Data & Methodology — Dixie County

Full contaminant data, sample history, and sourcing for Dixie County. For readers who want to go beyond the summary.

Contaminant Data — All Analytes

255 well testing events on record, covering 17 analytes. Data spans 1966 to 2025.

Contaminant Samples Years Detection Rate Distribution LowModHigh vs. Limit vs. FL Avg
Iron 116 2002–2025 99%
1104% of limit ↑ 448% above
Manganese 116 2002–2025 100%
80% of limit ↑ 203% above
Arsenic 116 2002–2025 100%
8% of limit ↓ 42% below
Sulfate 153 1998–2025 100%
1% of limit ↓ 95% below
Chloride 153 1998–2025 100%
4% of limit ↓ 91% below
Fluoride 153 1998–2025 99%
1% of limit ↓ 88% below
Lead 116 2002–2025 99%
1% of limit ↓ 79% below
Nitrate 13 1991–2002 77%
3% of limit ~ typical
Nitrite 13 1991–2002 54%
1% of limit ~ typical
Radon 2 2002 100%
12% of limit ↓ 61% below
Uranium 2 2002 100%
1% of limit ~ typical
Total Coliform 47 2002–2025 100%
— ~ typical
Sodium 153 1998–2025 100%
— ↓ 92% below
pH 244 1998–2025 100%
— ~ typical
Hardness 3 1998–2002 100%
— ~ typical
Fecal Coliform 27 2013–2021 100%
— ~ typical
E. coli 20 2002–2025 100%
— ~ typical

Distribution shows the share of samples in each concentration band relative to the EPA Maximum Contaminant Level (MCL): Low = below half the MCL, Moderate = between half and the MCL, High = above the MCL. Analytes without an MCL (e.g. sodium, pH) show — in the limit columns. State average is based on county median values across FL.

Compare your result with Dixie County

Of the 116 arsenic tests on record for Dixie County (2002–2025), 0% found none, and half were below 0.763 µg/L.

Of the 153 chloride tests on record for Dixie County (1998–2025), 0% found none, and half were below 10.9 mg/L.

Of the 153 fluoride tests on record for Dixie County (1998–2025), 1% found none, and half were below 35 µg/L.

Of the 116 iron tests on record for Dixie County (2002–2025), 1% found none, and half were below 3.31 mg/L.

Of the 116 lead tests on record for Dixie County (2002–2025), 1% found none, and half were below 0.101 µg/L.

Of the 116 manganese tests on record for Dixie County (2002–2025), 0% found none, and half were below 40 µg/L.

Of the 153 sulfate tests on record for Dixie County (1998–2025), 0% found none, and half were below 3.6 mg/L.

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Data Coverage & Gaps

Well-sampled analytes (15+ samples)

  • Iron 116 samples
  • Manganese 116 samples
  • Arsenic 116 samples
  • Sulfate 153 samples
  • Chloride 153 samples
  • Fluoride 153 samples
  • Lead 116 samples
  • Total Coliform 47 samples
  • Sodium 153 samples
  • pH 244 samples
  • Fecal Coliform 27 samples
  • E. coli 20 samples

Limited data (<15 samples) — interpret with caution

  • Nitrate 13 samples
  • Nitrite 13 samples
  • Radon 2 samples
  • Uranium 2 samples
  • Hardness 3 samples

No private-well PFAS data for Dixie County

We have no private well sampling data for PFAS compounds (PFOA, PFOS, PFNA, and related chemicals) in Dixie County. PFAS testing for private wells requires a dedicated lab panel (~$300–$500). If you are near a military base, airport, or industrial site, consider testing proactively. Learn more about PFAS →

Public vs. Private Water in Dixie County

22 Active public water systems
6,518 Residents on public water
83% Households on private wells

Public water systems in Dixie County are regulated by the EPA and must test and report contaminant levels. Private well owners are responsible for their own testing — there is no routine monitoring of private wells by any government agency.

CDC Health Outcome Correlations

Where contaminants detected in Dixie County have established associations with specific health outcomes, we cross-reference CDC PLACES county-level prevalence data. This is a contextual signal, not a causal claim.

Contaminant Associated Condition Dixie County Prevalence FL Average Source Year
Arsenic Cancer prevalence 8.4% 6.8% 2020
Arsenic Kidney disease rate 4.1% 3.4% 2020

Source: CDC PLACES county-level estimates. Raw data: Download Dixie County CDC PLACES data →

Data Sources

This report aggregates data from the following public databases:

Methodology

Raw records are downloaded from the Water Quality Portal and normalized to µg/L (ppb). Records are deduplicated by sample ID and date, and certified outliers are excluded. Analyte names are mapped to EPA canonical forms. Detection rates, distribution bands, and MCL comparisons are computed from the normalized dataset.

Distribution bands use the EPA Maximum Contaminant Level as the threshold: concentrations below 50% of the MCL are classed as Low, between 50% and 100% as Moderate, and above 100% as High. For analytes without an MCL (sodium, hardness, pH), distribution is not computed.

State comparison uses the median of county median values across all counties in FL with at least one sample for that analyte.

Last updated: 2026-08-12

Full methodology →