Tap Water Quality Report
Tap water quality in LAKEWOOD, California
Tap water in LAKEWOOD, California receives a grade of D (60/100) from TapWaterSafety.org. It's served by LAKEWOOD - CITY, WATER DEPT.. The most significant water quality concerns are: Arsenic significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in LAKEWOOD's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving LAKEWOOD.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 7.71 ppb, 1927x above the EWG health guideline of 0.004 ppb.
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 13.1 ppb, 219x above the EWG health guideline of 0.06 ppb.
Recommended filters for LAKEWOOD
Filters matched to the specific contaminants in LAKEWOOD's water supply.
Reverse Osmosis
$249-$750Arsenic is most effectively removed by reverse osmosis. Some specialized adsorptive filters also work.
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.
All contaminants detected in LAKEWOOD'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 |
|---|---|---|---|---|---|---|---|---|
| Arsenic Heavy metal |
7.71 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 1927× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
13.1 ppb | 0.06 | — | — | — | — | — | 219× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
22.3 ppb | 0.15 | 80.0 | 100 | — | — | — | 148× over |
| Bromodichloromethane Disinfection byproduct |
5.61 ppb | 0.06 | — | — | — | — | — | 94× over |
| Dibromochloromethane Disinfection byproduct |
8.22 ppb | 0.1 | — | — | — | — | — | 82× over |
| Dibromoacetic acid Disinfection byproduct |
2.12 ppb | 0.03 | — | — | — | — | — | 71× over |
| Chromium (hexavalent) Heavy metal |
0.384 ppb | 0.02 | — | — | — | — | — | 19× over |
| Chloroform Disinfection byproduct |
4.99 ppb | 0.4 | — | — | — | — | — | 12× over |
| Bromoform Disinfection byproduct |
3.76 ppb | 0.5 | — | — | — | — | — | 7.5× over |
| Trichloroacetic acid Disinfection byproduct |
0.649 ppb | 0.1 | — | — | — | — | — | 6.5× over |
| Dichloroacetic acid Disinfection byproduct |
1.2 ppb | 0.2 | — | — | — | — | — | 6.0× over |
| Nitrate and nitrite Inorganic |
0.603 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 4.3× over |
| Uranium Radiological |
1.23 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 2.9× over |
| 1,4-Dioxane Semi-volatile organic compound |
0.996 ppb | 0.35 | — | — | 50 | 1 | — | 2.8× over |
| Nitrate Inorganic |
0.364 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.6× over |
| Chlorate Disinfection byproduct |
102.9 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
80.2 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Vanadium Other |
2.26 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
3.3 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.61 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.167 ppb | 53.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.000911 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.453 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.312 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.239 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 LAKEWOOD - CITY, WATER DEPT..