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Tap water quality report

Layton, UT

EPA monitoring detected 22 contaminants across the 1 water supplier serving Layton. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
82,000
people served
22
contaminants found
Utah rankings Lead in Utah PFAS in Utah

What was found in Layton's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
1170 µg/L 12%
of the EPA limit 10000 µg/L
 1/1 SYR4
Nitrate-Nitrite
1170 µg/L 12%
of the EPA limit 10000 µg/L
 1/1 SYR4
Copper
983.367 µg/L 76%
of the EPA limit 1300 µg/L
 1/1 SYR4
Fluoride
792 µg/L 20%
of the EPA limit 4000 µg/L
 1/1 SYR4
Barium
172 µg/L 8.6%
of the EPA limit 2000 µg/L
 1/1 SYR4
TTHM
51.6 µg/L 65%
of the EPA limit 80 µg/L
 1/1 SYR4
Total Haloacetic Acids (HAA5)
42.11 µg/L 70%
of the EPA limit 60 µg/L
 1/1 SYR4
Chloroform
37.4 µg/L
No EPA limit set
 1/1 SYR4
Lead
16.362 µg/L 109%
of the EPA limit, in the worst sample — 15 µg/L
 1/1 SYR4
Lithium
14 µg/L
No EPA limit set
 1/1 UCMR-5
Bromodichloromethane
11.3 µg/L
No EPA limit set
 1/1 SYR4
Trichloroacetic Acid
10.8 µg/L
No EPA limit set
 1/1 SYR4
Dichloroacetic Acid
9.6 µg/L
No EPA limit set
 1/1 SYR4
Dibromochloromethane
5.5 µg/L
No EPA limit set
 1/1 SYR4
Gross Alpha, Excl. Radon And U
4.38 pCi/L 29%
of the EPA limit 15 pCi/L
 1/1 SYR4
Chromium
3.49 µg/L 3.5%
of the EPA limit 100 µg/L
 1/1 SYR4
Bromoform
2 µg/L
No EPA limit set
 1/1 SYR4
Gross Beta Particle Activity
1.6 pCi/L
No EPA limit set
 1/1 SYR4
Dibromoacetic Acid
1.4 µg/L
No EPA limit set
 1/1 SYR4
Arsenic
1.03 µg/L 10%
of the EPA limit 10 µg/L
 1/1 SYR4
Selenium
0.5000 µg/L 1%
of the EPA limit 50 µg/L
 1/1 SYR4
Lead
0.0041 mg/L 27%
of the EPA limit 0.0150 mg/L
 1/1 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Layton

SupplierPopulation served
LAYTON CITY WATER SYSTEM 82,000

Frequently asked questions about Layton tap water

Is Layton tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Layton. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Layton?

1 public water supplier report drinking-water monitoring for Layton, Utah to the EPA. Each is listed above with its population served.

What contaminants are in Layton's water?

The contaminants EPA monitoring detected in Layton include Nitrate, Nitrate-Nitrite, Copper, Fluoride, Barium. The full list, with the highest level found and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.