What was found in ZIP 94089
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 | 6300 µg/L 63% of the EPA limit 10000 µg/L Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Fluoride | 212.99999999999994 µg/L 5.3% of the EPA limit 4000 µg/L Main supplier: CITY OF SUNNYVALE · 157,566 people · 2018 | 1/1 | SYR4 |
| Barium | 130 µg/L 6.5% of the EPA limit 2000 µg/L Main supplier: CITY OF SUNNYVALE · 157,566 people · 2018 | 1/1 | SYR4 |
| TTHM | 60.37 µg/L 75% of the EPA limit 80 µg/L Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Chloroform | 46.925 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 42.44999999999999 µg/L 71% of the EPA limit 60 µg/L Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 26.335 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 22 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Bromoform | 20.259999999999998 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 19 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 18.479999999999997 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 12 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 4.879999999999999 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.075 µg/L No EPA limit set Main supplier: CITY OF SUNNYVALE · 157,566 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF SUNNYVALE · 157,566 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 94089
| Supplier | State | Population served |
|---|---|---|
| CITY OF SUNNYVALE | CA | 157,566 |
Frequently asked questions about ZIP 94089 tap water
Is the tap water in ZIP 94089 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 94089. 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 94089?
1 public water supplier report EPA drinking-water monitoring for ZIP 94089. Each is listed above with its population served.
What contaminants are in ZIP 94089's water?
EPA monitoring detected Nitrate, Fluoride, Barium, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.