Data & Methodology — Hudspeth County

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

Contaminant Data — All Analytes

704 well testing events on record, covering 13 analytes. Data spans 1948 to 2019.

Contaminant Samples Years Detection Rate Distribution LowModHigh vs. Limit vs. TX Avg
Sulfate 34 1974–1992 100%
280% of limit ↑ 881% above
Chloride 34 1974–1992 100%
136% of limit ↑ 280% above
Nitrate 60 1990–1999 98%
30% of limit ↑ 33% above
Uranium 41 1988–2018 88%
56% of limit ↑ 260% above
Iron 119 1943–2018 51%
20% of limit ↓ 87% below
Fluoride 697 1939–2018 100%
48% of limit ↑ 99% above
Manganese 97 1954–2018 31%
28% of limit ↓ 57% below
Arsenic 128 1980–2018 14%
41% of limit ~ typical
Lead 53 1981–2018 11%
15% of limit ~ typical
Nitrite 22 1990–1991 9%
3% of limit ↑ 191% above
pH 34 1974–1992 100%
— ~ typical
Hardness 34 1974–1992 100%
— ↑ 361% above
Sodium 33 1974–1992 100%
— ↑ 118% 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 TX.

Compare your result with Hudspeth County

Of the 128 arsenic tests on record for Hudspeth County (1980–2018), 86% found none.

Of the 34 chloride tests on record for Hudspeth County (1974–1992), 0% found none, and half were below 340 mg/L.

Of the 697 fluoride tests on record for Hudspeth County (1939–2018), 0% found none, and half were below 1.9 mg/L.

Of the 119 iron tests on record for Hudspeth County (1943–2018), 49% found none.

Of the 53 lead tests on record for Hudspeth County (1981–2018), 89% found none.

Of the 97 manganese tests on record for Hudspeth County (1954–2018), 69% found none.

Of the 60 nitrate tests on record for Hudspeth County (1990–1999), 2% found none, and half were below 2.94 mg/L.

Of the 34 sulfate tests on record for Hudspeth County (1974–1992), 0% found none, and half were below 700 mg/L.

Of the 41 uranium tests on record for Hudspeth County (1988–2018), 12% found none, and half were below 15.8 µg/L.

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Data Coverage & Gaps

Well-sampled analytes (15+ samples)

  • Sulfate 34 samples
  • Chloride 34 samples
  • Nitrate 60 samples
  • Uranium 41 samples
  • Iron 119 samples
  • Fluoride 697 samples
  • Manganese 97 samples
  • Arsenic 128 samples
  • Lead 53 samples
  • Nitrite 22 samples
  • pH 34 samples
  • Hardness 34 samples
  • Sodium 33 samples

No private-well PFAS data for Hudspeth County

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

8 Active public water systems
6,521 Residents on public water
5% Households on private wells

Public water systems in Hudspeth 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 Hudspeth 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 Hudspeth County Prevalence TX Average Source Year
Arsenic Cancer prevalence 4.6% 6.1% 2020
Arsenic Kidney disease rate 3.9% 3.3% 2020

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