TapSafetyReport
D20/100

CITY OF UNION — Water Quality Report 2026

Serving 3,432 people · Mississippi

Water Source
Groundwater
County
—
System ID
MS0510011
Violations
72

Contaminant Test Results

EPA Violation History

4

Violations (last 5yr)

4

Unresolved

0

Health-Related

TIER 3Unresolved

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 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

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 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

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, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

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, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov

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 CITY OF UNION

Is CITY OF UNION water safe to drink?

CITY OF UNION water receives a grade of D (20/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 72 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has CITY OF UNION detected?

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

Does CITY OF UNION have any EPA violations?

Yes, CITY OF UNION has 72 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, TT, Other. 2 are health-based violations.

How many people does CITY OF UNION serve?

CITY OF UNION serves approximately 3,432 people, Mississippi.

What type of water does CITY OF UNION provide?

CITY OF UNION sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MS0510011.

How does CITY OF UNION compare to other utilities in Mississippi?

CITY OF UNION scores 20/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Mississippi state page for a full comparison of water systems.