Tap Water Quality Report
Tap water quality in GLENDALE, California
Tap water in GLENDALE, California receives a grade of F (56/100) from TapWaterSafety.org. It's served by GLENDALE-CITY, WATER DEPT.. The most significant water quality concerns are: PFAS contamination; Chromium (hexavalent) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Arsenic detected. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in GLENDALE's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving GLENDALE.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 4.93 ppb, 247x above the EWG health guideline of 0.02 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 12.3 ppb, 205x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 23.3 ppb, 155x above the EWG health guideline of 0.15 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.16 ppb.
Recommended filters for GLENDALE
Filters matched to the specific contaminants in GLENDALE's water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Reverse Osmosis
$249-$750Arsenic is most effectively removed by reverse osmosis. Some specialized adsorptive filters also work.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in GLENDALE's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Chromium (hexavalent) Heavy metal |
4.93 ppb | 0.02 | — | — | — | — | — | 247× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
12.3 ppb | 0.06 | — | — | — | — | — | 205× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
23.3 ppb | 0.15 | 80.0 | 100 | — | — | — | 155× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
4.57 ppb | 0.1 | 60.0 | 60 | — | — | — | 46× over |
| Arsenic* Heavy metal |
0.16 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 40× over |
| Nitrate and nitrite Inorganic |
5.14 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 37× over |
| Nitrate Inorganic |
4.26 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 30× over |
| Uranium* Radiological |
1.33 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 3.1× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.126 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 1.4× over |
| Radium, combined (-226 and -228)* Radiological |
0.07 pCi/L | 0.05 | 5.0 | — | — | — | — | 1.4× over |
| Chlorate Disinfection byproduct |
124.6 ppb | 210.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0996 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Vanadium Other |
5.06 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
5.36 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
27.4 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
1.24 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
1.18 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
0.481 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Strontium Radiological |
0.938 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chloromethane Other |
0.000906 ppb | 2.69 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.000757 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.0542 ppb | — | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
1.86 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.287 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| n-Nitrosomorpholine (NMOR) Other |
0.00358 ppb | — | — | — | — | — | — | Below guideline |
| tert-Butyl alcohol Other |
0.269 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from GLENDALE-CITY, WATER DEPT..