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 | 1985-10-01 → 1986-09-30 |
| MCL | Health-based | Archived | 1985-10-01 → 1986-09-30 |
| MCL | Health-based | Archived | 1985-10-01 → 1986-09-30 |
| MCL | Health-based | Archived | 1985-10-01 → 1986-09-30 |
| MCL | Health-based | Archived | 1984-10-01 → 1985-09-30 |
| MCL | Health-based | Archived | 1983-10-01 → 1984-06-30 |
| MCL | Health-based | Archived | 1983-10-01 → 1984-09-30 |
| MCL | Health-based | Archived | 1981-10-01 → 1982-09-30 |
| MCL | Health-based | Archived | 1980-07-18 → 1980-10-17 |
| MCL | Health-based | Resolved | 1979-10-01 → 1983-09-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 152.5 µg/L 12% of the EPA limit 1300 µg/L
worst single sample: 520 µg/L | 16/60 | SYR4 | 2013–2019 |
| Bromodichloromethane | 20 µg/L No EPA limit set | 15/15 | SYR4 | 2012–2019 |
| Bromoform | 2.62 µg/L No EPA limit set
worst single sample: 2.9 µg/L | 15/15 | SYR4 | 2012–2019 |
| Chloroform | 34.3 µg/L No EPA limit set
worst single sample: 35 µg/L | 15/15 | SYR4 | 2012–2019 |
| Dibromochloromethane | 12.3 µg/L No EPA limit set
worst single sample: 13 µg/L | 15/15 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 4 µg/L No EPA limit set | 15/15 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2025 |
| TTHM | 67.2 µg/L 84% of the EPA limit 80 µg/L
worst single sample: 70 µg/L | 15/15 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 2.35 µg/L No EPA limit set
worst single sample: 3 µg/L | 14/15 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2 µg/L No EPA limit set | 10/15 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 7.8 µg/L 13% of the EPA limit 60 µg/L
worst single sample: 8 µg/L | 5/15 | SYR4 | 2012–2019 |
| Lead | 4.9 µg/L 33% of the EPA limit 15 µg/L
worst single sample: 5 µg/L | 3/60 | SYR4 | 2013–2019 |
| Nitrate | 100 µg/L 1% of the EPA limit 10000 µg/L | 2/16 | SYR4 | 2012–2019 |
| Lithium | 9.4 µg/L No EPA limit set | 2/2 | UCMR-5 | 2024 |
| Fluoride | 710 µg/L 18% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2013 |
75 contaminants tested, none detected
Utility contact
Frequently asked questions about Nevada Water Supply
Is Nevada Water Supply tap water safe to drink?
EPA monitoring detected 15 contaminants in Nevada Water Supply'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 Nevada Water Supply's water?
EPA monitoring detected Copper, Bromodichloromethane, Bromoform, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Nevada Water Supply serve?
Nevada Water Supply reports serving 6,925 people in Iowa, per its EPA record.
Has Nevada Water Supply had any water quality violations?
The EPA has 126 violations on file for Nevada Water Supply, of which 18 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.