What was found in ZIP 91046
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 |
|---|---|---|---|
| TTHM | 82.9 µg/L 104% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Copper | 59.75 µg/L 4.6% of the EPA limit 1300 µg/L Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Lithium | 45 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2023 | 1/1 | UCMR-5 |
| Dibromochloromethane | 30 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 27 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 25 µg/L 42% of the EPA limit 60 µg/L Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Chloroform | 24.55 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Bromoform | 14.9 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 10 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 9.9 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 9 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 6.225 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Lead | 5.75 µg/L 38% of the EPA limit 15 µg/L Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2019 | 1/1 | SYR4 |
| Pfhxa | 0.0080 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2023 | 1/1 | UCMR-5 |
| Pfpea | 0.0080 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2023 | 1/1 | UCMR-5 |
| PFBS | 0.0068 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2023 | 1/1 | UCMR-5 |
| PFOA | 0.0051 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2023 | 1/1 | UCMR-5 |
| PFHXS | 0.0049 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2023 | 1/1 | UCMR-5 |
| Pfhpa | 0.0031 µg/L No EPA limit set Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CRESCENTA VALLEY CWD · 35,841 people · 2023 | 1/1 | 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 91046
| Supplier | State | Population served |
|---|---|---|
| CRESCENTA VALLEY CWD | CA | 35,841 |
Frequently asked questions about ZIP 91046 tap water
Is the tap water in ZIP 91046 safe to drink?
EPA testing detected 20 contaminants across the water suppliers serving ZIP 91046. 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 91046?
1 public water supplier report EPA drinking-water monitoring for ZIP 91046. Each is listed above with its population served.
What contaminants are in ZIP 91046's water?
EPA monitoring detected TTHM, Copper, Lithium, Dibromochloromethane, Bromodichloromethane, and others across this ZIP's suppliers. The full list with levels and sources is above.