Groundwater in Westmoreland County contains manganese, iron, radon, chloride, and sulfate. These contaminants exceed EPA health standards and require attention.
The rock beneath this county naturally contains iron and manganese that dissolve into groundwater as water moves slowly through cracks and layers. Radon comes from uranium that breaks down naturally in the stone. Chloride and sulfate enter from minerals in the rock and from salt applied to roads.
Groundwater in this county is hard, driven by elevated manganese and iron from the stone below. These minerals concentrate here because the rock layers are cracked and allow water to sit in contact with iron-rich and sulfur-bearing minerals. These characteristics show up across most wells in the county.
Wells in Westmoreland County commonly exceed EPA health standards for chloride, iron, manganese, radon, and sulfate. Chloride at elevated levels can affect people with high blood pressure or heart disease. Radon is a radioactive gas that increases lung cancer risk over time with long-term exposure. Manganese can harm brain development in children and affect the nervous system. Iron and sulfate themselves are not health hazards, but their presence signals what else might be in your water.
The mineral content here creates real quality-of-life challenges. High iron will stain your sinks, toilets, and laundry a reddish-brown color. The sulfate gives water a bitter or metallic taste. Your water is hard, which means white crusty scale will build up on faucets and inside pipes. This extreme hardness can shorten the lifespan of water heaters and dishwashers.
We recommend having your well tested through a certified lab. 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 is actually in your well so it can be treated properly. A comprehensive metals and radon panel typically costs $200-400 and will tell you exactly what needs attention. Treatment options like aeration combined with filtration or water softening can address multiple contaminants 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 ⓘ |
|---|---|---|---|---|---|
| Manganese | 47 | 91% | Moderate | High | |
| Iron | 63 | 78% | Moderate | High | |
| Sulfate | 64 | 42% | Moderate | High | |
| Radon | 10 | 20% | Low | High ⓘ | |
| Arsenic | 44 | 7% | Moderate | Moderate | |
| Chloride | 64 | 3% | Moderate |
Moderate
Elevated concentration, not % above limit
|
|
| PFOA ⓘ municipal | 67 | 1% | Moderate | Low | |
| PFOS ⓘ municipal | 67 | 1% | Moderate | Low | |
| Fluoride | 47 | 0% | Moderate | Low | |
| HFPO-DA (GenX) ⓘ municipal | 46 | 0% | Moderate | Safe | |
| Lead | 44 | 0% | Moderate | Safe | |
| Nitrate | 63 | 0% | Moderate | Low | |
| Nitrite | 41 | 0% | Moderate | Low | |
| PFHxS ⓘ municipal | 24 | 0% | Moderate | Low | |
| PFNA ⓘ municipal | 24 | 0% | Moderate | Safe | |
| Uranium | 39 | 0% | Moderate | Low | |
| Hardness | 63 | — | Moderate | Low | |
| PFBS ⓘ municipal | 46 | — | Moderate | Low | |
| pH | 55 | — | Moderate | Low | |
| Sodium | 60 | — | 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…