Tap Water Quality Report
Tap water quality in LYNWOOD, California
Tap water in LYNWOOD, California receives a grade of F (47/100) from TapWaterSafety.org. It's served by LYNWOOD-CITY, WATER DEPT.. The most significant water quality concerns are: PFAS contamination; Arsenic significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Perfluorohexane sulfonate (PFHXS) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in LYNWOOD's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving LYNWOOD.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 2.93 ppb, 733x 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.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 0.128 ppt, 128x above the EWG health guideline of 0.001 ppt.
Recommended filters for LYNWOOD
Filters matched to the specific contaminants in LYNWOOD'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.
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 LYNWOOD'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 |
2.93 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 733× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Perfluorohexane sulfonate (PFHXS) PFAS |
0.128 ppt | 0.001 | 10.0 | — | — | — | — | 128× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
9.52 ppb | 0.15 | 80.0 | 100 | — | — | — | 63× over |
| Chromium (hexavalent) Heavy metal |
0.958 ppb | 0.02 | — | — | — | — | — | 48× over |
| Dibromochloromethane Disinfection byproduct |
3.87 ppb | 0.1 | — | — | — | — | — | 39× over |
| Bromodichloromethane Disinfection byproduct |
2.3 ppb | 0.06 | — | — | — | — | — | 38× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
2.1 ppb | 0.06 | — | — | — | — | — | 35× over |
| Tetrachloroethylene (perchloroethylene) Volatile organic compound |
1.85 ppb | 0.06 | 5.0 | — | — | — | — | 31× over |
| Dibromoacetic acid Disinfection byproduct |
0.609 ppb | 0.03 | — | — | — | — | — | 20× over |
| Nitrate Inorganic |
1.32 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 9.4× over |
| Uranium Radiological |
3.49 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 8.1× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
1.79 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 6.0× over |
| Trichloroethylene Volatile organic compound |
2.39 ppb | 0.4 | 5.0 | 10 | 20 | 1.7 | — | 6.0× over |
| 1,4-Dioxane Semi-volatile organic compound |
1.7 ppb | 0.35 | — | — | 50 | 1 | — | 4.9× over |
| Bromoform Disinfection byproduct |
2.17 ppb | 0.5 | — | — | — | — | — | 4.3× over |
| Chloroform Disinfection byproduct |
1.18 ppb | 0.4 | — | — | — | — | — | 3.0× over |
| Trichloroacetic acid Disinfection byproduct |
0.266 ppb | 0.1 | — | — | — | — | — | 2.7× over |
| Dichloroacetic acid Disinfection byproduct |
0.486 ppb | 0.2 | — | — | — | — | — | 2.4× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.187 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 2.1× over |
| Nitrate and nitrite* Inorganic |
0.287 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.0× over |
| Radium, combined (-226 and -228) Radiological |
0.04 pCi/L | 0.05 | 5.0 | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
74.5 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Bromochloromethane Other |
0.016 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
7.19 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
123.3 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Aluminum* Heavy metal |
77.5 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Vanadium Other |
2.71 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
5.34 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.00207 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.746 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.206 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.086 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.033 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethylene Volatile organic compound |
0.111 ppb | — | 7.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.327 ppm | — | 4.0 | 1.5 | 1.5 | — | — | 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 LYNWOOD-CITY, WATER DEPT..