What was found in Boulder's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| TTHM | 145.54 µg/L 182% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Chloroform | 90.185 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 64.87 µg/L 108% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 42.235 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 33.66 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 22.215 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 12.0505 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 10.0865 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 4.087 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Bromoform | 2.0285 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.454 µg/L No EPA limit set Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: NEVADA STATE VETERANS HOME BOULDER CITY · 708 people · 2025 | 1/1 | LCR |
Water suppliers serving Boulder
| Supplier | Population served |
|---|---|
| NEVADA STATE VETERANS HOME BOULDER CITY | 708 |
Frequently asked questions about Boulder tap water
Is Boulder tap water safe to drink?
EPA testing detected 12 contaminants in the water serving Boulder. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Boulder?
1 public water supplier report drinking-water monitoring for Boulder, Nevada to the EPA. Each is listed above with its population served.
What contaminants are in Boulder's water?
The contaminants EPA monitoring detected in Boulder include TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, Bromodichloromethane. The full list, with the level at the main supplier and the data source, is in the table above.
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.