What was found in ZIP 95482
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 | 2735 µg/L 27% of the EPA limit 10000 µg/L Main supplier: UKIAH, CITY OF · 16,607 people · 2019 | 3/4 | SYR4 |
| Nitrate-Nitrite | 2681 µg/L 27% of the EPA limit 10000 µg/L Main supplier: UKIAH, CITY OF · 16,607 people · 2016 | 2/4 | SYR4 |
| Copper | 288.5 µg/L 22% of the EPA limit 1300 µg/L Highest in the ZIP: BRYAN CO. RWS & SWMD #2 · 6,270 people · 2018 | 1/4 | SYR4 |
| Fluoride | 161 µg/L 4% of the EPA limit 4000 µg/L Main supplier: UKIAH, CITY OF · 16,607 people · 2019 | 3/4 | SYR4 |
| TTHM | 30.81 µg/L 39% of the EPA limit 80 µg/L Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 122.275 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Barium | 110 µg/L 5.5% of the EPA limit 2000 µg/L Main supplier: UKIAH, CITY OF · 16,607 people · 2019 | 2/4 | SYR4 |
| Chloroform | 21.85 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 94.645 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 24.01 µg/L 40% of the EPA limit 60 µg/L Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 62.71 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 11.94 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 36.03 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 11.965 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 30.355 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 8.1775 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 24.055 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Lead | 18.392 µg/L 123% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the ZIP: BRYAN CO. RWS & SWMD #2 · 6,270 people · 2018 | 1/4 | SYR4 |
| Dibromochloromethane | 3.7585 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 8.8385 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 8.368 µg/L No EPA limit set Highest in the ZIP: BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 1/4 | SYR4 |
| Monobromoacetic Acid | 1.8 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 3.6495 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 2/4 | SYR4 |
| Dibromoacetic Acid | 2.105 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2019
Highest in the ZIP: 2.612 µg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 4/4 | SYR4 |
| Bromoform | 2.5995 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2019 | 3/4 | SYR4 |
| Arsenic | 2.495 µg/L 25% of the EPA limit 10 µg/L Highest in the ZIP: MILLVIEW COUNTY WATER DISTRICT · 5,500 people · 2019 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 2.054 pCi/L No EPA limit set Highest in the ZIP: BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 1.095 pCi/L 22% of the EPA limit 5 pCi/L Highest in the ZIP: BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 1/4 | SYR4 |
| 2,4-D | 0.9000 µg/L 1.3% of the EPA limit 70 µg/L Highest in the ZIP: BRYAN CO. RWS & SWMD #2 · 6,270 people · 2019 | 1/4 | SYR4 |
| Toluene | 0.7100 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the ZIP: MILLVIEW COUNTY WATER DISTRICT · 5,500 people · 2018 | 1/4 | SYR4 |
| Asbestos | 0.2000 MFL 2.9% of the EPA limit 7 MFL Main supplier: UKIAH, CITY OF · 16,607 people · 2019 | 1/4 | SYR4 |
| 6:2 Fts | 0.0178 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| Pfba | 0.0092 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| PFOS | 0.0074 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| PFHXS | 0.0073 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| PFOA | 0.0069 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| PFBS | 0.0062 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| Pfpea | 0.0051 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| Pfhxa | 0.0044 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| Pfhpa | 0.0033 µg/L No EPA limit set Main supplier: UKIAH, CITY OF · 16,607 people · 2024 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: UKIAH, CITY OF · 16,607 people · 2026
Highest in the ZIP: 0.00056 mg/L — BRYAN CO. RWS & SWMD #2 · 6,270 people · 2024 | 4/4 | 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 95482
| Supplier | State | Population served |
|---|---|---|
| UKIAH, CITY OF | CA | 16,607 |
| BRYAN CO. RWS & SWMD #2 | OK | 6,270 |
| MILLVIEW COUNTY WATER DISTRICT | CA | 5,500 |
| WILLOW COUNTY WATER DISTRICT | CA | 3,797 |
Frequently asked questions about ZIP 95482 tap water
Is the tap water in ZIP 95482 safe to drink?
EPA testing detected 33 contaminants across the water suppliers serving ZIP 95482. 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 95482?
4 public water suppliers report EPA drinking-water monitoring for ZIP 95482. Each is listed above with its population served.
What contaminants are in ZIP 95482's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, Fluoride, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.