Groundwater in Throckmorton County contains iron, nitrate, and fluoride at levels that exceed EPA health standards. These contaminants are present in amounts that require attention from well owners.
Iron enters the groundwater naturally as water moves through the rock below the surface. Nitrate comes from fertilizers and septic systems that seep down into the water table over time. Fluoride occurs naturally in the local rock and dissolves into the groundwater.
Groundwater in this county is notably high in iron. The rock formations here release iron into the water as it flows underground, and this mineral concentrates in wells across the county. Most wells in Throckmorton County show elevated iron levels.
Wells in Throckmorton County have been found to contain fluoride, iron, and nitrate at levels that exceed EPA health standards. Fluoride at elevated levels can cause dental fluorosis, which affects tooth development in children and creates white spots or streaks on teeth. Nitrate is a concern because it can reduce the blood's ability to carry oxygen, especially in infants and young children. Iron itself is not toxic, but it contributes to other water quality issues in this county.
High iron levels in county wells create visible staining on sinks, toilets, and laundry that can be difficult to remove. Iron can also give water a metallic taste and cause rust-colored discoloration. These problems get worse over time and can stain clothing and fixtures throughout your home.
Testing is the only way to know what is actually in your well, since every well is different and your water could have higher or lower levels than what is common in the county. We recommend a comprehensive panel that checks for metals, minerals, bacteria, and nitrate, which typically costs between $200 and $400. Treatment options like iron filters and nitrate removal systems can address these issues once you know your specific water composition.
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 | 9 | 22% | Low | High ⓘ | |
| Nitrate | 6 | 17% | Low | High ⓘ | |
| Fluoride | 161 | 1% | High | Low | |
| Arsenic | 1 | 0% | Low | Safe ⓘ | |
| Lead | 1 | 0% | Low | Safe ⓘ | |
| Manganese | 3 | 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.
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