What was found in ZIP 77502
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 |
|---|---|---|---|
| Copper | 585.1 µg/L 45% of the EPA limit 1300 µg/L Main supplier: CITY OF PASADENA · 152,000 people · 2018 | 1/1 | SYR4 |
| TTHM | 49.225 µg/L 62% of the EPA limit 80 µg/L Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 41.5 µg/L 69% of the EPA limit 60 µg/L Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Chloroform | 35.12 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 30.525 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Bromoform | 20.54 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Lithium | 18.7 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2025 | 1/1 | UCMR-5 |
| Monochloroacetic Acid | 15.125 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 12.82 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 10.1 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Lead | 8.14 µg/L 54% of the EPA limit 15 µg/L Main supplier: CITY OF PASADENA · 152,000 people · 2018 | 1/1 | SYR4 |
| Dibromochloromethane | 8.03 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 6.145 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.31 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2019 | 1/1 | SYR4 |
| Pfba | 0.0127 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0084 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0070 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2025 | 1/1 | UCMR-5 |
| PFOS | 0.0049 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0043 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0037 mg/L 25% of the EPA limit 0.0150 mg/L Main supplier: CITY OF PASADENA · 152,000 people · 2024 | 1/1 | LCR |
| PFBS | 0.0035 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2025 | 1/1 | UCMR-5 |
| Pfhpa | 0.0033 µg/L No EPA limit set Main supplier: CITY OF PASADENA · 152,000 people · 2025 | 1/1 | 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 77502
| Supplier | State | Population served |
|---|---|---|
| CITY OF PASADENA | TX | 152,000 |
Frequently asked questions about ZIP 77502 tap water
Is the tap water in ZIP 77502 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 77502. 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 77502?
1 public water supplier report EPA drinking-water monitoring for ZIP 77502. Each is listed above with its population served.
What contaminants are in ZIP 77502's water?
EPA monitoring detected Copper, TTHM, Total Haloacetic Acids (HAA5), Chloroform, Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.