Groundwater testing in Hillsborough County shows no contaminants at levels that exceed EPA health standards. Contaminant levels here are low, which is good news for well owners.
The surficial aquifer system in this county sits close to the land surface and draws water from rain that filters down through sand and soil layers. This sandy geology naturally filters out many harmful substances before they reach the groundwater. The area's land use, which includes both urban development and natural areas, does not produce the kinds of industrial or agricultural pollution that would overwhelm this natural filtering process.
Information about specific minerals in Hillsborough County groundwater is not available from testing data, so the mineral character of water varies from well to well depending on local conditions. The surficial aquifer draws from sandy soils and loose rock layers that generally contain lower mineral concentrations than deeper limestone-based aquifers. Some wells in the county may have elevated iron or other minerals, while others will be clearer and softer, but testing your own well is the best way to know what you have.
Good news for wells in Hillsborough County. The county data shows that no contaminants are exceeding EPA health standards in well water samples tested here. This means the common water quality in the area does not present the health concerns that come with bacteria, nitrates, or other harmful substances at unsafe levels.
Since the available mineral data for this county is limited, we cannot tell you what aesthetic issues wells in Hillsborough County commonly face. Some wells in Florida have iron or other minerals that cause staining, taste problems, or scale buildup on fixtures and appliances, while others do not. Testing your well is the only way to find out what you are actually dealing with.
We recommend testing your well water to see what is actually coming from your specific well. Every well is different, and yours may have higher or lower levels of contaminants or minerals than what is common in the county. A basic test for bacteria and nitrate costs around fifty to one hundred dollars, while a more complete metals and minerals panel runs two hundred to four hundred dollars. Once you know what is in your water, you can decide whether treatment like filtration or a water softener makes sense for your home.
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 ⓘ |
|---|---|---|---|---|---|
| Radon | 75 | 47% | Moderate | High ⓘ | |
| PFOS ⓘ municipal | 55 | 45% | Moderate | High | |
| Iron | 2677 | 44% | High | High | |
| Sulfate | 3364 | 27% | High | High | |
| Chloride | 8617 | 20% | High | High | |
| PFOA ⓘ municipal | 55 | 18% | Moderate | High | |
| Arsenic | 843 | 6% | High | Moderate | |
| Manganese | 1676 | 6% | High | Moderate | |
| Lead | 901 | 5% | High | Moderate | |
| PFHxS ⓘ municipal | 55 | 2% | Moderate | Low | |
| Nitrate | 1215 | 1% | High | Low | |
| Fluoride | 1980 | 0% | High | Low | |
| Nitrite | 1205 | 0% | High | Low | |
| Uranium | 128 | 0% | High | Low | |
| HFPO-DA (GenX) ⓘ municipal | 55 | 0% | Moderate | Safe | |
| PFNA ⓘ municipal | 55 | 0% | Moderate | Safe | |
| pH | 3217 | — | High | Low | |
| Sodium | 3135 | — | High | Low | |
| E. coli | 46* | 0% | Moderate | Low | |
| Fecal Coliform | 66* | 0% | Moderate | Low | |
| PFBS ⓘ municipal | 55 | — | Moderate | Low | |
| Hardness | 2949 | — | High | Low | |
| Total Coliform | 112* | 0% | 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.
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