What was found in ZIP 91011
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 1000000 µg/L 10000% of the EPA limit, in the worst sample — 10000 µg/L | 2/3 | SYR4 |
| Nitrate | 15820 µg/L 158% of the EPA limit, in the worst sample — 10000 µg/L | 2/3 | SYR4 |
| Fluoride | 430 µg/L 11% of the EPA limit 4000 µg/L | 2/3 | SYR4 |
| Barium | 180 µg/L 9% of the EPA limit 2000 µg/L | 2/3 | SYR4 |
| TTHM | 100 µg/L 125% of the EPA limit, in the worst sample — 80 µg/L | 3/3 | SYR4 |
| Copper | 73 µg/L 5.6% of the EPA limit 1300 µg/L | 1/3 | SYR4 |
| Lithium | 65.7 µg/L No EPA limit set | 3/3 | UCMR-5 |
| Chloroform | 47.5 µg/L No EPA limit set | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 37 µg/L 62% of the EPA limit 60 µg/L | 3/3 | SYR4 |
| Dibromochloromethane | 36 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromodichloromethane | 35 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromoform | 21 µg/L No EPA limit set | 3/3 | SYR4 |
| Dichloroacetic Acid | 20 µg/L No EPA limit set | 3/3 | SYR4 |
| Trichloroacetic Acid | 15 µg/L No EPA limit set | 3/3 | SYR4 |
| Combined Uranium | 13.261 µg/L 44% of the EPA limit 30 µg/L | 2/3 | SYR4 |
| Dibromoacetic Acid | 12 µg/L No EPA limit set | 3/3 | SYR4 |
| Lead | 7.4 µg/L 49% of the EPA limit 15 µg/L | 2/3 | SYR4 |
| Monobromoacetic Acid | 6.6 µg/L No EPA limit set | 3/3 | SYR4 |
| Arsenic | 5.8 µg/L 58% of the EPA limit 10 µg/L | 1/3 | SYR4 |
| Tetrachloroethylene | 5.6 µg/L 112% of the EPA limit, in the worst sample — 5 µg/L | 2/3 | SYR4 |
| Monochloroacetic Acid | 3.1 µg/L No EPA limit set | 2/3 | SYR4 |
| Trichloroethylene | 2.4 µg/L 48% of the EPA limit 5 µg/L | 2/3 | SYR4 |
| Mercury | 1.4 µg/L 70% of the EPA limit 2 µg/L | 1/3 | SYR4 |
| Pfhxa | 0.0080 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Pfpea | 0.0080 µg/L No EPA limit set | 1/3 | UCMR-5 |
| PFBS | 0.0068 µg/L No EPA limit set | 1/3 | UCMR-5 |
| PFOA | 0.0051 µg/L No EPA limit set | 1/3 | UCMR-5 |
| PFHXS | 0.0049 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Pfhpa | 0.0031 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 3/3 | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 91011
| Supplier | State | Population served |
|---|---|---|
| CRESCENTA VALLEY CWD | CA | 35,841 |
| VALLEY WATER CO. | CA | 10,070 |
| LA CANADA IRRIGATION DIST. | CA | 9,300 |
Frequently asked questions about ZIP 91011 tap water
Is the tap water in ZIP 91011 safe to drink?
EPA testing detected 30 contaminants across the water suppliers serving ZIP 91011. 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 91011?
3 public water suppliers report EPA drinking-water monitoring for ZIP 91011. Each is listed above with its population served.
What contaminants are in ZIP 91011'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.