Mifflin, PA Tap Water Quality 2026

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

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

Main Utility: Pillow Boro Auth PWSID: PA7220046 Updated: 2026 Q2

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Lead above the federal action level

Lead is 28.00 ppb, 187% of the action level and no violations are open. PFAS has never been sampled at this system.

Mifflin earns a C for water quality

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

Lead: 28.00 ppb — 187% of the federal action level

PFAS never sampled at this system

14 violations since 2015, 1 health-based

No violations currently open

Mifflin's lead level vs. all Pennsylvania community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 28.00 ppb — 100% of the federal action level

✓ Lower lead than 6% of Pennsylvania utilities

Population Served

~131 connections

Water Source

Groundwater

Drawn from wells — SDWIS source code GW

Active Violations

14 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

100% of EPA action level

28.00 ppb

Action level: 15 ppb

The 90th-percentile lead result is 28.00 ppb, 187% 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.

Contaminant Violations (2015–Present)

Contaminant	Type	Measured	Limit	Period	Status
Nitrate	MCL EXCEEDANCE	11.3 MG/L	10 mg/L	2025	Resolved
Nitrate	MONITORING AND REPORTING	—	10 mg/L	2025	Resolved
Groundwater Rule	MONITORING AND REPORTING	—	—	2024	Resolved
Nitrate	MONITORING AND REPORTING	—	10 mg/L	2024	Resolved
Nitrite	MONITORING AND REPORTING	—	1 mg/L	2024	Resolved
Arsenic	MONITORING AND REPORTING	—	0.010 mg/L	2024	Resolved
Revised Total Coliform Rule	MONITORING FAILURE	—	—	2023	Resolved
Groundwater Rule	MONITORING AND REPORTING	—	—	2021	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2016	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2016	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2016	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2016	Resolved
2,3,7,8-TCDD	MONITORING AND REPORTING	—	0.00000003 mg/L	2015	Resolved
Total Polychlorinated Biphenyls (PCB)	MONITORING AND REPORTING	—	0.0005 mg/L	2015	Resolved

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

14 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Pillow Boro Auth

PWSID PA7220046

Water source Groundwater — Drawn from wells — SDWIS source code GW

Population served

Service connections 131

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Mifflin tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 28.00 ppb, 187% of the action level.

Does Mifflin 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 Mifflin? ▼

Pillow Boro Auth (PWSID PA7220046). Groundwater. Drawn from wells — SDWIS source code GW

When was this system last inspected? ▼

It was last inspected on 2024-11-12. No significant deficiencies were recorded.

What Should Mifflin Residents Do?

Consider a filter certified for lead

Look for NSF/ANSI 53 certification for lead reduction.

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.

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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