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.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Archived | 1993-09-01 → 1993-09-30 |
| MCL | Health-based | Archived | 1993-09-01 → 1993-09-30 |
| MON | Monitoring | Archived | 2025-12-01 → 2025-12-31 |
| MON | Monitoring | Archived | 2025-12-01 → 2025-12-31 |
| MON | Monitoring | Resolved | 2017-12-01 → 2017-12-31 |
| MON | Monitoring | Resolved | 2017-12-01 → 2017-12-31 |
| MON | Monitoring | Resolved | 2017-12-01 → 2017-12-31 |
| Other | Monitoring | Resolved | 2017-10-01 |
| Other | Monitoring | Resolved | 2017-10-01 |
| Other | Monitoring | Resolved | 2017-10-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Lead | 0.0032 mg/L 21% of the EPA limit 0.0150 mg/L | 24/24 | LCR | 2026 |
| Nitrate | 298.1 µg/L 3% of the EPA limit 10000 µg/L
worst single sample: 300 µg/L | 22/22 | SYR4 | 2012–2017 |
| Copper | 69.6 µg/L 5.4% of the EPA limit 1300 µg/L
worst single sample: 124 µg/L | 21/30 | SYR4 | 2012–2018 |
| Dibromochloromethane | 2.355 µg/L No EPA limit set
worst single sample: 2.4 µg/L | 10/11 | SYR4 | 2013–2019 |
| TTHM | 8.22 µg/L 10% of the EPA limit 80 µg/L
worst single sample: 8.4 µg/L | 10/11 | SYR4 | 2013–2019 |
| Bromodichloromethane | 2.38 µg/L No EPA limit set
worst single sample: 2.5 µg/L | 9/11 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 337.8 µg/L 3.4% of the EPA limit 10000 µg/L
worst single sample: 377 µg/L | 9/9 | SYR4 | 2013–2019 |
| Chloroform | 2.83 µg/L No EPA limit set
worst single sample: 2.9 µg/L | 8/11 | SYR4 | 2013–2019 |
| Lead | 7.33 µg/L 49% of the EPA limit 15 µg/L
worst single sample: 7.9 µg/L | 7/31 | SYR4 | 2012–2018 |
| Arsenic | 1.2 µg/L 12% of the EPA limit 10 µg/L | 4/4 | SYR4 | 2013–2019 |
| Barium | 470.125 µg/L 24% of the EPA limit 2000 µg/L
worst single sample: 473.5 µg/L | 4/4 | SYR4 | 2013–2019 |
| Bromoform | 1.07 µg/L No EPA limit set
worst single sample: 1.1 µg/L | 3/10 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 3.96 pCi/L No EPA limit set
worst single sample: 4.1 pCi/L | 3/3 | SYR4 | 2016–2019 |
| Gross Alpha, Excl. Radon And U | 1.6 pCi/L 11% of the EPA limit 15 pCi/L | 1/3 | SYR4 | 2016–2019 |
| Selenium | 1.5 µg/L 3% of the EPA limit 50 µg/L | 1/4 | SYR4 | 2013–2019 |
| Toluene | 0.5800 µg/L 0.1% of the EPA limit 1000 µg/L | 1/4 | SYR4 | 2016–2019 |
65 contaminants tested, none detected
Utility contact
Frequently asked questions about Zion Canyon Water
Is Zion Canyon Water tap water safe to drink?
EPA monitoring detected 16 contaminants in Zion Canyon 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 Zion Canyon Water's water?
EPA monitoring detected Lead, Nitrate, Copper, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.
How many people does Zion Canyon Water serve?
Zion Canyon Water reports serving 3,380 people in Utah, per its EPA record.
Has Zion Canyon Water had any water quality violations?
The EPA has 17 violations on file for Zion Canyon Water, of which 2 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.