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High Creek Water Co

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
120 people
Connections
38
Water source
Groundwater
Based in
Cove, UT
County
Cache
Owner
Private
The ZIP code it serves

84320

The short answer

2 results are above the health goal. The worst: Arsenic, above the health goal. 1 health-based violation since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2004 to 2027.

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.5 ppm, for the period ending Dec. 31, 1999. None since is on file, so it is not counted as a current finding.

Nitrate: Utah’s own results, samples taken from Aug. 13, 2020 to May 6, 2026, with EPA’s 2012 to 2019 file for earlier years.

Arsenic, haloacetic acids (HAA5), total trihalomethanes (TTHM), fluoride and chromium (total): EPA’s compliance monitoring file, samples taken from Aug. 25, 2014 to Dec. 7, 2018. Newer results are in the utility’s annual water quality report.

Above the health goal2

Arsenic

Comes from the source

Above the health goal

2.6ppb

Highest yearly average, 2016

Averaged by year, the highest was 2.6 ppb, in 2016: below EPA’s legal limit of 10 ppb, but above its health goal of zero. That is the only year on file.

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

3.0ppb

90th percentile, 2025 to 2027

In the latest period, 9 in 10 homes sampled were at or below 3.0 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 limits4

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

15.5ppb

Highest yearly average, 2014 to 2018

Averaged by year, the highest was 15.5 ppb, in 2018, below EPA’s legal limit of 60 ppb. That was also the latest year on file.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

15.6ppb

Highest yearly average, 2014 to 2018

Averaged by year, the highest was 15.6 ppb, in 2018, below EPA’s legal limit of 80 ppb. That was also the latest year on file.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.2ppm

Highest yearly average, 2016

Averaged by year, the highest was 0.2 ppm, in 2016, below EPA’s legal limit of 4.0 ppm. That is the only year on file.

What handles it

Nitrate

Comes from the source

Below EPA’s limits

0.35ppm

Highest sample; found in 4 of 7

2026, one sample: 0.17 ppm

The highest sample, in 2025, was 0.35 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 0.17 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.86 ppm, in 2019.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
One compound tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Chromium (total)

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

    For: 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
Groundwater RuleA significant problem found in a state inspection was not fixed on time.EPA: Failure To Address DeficiencyJuly 1, 2021—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 14 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Nitrate results here are Utah’s own from 2020 on, with EPA’s national file for 2012 to 2019. Arsenic, haloacetic acids (HAA5), total trihalomethanes (TTHM), fluoride and chromium (total) come from EPA’s file alone, which ends in 2019. High Creek Water Co’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; Utah’s results run from Aug. 13, 2020 to May 6, 2026; EPA’s compliance samples are from Aug. 25, 2014 to Dec. 7, 2018.

Testing your own tap

High Creek Water Co’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 High Creek Water Co serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Bear River District Health Department Water Laboratory

    Logan, UT · about 15 miles

    Certified for bacteria, nitrate

    (435) 792-6578

  • Brigham City Laboratory

    Brigham City, UT · about 32 miles

    Certified for bacteria, minerals and other inorganics

    (435) 226-1443

  • Northrup Grumman Space Systems Environmental Laboratory

    Corinne, UT · about 40 miles

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

    (801) 863-8117

All 60 certified labs for Utah

Sources

PWSID UTAH03086. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Cache County

All Utah utilities

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