What was found in ZIP 84128
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.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 4521.9 µg/L 45% of the EPA limit 10000 µg/L Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019
Highest in the ZIP: 6400 µg/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2019 | 3/3 | SYR4 |
| 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 | 3/3 | 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: 829.5 µg/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2018 | 3/3 | 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: 413.14 µg/L — MAGNA WATER DISTRICT · 32,100 people · 2019 | 3/3 | 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: 258 µg/L — MAGNA WATER DISTRICT · 32,100 people · 2024 | 3/3 | UCMR-5 |
| 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 | 3/3 | SYR4 |
| 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 | 1/3 | 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: 72.14 µg/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2019 | 3/3 | 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 | 3/3 | 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: 56.73 µg/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2019 | 3/3 | 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: 34.63 pCi/L — MAGNA WATER DISTRICT · 32,100 people · 2017 | 3/3 | SYR4 |
| Dichloroacetic Acid | 27.73 µg/L No EPA limit set Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019 | 3/3 | 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 | 1/3 | 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: 24.64 µg/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2019 | 3/3 | 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: 15.85 µg/L — MAGNA WATER DISTRICT · 32,100 people · 2019 | 3/3 | 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: 15.5 µg/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2019 | 3/3 | 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 | 1/3 | 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: 12.72 µg/L — MAGNA WATER DISTRICT · 32,100 people · 2019 | 3/3 | 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: 11 µg/L — MAGNA WATER DISTRICT · 32,100 people · 2019 | 3/3 | 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: 8.6 µg/L — MAGNA WATER DISTRICT · 32,100 people · 2019 | 3/3 | 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 | 3/3 | 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 | 1/3 | 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
Highest in the ZIP: 6.6 µg/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2018 | 2/3 | SYR4 |
| Xylenes, Total | 6.53 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the ZIP: MAGNA WATER DISTRICT · 32,100 people · 2019 | 1/3 | 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 | 1/3 | SYR4 |
| 1,1,2-Trichloroethane | 5.6 µg/L 112% of the EPA limit, at the 95th percentile of samples — 5 µg/L Highest in the ZIP: MAGNA WATER DISTRICT · 32,100 people · 2019 | 1/3 | 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: 4.2 pCi/L — MAGNA WATER DISTRICT · 32,100 people · 2017 | 3/3 | 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 | 1/3 | 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: 3.6385 µg/L — MAGNA WATER DISTRICT · 32,100 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 2.283 µg/L No EPA limit set Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2019 | 1/3 | 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 | 1/3 | 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 | 1/3 | SYR4 |
| Ethylbenzene | 0.9800 µg/L 0.1% of the EPA limit 700 µg/L Highest in the ZIP: MAGNA WATER DISTRICT · 32,100 people · 2019 | 1/3 | 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: 0.6980 pCi/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2017 | 2/3 | 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 | 1/3 | 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: 0.3500 µg/L — GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2018 | 2/3 | SYR4 |
| Asbestos | 0.1600 MFL 2.3% of the EPA limit 7 MFL Highest in the ZIP: GRANGER-HUNTER IMPROVEMENT DISTRICT · 121,083 people · 2016 | 1/3 | SYR4 |
| PFHXS | 0.0182 µg/L No EPA limit set Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024 | 1/3 | UCMR-5 |
| PFOS | 0.0071 µg/L No EPA limit set Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024 | 1/3 | UCMR-5 |
| Pfpea | 0.0062 µg/L No EPA limit set Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024 | 1/3 | UCMR-5 |
| Pfhxa | 0.0057 µg/L No EPA limit set Main supplier: SALT LAKE CITY WATER SYSTEM · 383,612 people · 2024 | 1/3 | 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 | 3/3 | 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 84128
| Supplier | State | Population served |
|---|---|---|
| SALT LAKE CITY WATER SYSTEM | UT | 383,612 |
| GRANGER-HUNTER IMPROVEMENT DISTRICT | UT | 121,083 |
| MAGNA WATER DISTRICT | UT | 32,100 |
Frequently asked questions about ZIP 84128 tap water
Is the tap water in ZIP 84128 safe to drink?
EPA testing detected 42 contaminants across the water suppliers serving ZIP 84128. 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 84128?
3 public water suppliers report EPA drinking-water monitoring for ZIP 84128. Each is listed above with its population served.
What contaminants are in ZIP 84128's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.