Water Quality Report · Updated May 12, 2026
CITY OF ALHAMBRA
CITY OF ALHAMBRA delivers tap water graded D (62/100) by TapWaterSafety.org. The utility serves approximately 79,776 residents in ALHAMBRA, California using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA5) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Chromium (hexavalent) significantly above health guideline. For questions, the utility can be reached at 626-570-3278.
Is ALHAMBRA tap water safe to drink?
CITY OF ALHAMBRA delivers tap water that earns a grade of D (62/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including haloacetic acids (haa5) significantly above health guideline.
The utility serves 79,776 residents in ALHAMBRA, drawing from surface water (purchased).
Public testing data identifies 15 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA5), Haloacetic acids (HAA9), Chromium (hexavalent), Total trihalomethanes (TTHMs), Bromodichloromethane, Dibromochloromethane, Dibromoacetic acid, Nitrate and nitrite, Dichloroacetic acid, Trichloroacetic acid, Chloroform, Nitrate, Uranium, Bromoform, Tetrachloroethylene (perchloroethylene). 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 ALHAMBRA residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for CITY OF ALHAMBRA.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 36.2 ppb, 362x above the EWG health guideline of 0.1 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 11.7 ppb, 195x above the EWG health guideline of 0.06 ppb.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 3.8 ppb, 190x above the EWG health guideline of 0.02 ppb.
Contact CITY OF ALHAMBRA
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 ALHAMBRA
Filters matched to the specific contaminants in this water supply.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
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 62/100 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 |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA5) Disinfection byproduct |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
11.7 ppb | 0.06 | — | — | — | — | — | 195× over |
| Chromium (hexavalent) Heavy metal |
3.8 ppb | 0.02 | — | — | — | — | — | 190× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
27.5 ppb | 0.15 | 80.0 | 100 | — | — | — | 184× over |
| Bromodichloromethane Disinfection byproduct |
7.99 ppb | 0.06 | — | — | — | — | — | 133× over |
| Dibromochloromethane Disinfection byproduct |
8.99 ppb | 0.1 | — | — | — | — | — | 90× over |
| Dibromoacetic acid Disinfection byproduct |
1.82 ppb | 0.03 | — | — | — | — | — | 61× over |
| Nitrate and nitrite Inorganic |
5.25 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 38× over |
| Dichloroacetic acid Disinfection byproduct |
3.59 ppb | 0.2 | — | — | — | — | — | 18× over |
| Trichloroacetic acid Disinfection byproduct |
1.65 ppb | 0.1 | — | — | — | — | — | 17× over |
| Chloroform Disinfection byproduct |
6.27 ppb | 0.4 | — | — | — | — | — | 16× over |
| Nitrate Inorganic |
1.61 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 12× over |
| Uranium Radiological |
4.18 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 9.7× over |
| Bromoform Disinfection byproduct |
4.28 ppb | 0.5 | — | — | — | — | — | 8.6× over |
| Tetrachloroethylene (perchloroethylene) Volatile organic compound |
0.0657 ppb | 0.06 | 5.0 | — | — | — | — | 1.1× over |
| Chlorate Disinfection byproduct |
137.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Perchlorate Disinfection byproduct |
0.51 ppb | 1.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
4.7 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
5.42 ppb | 40.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0223 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| 1,2,3-Trichloropropane Other |
7e-06 ppb | 0.0007 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.117 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
1.79 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Manganese Heavy metal |
0.234 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Strontium Radiological |
0.613 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.065 ppb | — | — | — | — | — | — | Below guideline |
| cis-1,2-Dichloroethylene Volatile organic compound |
0.0194 ppb | — | 70.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.612 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
22.8 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.
CITY OF ALHAMBRA 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 ALHAMBRA water
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