Data & Methodology — Levy County

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

Contaminant Data — All Analytes

1260 well testing events on record, covering 17 analytes. Data spans 1956 to 2025.

Contaminant Samples Years Detection Rate Distribution LowModHigh vs. Limit vs. FL Avg
Sulfate 994 1966–2025 100%
12% of limit ↓ 56% below
Iron 889 1966–2025 100%
5% of limit ↓ 98% below
Manganese 869 1977–2025 100%
2% of limit ↓ 92% below
Chloride 1242 1966–2025 100%
4% of limit ↓ 91% below
Arsenic 670 1977–2025 100%
5% of limit ↓ 62% below
Lead 670 1977–2025 100%
1% of limit ↓ 69% below
Nitrate 54 1966–2002 78%
0% of limit ↓ 100% below
Radon 3 2002 100%
12% of limit ↓ 60% below
Uranium 3 2002 67%
3% of limit ↑ 220% above
Fluoride 901 1966–2025 99%
2% of limit ↓ 68% below
Nitrite 181 1968–2025 85%
0% of limit ↓ 90% below
Total Coliform 26 1968–2025 81%
— ~ typical
Hardness 92 1966–2003 99%
— ~ typical
Fecal Coliform 14 1989–2021 88%
— ~ typical
E. coli 12 2002–2025 100%
— ~ typical
pH 903 1966–2025 100%
— ~ typical
Sodium 909 1966–2025 100%
— ↓ 93% below

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 Levy County

Of the 670 arsenic tests on record for Levy County (1977–2025), 0% found none, and half were below 0.5 µg/L.

Of the 1242 chloride tests on record for Levy County (1966–2025), 0% found none, and half were below 10.9 mg/L.

Of the 901 fluoride tests on record for Levy County (1966–2025), 1% found none, and half were below 90.3 µg/L.

Of the 889 iron tests on record for Levy County (1966–2025), 0% found none, and half were below 14.8 µg/L.

Of the 670 lead tests on record for Levy County (1977–2025), 0% found none, and half were below 0.148 µg/L.

Of the 869 manganese tests on record for Levy County (1977–2025), 0% found none, and half were below 1.09 µg/L.

Of the 54 nitrate tests on record for Levy County (1966–2002), 22% found none.

Of the 994 sulfate tests on record for Levy County (1966–2025), 0% found none, and half were below 29 mg/L.

Have a number from your lab? Enter it to see where it falls. Nothing is sent anywhere.

Want the full picture for your well? Check all your results.

Data Coverage & Gaps

Well-sampled analytes (15+ samples)

  • Sulfate 994 samples
  • Iron 889 samples
  • Manganese 869 samples
  • Chloride 1242 samples
  • Arsenic 670 samples
  • Lead 670 samples
  • Nitrate 54 samples
  • Fluoride 901 samples
  • Nitrite 181 samples
  • Total Coliform 26 samples
  • Hardness 92 samples
  • pH 903 samples
  • Sodium 909 samples

Limited data (<15 samples) — interpret with caution

  • Radon 3 samples
  • Uranium 3 samples
  • Fecal Coliform 14 samples
  • E. coli 12 samples

No private-well PFAS data for Levy County

We have no private well sampling data for PFAS compounds (PFOA, PFOS, PFNA, and related chemicals) in Levy 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 Levy County

67 Active public water systems
14,454 Residents on public water
80% Households on private wells

Public water systems in Levy 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 Levy 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 Levy County Prevalence FL Average Source Year
Arsenic Cancer prevalence 5.9% 6.8% 2020
Arsenic Kidney disease rate 3.2% 3.4% 2020
Lead Heart disease rate 7.3% 7.7% 2020

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