Groundwater in Hocking County contains manganese, iron, and sulfate at levels that exceed EPA health standards. These contaminant levels are serious and require attention from well owners.
The rock beneath Hocking County naturally holds these minerals. As groundwater moves slowly through cracks and spaces in the limestone and shale below, it dissolves manganese and iron from the rock itself. Sulfate forms when water contacts minerals in these layers over long periods of time.
Groundwater in this county is hard, driven by elevated calcium and magnesium from the limestone bedrock, along with high iron and sulfate content. Water sitting in contact with iron-rich rock layers releases these metals directly into the water. Hard water with these mineral characteristics is widespread across wells throughout Hocking County.
Wells in Hocking County commonly contain chloride, iron, manganese, and sulfate at levels exceeding EPA health standards. Manganese can damage how your brain and nervous system work, especially in children and over long periods of time. Chloride at high levels is a concern for people on low-sodium diets and can affect blood pressure. Iron and sulfate themselves are not direct health risks at the levels found here, but they contribute to the overall water quality picture in the county.
Beyond health concerns, wells in this county show hard water that leaves thick white scale buildup on pipes, fixtures, and inside appliances. Iron causes orange-brown or rust-colored stains on sinks, toilets, and laundry. You may notice a bitter or unpleasant taste from the sulfate, and some people detect a rotten-egg smell. The extremely hard water can shorten the lifespan of water heaters, dishwashers, and other appliances that use hot water.
We recommend testing your well to find out exactly what is in it, since every well is different and your water may have higher or lower levels than what is common in the county. Testing is the only way to know what treatment your family actually needs. A comprehensive metals and minerals panel typically costs between $200 and $400. Treatment options like whole-house water softeners combined with iron and manganese filters can address multiple concerns at once.
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 | 126 | 85% | High | High | |
| Manganese | 119 | 69% | High | High | |
| Arsenic | 96 | 29% | Moderate | High | |
| Chloride | 129 | 6% | High | Moderate | |
| Sulfate | 29 | 3% | Moderate |
Moderate
Elevated concentration, not % above limit
|
|
| Lead | 100 | 1% | High | Low | |
| Fluoride | 81 | 0% | Moderate | Low | |
| HFPO-DA (GenX) ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| Nitrate | 39 | 0% | Moderate | Low | |
| Nitrite | 12 | 0% | Low | Low | |
| PFHxS ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| PFNA ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| PFOA ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| PFOS ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| Radon | 1 | 0% | Low | Low ⓘ | |
| Uranium | 1 | 0% | Low | Low ⓘ | |
| Total Coliform | 1* | 0% | Low | Safe ⓘ | |
| Sodium | 130 | — | High | Low | |
| pH | 64 | — | Moderate | Low | |
| PFBS ⓘ municipal | 2 | — | Low | Safe ⓘ | |
| Hardness | 73 | — | Moderate | Low | |
| E. coli | 1* | 0% | Low | Safe ⓘ |
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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