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Irontown

What EPA’s and Utah’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
75 people
Connections
55
Water source
Groundwater
Based in
Cedar City, UT
County
Iron
Owner
Private
The ZIP code it serves

84720

The short answer

3 results are above the health goal. The worst: Uranium, above the health goal. 8 health-based violations since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2004 to 2025.

Uranium, arsenic, fluoride, chromium (total) and nitrate: Utah’s own results, samples taken from Dec. 12, 2022 to Sept. 14, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal3

Uranium

Comes from the source

Above the health goal

19.2ppb

Highest yearly average, 2022 to 2026

2026 average: 18.1 ppb

Averaged by year, the highest was 19.2 ppb, in 2023: below EPA’s legal limit of 30 ppb, but above its health goal of zero. Its highest single sample was 22.9 ppb. In 2026, the latest year on file, its two samples averaged 18.1 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 20.2 ppb, in 2012.

What handles it

Arsenic

Comes from the source

Above the health goal

3.2ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 3.2 ppb, in 2025: below EPA’s legal limit of 10 ppb, but above its health goal of zero. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 6.0 ppb, in 2013.

What handles it

  • NSF/ANSI 58 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
  • NSF/ANSI 53 look for “Arsenic (Pentavalent)<=50 ppb Reduction”

Lead

Comes from pipes, often your own

Above the health goal

4.5ppb

90th percentile, 2023 to 2025

In the latest period, 9 in 10 homes sampled were at or below 4.5 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits1

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.62ppm

Highest yearly average, 2022 to 2025

2025, one sample: 0.51 ppm

Averaged by year, the highest was 0.62 ppm, in 2022, below EPA’s legal limit of 4.0 ppm. In 2025, the latest year on file, its one sample was 0.51 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.6 ppm, in 2013.

What handles it

2 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Chromium (total)
  • Nitrate

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

  • NSF/ANSI 53

    Claims: Arsenic (Pentavalent)<=50 ppb Reduction, Lead Reduction

    For: Arsenic, Lead

    Other certifiers’ wording: Arsenic (III) (50 ppb influent level)

  • NSF/ANSI 58

    Claims: Uranium, Arsenic (Pentavalent)<=50 ppb Reduction, Lead Reduction

    For: Uranium, Arsenic, Lead

    Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level)

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.

Filters with those claims on a certifier’s listing

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

The best reverse osmosis systems, ranked

The best water filters for lead, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Gross alpha radiation (excluding radon and uranium)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2026 to March 31, 202617 PCI/LArchived
Gross alpha radiation (excluding radon and uranium)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2025 to Dec. 31, 202522 PCI/LArchived
Gross alpha radiation (excluding radon and uranium)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2025 to Sept. 30, 202527 PCI/LArchived
Combined Radium (-226 and -228)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2025 to June 30, 20256.0 PCI/LResolved
Gross alpha radiation (excluding radon and uranium)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2025 to June 30, 202528 PCI/LArchived
Gross alpha radiation (excluding radon and uranium)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2025 to March 31, 202518 PCI/LArchived
Combined Radium (-226 and -228)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2024 to Dec. 31, 20246.0 PCI/LResolved
Gross alpha radiation (excluding radon and uranium)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2023 to Dec. 31, 202316 PCI/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 6 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Uranium, arsenic, fluoride, chromium (total) and nitrate results here are Utah’s own from 2022 on, with EPA’s national file for 2012 to 2019. Irontown’s own annual report, which it must send you every year, has the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Utah’s results run from Dec. 12, 2022 to Sept. 14, 2026.

Testing your own tap

Irontown’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Utah certifies.

The 3 labs Utah certifies closest to the area Irontown serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Southern Utah University Water Laboratory

    Cedar City, UT · about 9 miles

    Certified for nitrate, lead and copper, metals, minerals and other inorganics

    (435) 586-7914

  • Southwest Utah Public Health Laboratory

    St. George, UT · about 40 miles

    Certified for bacteria, nitrate

    (435) 986-2598

  • St. George RWRF Laboratory

    St. George, UT · about 44 miles

    Certified for bacteria

    (435) 627-4269

All 60 certified labs for Utah

Sources

PWSID UTAH11070. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Iron County

All Utah utilities

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