Groundwater in Pender County contains iron, manganese, and chloride at levels that exceed EPA health standards and warrant attention from well owners. These contaminants are present at concentrations serious enough to require testing and possible treatment.
The underlying geology of this coastal plain region naturally releases these metals and salts into groundwater. The sandy and clay layers that make up the aquifer system contain iron-bearing minerals that dissolve into water as it moves through the rock. Saltwater from the nearby ocean also contributes chloride to the groundwater, especially in areas closer to the coast where saltwater can mix with freshwater supplies underground.
Groundwater in this county is hard, driven by elevated calcium and magnesium from the rock layers below, along with high iron that adds to the mineral load. The sandy coastal plain sediments dissolve minerals easily as water passes through them, which explains why both hardness and iron accumulate here. These mineral characteristics are widespread across wells throughout the county.
Chloride, iron, and manganese are found at elevated levels in wells across Pender County. Chloride at high levels can harm your kidneys and raise blood pressure over time. Iron and manganese above health standards can damage your organs and nervous system with long-term exposure.
Hard water in this county leaves white crusty scale buildup on faucets and inside pipes and water heaters. Iron stains clothes, dishes, and bathroom fixtures with rust-colored marks that are hard to remove. You may notice a metallic taste in your water and find that soap doesn't lather well.
Every well is different, and your well could have higher or lower levels than what is common in the county. We recommend a comprehensive metals and minerals panel to find out what is actually in your water so you can treat it properly. Testing typically costs two hundred to four hundred dollars. Treatment options include water softeners for hardness and iron removal systems.
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 | 36 | 61% | Moderate | High | |
| Manganese | 28 | 25% | Moderate | High | |
| Chloride | 53 | 19% | Moderate | High | |
| Arsenic | 16 | 0% | Moderate | Low | |
| Fluoride | 28 | 0% | Moderate | Low | |
| HFPO-DA (GenX) ⓘ municipal | 24 | 0% | Moderate | Safe | |
| Lead | 16 | 0% | Moderate | Low | |
| Nitrate | 30 | 0% | Moderate | Low | |
| Nitrite | 21 | 0% | Moderate | Low | |
| PFHxS ⓘ municipal | 24 | 0% | Moderate | Safe | |
| PFNA ⓘ municipal | 24 | 0% | Moderate | Safe | |
| PFOA ⓘ municipal | 24 | 0% | Moderate | Safe | |
| PFOS ⓘ municipal | 24 | 0% | Moderate | Safe | |
| Radon | 9 | 0% | Low | Low ⓘ | |
| Sulfate | 45 | 0% | Moderate | Low | |
| Uranium | 16 | 0% | Moderate | Low | |
| E. coli | 1* | 0% | Low | Safe ⓘ | |
| Hardness | 47 | — | Moderate | Low | |
| PFBS ⓘ municipal | 24 | — | Moderate | Low | |
| pH | 43 | — | Moderate | Low | |
| Sodium | 29 | — | Moderate | Low | |
| Total Coliform | 1* | 0% | 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.
Loading recent water news…