Water Quality Report · Updated May 12, 2026
GLENDALE-CITY, WATER DEPT.
GLENDALE-CITY, WATER DEPT. delivers tap water graded D (56/100) by TapWaterSafety.org. The utility serves approximately 188,784 residents in GLENDALE, California using surface water (purchased). 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. For questions, the utility can be reached at 818-548-2011.
Is GLENDALE tap water safe to drink?
GLENDALE-CITY, WATER DEPT. delivers tap water that earns a grade of D (56/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including pfas contamination.
The utility serves 188,784 residents in GLENDALE, drawing from surface water (purchased).
Public testing data identifies 10 contaminants in this water above EWG's health-based guidelines, including: Chromium (hexavalent), Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Haloacetic acids (HAA5), Arsenic*, Nitrate and nitrite, Nitrate, Uranium*, Perfluorooctanoic acid (PFOA), Radium, combined (-226 and -228)*. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
Quick actions for GLENDALE residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for GLENDALE-CITY, WATER DEPT..
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.
Contact GLENDALE-CITY, WATER DEPT.
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for GLENDALE
Filters matched to the specific contaminants in this 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.
Score breakdown
This utility's overall score of 56/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
GLENDALE-CITY, WATER DEPT. service area
This water system serves 1 community in Los Angeles County, California. Click any city for its dedicated tap water quality page.
Find the right filter for GLENDALE water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.