Tap Water Quality Report
Tap water quality in LA HABRA, California
Tap water in LA HABRA, California receives a grade of D (64/100) from TapWaterSafety.org. It's served by CITY OF LA HABRA. The most significant water quality concerns are: Haloacetic acids (HAA5) 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 LA HABRA's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving LA HABRA.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 35.3 ppb, 353x above the EWG health guideline of 0.1 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 16.3 ppb, 271x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 33.3 ppb, 222x above the EWG health guideline of 0.15 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.556 ppb.
Recommended filters for LA HABRA
Filters matched to the specific contaminants in LA HABRA's water supply.
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 LA HABRA'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 |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA5) Disinfection byproduct |
35.3 ppb | 0.1 | 60.0 | 60 | — | — | — | 353× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
16.3 ppb | 0.06 | — | — | — | — | — | 271× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
33.3 ppb | 0.15 | 80.0 | 100 | — | — | — | 222× over |
| Arsenic Heavy metal |
0.556 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 139× over |
| Dibromoacetic acid Disinfection byproduct |
3.65 ppb | 0.03 | — | — | — | — | — | 122× over |
| Dibromochloromethane Disinfection byproduct |
8.5 ppb | 0.1 | — | — | — | — | — | 85× over |
| Bromodichloromethane Disinfection byproduct |
3.14 ppb | 0.06 | — | — | — | — | — | 52× over |
| Bromoform Disinfection byproduct |
20.2 ppb | 0.5 | — | — | — | — | — | 40× over |
| Chromium (hexavalent) Heavy metal |
0.727 ppb | 0.02 | — | — | — | — | — | 36× over |
| Radium, combined (-226 and -228) Radiological |
1.04 pCi/L | 0.05 | 5.0 | — | — | — | — | 21× over |
| Uranium Radiological |
1.94 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 4.5× over |
| Dichloroacetic acid Disinfection byproduct |
0.826 ppb | 0.2 | — | — | — | — | — | 4.1× over |
| Nitrate and nitrite Inorganic |
0.556 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 4.0× over |
| Chloroform Disinfection byproduct |
1.36 ppb | 0.4 | — | — | — | — | — | 3.4× over |
| Nitrate Inorganic |
0.237 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.7× over |
| Trichloroacetic acid Disinfection byproduct |
0.161 ppb | 0.1 | — | — | — | — | — | 1.6× over |
| 1,4-Dioxane Semi-volatile organic compound |
0.299 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Chlorate Disinfection byproduct |
86.8 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
10.5 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
17.0 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
1.23 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.0136 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.698 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.37 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.256 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 CITY OF LA HABRA.