Data & Methodology — Kinney County

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

Contaminant Data — All Analytes

248 well testing events on record, covering 16 analytes. Data spans 1937 to 2019.

Contaminant Samples Years Detection Rate Distribution LowModHigh vs. Limit vs. TX Avg
Radon 3 1997–2017 100%
11% of limit ↓ 70% below
Sulfate 75 1937–2017 100%
10% of limit ↓ 64% below
Nitrate 55 1937–2017 78%
13% of limit ↓ 42% below
Iron 91 1939–2019 31%
12% of limit ↓ 92% below
Arsenic 71 1990–2019 13%
15% of limit ↓ 61% below
Chloride 82 1937–2017 100%
5% of limit ↓ 87% below
Fluoride 188 1938–2019 93%
5% of limit ↓ 79% below
Lead 70 1990–2019 10%
17% of limit ~ typical
Manganese 82 1939–2019 27%
7% of limit ↓ 89% below
Nitrite 4 1997–2017 0%
— —
Uranium 25 1997–2019 8%
2% of limit ↓ 87% below
Total Coliform 1 1975–2017 67%
— ~ typical
Sodium 30 1971–2017 100%
— ↓ 95% below
pH 55 1959–2017 100%
— ~ typical
Hardness 73 1937–2017 100%
— ~ typical
E. coli 1 2017 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 TX.

Compare your result with Kinney County

Of the 71 arsenic tests on record for Kinney County (1990–2019), 87% found none.

Of the 82 chloride tests on record for Kinney County (1937–2017), 0% found none, and half were below 11.5 mg/L.

Of the 188 fluoride tests on record for Kinney County (1938–2019), 7% found none, and half were below 200 µg/L.

Of the 91 iron tests on record for Kinney County (1939–2019), 69% found none.

Of the 70 lead tests on record for Kinney County (1990–2019), 90% found none.

Of the 82 manganese tests on record for Kinney County (1939–2019), 73% found none.

Of the 55 nitrate tests on record for Kinney County (1937–2017), 22% found none, and half were below 800 µg/L.

Of the 75 sulfate tests on record for Kinney County (1937–2017), 0% found none, and half were below 26 mg/L.

Of the 25 uranium tests on record for Kinney County (1997–2019), 92% found none.

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Data Coverage & Gaps

Well-sampled analytes (15+ samples)

  • Sulfate 75 samples
  • Nitrate 55 samples
  • Iron 91 samples
  • Arsenic 71 samples
  • Chloride 82 samples
  • Fluoride 188 samples
  • Lead 70 samples
  • Manganese 82 samples
  • Uranium 25 samples
  • Sodium 30 samples
  • pH 55 samples
  • Hardness 73 samples

Limited data (<15 samples) — interpret with caution

  • Radon 3 samples
  • Nitrite 4 samples
  • Total Coliform 1 sample
  • E. coli 1 sample

No private-well PFAS data for Kinney County

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

6 Active public water systems
3,795 Residents on public water
9% Households on private wells

Public water systems in Kinney 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 Kinney 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 Kinney County Prevalence TX Average Source Year
Nitrate Cancer prevalence 5.1% 6.1% 2020

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

Last updated: 2026-08-04

Full methodology →