What was found in ZIP 94037
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 | 9944 µg/L 99% of the EPA limit 10000 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 9375 µg/L 94% of the EPA limit 10000 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1700 µg/L 43% of the EPA limit 4000 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Toluene | 120.035 µg/L 12% of the EPA limit 1000 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| TTHM | 51.3 µg/L 64% of the EPA limit 80 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Bromoform | 36.9 µg/L No EPA limit set Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Chromium | 22.95 µg/L 23% of the EPA limit 100 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 12.9 µg/L No EPA limit set Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Selenium | 8.345 µg/L 17% of the EPA limit 50 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 7.88 µg/L 13% of the EPA limit 60 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Arsenic | 7.7 µg/L 77% of the EPA limit 10 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 7.49 µg/L No EPA limit set Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Chloroform | 5.28 µg/L No EPA limit set Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| cis-1,2-Dichloroethylene | 5 µg/L 7.1% of the EPA limit 70 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 4.1 µg/L No EPA limit set Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 3.575 µg/L No EPA limit set Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 3.095 µg/L 62% of the EPA limit 5 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.75 µg/L No EPA limit set Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| trans-1,2-Dichloroethylene | 1.74 µg/L 1.7% of the EPA limit 100 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Carbon Tetrachloride | 1.1 µg/L 22% of the EPA limit 5 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| 1,2-Dichloropropane | 0.5880 µg/L 12% of the EPA limit 5 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 0.5200 µg/L 0% of the EPA limit 10000 µg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MONTARA WATER AND SANITARY DISTRICT · 6,078 people · 2023 | 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 94037
| Supplier | State | Population served |
|---|---|---|
| MONTARA WATER AND SANITARY DISTRICT | CA | 6,078 |
Frequently asked questions about ZIP 94037 tap water
Is the tap water in ZIP 94037 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 94037. 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 94037?
1 public water supplier report EPA drinking-water monitoring for ZIP 94037. Each is listed above with its population served.
What contaminants are in ZIP 94037's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Toluene, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.