Well Water in Sumter County: What to Test and Why

Moderate Risk
Testing Recommended 450 well tests on record
Top Concerns in This County
Pfos Pfoa Iron

Why This Happens Here

Groundwater testing in Sumter County has detected no contaminants at levels that exceed EPA health standards. Contaminant levels here are low, which is good news for well owners.

The Floridan aquifer system that supplies water to this county is made of limestone and rock layers that filter water naturally as it moves underground. This natural filtration, combined with relatively low pollution sources in the area, keeps the groundwater clean and free from harmful contamination.

Water in Sumter County comes from a limestone aquifer, which means it tends to have elevated calcium and magnesium that make it hard. Limestone dissolves slowly as water passes through it underground, which is why these minerals concentrate in the groundwater here. Most wells in this county show similar mineral characteristics because they all tap into the same limestone aquifer system.

What This Means for You

Good news for Sumter County well owners: the county data shows no contaminants exceeding EPA health standards in wells tested here. This is a positive sign for your water quality.

Since mineral data for this county is incomplete, we don't have enough information to describe common aesthetic concerns like staining, scaling, or taste problems in Sumter County wells. Your well's mineral content could vary considerably from one location to another.

We recommend testing your well water to find out exactly what you're working with. Every well is different, and your water might have higher or lower mineral levels than the county average. A basic test for bacteria and nitrate costs around fifty to one hundred dollars, while a more complete minerals panel runs two hundred to four hundred dollars. Testing is the only way to know what's actually in your water so you can treat it properly if needed.

Not sure if your well is affected? Get certified results in 5–7 days.

Test Your Well Water with Tap Score →

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
PFOS ⓘ municipal 36 31%
Moderate High
PFOA ⓘ municipal 36 28%
Moderate High
Iron 273 18%
High High
PFHxS ⓘ municipal 36 8%
Moderate Moderate
Lead 27 4%
Moderate Moderate
Elevated concentration, not % above limit
Sulfate 356 4%
High Moderate
Elevated concentration, not % above limit
Manganese 252 1%
High Low
Radon 3 0%
Low Low
Uranium 4 0%
Low Low
Fluoride 309 0%
High Low
HFPO-DA (GenX) ⓘ municipal 36 0%
Moderate Safe
Nitrite 225 0%
High Low
Nitrate 57 0%
Moderate Low
Arsenic 27 0%
Moderate Low
Chloride 355 0%
High Low
PFNA ⓘ municipal 36 0%
Moderate Safe
pH 354
High Low
Sodium 356
High Low
Hardness 88
Moderate Low
Total Coliform 43* 0%
Moderate Low
E. coli 20* 0%
Moderate Low
Fecal Coliform 23* 0%
Moderate Low
PFBS ⓘ municipal 36
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 Health Context

Population-level CDC data. Not individual risk prediction.

13.4%
Heart Disease Rate
(state avg: 7.7%)
6.0%
Cancer Prevalence
(state avg: 6.8%)

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