Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
3
health-based violations
217
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2017-09-09 |
| TT | Health-based | Resolved | 2017-09-09 |
| TT | Health-based | Resolved | 2017-09-09 |
| MR | Monitoring | Resolved | 2018-07-01 |
| MR | Monitoring | Resolved | 2018-07-01 |
| MR | Monitoring | Resolved | 2018-07-01 |
| MR | Monitoring | Resolved | 2017-11-01 |
| MR | Monitoring | Resolved | 2017-11-01 |
| MR | Monitoring | Resolved | 2017-11-01 |
| MR | Monitoring | Resolved | 2017-10-01 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
Other contaminants detected
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 this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 63.34 µg/L 79% of the EPA limit 80 µg/L
worst single sample: 92 µg/L | 345/345 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 57.1665 µg/L 95% of the EPA limit 60 µg/L
worst single sample: 71.6 µg/L | 332/333 | SYR4 | 2012–2019 |
| Nitrate | 4521.9 µg/L 45% of the EPA limit 10000 µg/L
worst single sample: 5500 µg/L | 328/334 | SYR4 | 2012–2019 |
| Copper | 347.92 µg/L 27% of the EPA limit 1300 µg/L
worst single sample: 2700 µg/L | 204/341 | SYR4 | 2012–2019 |
| Fluoride | 700.4 µg/L 18% of the EPA limit 4000 µg/L
worst single sample: 2100 µg/L | 200/223 | SYR4 | 2012–2019 |
| Barium | 106.275 µg/L 5.3% of the EPA limit 2000 µg/L
worst single sample: 147 µg/L | 164/170 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 4543.52 µg/L 45% of the EPA limit 10000 µg/L
worst single sample: 5500 µg/L | 157/163 | SYR4 | 2012–2019 |
| Selenium | 3 µg/L 6% of the EPA limit 50 µg/L
worst single sample: 4.6 µg/L | 113/171 | SYR4 | 2012–2019 |
| Chloroform | 44.612 µg/L No EPA limit set
worst single sample: 55.36 µg/L | 109/110 | SYR4 | 2013–2019 |
| Bromodichloromethane | 12.6635 µg/L No EPA limit set
worst single sample: 16.57 µg/L | 108/110 | SYR4 | 2013–2019 |
| Dibromochloromethane | 3.474 µg/L No EPA limit set
worst single sample: 4.61 µg/L | 97/103 | SYR4 | 2013–2019 |
| Lead | 7.701 µg/L 51% of the EPA limit 15 µg/L
worst single sample: 27.774 µg/L | 94/345 | SYR4 | 2012–2019 |
| Arsenic | 1.445 µg/L 14% of the EPA limit 10 µg/L
worst single sample: 3.1 µg/L | 92/171 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 27.73 µg/L No EPA limit set
worst single sample: 30.23 µg/L | 84/84 | SYR4 | 2015–2019 |
| Trichloroacetic Acid | 19.4105 µg/L No EPA limit set
worst single sample: 23.32 µg/L | 84/84 | SYR4 | 2015–2019 |
| Monochloroacetic Acid | 2.283 µg/L No EPA limit set
worst single sample: 2.68 µg/L | 58/82 | SYR4 | 2015–2019 |
| Lithium | 42.8 µg/L No EPA limit set | 25/52 | UCMR-5 | 2024 |
| Gross Alpha, Excl. Radon And U | 3.29 pCi/L 22% of the EPA limit 15 pCi/L
worst single sample: 4.7 pCi/L | 23/51 | SYR4 | 2012–2019 |
| Cyanide | 5.763 µg/L 2.9% of the EPA limit 200 µg/L
worst single sample: 11.9 µg/L | 20/171 | SYR4 | 2012–2019 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L | 20/20 | LCR | 2024 |
| Gross Beta Particle Activity | 6.56 pCi/L No EPA limit set
worst single sample: 7.4 pCi/L | 15/22 | SYR4 | 2014–2019 |
| Chromium | 6.85 µg/L 6.8% of the EPA limit 100 µg/L
worst single sample: 7 µg/L | 4/164 | SYR4 | 2012–2019 |
| Thallium, Total | 25.56 µg/L 1278% of the EPA limit, at the 95th percentile of samples — 2 µg/L
worst single sample: 30 µg/L | 4/170 | SYR4 | 2012–2019 |
| Nitrite | 92.4 µg/L 9.2% of the EPA limit 1000 µg/L
worst single sample: 100 µg/L | 3/164 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 6.39 µg/L 128% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 7 µg/L | 3/160 | SYR4 | 2012–2019 |
| Antimony, Total | 0.5000 µg/L 8.3% of the EPA limit 6 µg/L | 2/171 | SYR4 | 2012–2019 |
| Bromoform | 0.6575 µg/L No EPA limit set
worst single sample: 0.6600 µg/L | 2/104 | SYR4 | 2014–2019 |
| Cadmium | 2.095 µg/L 42% of the EPA limit 5 µg/L
worst single sample: 2.1 µg/L | 2/171 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.4795 pCi/L 9.6% of the EPA limit 5 pCi/L
worst single sample: 0.5000 pCi/L | 2/3 | SYR4 | 2012–2014 |
| Dibromoacetic Acid | 1.0685 µg/L No EPA limit set
worst single sample: 1.07 µg/L | 2/84 | SYR4 | 2015–2019 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L | 2/170 | SYR4 | 2012–2019 |
| Beryllium, Total | 1 µg/L 25% of the EPA limit 4 µg/L | 1/171 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 15.3 µg/L 255% of the EPA limit, at the 95th percentile of samples — 6 µg/L | 1/147 | SYR4 | 2012–2019 |
| Toluene | 4.2 µg/L 0.4% of the EPA limit 1000 µg/L | 1/160 | SYR4 | 2012–2019 |
69 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Salt Lake City Water
Is Salt Lake City Water tap water safe to drink?
EPA monitoring detected 38 contaminants in Salt Lake City Water's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Salt Lake City Water's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Nitrate, Copper, Fluoride, and others. The full list with the level and data source for each is above.
How many people does Salt Lake City Water serve?
Salt Lake City Water reports serving 383,612 people in Utah, per its EPA record.
Has Salt Lake City Water had any water quality violations?
The EPA has 217 violations on file for Salt Lake City Water, of which 3 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
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.