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Nitrate at Thirsty Water Corp

Oklahoma · system OK2002806 · serves 81 people

Band placed by this system's most recent reported result within a rolling three-year window; the three-year range below shows the full spread.

The reading

12.70 mg/L as N
most recent reading · Feb 2026
6.62 to 12.7
three-year range (mg/L as N)
nitrate+nitrite · 10 samples
what this result rests on
81
people served

A single reading is not a complete account of what a household drinks, so the three-year range and the number of tests behind it are shown too — a reading backed by many tests over three years is a fuller picture than one from a single sample.

Source: Oklahoma Department of Environmental Quality record · Oklahoma · system OK2002806 · the three years from August 9, 2023 to August 9, 2026

Where this ranks

This system's nitrate sits in the top 1% nationally. Systems reporting less serve over 99% of everyone on NitrateSmart's tracked supply; the other under 1% are on systems reporting the same or more. That compares what systems reported, not what comes out of any one tap.

Natural backgroundHuman impact likelyHuman impact clearHealth-study rangeAbove the federal limit

What "Above the federal limit" means

This system reported a result at or above 10 mg/L, the enforceable federal drinking-water limit[1][2]. The standard was set to prevent infant methemoglobinemia, an acute illness; infants under about six months and pregnancy are the populations of greatest concern[3].

Boiling does not reduce nitrate — it concentrates it. A system over the limit must notify its customers, so current status and guidance come from the utility — and from a clinician where an infant or a pregnancy is involved.

Sources

  1. U.S. Public Health Service (1962). Drinking Water Standards.
  2. U.S. Environmental Protection Agency (1991). National Primary Drinking Water Regulations. 56 Federal Register 3526.
  3. Ward, M.H., and others (2018). Drinking water nitrate and human health: an updated review. International Journal of Environmental Research and Public Health 15(7):1557. doi:10.3390/ijerph15071557. The federal limit's basis is infant methemoglobinemia; evidence below the limit reviewed, associations inconsistent.

The bands describe how strongly human activity, read from nitrate, has marked a water source — they are not a safety verdict. More on what the numbers mean and where nitrate comes from.

From here

Nitrate across Oklahoma
How this system sits among the state's others, and the Oklahoma story.
What actually removes nitrate
Which home treatments work, which don't, and the one that makes it worse.
NitrateSmart

Nitrate in community water systems, from the utilities’ own compliance reporting.

Results reaching back to July 2023 · current through August 9, 2026.

Data & methods

How this is built
Coverage and gaps

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Educational information, not medical or personal safety advice.