Groundwater in Lorain County contains manganese, iron, sulfate, and arsenic at levels that exceed EPA health standards. These are serious contaminants that require immediate attention.
The bedrock beneath Lorain County is a mix of shale, sandstone, and other rock types that naturally release these metals and minerals into groundwater. As water sits in contact with these rock layers over time, manganese and iron dissolve out. Sulfate comes from the breakdown of minerals within the rock itself. Arsenic also occurs naturally in certain shale layers underground.
Groundwater in this county is very hard, driven by elevated calcium and magnesium from the local rock. The same rock conditions that produce the hardness also release iron and manganese into the water. Most wells across Lorain County show these mineral characteristics.
Wells in Lorain County commonly contain arsenic, iron, manganese, chloride, and sulfate at levels that exceed EPA health standards. Arsenic is the most serious concern--long-term exposure increases the risk of cancer and organ damage. Manganese can harm brain development and the nervous system, especially in children. Iron and sulfate at elevated levels can cause digestive problems over time.
The mineral content in county wells creates significant everyday problems. The water is extremely hard, which means thick white or rust-colored scale will build up on pipes, faucets, and inside appliances like water heaters and dishwashers, shortening their lifespan. High iron stains sinks, toilets, and laundry orange-brown. The elevated sulfate and sodium can make the water taste bitter or salty and may cause stomach upset.
We recommend testing your well with a comprehensive metals and minerals panel, since multiple contaminants exceed health standards. Every well is different--your water 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 well so it can be properly treated. A comprehensive panel typically costs $200-400. Treatment options like whole-house reverse osmosis or systems combining sediment filtration with arsenic removal 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 ⓘ |
|---|---|---|---|---|---|
| Manganese | 17 | 75% | 18% · 12% · 71% | Moderate | High |
| Iron | 83 | 66% | 22% · 13% · 65% | Moderate | High |
| Sulfate | 67 | 22% | 63% · 15% · 22% | Moderate | High |
| Arsenic | 6 | 20% | 50% · 33% · 17% | Low | High ⓘ |
| Chloride | 66 | 17% | 67% · 17% · 17% | Moderate | High |
| PFOS ⓘ municipal | 65 | 0% | 100% · 0% · 0% | Moderate | Safe |
| PFNA ⓘ municipal | 65 | 0% | 100% · 0% · 0% | Moderate | Safe |
| PFHxS ⓘ municipal | 65 | 0% | 100% · 0% · 0% | Moderate | Safe |
| HFPO-DA (GenX) ⓘ municipal | 65 | 0% | 100% · 0% · 0% | Moderate | Safe |
| PFOA ⓘ municipal | 65 | 0% | 100% · 0% · 0% | Moderate | Safe |
| Fluoride | 16 | 0% | 100% · 0% · 0% | Moderate | Low |
| Lead | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFBS ⓘ municipal | 65 | — | 100% · 0% · 0% | Moderate | Low |
| pH | 14 | — | — | Low | Low |
| Nitrate | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Sodium | 60 | — | — | Moderate | Low |
| Nitrite | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Hardness | 29 | — | — | Moderate | Low |
| E. coli | 1 | 0% | 100% · 0% · 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.
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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