F0/100
ARIZONA WATER CO - SUPERIOR — Water Quality Report 2026
Serving 4,393 people · Arizona
Water Source
Groundwater
County
—
System ID
AZ0411021
Violations
128
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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 ARIZONA WATER CO - SUPERIOR
Is ARIZONA WATER CO - SUPERIOR water safe to drink?
ARIZONA WATER CO - SUPERIOR water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 128 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ARIZONA WATER CO - SUPERIOR detected?
31 contaminants were tested in ARIZONA WATER CO - SUPERIOR's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does ARIZONA WATER CO - SUPERIOR have any EPA violations?
Yes, ARIZONA WATER CO - SUPERIOR has 128 EPA violation(s) on record, with the most recent in 2015. Violation types include MR, Other.
How many people does ARIZONA WATER CO - SUPERIOR serve?
ARIZONA WATER CO - SUPERIOR serves approximately 4,393 people, Arizona. The system provides water to 1 community: Superior.
What type of water does ARIZONA WATER CO - SUPERIOR provide?
ARIZONA WATER CO - SUPERIOR sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0411021.
How does ARIZONA WATER CO - SUPERIOR compare to other utilities in Arizona?
ARIZONA WATER CO - SUPERIOR 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.