What was found in ZIP 89431
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 | 3673 µg/L 37% of the EPA limit 10000 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 2945 µg/L 29% of the EPA limit 10000 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Fluoride | 287.2 µg/L 7.2% of the EPA limit 4000 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Lithium | 100 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| Barium | 98.595 µg/L 4.9% of the EPA limit 2000 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| TTHM | 53 µg/L 66% of the EPA limit 80 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 48 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 41 µg/L 68% of the EPA limit 60 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Cyanide | 39 µg/L 20% of the EPA limit 200 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 24.15 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 17.64 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 17.6 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Chromium | 14.1 µg/L 14% of the EPA limit 100 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Arsenic | 12 µg/L 120% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Copper | 10 µg/L 0.8% of the EPA limit 1300 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 9.0125 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 8.958 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 7.45 pCi/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2015 | 1/1 | SYR4 |
| Combined Uranium | 6.68 µg/L 22% of the EPA limit 30 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 5.89 µg/L 295% of the EPA limit, at the 95th percentile of samples — 2 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 5.648 µg/L 94% of the EPA limit 6 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Bromoform | 5.32 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.06 pCi/L 34% of the EPA limit 15 pCi/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2018 | 1/1 | SYR4 |
| Monochloroacetic Acid | 4.58 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 3.514 pCi/L 70% of the EPA limit 5 pCi/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 3.4 µg/L 68% of the EPA limit 5 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.195 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 1.318 µg/L 26% of the EPA limit 5 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.9400 µg/L 16% of the EPA limit 6 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| 1,1-Dichloroethylene | 0.6250 µg/L 8.9% of the EPA limit 7 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Dalapon | 0.4200 µg/L 0.2% of the EPA limit 200 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Mercury | 0.2527 µg/L 13% of the EPA limit 2 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| 2,4-D | 0.2225 µg/L 0.3% of the EPA limit 70 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Benzo(A)Pyrene | 0.1100 µg/L 55% of the EPA limit 0.2000 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| Hexachlorocyclopentadiene | 0.0690 µg/L 0.1% of the EPA limit 50 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0200 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0190 µg/L 9.5% of the EPA limit 0.2000 µg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2019 | 1/1 | SYR4 |
| PFHXS | 0.0150 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0130 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0120 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0068 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0057 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0055 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| Pfhpa | 0.0039 µg/L No EPA limit set Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: TRUCKEE MEADOWS WATER AUTHORITY · 442,000 people · 2025 | 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 89431
| Supplier | State | Population served |
|---|---|---|
| TRUCKEE MEADOWS WATER AUTHORITY | NV | 442,000 |
Frequently asked questions about ZIP 89431 tap water
Is the tap water in ZIP 89431 safe to drink?
EPA testing detected 45 contaminants across the water suppliers serving ZIP 89431. 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 89431?
1 public water supplier report EPA drinking-water monitoring for ZIP 89431. Each is listed above with its population served.
What contaminants are in ZIP 89431's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Lithium, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.