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Lower Mahanoy, PA Tap Water Quality 2026

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

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

Main Utility: Lower Mahanoy Twp Mun Auth PWSID: PA4490018 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 9.00 ppb, 60% of the action level and no violations are open. PFAS has never been sampled at this system.

C

Lower Mahanoy earns a C for water quality

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

Lead: 9.00 ppb — 60% of the federal action level
PFAS never sampled at this system
8 violations since 2015, 1 health-based
No violations currently open
Lower Mahanoy's lead level vs. all Pennsylvania community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 9.00 ppb — 60% of the federal action level
✓ Lower lead than 18% of Pennsylvania utilities
Population Served
510
~186 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
8 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
60% of EPA action level
9.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 9.00 ppb, 60% 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)

ContaminantTypeMeasuredLimitPeriodStatus
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Public Notice OTHER — — 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
Consumer Confidence Rule OTHER — — 2022 Resolved
Consumer Confidence Rule OTHER — — 2022 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2019 Resolved
Nitrite MONITORING AND REPORTING — 1 mg/L 2019 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2018 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

8 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 Lower Mahanoy Twp Mun Auth
PWSID PA4490018
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 510
Service connections 186
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Lower Mahanoy tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 9.00 ppb, 60% of the action level.
Does Lower Mahanoy 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 Lower Mahanoy? ▼
Lower Mahanoy Twp Mun Auth (PWSID PA4490018). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-01-15. Inspectors recorded 1 significant deficiency.

What Should Lower Mahanoy 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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