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 |
|---|---|---|---|
| MR | Monitoring | Resolved | 2021-10-16 |
| MR | Monitoring | Resolved | 2021-10-16 |
| RPT | Monitoring | Resolved | 2021-05-01 |
| RPT | Monitoring | Resolved | 2021-05-01 |
| Other | Monitoring | Resolved | 2016-07-01 |
| MR | Monitoring | Resolved | 2015-10-01 |
| MR | Monitoring | Resolved | 2015-10-01 |
| MR | Monitoring | Resolved | 2014-01-01 → 2014-03-31 |
| MR | Monitoring | Resolved | 2013-10-01 → 2013-12-31 |
| Other | Monitoring | Resolved | 2013-10-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 4400 µg/L 44% of the EPA limit 10000 µg/L
worst single sample: 4600 µg/L | 54/54 | SYR4 | 2012–2019 |
| Copper | 144 µg/L 11% of the EPA limit 1300 µg/L
worst single sample: 260 µg/L | 53/59 | SYR4 | 2012–2018 |
| Lead | 68.76 µg/L 458% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 96 µg/L | 13/59 | SYR4 | 2012–2018 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 8/8 | LCR | 2024 |
| TTHM | 4.98 µg/L 6.2% of the EPA limit 80 µg/L
worst single sample: 5.4 µg/L | 8/8 | SYR4 | 2016–2019 |
| Nitrate-Nitrite | 3654 µg/L 37% of the EPA limit 10000 µg/L
worst single sample: 4150 µg/L | 5/5 | SYR4 | 2012–2017 |
| Arsenic | 1.59 µg/L 16% of the EPA limit 10 µg/L
worst single sample: 1.6 µg/L | 3/3 | SYR4 | 2014–2017 |
| Barium | 71.6 µg/L 3.6% of the EPA limit 2000 µg/L
worst single sample: 76 µg/L | 3/3 | SYR4 | 2014–2017 |
| Fluoride | 258 µg/L 6.5% of the EPA limit 4000 µg/L
worst single sample: 260 µg/L | 3/3 | SYR4 | 2014–2017 |
| Bromodichloromethane | 1.645 µg/L No EPA limit set
worst single sample: 1.7 µg/L | 2/2 | SYR4 | 2019 |
| Dibromochloromethane | 1.94 µg/L No EPA limit set
worst single sample: 2 µg/L | 2/2 | SYR4 | 2019 |
| Bromoform | 0.8000 µg/L No EPA limit set | 1/2 | SYR4 | 2019 |
| Chloroform | 0.9000 µg/L No EPA limit set | 1/2 | SYR4 | 2019 |
| Di(2-ethylhexyl) Phthalate | 0.9400 µg/L 16% of the EPA limit 6 µg/L | 1/20 | SYR4 | 2014–2019 |
| Lithium | 42 µg/L No EPA limit set | 1/1 | UCMR-5 | 2025 |
95 contaminants tested, none detected
Utility contact
Frequently asked questions about Quail Creek Water Company
Is Quail Creek Water Company tap water safe to drink?
EPA monitoring detected 15 contaminants in Quail Creek Water Company'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 Quail Creek Water Company's water?
EPA monitoring detected Nitrate, Copper, Lead, Lead, TTHM, and others. The full list with the level and data source for each is above.
How many people does Quail Creek Water Company serve?
Quail Creek Water Company reports serving 6,812 people in Arizona, per its EPA record.
Has Quail Creek Water Company had any water quality violations?
The EPA has 67 violations on file for Quail Creek Water Company, 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.