No contaminants detected in Pinellas County groundwater that exceed EPA health standards. Contaminant levels here are low.
The geology of this area helps keep groundwater clean. Pinellas County sits on rock and soil layers that naturally filter water as it moves underground, preventing harmful substances from building up in the water that feeds wells.
Based on the aquifer type in this county, groundwater likely contains elevated minerals like calcium and magnesium that come from the rock layers beneath the surface. These minerals dissolve naturally as water passes through the ground. Hard water is common across wells in this county, though individual wells vary in their exact mineral content.
Tests of wells throughout Pinellas County have not found contaminants exceeding EPA health standards. However, because this county is flagged as a priority area for arsenic, wells here need specific attention. Arsenic is a naturally occurring element that can dissolve into groundwater and poses serious health risks with long-term exposure, including increased cancer risk and damage to the nervous system. Testing your well is the best way to know if arsenic or other contaminants are present in your water.
Mineral content in county wells has not shown widespread quality-of-life concerns. However, groundwater conditions vary from property to property, so your well could have different mineral levels than others nearby. Some wells in sandy coastal areas can have elevated sodium or iron, which would cause issues like salty taste, staining, or metallic odor. Only testing your specific well will tell you what you are dealing with.
We recommend testing your well for arsenic and a basic bacterial screen. Since wells vary so much in this county, testing is the only way to know what is actually in your water and what treatment you might need. A basic screening costs about fifty to one hundred dollars. If results show arsenic or other metals, a more detailed panel and treatment options like activated carbon filters or ion exchange systems can address the problem.
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 | 896 | 70% | High | High | |
| Chloride | 5280 | 54% | High | High | |
| Sulfate | 1402 | 27% | High | High | |
| Manganese | 437 | 26% | High | High | |
| PFOS ⓘ municipal | 64 | 9% | Moderate | Moderate | |
| Arsenic | 1145 | 9% | High | Moderate | |
| PFOA ⓘ municipal | 64 | 8% | Moderate | Moderate | |
| Nitrate | 1760 | 6% | High | Moderate | |
| Lead | 788 | 2% | High | Low | |
| Fluoride | 757 | 0% | High | Low | |
| Nitrite | 1798 | 0% | High | Low | |
| HFPO-DA (GenX) ⓘ municipal | 64 | 0% | Moderate | Safe | |
| Uranium | 2 | 0% | Low | Low ⓘ | |
| PFHxS ⓘ municipal | 64 | 0% | Moderate | Low | |
| PFNA ⓘ municipal | 64 | 0% | Moderate | Safe | |
| pH | 2297 | — | High | Low | |
| Sodium | 1874 | — | High | Low | |
| Hardness | 1607 | — | High | Low | |
| Total Coliform | 17* | 0% | Moderate | Low | |
| E. coli | 7* | 0% | Low | Low ⓘ | |
| Fecal Coliform | 10* | 0% | Low | Low | |
| PFBS ⓘ municipal | 64 | — | 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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