Data & Methodology — Worth County

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

Contaminant Data — All Analytes

69 well testing events on record, covering 20 analytes. Data spans 1943 to 2026.

Contaminant Samples Years Detection Rate Distribution LowModHigh vs. Limit vs. GA Avg
Nitrate 37 1965–2015 95%
22% of limit ↑ 242% above
Manganese 32 1978–2023 66%
40% of limit ↓ 33% below
Radon 8 1993–2005 100%
9% of limit ↓ 51% below
Iron 32 1978–2023 59%
3% of limit ↓ 94% below
Uranium 24 1993–2023 71%
0% of limit ~ typical
Fluoride 42 1943–2023 62%
2% of limit ↓ 50% below
Nitrite 29 1978–2015 17%
3% of limit ↑ 200% above
HFPO-DA (GenX) municipal 8 2023–2024 0%
— —
Lead 21 1978–2023 71%
3% of limit ↑ 100% above
PFHxS municipal 8 2023–2024 0%
— —
PFOS municipal 8 2023–2024 0%
— —
Sulfate 42 1943–2023 98%
1% of limit ↓ 73% below
Arsenic 21 1978–2023 24%
1% of limit ↓ 78% below
Chloride 53 1943–2023 100%
2% of limit ~ typical
PFNA municipal 8 2023–2024 0%
— —
PFOA municipal 8 2023–2024 0%
— —
pH 51 1965–2023 100%
— ~ typical
Sodium 41 1965–2023 100%
— ↓ 62% below
Hardness 42 1943–2023 100%
— ↑ 37% above
PFBS municipal 8 2023–2024 0%
— —

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 GA.

Data Coverage & Gaps

Well-sampled analytes (15+ samples)

  • Nitrate 37 samples
  • Manganese 32 samples
  • Iron 32 samples
  • Uranium 24 samples
  • Fluoride 42 samples
  • Nitrite 29 samples
  • Lead 21 samples
  • Sulfate 42 samples
  • Arsenic 21 samples
  • Chloride 53 samples
  • pH 51 samples
  • Sodium 41 samples
  • Hardness 42 samples

Limited data (<15 samples) — interpret with caution

  • Radon 8 samples

No private-well PFAS data for Worth County

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

12 Active public water systems
10,214 Residents on public water

Public water systems in Worth 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 Worth 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 Worth County Prevalence GA Average Source Year
Nitrate Cancer prevalence 7.5% 6.3% 2020

Source: CDC PLACES county-level estimates. Raw data: Download Worth 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 GA with at least one sample for that analyte.

Last updated: 2026-08-03

Full methodology →