F0/100
AVONDALE CITY OF — Water Quality Report 2026
Serving 83,001 people · Arizona
Water Source
Purchased Surface Water
County
—
System ID
AZ0407088
Violations
217
Contaminant Test Results
EPA Violation History
4
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: May 18, 2025 – June 18, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – January 31, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – December 31, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 1, 2022 – September 12, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About AVONDALE CITY OF
Is AVONDALE CITY OF water safe to drink?
AVONDALE CITY OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 217 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has AVONDALE CITY OF detected?
73 contaminants were tested in AVONDALE CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does AVONDALE CITY OF have any EPA violations?
Yes, AVONDALE CITY OF has 217 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, RPT. 13 are health-based violations.
How many people does AVONDALE CITY OF serve?
AVONDALE CITY OF serves approximately 83,001 people, Arizona. The system provides water to 1 community: Avondale.
What type of water does AVONDALE CITY OF provide?
AVONDALE CITY OF sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is AZ0407088.
How does AVONDALE CITY OF compare to other utilities in Arizona?
AVONDALE CITY OF scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Arizona state page for a full comparison of water systems.