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Walnutport, PA Tap Water Quality 2026

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

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

Main Utility: Walnutport Authority PWSID: PA3480032 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

C

Walnutport earns a C for water quality

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

Lead: not detected
PFAS never sampled at this system
90 violations since 2015, 4 health-based
No violations currently open
Walnutport's lead level vs. all Pennsylvania community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Pennsylvania utilities
Population Served
2033
~1107 connections
Water Source
Surface water
Groundwater under the direct influence of surface water — SDWIS source code GU
Active Violations
0
90 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
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.
123.1% of EPA action level
1,600 ppb
Action level: 1,300 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Nitrate MONITORING AND REPORTING — 10 mg/L 2025 Archived
Nitrite MONITORING AND REPORTING — 1 mg/L 2025 Archived
Revised Total Coliform Rule TREATMENT TECHNIQUE — — 2024 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Revised Total Coliform Rule MCL EXCEEDANCE — — 2024 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2023 Resolved
Nitrite MONITORING AND REPORTING — 1 mg/L 2023 Resolved
Endothall MONITORING AND REPORTING — 0.1 mg/L 2023 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2023 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2023 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2023 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2023 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2023 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2023 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2023 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2023 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2023 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2023 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2023 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2023 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2023 Resolved
Public Notice OTHER — — 2022 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2022 Resolved
Public Notice OTHER — — 2022 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2022 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
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2021 Resolved
Fluoride MONITORING AND REPORTING — 4.0 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
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
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2021 Resolved
Fluoride MONITORING AND REPORTING — 4.0 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
Surface Water Treatment Rule MONITORING AND REPORTING — — 2019 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2019 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2019 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2018 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2018 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2018 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2018 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2018 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2018 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2017 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2015 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2015 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2015 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2015 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2015 Resolved
Endothall MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2015 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2015 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2015 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2015 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2015 Resolved
LASSO MONITORING AND REPORTING — — 2015 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2015 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2015 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2015 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2015 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2015 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2015 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2015 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2015 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2015 Resolved
Chlordane MONITORING AND REPORTING — 0.002 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

90 violations are on record since 2015, of which 4 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Walnutport Authority
PWSID PA3480032
Water source Surface water — Groundwater under the direct influence of surface water — SDWIS source code GU
Population served 2,033
Service connections 1,107
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Walnutport tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Walnutport 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 Walnutport? ▼
Walnutport Authority (PWSID PA3480032), one of 2 systems serving this area. Surface water. Groundwater under the direct influence of surface water — SDWIS source code GU
When was this system last inspected? ▼
It was last inspected on 2023-12-20. No significant deficiencies were recorded.

What Should Walnutport Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
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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