Data & Methodology — Citrus County

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

Contaminant Data — All Analytes

3043 well testing events on record, covering 23 analytes. Data spans 1956 to 2025.

Contaminant Samples Years Detection Rate Distribution LowModHigh vs. Limit vs. FL Avg
Chloride 2907 1964–2025 100%
52% of limit ~ typical
Iron 1342 1965–2025 99%
3% of limit ↓ 99% below
Sulfate 1448 1965–2025 100%
7% of limit ↓ 73% below
PFOS municipal 40 2023–2025 10%
251% of limit ~ typical
Arsenic 22 1985–2024 100%
8% of limit ↓ 37% below
Manganese 1291 1987–2025 100%
3% of limit ↓ 89% below
PFHxS municipal 40 2023–2025 10%
80% of limit ↑ 56% above
Radon 1 2002 100%
10% of limit ↓ 66% below
Uranium 1 2002 100%
0% of limit ↓ 52% below
Lead 23 1985–2024 96%
1% of limit ↓ 58% below
Nitrate 89 1965–2012 69%
2% of limit ↓ 51% below
Fluoride 1285 1965–2025 99%
2% of limit ↓ 65% below
HFPO-DA (GenX) municipal 40 2023–2025 0%
— —
Nitrite 1121 1968–2025 97%
0% of limit ↓ 90% below
PFNA municipal 40 2023–2025 0%
— —
PFOA municipal 40 2023–2025 0%
— —
PFBS municipal 40 2023–2025 8%
— ↓ 28% below
E. coli 8 2002–2024 100%
— ~ typical
Fecal Coliform 12 1989–2020 86%
— ~ typical
Total Coliform 20 1968–2024 82%
— ~ typical
pH 1182 1965–2025 100%
— ~ typical
Sodium 1388 1965–2025 100%
— ↓ 32% below
Hardness 138 1965–2012 100%
— ↓ 52% 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 Citrus County

Of the 22 arsenic tests on record for Citrus County (1985–2024), 0% found none, and half were below 0.82 µg/L.

Of the 2907 chloride tests on record for Citrus County (1964–2025), 0% found none, and half were below 131 mg/L.

Of the 1285 fluoride tests on record for Citrus County (1965–2025), 1% found none, and half were below 100 µg/L.

Of the 1342 iron tests on record for Citrus County (1965–2025), 1% found none, and half were below 8.5 µg/L.

Of the 23 lead tests on record for Citrus County (1985–2024), 4% found none, and half were below 0.2 µg/L.

Of the 1291 manganese tests on record for Citrus County (1987–2025), 0% found none, and half were below 1.37 µg/L.

Of the 89 nitrate tests on record for Citrus County (1965–2012), 31% found none.

Of the 1448 sulfate tests on record for Citrus County (1965–2025), 0% found none, and half were below 17.7 mg/L.

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Data Coverage & Gaps

Well-sampled analytes (15+ samples)

  • Chloride 2907 samples
  • Iron 1342 samples
  • Sulfate 1448 samples
  • Arsenic 22 samples
  • Manganese 1291 samples
  • Lead 23 samples
  • Nitrate 89 samples
  • Fluoride 1285 samples
  • Nitrite 1121 samples
  • Total Coliform 20 samples
  • pH 1182 samples
  • Sodium 1388 samples
  • Hardness 138 samples

Limited data (<15 samples) — interpret with caution

  • Radon 1 sample
  • Uranium 1 sample
  • E. coli 8 samples
  • Fecal Coliform 12 samples

No private-well PFAS data for Citrus County

We have no private well sampling data for PFAS compounds (PFOA, PFOS, PFNA, and related chemicals) in Citrus County. PFAS has been detected in local public water systems (UCMR 5 data) — indicated by the "municipal" badge in the table above — but this does not directly indicate private well contamination. 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 Citrus County

149 Active public water systems
123,866 Residents on public water
31% Households on private wells

Public water systems in Citrus 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 Citrus 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 Citrus County Prevalence FL Average Source Year
Arsenic Kidney disease rate 4.7% 3.4% 2020
Arsenic Cancer prevalence 6.1% 6.8% 2020

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