What was found in ZIP 89074
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 | 652.75 µg/L 6.5% of the EPA limit 10000 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019
Highest in the ZIP: 1000 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 642.25 µg/L 6.4% of the EPA limit 10000 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019
Highest in the ZIP: 1000 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Fluoride | 770 µg/L 19% of the EPA limit 4000 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Copper | 29.71 µg/L 2.3% of the EPA limit 1300 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019
Highest in the ZIP: 382.55 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Barium | 120 µg/L 6% of the EPA limit 2000 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Lead | 117.19 µg/L 781% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the ZIP: KOHALA RANCH WATER CO. · 850 people · 2019 | 1/2 | SYR4 |
| TTHM | 77.65 µg/L 97% of the EPA limit 80 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 2/2 | SYR4 |
| Lithium | 57.8 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2025 | 1/2 | UCMR-5 |
| Chloroform | 35.79 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 31 µg/L 52% of the EPA limit 60 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 24 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 17 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Bromoform | 3.1 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019
Highest in the ZIP: 16.875 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 16.08 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 8.485 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 5.74 pCi/L No EPA limit set Highest in the ZIP: KOHALA RANCH WATER CO. · 850 people · 2019 | 1/2 | SYR4 |
| Glyphosate | 5.1 µg/L 0.7% of the EPA limit 700 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 4.47 µg/L 15% of the EPA limit 30 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.045 pCi/L 27% of the EPA limit 15 pCi/L Main supplier: HENDERSON CITY OF · 336,534 people · 2018
Highest in the ZIP: 4.4 pCi/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 4 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Selenium | 2.835 µg/L 5.7% of the EPA limit 50 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 2.75 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 2.63 µg/L No EPA limit set Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Chromium | 2.1495 µg/L 2.1% of the EPA limit 100 µg/L Highest in the ZIP: KOHALA RANCH WATER CO. · 850 people · 2019 | 1/2 | SYR4 |
| Arsenic | 1.84 µg/L 18% of the EPA limit 10 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.5 µg/L 25% of the EPA limit 6 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.7200 pCi/L 14% of the EPA limit 5 pCi/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Diquat | 0.4800 µg/L 2.4% of the EPA limit 20 µg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0038 mg/L 25% of the EPA limit 0.0150 mg/L Main supplier: HENDERSON CITY OF · 336,534 people · 2025
Highest in the ZIP: 0.0107 mg/L — KOHALA RANCH WATER CO. · 850 people · 2021 | 2/2 | 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 89074
| Supplier | State | Population served |
|---|---|---|
| HENDERSON CITY OF | NV | 336,534 |
| KOHALA RANCH WATER CO. | HI | 850 |
Frequently asked questions about ZIP 89074 tap water
Is the tap water in ZIP 89074 safe to drink?
EPA testing detected 29 contaminants across the water suppliers serving ZIP 89074. 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 89074?
2 public water suppliers report EPA drinking-water monitoring for ZIP 89074. Each is listed above with its population served.
What contaminants are in ZIP 89074'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.