Well owners in Culberson County should be aware of arsenic, chloride, fluoride, iron, lead, manganese, nitrate, and sulfate in their groundwater. Several of these contaminants exceed EPA health standards, making them a concern that warrants testing and monitoring.
These contaminants come from the rock layers beneath the county and from human activities on the land above. The dry, desert environment and sparse vegetation mean fewer natural filters to clean water as it seeps down. Salt deposits in the rock dissolve into the water, raising chloride and sulfate levels. Mining and ranching activities also contribute metals and minerals to the groundwater in this region.
Groundwater in Culberson County is very hard, driven by high levels of calcium, magnesium, sulfate, and sodium that dissolve from the rock. The arid landscape and the composition of the underground rock layers cause these minerals to concentrate in the water rather than be diluted away. These mineral characteristics are widespread across wells throughout the county.
Wells in Culberson County can have several contaminants at levels that exceed EPA health standards. Arsenic, lead, and nitrate are the biggest health concerns because they can damage your organs and nervous system over time, especially in children and pregnant people. Fluoride and manganese at high levels can affect bone health and cause neurological problems. Iron can carry bacteria into your water that makes you sick.
The water in this county is very hard, which means you will see white scale buildup on faucets and inside pipes and appliances. You may notice a metallic or bitter taste, orange or brown staining in sinks and toilets, and a rotten egg smell. This hard water also wears out water heaters and dishwashers faster than normal.
We recommend getting your well tested with a comprehensive panel because multiple contaminants exceed health standards in county wells. Every well is different, and your well may have higher or lower levels than what is common here. Testing is the only way to know what is actually in your water so you can treat it properly. A comprehensive metals and minerals panel costs between two hundred and four hundred dollars. Ion exchange softening and filtration systems can remove both health contaminants and mineral problems.
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 | 16 | 25% | Moderate | High | |
| Sulfate | 16 | 25% | Moderate | High | |
| Iron | 189 | 13% | High | Moderate | |
| Nitrate | 37 | 11% | Moderate | Moderate | |
| Manganese | 183 | 9% | High | Moderate | |
| Arsenic | 145 | 3% | High | Low | |
| Fluoride | 491 | 1% | High | Low | |
| Lead | 144 | 1% | High | Low | |
| Uranium | 22 | 0% | Moderate | Low | |
| Sodium | 16 | — | Moderate | Low | |
| pH | 16 | — | Moderate | Low | |
| Hardness | 16 | — | 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.
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