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 |
|---|---|---|---|
| TT | Health-based | Resolved | 2024-10-17 |
| TT | Health-based | Resolved | 2024-10-17 |
| TT | Health-based | Resolved | 2024-10-17 |
| TT | Health-based | Resolved | 2024-10-17 |
| RPT | Monitoring | Resolved | 2026-01-01 |
| RPT | Monitoring | Resolved | 2026-01-01 |
| Other | Monitoring | Resolved | 2025-11-19 |
| Other | Monitoring | Resolved | 2025-11-19 |
| Other | Monitoring | Resolved | 2025-10-02 |
| Other | Monitoring | Resolved | 2025-10-02 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 320 µg/L 25% of the EPA limit 1300 µg/L | 23/30 | SYR4 | 2013–2019 |
| Lead | 8 µg/L 53% of the EPA limit 15 µg/L | 21/30 | SYR4 | 2013–2019 |
| Nitrate | 3800 µg/L 38% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Lead | 0.0011 mg/L 7.3% of the EPA limit 0.0150 mg/L | 7/7 | LCR | 2025 |
| TTHM | 2.1 µg/L 2.6% of the EPA limit 80 µg/L | 7/14 | SYR4 | 2012–2019 |
| Arsenic | 2.6 µg/L 26% of the EPA limit 10 µg/L | 1/1 | SYR4 | 2013 |
| Barium | 10 µg/L 0.5% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2013 |
| Chromium | 9.1 µg/L 9.1% of the EPA limit 100 µg/L | 1/1 | SYR4 | 2013 |
| Fluoride | 1000 µg/L 25% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2013 |
| Nitrate-Nitrite | 3400 µg/L 34% of the EPA limit 10000 µg/L | 1/1 | SYR4 | 2013 |
61 contaminants tested, none detected
Utility contact
Frequently asked questions about Desert Foothills
Is Desert Foothills tap water safe to drink?
EPA monitoring detected 10 contaminants in Desert Foothills'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 Desert Foothills's water?
EPA monitoring detected Copper, Lead, Nitrate, Lead, TTHM, and others. The full list with the level and data source for each is above.
How many people does Desert Foothills serve?
Desert Foothills reports serving 3,091 people in Arizona, per its EPA record.
Has Desert Foothills had any water quality violations?
The EPA has 62 violations on file for Desert Foothills, of which 4 are health-based (a contaminant limit or required treatment was breached) and 2 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.