TapSafetyReport
F0/100

DOUGLAS CITY OF — Water Quality Report 2026

Serving 16,656 people · Arizona

Water Source
Groundwater
County
—
System ID
AZ0402014
Violations
838

Contaminant Test Results

EPA Violation History

4

Violations (last 5yr)

0

Unresolved

0

Health-Related

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

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – February 16, 2023Rule: 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: April 1, 2022 – June 30, 2022Rule: 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: January 1, 2022 – March 31, 2022Rule: Stage 1 DBPREnforcement: 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 DOUGLAS CITY OF

Is DOUGLAS CITY OF water safe to drink?

DOUGLAS CITY OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 838 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has DOUGLAS CITY OF detected?

66 contaminants were tested in DOUGLAS CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does DOUGLAS CITY OF have any EPA violations?

Yes, DOUGLAS CITY OF has 838 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, RPT, Other. 28 are health-based violations.

How many people does DOUGLAS CITY OF serve?

DOUGLAS CITY OF serves approximately 16,656 people, Arizona. The system provides water to 1 community: Douglas.

What type of water does DOUGLAS CITY OF provide?

DOUGLAS CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AZ0402014.

How does DOUGLAS CITY OF compare to other utilities in Arizona?

DOUGLAS 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.

Cities Served

Douglas