What was found in ZIP 89403
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 4015 µg/L 40% of the EPA limit 10000 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 2525 µg/L 25% of the EPA limit 10000 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Fluoride | 664.5 µg/L 17% of the EPA limit 4000 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Copper | 185 µg/L 14% of the EPA limit 1300 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Barium | 74.6 µg/L 3.7% of the EPA limit 2000 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Lithium | 64.1 µg/L No EPA limit set Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2024 | 1/1 | UCMR-5 |
| TTHM | 24.825 µg/L 31% of the EPA limit 80 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Lead | 22.42 µg/L 149% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 19.58 µg/L No EPA limit set Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 13 pCi/L No EPA limit set Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Arsenic | 8.3 µg/L 83% of the EPA limit 10 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 7.10535 µg/L 24% of the EPA limit 30 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Bromoform | 6.87 µg/L No EPA limit set Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 6.39 µg/L No EPA limit set Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 4.33 µg/L No EPA limit set Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.1 µg/L No EPA limit set Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.1 µg/L 5.2% of the EPA limit 60 µg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.66 pCi/L 18% of the EPA limit 15 pCi/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1 µg/L No EPA limit set Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.4000 pCi/L 8% of the EPA limit 5 pCi/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2019 | 1/1 | SYR4 |
| Lead | 0.00080 mg/L 5.3% of the EPA limit 0.0150 mg/L Main supplier: DAYTON VALLEY WATER SYSTEM · 16,000 people · 2023 | 1/1 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 89403
| Supplier | State | Population served |
|---|---|---|
| DAYTON VALLEY WATER SYSTEM | NV | 16,000 |
Frequently asked questions about ZIP 89403 tap water
Is the tap water in ZIP 89403 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 89403. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 89403?
1 public water supplier report EPA drinking-water monitoring for ZIP 89403. Each is listed above with its population served.
What contaminants are in ZIP 89403's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.