Chloride and fluoride show up in Bristol's groundwater along with very hard water conditions. None of these reach levels that exceed EPA health standards, so contaminant levels here are low.
The Valley and Ridge rock formation underneath Bristol contains natural minerals that dissolve into the water as it moves through the ground. Chloride and fluoride come from the minerals in these rock layers, and hardness comes from calcium and magnesium that the water picks up from limestone and other carbonate-rich rocks in the area.
Groundwater in Bristol is very hard, driven by elevated calcium and magnesium from the limestone and carbonate rocks below. These minerals dissolve naturally as water flows through the ground, and hard water is a common characteristic across wells in this county.
Good news: wells in Bristol show no contaminants exceeding EPA health standards. Your county's water is holding up well on the major health concerns that regulators track. You can feel confident about the primary drinking water safety issues.
Wells in this county do have very hard water, which affects your home in visible ways. You'll notice scale buildup on faucets and shower heads, and soap doesn't lather as easily. Hard water also shortens the lifespan of water heaters and dishwashers, costing you money on repairs and replacements sooner than expected. Your clothes may feel stiff after washing, and dishes might spot.
We recommend testing your specific well to understand what you're working with, since every well is different and yours could have higher or lower mineral levels than the county average. A basic test costs around fifty to one hundred dollars and will tell you exactly what treatment makes sense for your home. Water softeners or other filtration systems can reduce hardness and make your water feel and work better for daily living.
| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Nitrite | 4 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Sulfate | 14 | 0% | 100% · 0% · 0% | Low | Low |
| Fluoride | 3 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Chloride | 17 | 0% | 100% · 0% · 0% | Moderate | Low |
| Iron | 3 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Manganese | 1 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Nitrate | 17 | 0% | 100% · 0% · 0% | Moderate | Low |
| Chloride | 17 | 0% | 100% · 0% · 0% | Moderate | Low |
| Sulfate | 14 | 0% | 100% · 0% · 0% | Low | Low |
| Fluoride | 3 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Iron | 3 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Manganese | 1 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Nitrite | 4 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Nitrate | 17 | 0% | 100% · 0% · 0% | Moderate | Low |
| pH | 7 | — | — | Low | Low ⓘ |
| Sodium | 14 | — | — | Low | Low |
| Hardness | 10 | — | — | 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.
Data shows potential risk — a certified test confirms whether your water is affected.
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