What was found in ZIP 93560
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 | 960000 µg/L 9600% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Nitrate | 2938 µg/L 29% of the EPA limit 10000 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Fluoride | 655 µg/L 16% of the EPA limit 4000 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Copper | 171.2 µg/L 13% of the EPA limit 1300 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| TTHM | 85.9 µg/L 107% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 2/2 | SYR4 |
| Lithium | 46.9 µg/L No EPA limit set Highest in the ZIP: ROSAMOND CSD · 17,711 people · 2024 | 1/2 | UCMR-5 |
| Barium | 44.7 µg/L 2.2% of the EPA limit 2000 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 40.026 µg/L No EPA limit set Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 2/2 | SYR4 |
| Bromoform | 31.172 µg/L No EPA limit set Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 28 µg/L 47% of the EPA limit 60 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 20.045 µg/L No EPA limit set Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 15.95 µg/L No EPA limit set Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 2/2 | SYR4 |
| Chloroform | 9.77 µg/L No EPA limit set Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019
Highest in the ZIP: 13.6 µg/L — ROSAMOND CSD · 17,711 people · 2019 | 2/2 | SYR4 |
| Selenium | 9.59 µg/L 19% of the EPA limit 50 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 9.4 µg/L No EPA limit set Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 8.76 µg/L No EPA limit set Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 2/2 | SYR4 |
| Cyanide | 7.4 µg/L 3.7% of the EPA limit 200 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Arsenic | 5.75 µg/L 57% of the EPA limit 10 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Chromium | 3.61505 µg/L 3.6% of the EPA limit 100 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 2.2 µg/L No EPA limit set Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Styrene | 0.6300 µg/L 0.6% of the EPA limit 100 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Ethylbenzene | 0.6000 µg/L 0.1% of the EPA limit 700 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Lead | 0.4588 µg/L 3.1% of the EPA limit 15 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Nitrite | 0.1300 µg/L 0% of the EPA limit 1000 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Antimony, Total | 0.0960 µg/L 1.6% of the EPA limit 6 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Cadmium | 0.0040 µg/L 0.1% of the EPA limit 5 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Beryllium, Total | 0.0030 µg/L 0.1% of the EPA limit 4 µg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: TEJON CASTAC WD - I5 & LAVAL RD · 38,125 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 93560
| Supplier | State | Population served |
|---|---|---|
| TEJON CASTAC WD - I5 & LAVAL RD | CA | 38,125 |
| ROSAMOND CSD | CA | 17,711 |
Frequently asked questions about ZIP 93560 tap water
Is the tap water in ZIP 93560 safe to drink?
EPA testing detected 28 contaminants across the water suppliers serving ZIP 93560. 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 93560?
2 public water suppliers report EPA drinking-water monitoring for ZIP 93560. Each is listed above with its population served.
What contaminants are in ZIP 93560's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.