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Tap Water Quality Report

Tap water quality in KEARNS, Utah

Served by KEARNS IMPROVEMENT DISTRICT. 56,700 residents.

Average score 56/100
Utilities 1
Population 56,700
Quick answer

Tap water in KEARNS, Utah receives a grade of F (56/100) from TapWaterSafety.org. It's served by KEARNS IMPROVEMENT DISTRICT. The most significant water quality concerns are: Arsenic significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?

What's in KEARNS's tap water

Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving KEARNS.

Arsenic significantly above health guideline

Moderate concern

Arsenic detected at 1.78 ppb, 446x above the EWG health guideline of 0.004 ppb.

Haloacetic acids (HAA9) significantly above health guideline

Moderate concern

Haloacetic acids (HAA9) detected at 23.9 ppb, 398x above the EWG health guideline of 0.06 ppb.

Total trihalomethanes (TTHMs) significantly above health guideline

Moderate concern

Total trihalomethanes (TTHMs) detected at 40.9 ppb, 273x above the EWG health guideline of 0.15 ppb.

EPA compliance record

Official U.S. EPA records for KEARNS IMPROVEMENT DISTRICT (system ID UTAH18011) for the last 3 years. Checked 2026-10-07.

No health-based violations. EPA recorded one quarter with a testing, reporting or notice violation.
1 of 12quarters with a violation
Nolead above EPA action level
07/09/2025last state inspection
RuleTypeSinceStatus
Consumer Confidence Rule Other (e.g. public notice) 07/01/2023 Open

Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.

Recommended filters for KEARNS

Filters matched to the specific contaminants in KEARNS's water supply.

Reverse osmosis certified for arsenic (NSF/ANSI 58)

$429-$599

Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.

AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon

Carbon filter certified for VOCs (NSF/ANSI 53)

$180-$599

Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.

Aquasana AQ-5300 Under-Sink Filter
$180-$240 NSF 42, 53, 401, 372
Editorial pick · affiliate link coming soon
AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon

Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.

All contaminants detected in KEARNS's tap water

Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →

Contaminant Detected EWG
US health-based
EPA
US legal
EU DWD
Europe
WHO
global
CA PHG
strictest US
Tested
sample year
Status
Arsenic
Heavy metal
1.78 ppb 0.004 10.0 10 10 0.004 — 446× over
Haloacetic acids (HAA9)
Disinfection byproduct
23.9 ppb 0.06 — — — — — 398× over
Total trihalomethanes (TTHMs)
Disinfection byproduct
40.9 ppb 0.15 80.0 100 — — — 273× over
Haloacetic acids (HAA5)
Disinfection byproduct
19.2 ppb 0.1 60.0 60 — — — 192× over
Bromodichloromethane
Disinfection byproduct
9.65 ppb 0.06 — — — — — 161× over
Trichloroacetic acid
Disinfection byproduct
9.62 ppb 0.1 — — — — — 96× over
Chloroform
Disinfection byproduct
26.4 ppb 0.4 — — — — — 66× over
Dichloroacetic acid
Disinfection byproduct
9.44 ppb 0.2 — — — — — 47× over
Dibromochloromethane
Disinfection byproduct
3.38 ppb 0.1 — — — — — 34× over
Chromium (hexavalent)
Heavy metal
0.631 ppb 0.02 — — — — — 32× over
Nitrate and nitrite*
Inorganic
1.49 ppm 0.14 10.0 11.3 11.3 10 — 11× over
Nitrate
Inorganic
1.23 ppm 0.14 10.0 11.3 11.3 10 — 8.8× over
Uranium*
Radiological
2.04 pCi/L 0.43 20.0 30 30 0.43 — 4.8× over
Radium, combined (-226 and -228)
Radiological
0.2 pCi/L 0.05 5.0 — — — — 4.1× over
Dibromoacetic acid
Disinfection byproduct
0.118 ppb 0.03 — — — — — 3.9× over
Chlorate
Disinfection byproduct
82.1 ppb 210.0 — — — — — Below guideline
Bromoform
Disinfection byproduct
0.148 ppb 0.5 — — — — — Below guideline
Vanadium
Other
3.99 ppb 21.0 — — — — — Below guideline
Barium
Heavy metal
69.5 ppb 700.0 2000.0 — 1300 2000 — Below guideline
Selenium
Heavy metal
1.3 ppb 30.0 50.0 20 40 30 — Below guideline
Manganese
Heavy metal
2.61 ppb 100.0 — 50 80 — — Below guideline
Molybdenum
Other
1.01 ppb 40.0 — — — — — Below guideline
Monochloroacetic acid*
Disinfection byproduct
0.0933 ppb 53.0 — — — — — Below guideline
Strontium
Radiological
0.42 ppb 1500.0 — — — — — Below guideline
Cyanide
Inorganic
2.96 ppb — 200.0 50 70 150 — Below guideline
Fluoride
Inorganic
0.39 ppm — 4.0 1.5 1.5 — — Below guideline
Lithium
Other
15.0 ppb — — — — — — Below guideline

All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.

Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.

Treatment plant contact info

For service issues, water quality concerns, or to request a Consumer Confidence Report from KEARNS IMPROVEMENT DISTRICT.

Treatment Plant

Facility#9 4550 S 6000 W CHLORINATOR

ZIP codes served

KEARNS's public water systems serve the following ZIP codes: