Groundwater in Liberty County contains arsenic, chloride, fluoride, iron, manganese, nitrate, and radon at levels that exceed EPA health standards. These contaminants are a serious concern and well owners should test their water and take action if results show exceedances.
The coastal lowlands geology here creates conditions where these contaminants accumulate. Saltwater intrusion from the Gulf brings chloride inland. Iron and manganese dissolve from sediment layers as water moves underground. Radon comes from natural radioactive decay in rock. Nitrate enters from agriculture and septic systems. Arsenic and fluoride release naturally from the sediment.
Groundwater in this county is moderately hard, driven by moderate levels of iron and sodium. These minerals concentrate because coastal sediments contain iron-bearing minerals and salt from marine environments. This combination of moderate hardness and elevated iron is common across wells throughout Liberty County.
Wells in Liberty County show concerning levels of arsenic, chloride, fluoride, iron, manganese, nitrate, and radon. Arsenic and radon can increase cancer risk with long-term exposure. Nitrate is especially dangerous for infants and can cause serious illness. Manganese affects the brain and nervous system development in children. High chloride and fluoride levels also pose health concerns for your family.
The water in this county's wells tends to be moderately hard, which means you may see rust staining on sinks and laundry, white scale buildup in pipes and on fixtures, and reduced lather from soap. Iron creates reddish discoloration and can affect taste and odor. Hard water shortens the life of water heaters, dishwashers, and other appliances over time.
We recommend getting a comprehensive water test for your well right away. Every well is different, and your water could have higher or lower levels than the county average. 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 $200 and $400 and will identify exactly what needs addressing, whether through filtration, ion exchange, or other treatment methods.
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 | 183 | 32% | High | High | |
| Radon | 11 | 18% | Low | High ⓘ | |
| Iron | 250 | 14% | High | Moderate | |
| Chloride | 112 | 12% | High | Moderate | |
| Nitrate | 91 | 9% | Moderate | Moderate | |
| Arsenic | 177 | 1% | High | Low | |
| Fluoride | 256 | 1% | High | Low | |
| HFPO-DA (GenX) ⓘ municipal | 28 | 0% | Moderate | Safe | |
| Lead | 170 | 0% | High | Low | |
| Nitrite | 19 | 0% | Moderate | Low | |
| PFHxS ⓘ municipal | 28 | 0% | Moderate | Safe | |
| PFNA ⓘ municipal | 28 | 0% | Moderate | Safe | |
| PFOA ⓘ municipal | 28 | 0% | Moderate | Safe | |
| PFOS ⓘ municipal | 28 | 0% | Moderate | Safe | |
| Sulfate | 110 | 0% | High | Low | |
| Uranium | 74 | 0% | Moderate | Low | |
| Sodium | 104 | — | High | Low | |
| pH | 52 | — | Moderate | Low | |
| PFBS ⓘ municipal | 28 | — | Moderate | Safe | |
| Hardness | 108 | — | High | 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…