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D20/100

SEWICKLEY BORO WATER AUTH — Water Quality Report 2026

Serving 6,800 people · Pennsylvania

Water Source
Groundwater
County
—
System ID
PA5020050
Violations
61

Contaminant Test Results

2 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
Copper (90th percentile)
1.46 mg/L1.30 mg/LOver Limit
Lead (90th percentile)
0.005 mg/L0.015 mg/LAbove Goal

EPA Violation History

6

Violations (last 5yr)

3

Unresolved

1

Health-Related

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: December 15, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Monitoring violation

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

When: November 4, 2024 – February 14, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved

Maximum contaminant level violation

When: November 4, 2024 – December 3, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to Consumer Confidence Report

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

When: February 1, 2024 – February 29, 2024Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
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: June 1, 2021 – June 30, 2021Rule: Stage 1 DBPRVerify on EPA.gov
TIER 3Unresolved

Violation related to Consumer Confidence Report

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

When: June 1, 2021 – June 30, 2021Rule: Consumer Confidence RuleVerify 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 SEWICKLEY BORO WATER AUTH

Is SEWICKLEY BORO WATER AUTH water safe to drink?

SEWICKLEY BORO WATER AUTH water receives a grade of D (20/100), which is considered poor. 1 contaminant(s) exceed EPA legal limits and 61 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has SEWICKLEY BORO WATER AUTH detected?

32 contaminants were tested in SEWICKLEY BORO WATER AUTH's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).

Does SEWICKLEY BORO WATER AUTH have any EPA violations?

Yes, SEWICKLEY BORO WATER AUTH has 61 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, RPT, TT. 2 are health-based violations.

How many people does SEWICKLEY BORO WATER AUTH serve?

SEWICKLEY BORO WATER AUTH serves approximately 6,800 people, Pennsylvania.

What type of water does SEWICKLEY BORO WATER AUTH provide?

SEWICKLEY BORO WATER AUTH sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is PA5020050.

How does SEWICKLEY BORO WATER AUTH compare to other utilities in Pennsylvania?

SEWICKLEY BORO WATER AUTH scores 20/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Pennsylvania state page for a full comparison of water systems.