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.
9
health-based violations
984
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2009-12-02 |
| TT | Health-based | Resolved | 2009-12-02 |
| TT | Health-based | Resolved | 2009-12-02 |
| TT | Health-based | Resolved | 2009-12-01 |
| TT | Health-based | Resolved | 2009-12-01 |
| TT | Health-based | Resolved | 2009-12-01 |
| MCL | Health-based | Resolved | 2008-09-01 → 2008-09-30 |
| MCL | Health-based | Resolved | 2008-09-01 → 2008-09-30 |
| MCL | Health-based | Resolved | 2008-09-01 → 2008-09-30 |
| MR | Monitoring | Resolved | 2021-10-01 → 2021-12-31 |
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 |
|---|---|---|---|---|
| Nitrate | 1000 µg/L 10% of the EPA limit 10000 µg/L
worst single sample: 1400 µg/L | 198/218 | SYR4 | 2012–2019 |
| Copper | 350.735 µg/L 27% of the EPA limit 1300 µg/L
worst single sample: 1060 µg/L | 62/62 | SYR4 | 2013–2019 |
| Lead | 3.575 µg/L 24% of the EPA limit 15 µg/L
worst single sample: 24.4 µg/L | 46/62 | SYR4 | 2013–2019 |
| Barium | 245.2 µg/L 12% of the EPA limit 2000 µg/L
worst single sample: 261.7 µg/L | 45/45 | SYR4 | 2012–2019 |
| Arsenic | 2.56 µg/L 26% of the EPA limit 10 µg/L
worst single sample: 3.4 µg/L | 38/45 | SYR4 | 2012–2019 |
| Selenium | 8.255 µg/L 17% of the EPA limit 50 µg/L
worst single sample: 10.2 µg/L | 32/45 | SYR4 | 2012–2019 |
| Chloroform | 25.37 µg/L No EPA limit set
worst single sample: 26.8 µg/L | 28/29 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 8.17 pCi/L No EPA limit set
worst single sample: 9 pCi/L | 27/36 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 6.12 pCi/L 41% of the EPA limit 15 pCi/L
worst single sample: 8.3 pCi/L | 25/35 | SYR4 | 2012–2019 |
| Bromodichloromethane | 6.095 µg/L No EPA limit set
worst single sample: 8.4 µg/L | 22/29 | SYR4 | 2012–2019 |
| TTHM | 36.045 µg/L 45% of the EPA limit 80 µg/L
worst single sample: 38.8 µg/L | 22/22 | SYR4 | 2012–2019 |
| Dibromochloromethane | 3.9 µg/L No EPA limit set
worst single sample: 7.8 µg/L | 21/29 | SYR4 | 2012–2019 |
| Fluoride | 500 µg/L 13% of the EPA limit 4000 µg/L | 20/45 | SYR4 | 2012–2019 |
| Lead | 0.0045 mg/L 30% of the EPA limit 0.0150 mg/L | 20/20 | LCR | 2025 |
| Dichloroacetic Acid | 7.96 µg/L No EPA limit set
worst single sample: 13.4 µg/L | 17/22 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 22.38 µg/L 37% of the EPA limit 60 µg/L
worst single sample: 26.3 µg/L | 15/22 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 12.55 µg/L No EPA limit set
worst single sample: 12.9 µg/L | 15/22 | SYR4 | 2012–2019 |
| Bromoform | 3.03 µg/L No EPA limit set
worst single sample: 3.3 µg/L | 10/29 | SYR4 | 2012–2019 |
| Cyanide | 17.35 µg/L 8.7% of the EPA limit 200 µg/L
worst single sample: 24 µg/L | 8/45 | SYR4 | 2012–2019 |
| Lithium | 15 µg/L No EPA limit set | 5/14 | UCMR-5 | 2023 |
| Dibromoacetic Acid | 1.685 µg/L No EPA limit set
worst single sample: 1.7 µg/L | 4/22 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 900 µg/L 9% of the EPA limit 10000 µg/L | 3/3 | SYR4 | 2012–2015 |
| Combined Radium (-226 And -228) | 0.5390 pCi/L 11% of the EPA limit 5 pCi/L
worst single sample: 0.5600 pCi/L | 2/3 | SYR4 | 2012–2019 |
| Thallium, Total | 0.2000 µg/L 10% of the EPA limit 2 µg/L | 1/45 | SYR4 | 2012–2019 |
| Trichloroethylene | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/52 | SYR4 | 2012–2019 |
79 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 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Mountain Regional Water Ssd
Is Mountain Regional Water Ssd tap water safe to drink?
EPA monitoring detected 28 contaminants in Mountain Regional Water Ssd'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 Mountain Regional Water Ssd's water?
EPA monitoring detected Nitrate, Copper, Lead, Barium, Arsenic, and others. The full list with the level and data source for each is above.
How many people does Mountain Regional Water Ssd serve?
Mountain Regional Water Ssd reports serving 8,245 people in Utah, per its EPA record.
Has Mountain Regional Water Ssd had any water quality violations?
The EPA has 984 violations on file for Mountain Regional Water Ssd, of which 9 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.