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 | Resolved | 2010-10-01 → 2010-12-31 |
| MCL | Health-based | Resolved | 2010-10-01 → 2010-12-31 |
| MCL | Health-based | Resolved | 2010-10-01 → 2010-12-31 |
| MCL | Health-based | Resolved | 2010-10-01 → 2010-12-31 |
| MCL | Health-based | Resolved | 2010-07-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-07-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-07-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-07-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-07-01 → 2010-09-30 |
| MCL | Health-based | Resolved | 2010-07-01 → 2010-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Arsenic | 14.04 µg/L 140% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 15 µg/L | 39/74 | SYR4 | 2012–2019 |
| Nitrate | 603.5 µg/L 6% of the EPA limit 10000 µg/L
worst single sample: 620 µg/L | 32/32 | SYR4 | 2012–2019 |
| Copper | 156 µg/L 12% of the EPA limit 1300 µg/L
worst single sample: 200 µg/L | 29/30 | SYR4 | 2013–2019 |
| Lead | 10.03 µg/L 67% of the EPA limit 15 µg/L
worst single sample: 10.3 µg/L | 19/30 | SYR4 | 2013–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 8/8 | LCR | 2025 |
| Barium | 635 µg/L 32% of the EPA limit 2000 µg/L
worst single sample: 640 µg/L | 6/6 | SYR4 | 2013–2019 |
| Fluoride | 340 µg/L 8.5% of the EPA limit 4000 µg/L | 6/6 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 529 µg/L 5.3% of the EPA limit 10000 µg/L
worst single sample: 540 µg/L | 2/2 | SYR4 | 2013 |
| Combined Radium (-226 And -228) | 0.3000 pCi/L 6% of the EPA limit 5 pCi/L | 1/2 | SYR4 | 2016 |
| TTHM | 2 µg/L 2.5% of the EPA limit 80 µg/L | 1/16 | SYR4 | 2012–2019 |
70 contaminants tested, none detected
Utility contact
Frequently asked questions about Cottonwood Municipal Water vv3
Is Cottonwood Municipal Water vv3 tap water safe to drink?
EPA monitoring detected 10 contaminants in Cottonwood Municipal Water vv3'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 Cottonwood Municipal Water vv3's water?
EPA monitoring detected Arsenic, Nitrate, Copper, Lead, Lead, and others. The full list with the level and data source for each is above.
How many people does Cottonwood Municipal Water vv3 serve?
Cottonwood Municipal Water vv3 reports serving 1,458 people in Arizona, per its EPA record.
Has Cottonwood Municipal Water vv3 had any water quality violations?
The EPA has 349 violations on file for Cottonwood Municipal Water vv3, of which 49 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.