What was found in ZIP 93117
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 | 42760 µg/L 428% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 2/2 | SYR4 |
| Nitrate | 4500 µg/L 45% of the EPA limit 10000 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 2/2 | SYR4 |
| Fluoride | 580 µg/L 14% of the EPA limit 4000 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Copper | 130 µg/L 10% of the EPA limit 1300 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019
Highest in the ZIP: 382.55 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Cyanide | 168 µg/L 84% of the EPA limit 200 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Lead | 117.19 µg/L 781% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the ZIP: KOHALA RANCH WATER CO. · 850 people · 2019 | 1/2 | SYR4 |
| TTHM | 80.8 µg/L 101% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 2/2 | SYR4 |
| Barium | 67 µg/L 3.4% of the EPA limit 2000 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Lithium | 53.5 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2025 | 1/2 | UCMR-5 |
| Chloroform | 38.55 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Chromium | 36.245 µg/L 36% of the EPA limit 100 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 26 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 25 µg/L 42% of the EPA limit 60 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Toluene | 21.46 µg/L 2.1% of the EPA limit 1000 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 20 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 19.7 µg/L 0.2% of the EPA limit 10000 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Selenium | 18.65 µg/L 37% of the EPA limit 50 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Bromoform | 8.27 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019
Highest in the ZIP: 16.875 µg/L — KOHALA RANCH WATER CO. · 850 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 12.45 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 12 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Arsenic | 11 µg/L 110% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 7.89775 µg/L 26% of the EPA limit 30 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 5.875 pCi/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 4.8 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 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 |
| Ethylbenzene | 3.25 µg/L 0.5% of the EPA limit 700 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 2.4 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.9 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.08 pCi/L 22% of the EPA limit 5 pCi/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2018 | 1/2 | SYR4 |
| Tetrachloroethylene | 0.9990 µg/L 20% of the EPA limit 5 µg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Asbestos | 0.3805 MFL 5.4% of the EPA limit 7 MFL Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2024
Highest in the ZIP: 0.0107 mg/L — KOHALA RANCH WATER CO. · 850 people · 2021 | 2/2 | LCR |
| Pfpea | 0.0059 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2025 | 1/2 | UCMR-5 |
| Pfhxa | 0.0045 µg/L No EPA limit set Main supplier: GOLETA WATER DISTRICT · 84,462 people · 2025 | 1/2 | UCMR-5 |
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 93117
| Supplier | State | Population served |
|---|---|---|
| GOLETA WATER DISTRICT | CA | 84,462 |
| KOHALA RANCH WATER CO. | HI | 850 |
Frequently asked questions about ZIP 93117 tap water
Is the tap water in ZIP 93117 safe to drink?
EPA testing detected 34 contaminants across the water suppliers serving ZIP 93117. 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 93117?
2 public water suppliers report EPA drinking-water monitoring for ZIP 93117. Each is listed above with its population served.
What contaminants are in ZIP 93117's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, Cyanide, and others across this ZIP's suppliers. The full list with levels and sources is above.