Groundwater in Hardeman County contains chloride, sulfate, and nitrate at levels that exceed EPA health standards. Iron and manganese are also present at concerning levels, making this a county where well owners need to pay attention to water quality.
These contaminants come from the rock layers beneath the county and from human activity on the land above. The underlying rocks naturally contain dissolved minerals and salts that leach into groundwater over time. Nitrate comes from agricultural fertilizers and animal waste that seep down from the surface into the water below.
Groundwater in this county is very hard, with elevated sodium and sulfate as the dominant minerals driving that character. These salts dissolve naturally from the rocks as water moves through them underground, accumulating over time. Most wells in Hardeman County show these same mineral signatures, reflecting the consistent geology and land use across the region.
Wells in Hardeman County show elevated levels of chloride, iron, manganese, nitrate, and sulfate above EPA health standards. Chloride and sulfate at high levels can affect people with heart or kidney problems. Nitrate is especially concerning for infants and pregnant women, as it can interfere with how blood carries oxygen. Manganese and iron at elevated levels can affect brain development in children over time.
County well water is extremely hard, which means you'll see white crusty buildup on faucets and fixtures, and soap won't lather well. Your clothes may feel stiff after washing, and dishes can spot. The very high mineral content will shorten the lifespan of water heaters, dishwashers, and other appliances. You may also notice a salty taste or rotten-egg smell from the sulfate.
We recommend a comprehensive water test to find out exactly what's in your well, since every well is different and yours could be higher or lower than the county average. Testing is the only way to know what treatment your specific water needs. A comprehensive metals and minerals panel costs between $200 and $400. Water softeners, reverse osmosis systems, or other filters can address multiple concerns depending on what your test shows.
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 ⓘ |
|---|---|---|---|---|---|
| Chloride | 2 | 100% | Low | High ⓘ | |
| Sulfate | 2 | 100% | Low | High ⓘ | |
| Nitrate | 9 | 67% | Low | High ⓘ | |
| Iron | 44 | 14% | Moderate | Moderate | |
| Manganese | 36 | 6% | Moderate | Moderate | |
| Arsenic | 32 | 0% | Moderate | Low | |
| Fluoride | 126 | 0% | High | Low | |
| Lead | 32 | 0% | Moderate | Low | |
| Uranium | 10 | 0% | Low | Low | |
| Hardness | 2 | — | Low | Low ⓘ | |
| pH | 2 | — | Low | Low ⓘ | |
| Sodium | 2 | — | 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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