What was found in Glendale's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 10000 µg/L 100% of the EPA limit 10000 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Nitrate | 9500 µg/L 95% of the EPA limit 10000 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Cyanide | 640 µg/L 320% of the EPA limit, at the 95th percentile of samples — 200 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Fluoride | 502 µg/L 13% of the EPA limit 4000 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 220 µg/L 4400% of the EPA limit, at the 95th percentile of samples — 5 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Copper | 200 µg/L 15% of the EPA limit 1300 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 190 µg/L 3800% of the EPA limit, at the 95th percentile of samples — 5 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Barium | 170 µg/L 8.5% of the EPA limit 2000 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Chromium | 100 µg/L 100% of the EPA limit 100 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Lead | 80.5 µg/L 537% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Lithium | 60.4 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| TTHM | 56.15 µg/L 70% of the EPA limit 80 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| 1,1-Dichloroethylene | 40 µg/L 571% of the EPA limit, at the 95th percentile of samples — 7 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 21 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 19.37 µg/L 65% of the EPA limit 30 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Bromoform | 18 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Chloroform | 18 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| cis-1,2-Dichloroethylene | 16 µg/L 23% of the EPA limit 70 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 15 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 15 µg/L 25% of the EPA limit 60 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 7.71 pCi/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 7.5 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Carbon Tetrachloride | 7.23 µg/L 145% of the EPA limit, at the 95th percentile of samples — 5 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Selenium | 6.7 µg/L 13% of the EPA limit 50 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 6.2 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 6 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 5.8 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| 1,1,2-Trichloroethane | 5.71 µg/L 114% of the EPA limit, at the 95th percentile of samples — 5 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Arsenic | 5.4 µg/L 54% of the EPA limit 10 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| trans-1,2-Dichloroethylene | 5 µg/L 5% of the EPA limit 100 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Dichloromethane | 2.7 µg/L 54% of the EPA limit 5 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 1.7 µg/L 0% of the EPA limit 10000 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| 1,1,1-Trichloroethane | 1.6 µg/L 0.8% of the EPA limit 200 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.5 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| 1,2-Dichloroethane | 1.4 µg/L 28% of the EPA limit 5 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Nitrite | 0.5100 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| Pentachlorophenol | 0.5065 µg/L 51% of the EPA limit 1 µg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2019 | 1/1 | SYR4 |
| PFBS | 0.0169 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| PFOS | 0.0158 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0148 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0122 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0116 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0110 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0055 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| Pfhpa | 0.0053 µg/L No EPA limit set Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: GLENDALE-CITY, WATER DEPT. · 188,784 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Glendale
| Supplier | Population served |
|---|---|
| GLENDALE-CITY, WATER DEPT. | 188,784 |
Frequently asked questions about Glendale tap water
Is Glendale tap water safe to drink?
EPA testing detected 46 contaminants in the water serving Glendale. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Glendale?
1 public water supplier report drinking-water monitoring for Glendale, California to the EPA. Each is listed above with its population served.
What contaminants are in Glendale's water?
The contaminants EPA monitoring detected in Glendale include Nitrate-Nitrite, Nitrate, Cyanide, Fluoride, Tetrachloroethylene. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.