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Thornhurst, PA Tap Water Quality 2026

Water quality report for Thornhurst, PA — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Thornhurst's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Aqua Pa Water Co Thornhurst Cc PWSID: PA2350053 Updated: 2026 Q2
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Lead above the federal action level

Lead is 17.00 ppb, 113% of the action level and no violations are open. PFAS has never been sampled at this system.

C

Thornhurst earns a C for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 17.00 ppb — 113% of the federal action level
PFAS never sampled at this system
No violations since 2015
No violations currently open
Thornhurst's lead level vs. all Pennsylvania community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 17.00 ppb — 100% of the federal action level
✓ Lower lead than 13% of Pennsylvania utilities
Population Served
566
~308 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
None on record since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
100% of EPA action level
17.00 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
330.8% of EPA action level
4,300 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 17.00 ppb, 113% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

✓ No violations on record for this water system.
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

No violations are on record for this system since 2015. EPA records violations for every community water system, so this reflects a clean compliance history rather than missing data.

About the Main Water System

Utility Aqua Pa Water Co Thornhurst Cc
PWSID PA2350053
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 566
Service connections 308
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Thornhurst tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 17.00 ppb, 113% of the action level.
Does Thornhurst water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Thornhurst? ▼
Aqua Pa Water Co Thornhurst Cc (PWSID PA2350053). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2026-02-06. No significant deficiencies were recorded.

What Should Thornhurst Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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