F0/100
EPCOR - TUBAC — Water Quality Report 2026
Serving 2,076 people · Arizona
Water Source
Groundwater
County
—
System ID
AZ0412001
Violations
117
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – July 12, 2022Rule: Ground Water 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 EPCOR - TUBAC
Is EPCOR - TUBAC water safe to drink?
EPCOR - TUBAC water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 117 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has EPCOR - TUBAC detected?
1 contaminants were tested in EPCOR - TUBAC's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does EPCOR - TUBAC have any EPA violations?
Yes, EPCOR - TUBAC has 117 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, RPT, Other. 31 are health-based violations.
How many people does EPCOR - TUBAC serve?
EPCOR - TUBAC serves approximately 2,076 people, Arizona. The system provides water to 1 community: Tubac.
What type of water does EPCOR - TUBAC provide?
EPCOR - TUBAC sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0412001.
How does EPCOR - TUBAC compare to other utilities in Arizona?
EPCOR - TUBAC 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.