Tap Water Quality Report
Tap water quality in PALMDALE, California
Tap water in PALMDALE, California receives a grade of D (65/100) from TapWaterSafety.org. It's served by PALMDALE WATER DIST.. The most significant water quality concerns are: Haloacetic acids (HAA5) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Arsenic detected. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in PALMDALE's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving PALMDALE.
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.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 35.0 ppb, 234x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 13.2 ppb, 220x above the EWG health guideline of 0.06 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.58 ppb.
EPA compliance record
Official U.S. EPA records for PALMDALE WATER DIST. (system ID CA1910102) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for PALMDALE
Filters matched to the specific contaminants in PALMDALE's water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
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 PALMDALE'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 |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
35.0 ppb | 0.15 | 80.0 | 100 | — | — | — | 234× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
13.2 ppb | 0.06 | — | — | — | — | — | 220× over |
| Chromium (hexavalent) Heavy metal |
3.27 ppb | 0.02 | — | — | — | — | — | 164× over |
| Bromodichloromethane Disinfection byproduct |
9.61 ppb | 0.06 | — | — | — | — | — | 160× over |
| Arsenic Heavy metal |
0.58 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 145× over |
| Dibromochloromethane Disinfection byproduct |
12.9 ppb | 0.1 | — | — | — | — | — | 129× over |
| Bromochloroacetic acid Disinfection byproduct |
2.07 ppb | 0.02 | — | — | — | — | — | 103× over |
| Dibromoacetic acid Disinfection byproduct |
2.64 ppb | 0.03 | — | — | — | — | — | 88× over |
| Bromoform Disinfection byproduct |
7.53 ppb | 0.5 | — | — | — | — | — | 15× over |
| Chloroform Disinfection byproduct |
5.0 ppb | 0.4 | — | — | — | — | — | 12× over |
| Nitrate Inorganic |
1.27 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 9.0× over |
| Nitrate and nitrite Inorganic |
1.12 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 8.0× over |
| Dichloroacetic acid Disinfection byproduct |
0.684 ppb | 0.2 | — | — | — | — | — | 3.4× over |
| Uranium Radiological |
1.1 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 2.6× over |
| Chlorate Disinfection byproduct |
155.6 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
10.5 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Bromochloromethane Other |
0.0107 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
15.5 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perchlorate Disinfection byproduct |
0.11 ppb | 1.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
2.44 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Trichloroacetic acid Disinfection byproduct |
0.00603 ppb | 0.1 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
3.04 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.0693 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.46 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.382 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.103 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.073 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
3.3 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.169 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 PALMDALE WATER DIST..