States ›Pennsylvania ›Columbia County ›Main

Main, PA Tap Water Quality 2026

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

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

Main Utility: Wonderview Water Co PWSID: PA4190015 Updated: 2026 Q2
🚨

1 violation currently open

Lead is 5.00 ppb, 33% of the action level. PFAS has never been sampled at this system.

F

Main earns an F for water quality

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

Lead: 5.00 ppb — 33% of the federal action level
PFAS never sampled at this system
40 violations since 2015, 1 health-based
1 violation currently open
Main's lead level vs. all Pennsylvania community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 5.00 ppb — 33% of the federal action level
✓ Lower lead than 34% of Pennsylvania utilities
Population Served
397
~162 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
1
1 open of 40 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
33% of EPA action level
5.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 5.00 ppb, 33% 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 — — 2024 Unaddressed
Groundwater Rule MONITORING AND REPORTING — — 2021 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2021 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2021 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2021 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2021 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2021 Resolved
Nickel MONITORING AND REPORTING — — 2021 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2021 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2021 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2021 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2021 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2018 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2017 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2017 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2017 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2017 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2017 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2016 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2016 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2016 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2016 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2016 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2016 Resolved
Revised Total Coliform Rule OTHER — — 2016 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2016 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2016 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2016 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2016 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2016 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2015 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2015 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2015 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2015 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2015 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2015 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2015 Resolved
Chlorine MONITORING AND REPORTING — 4.0 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

1 violation remains open, out of 40 recorded since 2015 (1 health-based).

About the Main Water System

Utility Wonderview Water Co
PWSID PA4190015
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 397
Service connections 162
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Main tap water safe to drink? ▼
No federal limit is exceeded on record. 1 violation(s) remain open. Lead is 5.00 ppb, 33% of the action level.
Does Main 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 Main? ▼
Wonderview Water Co (PWSID PA4190015), one of 2 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2023-08-16. Inspectors recorded 3 significant deficiencies.

What Should Main 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
Follow the open violation
This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

Nearby Cities in Pennsylvania

Bloomsburg, Pa Tap Water Quality 2026 Columbia Berwick, Pa Tap Water Quality 2026 Columbia Scott, Pa Tap Water Quality 2026 Columbia Catawissa, Pa Tap Water Quality 2026 Columbia Mifflin, Pa Tap Water Quality 2026 Columbia Almedia, Pa Tap Water Quality 2026 Columbia