TapSafetyReport
D25/100

OLD UNION PUBLIC WATER AUTHORITY — Water Quality Report 2026

Serving 1,200 people · Arkansas

Water Source
Groundwater
County
—
System ID
AR0000559
Violations
28

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.006 mg/L0.015 mg/LAbove Goal

EPA Violation History

13

Violations (last 5yr)

3

Unresolved

1

Health-Related

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: April 1, 2023 – September 12, 2023Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 3Resolved

Monitoring violation

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

When: February 1, 2023 – March 6, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Monitoring violation

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

When: January 1, 2023Rule: Total Coliform RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: January 1, 2023 – September 12, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring violation

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

When: October 1, 2022Rule: Total Coliform RuleEnforcement: Formal — state order issued
TIER 1 — URGENTUnresolved

Maximum Contaminant Level Violation

When: October 1, 2022 – October 31, 2022Rule: Total Coliform RuleEnforcement: Formal — state order issuedVerify on EPA.gov
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2022 – September 12, 2023Enforcement: Formal — state order issued
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: May 1, 2022 – September 12, 2023Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 1, 2022 – September 12, 2023Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 3Resolved

Monitoring violation

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

When: February 1, 2022Rule: Total Coliform RuleEnforcement: Formal — state order issued
TIER 3Unresolved

Monitoring Violation

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

When: February 1, 2022 – February 28, 2022Rule: Total Coliform RuleEnforcement: Formal — state order issuedVerify on EPA.gov
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, 2022 – September 12, 2023Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 3Resolved

Monitoring violation

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

When: October 1, 2021 – February 28, 2022Rule: Total Coliform RuleEnforcement: Formal — state order issued

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 OLD UNION PUBLIC WATER AUTHORITY

Is OLD UNION PUBLIC WATER AUTHORITY water safe to drink?

OLD UNION PUBLIC WATER AUTHORITY water receives a grade of D (25/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 28 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has OLD UNION PUBLIC WATER AUTHORITY detected?

1 contaminants were tested in OLD UNION PUBLIC WATER AUTHORITY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does OLD UNION PUBLIC WATER AUTHORITY have any EPA violations?

Yes, OLD UNION PUBLIC WATER AUTHORITY has 28 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, RPT, MCL. 11 are health-based violations.

How many people does OLD UNION PUBLIC WATER AUTHORITY serve?

OLD UNION PUBLIC WATER AUTHORITY serves approximately 1,200 people, Arkansas.

What type of water does OLD UNION PUBLIC WATER AUTHORITY provide?

OLD UNION PUBLIC WATER AUTHORITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AR0000559.

How does OLD UNION PUBLIC WATER AUTHORITY compare to other utilities in Arkansas?

OLD UNION PUBLIC WATER AUTHORITY scores 25/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Arkansas state page for a full comparison of water systems.