A91/100
ARIZONA WATER CO - AJO — Water Quality Report 2026
Serving 2,100 people · Arizona
Water Source
Purchased Groundwater
County
—
System ID
AZ0410003
Violations
9
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 - AJO
Is ARIZONA WATER CO - AJO water safe to drink?
ARIZONA WATER CO - AJO water receives a grade of A (91/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has ARIZONA WATER CO - AJO detected?
1 contaminants were tested in ARIZONA WATER CO - AJO's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does ARIZONA WATER CO - AJO have any EPA violations?
Yes, ARIZONA WATER CO - AJO has 9 EPA violation(s) on record, with the most recent in 2020. Violation types include RPT, MR, Other.
How many people does ARIZONA WATER CO - AJO serve?
ARIZONA WATER CO - AJO serves approximately 2,100 people, Arizona. The system provides water to 1 community: Ajo.
What type of water does ARIZONA WATER CO - AJO provide?
ARIZONA WATER CO - AJO sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0410003.
How does ARIZONA WATER CO - AJO compare to other utilities in Arizona?
ARIZONA WATER CO - AJO scores 91/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Arizona state page for a full comparison of water systems.