What was found in ZIP 94107
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 | 11715 µg/L 117% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 10900 µg/L 109% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019 | 2/2 | SYR4 |
| Fluoride | 674.45 µg/L 17% of the EPA limit 4000 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019 | 1/2 | SYR4 |
| Copper | 269 µg/L 21% of the EPA limit 1300 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019
Highest in the ZIP: 382.55 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Lead | 6.73 µg/L 45% of the EPA limit 15 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019
Highest in the ZIP: 117.19 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Chromium | 20.69 µg/L 21% of the EPA limit 100 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019 | 2/2 | SYR4 |
| TTHM | 17.82 µg/L 22% of the EPA limit 80 µg/L Highest in the ZIP: KOHALA RANCH WATER CO. · 850 people · 2019 | 1/2 | SYR4 |
| Bromoform | 16.875 µg/L No EPA limit set Highest in the ZIP: KOHALA RANCH WATER CO. · 850 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 |
| Gross Alpha, Excl. Radon And U | 4.4 pCi/L 29% of the EPA limit 15 pCi/L Highest in the ZIP: KOHALA RANCH WATER CO. · 850 people · 2019 | 1/2 | SYR4 |
| Arsenic | 2.5835 µg/L 26% of the EPA limit 10 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019 | 1/2 | SYR4 |
| Tetrachloroethylene | 2.28 µg/L 46% of the EPA limit 5 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019 | 1/2 | SYR4 |
| Carbon Tetrachloride | 0.9750 µg/L 20% of the EPA limit 5 µg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SFPUC CITY DISTRIBUTION DIVISION · 848,019 people · 2024
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 94107
| Supplier | State | Population served |
|---|---|---|
| SFPUC CITY DISTRIBUTION DIVISION | CA | 848,019 |
| KOHALA RANCH WATER CO. | HI | 850 |
Frequently asked questions about ZIP 94107 tap water
Is the tap water in ZIP 94107 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 94107. 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 94107?
2 public water suppliers report EPA drinking-water monitoring for ZIP 94107. Each is listed above with its population served.
What contaminants are in ZIP 94107's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.