What was found in ZIP 94591
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-Nitrite | 985650 µg/L 9857% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Nitrate | 1532.28 µg/L 15% of the EPA limit 10000 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Fluoride | 866.5 µg/L 22% of the EPA limit 4000 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Chromium | 92.115 µg/L 92% of the EPA limit 100 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| TTHM | 71.501 µg/L 89% of the EPA limit 80 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Chloroform | 55.604 µg/L No EPA limit set Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Copper | 55 µg/L 4.2% of the EPA limit 1300 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Lead | 47.8 µg/L 319% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 22.09 µg/L 37% of the EPA limit 60 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 12.1765 µg/L No EPA limit set Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 11.855 µg/L No EPA limit set Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 8.705 µg/L No EPA limit set Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 4.9995 µg/L No EPA limit set Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Arsenic | 4.57 µg/L 46% of the EPA limit 10 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 3.8 µg/L 63% of the EPA limit 6 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.99 µg/L No EPA limit set Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 2.67008 µg/L 8.9% of the EPA limit 30 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Bromate | 2.66 µg/L 27% of the EPA limit 10 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Cadmium | 2.245 µg/L 45% of the EPA limit 5 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.45 µg/L No EPA limit set Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 0.9700 µg/L 19% of the EPA limit 5 µg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF VALLEJO · 121,420 people · 2024 | 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 94591
| Supplier | State | Population served |
|---|---|---|
| CITY OF VALLEJO | CA | 121,420 |
Frequently asked questions about ZIP 94591 tap water
Is the tap water in ZIP 94591 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 94591. 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 94591?
1 public water supplier report EPA drinking-water monitoring for ZIP 94591. Each is listed above with its population served.
What contaminants are in ZIP 94591's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Chromium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.