Data & Methodology — Vinton County

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

Contaminant Data — All Analytes

101 well testing events on record, covering 14 analytes. Data spans 1908 to 2024.

Contaminant Samples Years Detection Rate Distribution LowModHigh vs. Limit vs. OH Avg
Iron 100 1980–2014 94%
13% of limit ↓ 97% below
Sulfate 40 1980–2014 100%
16% of limit ↓ 65% below
Manganese 100 1980–2014 92%
30% of limit ↓ 83% below
Lead 78 1980–2014 82%
0% of limit ↓ 100% below
Chloride 97 1980–2014 100%
21% of limit ↑ 38% above
Arsenic 63 1986–2014 87%
0% of limit ↓ 100% below
Fluoride 61 1980–2014 100%
14% of limit ↑ 39% above
Nitrate 19 1980–2000 84%
0% of limit ↓ 100% below
Nitrite 16 1980–2000 94%
0% of limit ↓ 100% below
PFNA 1 2019 0%
— —
PFOA 1 2019 0%
— —
Hardness 73 1980–2014 100%
— ↓ 84% below
pH 69 1980–2005 100%
— ~ typical
Sodium 100 1980–2014 100%
— ↑ 228% above

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 OH.

Compare your result with Vinton County

Of the 63 arsenic tests on record for Vinton County (1986–2014), 13% found none.

Of the 97 chloride tests on record for Vinton County (1980–2014), 0% found none, and half were below 52 mg/L.

Of the 61 fluoride tests on record for Vinton County (1980–2014), 0% found none, and half were below 570 µg/L.

Of the 100 iron tests on record for Vinton County (1980–2014), 6% found none, and half were below 30 µg/L.

Of the 78 lead tests on record for Vinton County (1980–2014), 18% found none.

Of the 100 manganese tests on record for Vinton County (1980–2014), 8% found none, and half were below 11.5 µg/L.

Of the 40 sulfate tests on record for Vinton County (1980–2014), 0% found none, and half were below 39 mg/L.

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Data Coverage & Gaps

Well-sampled analytes (15+ samples)

  • Iron 100 samples
  • Sulfate 40 samples
  • Manganese 100 samples
  • Lead 78 samples
  • Chloride 97 samples
  • Arsenic 63 samples
  • Fluoride 61 samples
  • Nitrate 19 samples
  • Nitrite 16 samples
  • Hardness 73 samples
  • pH 69 samples
  • Sodium 100 samples

Limited data (<15 samples) — interpret with caution

  • PFNA 1 sample
  • PFOA 1 sample

Public vs. Private Water in Vinton County

4 Active public water systems
3,275 Residents on public water
71% Households on private wells

Public water systems in Vinton 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 Vinton 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 Vinton County Prevalence OH Average Source Year
Arsenic Cancer prevalence 7.8% 6.8% 2020
Arsenic Kidney disease rate 3.9% 3.1% 2020
Lead Heart disease rate 7.9% 7.6% 2020

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

Last updated: 2026-08-04

Full methodology →