F0/100

TOMBSTONE CITY OF — Water Quality Report 2026

Serving 1,545 people · Arizona

Water Source
Surface Water
County
System ID
AZ0402033
Violations
495

Contaminant Test Results

EPA Violation History

7

Violations (last 5yr)

0

Unresolved

0

Health-Related

TIER 3Resolved

Missed required monitoring deadline

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
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
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: April 1, 2022 – April 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Missed required monitoring deadline

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

When: April 1, 2022 – April 30, 2022Rule: Surface Water Treatment 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: August 1, 2021 – July 31, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Missed required monitoring deadline

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

When: July 1, 2021 – July 31, 2021Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Missed required monitoring deadline

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

When: June 1, 2021 – June 30, 2021Rule: 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 TOMBSTONE CITY OF

Is TOMBSTONE CITY OF water safe to drink?

TOMBSTONE CITY OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 495 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has TOMBSTONE CITY OF detected?

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

Does TOMBSTONE CITY OF have any EPA violations?

Yes, TOMBSTONE CITY OF has 495 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, RPT, Other. 21 are health-based violations.

How many people does TOMBSTONE CITY OF serve?

TOMBSTONE CITY OF serves approximately 1,545 people, Arizona. The system provides water to 1 community: Tombstone.

What type of water does TOMBSTONE CITY OF provide?

TOMBSTONE 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 AZ0402033.

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

TOMBSTONE 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