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 |
|---|---|---|---|
| Other | Monitoring | Resolved | 2017-10-01 |
| Other | Monitoring | Resolved | 2017-10-01 |
| Other | Monitoring | Resolved | 2017-10-01 |
| MR | Monitoring | Resolved | 2009-01-01 → 2009-12-31 |
| MR | Monitoring | Resolved | 2009-01-01 → 2009-12-31 |
| MR | Monitoring | Resolved | 2009-01-01 → 2009-12-31 |
| MR | Monitoring | Resolved | 2009-01-01 → 2009-12-31 |
| MR | Monitoring | Resolved | 2009-01-01 → 2009-12-31 |
| MR | Monitoring | Resolved | 2009-01-01 → 2009-12-31 |
| MR | Monitoring | Resolved | 2009-01-01 → 2009-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 59.225 µg/L 74% of the EPA limit 80 µg/L
worst single sample: 100.7 µg/L | 60/64 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 38.415 µg/L 64% of the EPA limit 60 µg/L
worst single sample: 48.7 µg/L | 60/64 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 17.69 µg/L No EPA limit set
worst single sample: 24 µg/L | 54/58 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 15.595 µg/L No EPA limit set
worst single sample: 21.4 µg/L | 54/58 | SYR4 | 2012–2019 |
| Bromodichloromethane | 5.98 µg/L No EPA limit set
worst single sample: 6.4 µg/L | 53/57 | SYR4 | 2012–2019 |
| Chloroform | 61.36 µg/L No EPA limit set
worst single sample: 96.8 µg/L | 53/57 | SYR4 | 2012–2019 |
| Copper | 560.66 µg/L 43% of the EPA limit 1300 µg/L
worst single sample: 620 µg/L | 30/30 | SYR4 | 2013–2019 |
| Lead | 5.43 µg/L 36% of the EPA limit 15 µg/L
worst single sample: 5.8 µg/L | 28/30 | SYR4 | 2013–2019 |
| Lead | 0.0027 mg/L 18% of the EPA limit 0.0150 mg/L | 20/20 | LCR | 2025 |
| Dibromochloromethane | 1.18 µg/L No EPA limit set
worst single sample: 1.3 µg/L | 13/57 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 26.8 µg/L No EPA limit set | 1/58 | SYR4 | 2012–2019 |
3 contaminants tested, none detected
Utility contact
Frequently asked questions about Castledale
Is Castledale tap water safe to drink?
EPA monitoring detected 11 contaminants in Castledale'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 Castledale's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, Trichloroacetic Acid, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Castledale serve?
Castledale reports serving 1,700 people in Utah, per its EPA record.
Has Castledale had any water quality violations?
The EPA has 139 violations on file for Castledale, of which 0 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.