Water Quality Report · Updated October 07, 2026
CHANDLER CITY OF
CHANDLER CITY OF delivers tap water graded D (61/100) by TapWaterSafety.org. The utility serves approximately 247,328 residents in CHANDLER, Arizona using surface water. The most significant water quality concerns are: Arsenic significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. For questions, the utility can be reached at 480-782-3730.
Is CHANDLER tap water safe to drink?
CHANDLER CITY OF delivers tap water that earns a grade of D (61/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including arsenic significantly above health guideline.
The utility serves 247,328 residents in CHANDLER, drawing from surface water.
Public testing data identifies 8 contaminants in this water above EWG's health-based guidelines, including: Arsenic, Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Chromium (hexavalent), Haloacetic acids (HAA5), Nitrate, Nitrate and nitrite, Uranium. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for CHANDLER CITY OF (system ID AZ0407090) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Arsenic Rule | Missed testing or reporting | 04/01/2023 | Open |
| Volatile Organic Chemicals | Missed testing or reporting | 01/01/2023 | Open |
| Inorganic Chemicals | Missed testing or reporting | 01/01/2015 | Open |
| Nitrate Rule | Missed testing or reporting | 04/01/2023 | Open |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for CHANDLER residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for CHANDLER CITY OF.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 5.2 ppb, 1300x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 35.8 ppb, 596x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 47.3 ppb, 315x above the EWG health guideline of 0.15 ppb.
Contact CHANDLER CITY OF
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for CHANDLER
Filters matched to the specific contaminants in this water supply.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 61/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 |
5.2 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 1300× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
35.8 ppb | 0.06 | — | — | — | — | — | 596× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
47.3 ppb | 0.15 | 80.0 | 100 | — | — | — | 315× over |
| Chromium (hexavalent) Heavy metal |
5.21 ppb | 0.02 | — | — | — | — | — | 261× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
10.9 ppb | 0.1 | 60.0 | 60 | — | — | — | 109× over |
| Nitrate Inorganic |
3.34 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 24× over |
| Nitrate and nitrite Inorganic |
3.16 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 23× over |
| Uranium Radiological |
1.89 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 4.4× over |
| Radium, combined (-226 and -228) Radiological |
0.05 pCi/L | 0.05 | 5.0 | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
89.7 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
5.42 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
82.6 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Thallium Heavy metal |
0.0106 ppb | 0.1 | 2.0 | — | — | — | — | Below guideline |
| Cadmium Heavy metal |
0.00287 ppb | 0.04 | 5.0 | 5 | 3 | 0.04 | — | Below guideline |
| Molybdenum Other |
2.58 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
4.18 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Selenium Heavy metal |
0.757 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.00522 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Trichloroethylene Volatile organic compound |
0.00521 ppb | 0.4 | 5.0 | 10 | 20 | 1.7 | — | Below guideline |
| Dichloromethane (methylene chloride) Volatile organic compound |
0.00455 ppb | 4.0 | 5.0 | — | — | — | — | Below guideline |
| Strontium Radiological |
0.995 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
1.16 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| 2,4-D Pesticide/Herbicide |
0.00424 ppb | 20.0 | 70.0 | — | — | — | — | Below guideline |
| Cobalt Other |
0.0141 ppb | 70.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.16 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
0.096 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.067 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
10.4 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Cyanide Inorganic |
1.15 ppb | — | 200.0 | 50 | 70 | 150 | — | Below guideline |
| Fluoride Inorganic |
0.499 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.314 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
189.4 ppb | — | — | — | — | — | — | Below guideline |
| Nitrite Inorganic |
0.00315 ppm | — | 1.0 | — | — | — | — | Below guideline |
| o-toluidine Other |
0.00052 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
CHANDLER CITY OF service area
This water system serves 1 community in Maricopa County, Arizona. Click any city for its dedicated tap water quality page.
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