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Tap water quality report

ZIP 84102 — Salt Lake City, UT

EPA monitoring across the 2 water suppliers serving ZIP 84102 in Salt Lake City, UT detected 47 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
482,947
people served
47
contaminants found

What was found in ZIP 84102

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
4543.52 µg/L 45%
of the EPA limit 10000 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
2/2 SYR4
Nitrate
4521.9 µg/L 45%
of the EPA limit 10000 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
2/2 SYR4
Fluoride
700.4 µg/L 18%
of the EPA limit 4000 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 795 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Copper
347.92 µg/L 27%
of the EPA limit 1300 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 363.5 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Barium
106.275 µg/L 5.3%
of the EPA limit 2000 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 144.9 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Lithium
42.8 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024
Highest in the ZIP: 98 µg/L — JORDAN VALLEY WCD · 99,335 people · 2025
2/2 UCMR-5
Nitrite
92.4 µg/L 9.2%
of the EPA limit 1000 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
1/2 SYR4
TTHM
63.34 µg/L 79%
of the EPA limit 80 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 80.45 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Chloroform
44.612 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 65.085 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
57.1665 µg/L 95%
of the EPA limit 60 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
2/2 SYR4
Dichloroacetic Acid
27.73 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
2/2 SYR4
Thallium, Total
25.56 µg/L 1278%
of the EPA limit, at the 95th percentile of samples — 2 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
2/2 SYR4
Trichloroacetic Acid
19.4105 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 24.055 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Di(2-ethylhexyl) Phthalate
15.3 µg/L 255%
of the EPA limit, at the 95th percentile of samples — 6 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
1/2 SYR4
Bromodichloromethane
12.6635 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 14.69 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Gross Beta Particle Activity
6.56 pCi/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 14.4 pCi/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Combined Uranium
10.67 µg/L 36%
of the EPA limit 30 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
Lead
7.701 µg/L 51%
of the EPA limit 15 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
2/2 SYR4
Chromium
6.85 µg/L 6.8%
of the EPA limit 100 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
2/2 SYR4
Selenium
3 µg/L 6%
of the EPA limit 50 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 6.43 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Tetrachloroethylene
6.39 µg/L 128%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
3.29 pCi/L 22%
of the EPA limit 15 pCi/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 6.08 pCi/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Cyanide
5.763 µg/L 2.9%
of the EPA limit 200 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
2/2 SYR4
Arsenic
1.445 µg/L 14%
of the EPA limit 10 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 4.35 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Toluene
4.2 µg/L 0.4%
of the EPA limit 1000 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
1/2 SYR4
Dibromochloromethane
3.474 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 3.7375 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Monochloroacetic Acid
2.283 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 2.93 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Dalapon
2.2 µg/L 1.1%
of the EPA limit 200 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
Cadmium
2.095 µg/L 42%
of the EPA limit 5 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
0.4795 pCi/L 9.6%
of the EPA limit 5 pCi/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2014
Highest in the ZIP: 1.422 pCi/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Dibromoacetic Acid
1.0685 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 1.385 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Bromoform
0.6575 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 1.3525 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
Beryllium, Total
1 µg/L 25%
of the EPA limit 4 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
1/2 SYR4
Carbofuran
1 µg/L 2.5%
of the EPA limit 40 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
Oxamyl
1 µg/L 0.5%
of the EPA limit 200 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
Antimony, Total
0.5000 µg/L 8.3%
of the EPA limit 6 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
1/2 SYR4
2,4,5-TP
0.4400 µg/L 0.9%
of the EPA limit 50 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
Dinoseb
0.4400 µg/L 6.3%
of the EPA limit 7 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
Mercury
0.2000 µg/L 10%
of the EPA limit 2 µg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 0.2950 µg/L — JORDAN VALLEY WCD · 99,335 people · 2019
2/2 SYR4
2,4-D
0.2200 µg/L 0.3%
of the EPA limit 70 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
Picloram
0.2200 µg/L 0%
of the EPA limit 500 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
Pentachlorophenol
0.0880 µg/L 8.8%
of the EPA limit 1 µg/L
Highest in the ZIP: JORDAN VALLEY WCD · 99,335 people · 2019
1/2 SYR4
PFHXS
0.0182 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024
1/2 UCMR-5
PFOS
0.0071 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024
1/2 UCMR-5
Pfpea
0.0062 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024
1/2 UCMR-5
Pfhxa
0.0057 µg/L
No EPA limit set
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024
1/2 UCMR-5
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024
Highest in the ZIP: 0.0050 mg/L — JORDAN VALLEY WCD · 99,335 people · 2025
2/2 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 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 84102

SupplierStatePopulation served
SALT LAKE CITY WATER SYSTEM UT 383,612
JORDAN VALLEY WCD UT 99,335

Frequently asked questions about ZIP 84102 tap water

Is the tap water in ZIP 84102 safe to drink?

EPA testing detected 47 contaminants across the water suppliers serving ZIP 84102. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 84102?

2 public water suppliers report EPA drinking-water monitoring for ZIP 84102. Each is listed above with its population served.

What contaminants are in ZIP 84102's water?

EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.