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Saint Hilaire

What EPA’s and Minnesota’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
257 people
Connections
114
Water source
Groundwater
Based in
St. Hilaire, MN
County
Pennington
Owner
Local government
The ZIP code it serves

56754

The short answer

Nothing in EPA’s and Minnesota’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. No health-based violations on file since 2016.

What was found

Haloacetic acids (HAA5), total trihalomethanes (TTHM) and nitrate: Minnesota’s yearly summaries per water system, 2023 to 2025, with EPA’s 2012 to 2019 file for earlier years.

Fluoride: EPA’s compliance monitoring file, samples taken from Feb. 15, 2012 to Nov. 19, 2019. Newer results are in the utility’s annual water quality report.

Below EPA’s limits3

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

31.3ppb

Highest yearly average, 2025

Averaged by year, the highest was 31.3 ppb, in 2025, below EPA’s legal limit of 60 ppb. That is the only year on file.

What handles it

No certification claim covers this compound yet.

Fluoride

Forms or is added in treatment

Below EPA’s limits

1.3ppm

Highest yearly average, 2012 to 2019

2019 average: 1.1 ppm

Averaged by year, the highest was 1.3 ppm, in 2012, below EPA’s legal limit of 4.0 ppm. Its highest single sample was 1.6 ppm. In 2019, the latest year on file, its four samples averaged 1.1 ppm.

What handles it

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

17.7ppb

Highest yearly average, 2025

Averaged by year, the highest was 17.7 ppb, in 2025, below EPA’s legal limit of 80 ppb. That is the only year on file.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
2 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Lead
  • Nitrate

Violations since 2016

No health-based violations on file with EPA since 2016. There is 1 monitoring or reporting violation: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Haloacetic acids (HAA5), total trihalomethanes (TTHM) and nitrate results here are Minnesota’s own yearly summaries from 2023 on, with EPA’s national file for 2012 to 2019. Fluoride comes from EPA’s file alone, which ends in 2019. Saint Hilaire’s own annual report, which it must send you every year, has newer results for those and 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; Minnesota’s yearly summaries cover 2023 to 2025; EPA’s compliance samples are from Feb. 15, 2012 to Nov. 19, 2019.

Testing your own tap

Saint Hilaire’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 Minnesota certifies.

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

  • AC Analytical & Consulting, LLC

    Puposky, MN · about 61 miles

    Certified for bacteria, nitrate

    (218) 243-3328

All 24 certified labs for Minnesota

Sources

PWSID MN1570002. Rebuilt from EPA data on Oct. 18, 2026.

Nearby

All Minnesota utilities

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