CHANDLER CITY OF vs PHOENIX CITY OF
Water quality comparison — risk levels, violations, PFAS records, and contaminants
Quick Answer
PHOENIX CITY OF has a lower risk classification (safe). CHANDLER CITY OF has 0 open health-based violations and 1595 PFAS records. PHOENIX CITY OF has 0 open health-based violations and 1512 PFAS records.
Arizona · AZ0407090
Low Concern
Minor detections below regulatory limits. Routine monitoring adequate.
0
Open violations
1595
PFAS records
Arizona · AZ0407025
No Concerns Detected
Water meets all safety standards with no detected exceedances.
0
Open violations
1512
PFAS records
Head-to-Head Comparison
| Metric | CHANDLER CITY OF | PHOENIX CITY OF |
|---|---|---|
| State | Arizona | Arizona |
| Risk Level | Low Concern | No Concerns Detected |
| Population Served | 247,328 | 1,695,000 |
| Open Health Violations | 0 | 0 |
| Total Violations | 174 | 6 |
| PFAS Records | 1595 | 1512 |
| Ownership | Local | Local |
| Service Type | Surface water | Surface water |
| City Served | Chandler | Phoenix |
Contaminants in Violation Records
CHANDLER CITY OF
- Arsenic
- Chromium
- Cadmium
- Fluoride
- Barium
- E. coli
PHOENIX CITY OF
- Total Coliform
- Cryptosporidium
- Coliform (TCR)
Key Differences
CHANDLER CITY OF has a low risk rating vs. safe for PHOENIX CITY OF.
CHANDLER CITY OF has 1595 PFAS records vs. 1512 for PHOENIX CITY OF.
What Should I Do?
If either utility shows open violations or elevated PFAS records, consider:
- Installing a reverse osmosis filter — removes PFAS, lead, arsenic, nitrates, and most heavy metals.
- Requesting your utility’s annual Consumer Confidence Report (CCR) for the most current test results.
- Ordering a certified lab water test if you want contaminant-specific data for your address.
Frequently Asked Questions
Which is safer — CHANDLER CITY OF or PHOENIX CITY OF?
PHOENIX CITY OF has a lower risk classification (safe). PHOENIX CITY OF has 0 open health-based violations compared to 0 for the other system.
What does "open health-based violation" mean?
An open health-based violation means a water system has exceeded an EPA Maximum Contaminant Level (MCL) or failed to meet a treatment technique — and the violation has not yet been resolved. These are the most serious type of water quality violations.
How current is this data?
Violation data comes from EPA's Safe Drinking Water Information System (SDWIS), which is updated as utilities report. PFAS data comes from EPA's UCMR 5 monitoring (2023–2025). Risk levels are recalculated daily.
What does PWSID mean?
PWSID stands for Public Water System ID — a unique federal identifier assigned to each community water system. You can use it to look up a system in EPA's ECHO database.