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F6/100

DUQUESNE WATER DEPT — Water Quality Report 2026

Serving 5,565 people · Pennsylvania

Water Source
Purchased Surface Water
County
—
System ID
PA5020012
Violations
58

Contaminant Test Results

EPA Violation History

10

Violations (last 5yr)

1

Unresolved

2

Health-Related

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: 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: January 1, 2023 – January 31, 2023Rule: 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: January 1, 2023 – January 31, 2023Rule: Stage 1 DBPREnforcement: 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: January 1, 2023 – January 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: October 1, 2022 – December 14, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: May 11, 2022 – December 8, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2022 – December 31, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: October 1, 2021 – December 14, 2022Enforcement: Resolving — corrective action underway
TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2021Verify 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 DUQUESNE WATER DEPT

Is DUQUESNE WATER DEPT water safe to drink?

DUQUESNE WATER DEPT water receives a grade of F (6/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 58 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has DUQUESNE WATER DEPT detected?

34 contaminants were tested in DUQUESNE WATER DEPT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does DUQUESNE WATER DEPT have any EPA violations?

Yes, DUQUESNE WATER DEPT has 58 EPA violation(s) on record, with the most recent in 2024. Violation types include MCL, MR, MON. 9 are health-based violations.

How many people does DUQUESNE WATER DEPT serve?

DUQUESNE WATER DEPT serves approximately 5,565 people, Pennsylvania.

What type of water does DUQUESNE WATER DEPT provide?

DUQUESNE WATER DEPT sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is PA5020012.

How does DUQUESNE WATER DEPT compare to other utilities in Pennsylvania?

DUQUESNE WATER DEPT scores 6/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Pennsylvania state page for a full comparison of water systems.