What was found in ZIP 93550
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 | 925900 µg/L 9259% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019 | 2/2 | SYR4 |
| Nitrate | 4113.2 µg/L 41% of the EPA limit 10000 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019 | 2/2 | SYR4 |
| Fluoride | 378.6 µg/L 9.5% of the EPA limit 4000 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 409 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2019 | 2/2 | SYR4 |
| Barium | 120 µg/L 6% of the EPA limit 2000 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019 | 1/2 | SYR4 |
| TTHM | 76 µg/L 95% of the EPA limit 80 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 79.55 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2017 | 2/2 | SYR4 |
| Dibromochloromethane | 29 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 32.975 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2017 | 2/2 | SYR4 |
| Bromoform | 22 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 24.115 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2017 | 2/2 | SYR4 |
| Bromodichloromethane | 19 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 22.94 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2017 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 12 µg/L 20% of the EPA limit 60 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 22.35 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2017 | 2/2 | SYR4 |
| Dibromoacetic Acid | 7.1 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 15.76 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2017 | 2/2 | SYR4 |
| Chromium | 10 µg/L 10% of the EPA limit 100 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 13.88 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 13 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019 | 2/2 | SYR4 |
| Chloroform | 12 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 12.38 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2017 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 9.46 pCi/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 3.4 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019
Highest in the ZIP: 7.3915 µg/L — LOS ANGELES CWWD 40, REG. 38-LAKE LA · 12,568 people · 2017 | 2/2 | SYR4 |
| Arsenic | 6.26 µg/L 63% of the EPA limit 10 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 6.17725 µg/L 21% of the EPA limit 30 µg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2016 | 2/2 | SYR4 |
| Monochloroacetic Acid | 2.7 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.9 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2019 | 2/2 | SYR4 |
| Pfhxa | 0.0063 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2025 | 1/2 | UCMR-5 |
| Pfpea | 0.0046 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2025 | 1/2 | UCMR-5 |
| PFBS | 0.0045 µg/L No EPA limit set Main supplier: PALMDALE WATER DIST. · 126,804 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: PALMDALE WATER DIST. · 126,804 people · 2024 | 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 93550
| Supplier | State | Population served |
|---|---|---|
| PALMDALE WATER DIST. | CA | 126,804 |
| LOS ANGELES CWWD 40, REG. 38-LAKE LA | CA | 12,568 |
Frequently asked questions about ZIP 93550 tap water
Is the tap water in ZIP 93550 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 93550. 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 93550?
2 public water suppliers report EPA drinking-water monitoring for ZIP 93550. Each is listed above with its population served.
What contaminants are in ZIP 93550's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.