F0/100
GLENDALE CITY OF — Water Quality Report 2026
Serving 234,766 people · Arizona
Water Source
Surface Water
County
—
System ID
AZ0407093
Violations
516
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
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, 2025 – March 31, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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, 2025 – January 31, 2025Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 1, 2023 – August 31, 2023Rule: Surface Water Treatment 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 GLENDALE CITY OF
Is GLENDALE CITY OF water safe to drink?
GLENDALE CITY OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 516 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has GLENDALE CITY OF detected?
76 contaminants were tested in GLENDALE CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does GLENDALE CITY OF have any EPA violations?
Yes, GLENDALE CITY OF has 516 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MCL. 2 are health-based violations.
How many people does GLENDALE CITY OF serve?
GLENDALE CITY OF serves approximately 234,766 people, Arizona. The system provides water to 1 community: Glendale.
What type of water does GLENDALE CITY OF provide?
GLENDALE CITY OF sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is AZ0407093.
How does GLENDALE CITY OF compare to other utilities in Arizona?
GLENDALE 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.