Tap Water Quality Report
Tap water quality in AVONDALE, Arizona
Tap water in AVONDALE, Arizona receives a grade of F (43/100) from TapWaterSafety.org. It's served by AVONDALE CITY OF. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Arsenic significantly above health guideline; Chromium (hexavalent) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in AVONDALE's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving AVONDALE.
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.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 1.2 ppt, 1200x above the EWG health guideline of 0.001 ppt.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 2.0 ppb, 500x above the EWG health guideline of 0.004 ppb.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 6.12 ppb, 306x above the EWG health guideline of 0.02 ppb.
EPA compliance record
Official U.S. EPA records for AVONDALE CITY OF (system ID AZ0407088) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Missed testing or reporting | 10/01/2023 | Open |
| Public Notice Rule and Revised PN Rule | Other (e.g. public notice) | 05/18/2025 | Open |
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 AVONDALE
Filters matched to the specific contaminants in AVONDALE's water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
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 AVONDALE'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 |
|---|---|---|---|---|---|---|---|---|
| Perfluorohexane sulfonate (PFHXS) PFAS |
1.2 ppt | 0.001 | 10.0 | — | — | — | — | 1200× over |
| Arsenic Heavy metal |
2.0 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 500× over |
| Chromium (hexavalent) Heavy metal |
6.12 ppb | 0.02 | — | — | — | — | — | 306× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
26.5 ppb | 0.15 | 80.0 | 100 | — | — | — | 177× over |
| Dibromochloromethane Disinfection byproduct |
7.47 ppb | 0.1 | — | — | — | — | — | 75× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
4.45 ppb | 0.06 | — | — | — | — | — | 74× over |
| Bromodichloromethane Disinfection byproduct |
3.69 ppb | 0.06 | — | — | — | — | — | 61× over |
| Perfluorooctanoic acid (PFOA) PFAS |
3.77 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 42× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
3.11 ppb | 0.1 | 60.0 | 60 | — | — | — | 31× over |
| Nitrate Inorganic |
4.12 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 29× over |
| Nitrate and nitrite Inorganic |
4.12 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 29× over |
| Chloroform Disinfection byproduct |
7.2 ppb | 0.4 | — | — | — | — | — | 18× over |
| Bromoform Disinfection byproduct |
8.15 ppb | 0.5 | — | — | — | — | — | 16× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
2.97 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 9.9× over |
| Uranium Radiological |
2.3 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 5.3× over |
| Chlorite* Disinfection byproduct |
130.8 ppb | 50.0 | 1000.0 | — | — | — | — | 2.6× over |
| Radium, combined (-226 and -228)* Radiological |
0.05 pCi/L | 0.05 | 5.0 | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
149.8 ppb | 210.0 | — | — | — | — | — | Below guideline |
| 1,2-Dibromo-3-chloropropane (DBCP) Other |
0.0011 ppb | 0.0017 | 0.2 | — | — | — | — | Below guideline |
| Vanadium Other |
12.6 ppb | 21.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0658 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Barium Heavy metal |
116.3 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Molybdenum Other |
1.9 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Selenium Heavy metal |
0.344 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Di(2-ethylhexyl) phthalate* Semi-volatile organic compound |
0.0163 ppb | 3.0 | 6.0 | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
4.97 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
4.27 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
8.04 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
1.64 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
0.771 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
0.0526 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.457 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
4.12 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.234 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.335 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
72.2 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 AVONDALE CITY OF.