what is in it, 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 needs treatment. Because multiple contaminants exceed health standards, a comprehensive metals and minerals panel is recommended, which typically costs $200-400. Treatment options like reverse osmosis systems or combination filtration can address these concerns.
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 ⓘ |
|---|---|---|---|---|---|
| Iron | 17 | 71% | Moderate | High | |
| Sulfate | 17 | 47% | Moderate | High | |
| Lead | 3 | 33% | Low | High ⓘ | |
| Manganese | 17 | 29% | Moderate | High | |
| Arsenic | 17 | 6% | Moderate | Moderate | |
| Chloride | 17 | 6% | Moderate | Moderate | |
| Fluoride | 17 | 0% | Moderate | Low | |
| Nitrite | 12 | 0% | Low | Low | |
| Radon | 1 | 0% | Low | Low ⓘ | |
| Uranium | 2 | 0% | Low | Low ⓘ | |
| Nitrate | 12 | 0% | Low | Low | |
| Sodium | 17 | — | Moderate | Low | |
| pH | 18 | — | Moderate | Low | |
| Hardness | 17 | — | Moderate | 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.
Loading recent water news…