What was found in ZIP 89423
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 | 4690 µg/L 47% of the EPA limit 10000 µg/L Highest in the ZIP: INDIAN HILLS GID · 5,962 people · 2019 | 2/3 | SYR4 |
| Nitrate-Nitrite | 3725 µg/L 37% of the EPA limit 10000 µg/L Highest in the ZIP: INDIAN HILLS GID · 5,962 people · 2019 | 2/3 | SYR4 |
| Fluoride | 642.5 µg/L 16% of the EPA limit 4000 µg/L Highest in the ZIP: INDIAN HILLS GID · 5,962 people · 2019 | 2/3 | SYR4 |
| Copper | 2 µg/L 0.2% of the EPA limit 1300 µg/L Main supplier: DOUGLAS COUNTY CARSON VALLEY SYSTEM · 6,488 people · 2012
Highest in the ZIP: 166 µg/L — INDIAN HILLS GID · 5,962 people · 2019 | 3/3 | SYR4 |
| Barium | 128.5 µg/L 6.4% of the EPA limit 2000 µg/L Highest in the ZIP: TOWN OF MINDEN · 3,500 people · 2019 | 2/3 | SYR4 |
| Lithium | 21.8 µg/L No EPA limit set Main supplier: DOUGLAS COUNTY CARSON VALLEY SYSTEM · 6,488 people · 2023
Highest in the ZIP: 74.4 µg/L — INDIAN HILLS GID · 5,962 people · 2025 | 3/3 | UCMR-5 |
| Combined Uranium | 11.7 µg/L 39% of the EPA limit 30 µg/L Highest in the ZIP: TOWN OF MINDEN · 3,500 people · 2018 | 2/3 | SYR4 |
| Arsenic | 10 µg/L 100% of the EPA limit 10 µg/L Highest in the ZIP: TOWN OF MINDEN · 3,500 people · 2019 | 2/3 | SYR4 |
| Gross Beta Particle Activity | 9.7 pCi/L No EPA limit set Highest in the ZIP: INDIAN HILLS GID · 5,962 people · 2012 | 2/3 | SYR4 |
| Chromium | 4 µg/L 4% of the EPA limit 100 µg/L Highest in the ZIP: TOWN OF MINDEN · 3,500 people · 2019 | 1/3 | SYR4 |
| Lead | 2.9 µg/L 19% of the EPA limit 15 µg/L Highest in the ZIP: INDIAN HILLS GID · 5,962 people · 2019 | 2/3 | SYR4 |
| TTHM | 2.82 µg/L 3.5% of the EPA limit 80 µg/L Main supplier: DOUGLAS COUNTY CARSON VALLEY SYSTEM · 6,488 people · 2019 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 2.245 pCi/L 45% of the EPA limit 5 pCi/L Highest in the ZIP: TOWN OF MINDEN · 3,500 people · 2018 | 1/3 | SYR4 |
| Bromoform | 0.9625 µg/L No EPA limit set Main supplier: DOUGLAS COUNTY CARSON VALLEY SYSTEM · 6,488 people · 2019
Highest in the ZIP: 1.1 µg/L — INDIAN HILLS GID · 5,962 people · 2019 | 2/3 | SYR4 |
| Dibromochloromethane | 1.1 µg/L No EPA limit set Main supplier: DOUGLAS COUNTY CARSON VALLEY SYSTEM · 6,488 people · 2019 | 2/3 | SYR4 |
| Bromodichloromethane | 0.6540 µg/L No EPA limit set Main supplier: DOUGLAS COUNTY CARSON VALLEY SYSTEM · 6,488 people · 2019 | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.5000 pCi/L 3.3% of the EPA limit 15 pCi/L Highest in the ZIP: INDIAN HILLS GID · 5,962 people · 2012 | 1/3 | SYR4 |
| Chloroform | 0.2200 µg/L No EPA limit set Main supplier: DOUGLAS COUNTY CARSON VALLEY SYSTEM · 6,488 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0019 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: DOUGLAS COUNTY CARSON VALLEY SYSTEM · 6,488 people · 2025
Highest in the ZIP: 0.0060 mg/L — TOWN OF MINDEN · 3,500 people · 2025 | 3/3 | LCR |
| Pfpea | 0.0050 µg/L No EPA limit set Highest in the ZIP: INDIAN HILLS GID · 5,962 people · 2025 | 1/3 | UCMR-5 |
| Pfhxa | 0.0043 µg/L No EPA limit set Highest in the ZIP: INDIAN HILLS GID · 5,962 people · 2025 | 1/3 | UCMR-5 |
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 89423
| Supplier | State | Population served |
|---|---|---|
| DOUGLAS COUNTY CARSON VALLEY SYSTEM | NV | 6,488 |
| INDIAN HILLS GID | NV | 5,962 |
| TOWN OF MINDEN | NV | 3,500 |
Frequently asked questions about ZIP 89423 tap water
Is the tap water in ZIP 89423 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 89423. 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 89423?
3 public water suppliers report EPA drinking-water monitoring for ZIP 89423. Each is listed above with its population served.
What contaminants are in ZIP 89423'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.