States ›Pennsylvania ›Dauphin County ›Upper Paxton

Upper Paxton, PA Tap Water Quality 2026

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

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

Main Utility: Millersburg Water Auth PWSID: PA7220034 Updated: 2026 Q2
⚠️

PFAS above the federal limit at 1 of 2 sampling points

Lead was not detected and no violations are open. However, PFAS exceeds the federal limit at 1 of 2 sampling points, running as high as 2.29 times the limit.

C

Upper Paxton earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: not detected
PFAS above the federal limit at 1 of 2 sampling points
39 violations since 2015, 0 health-based
No violations currently open
Upper Paxton'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
2066
~1978 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
39 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
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.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
CARBON, TOTAL MONITORING AND REPORTING — TT 2026 Archived
Endrin MONITORING AND REPORTING — 0.002 mg/L 2023 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2023 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2023 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2023 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2023 Resolved
LASSO MONITORING AND REPORTING — — 2023 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2023 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2023 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2023 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2023 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2023 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2021 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2017 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2017 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2017 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2017 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2017 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2017 Resolved
LASSO MONITORING AND REPORTING — — 2017 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2017 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2017 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2017 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2017 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2017 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2017 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2017 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2017 Resolved
LASSO MONITORING AND REPORTING — — 2017 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2017 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2017 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2017 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

39 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Millersburg Water Auth
PWSID PA7220034
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 2,066
Service connections 1,978
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Upper Paxton tap water safe to drink? ▼
It meets most federal standards, but PFAS exceeds the federal limit at 1 of 2 sampling points. No violations are currently open.
Does Upper Paxton water have PFAS? ▼
Yes. PFAS exceeds the federal limit at 1 of 2 sampling points, running as high as 2.29 times the limit. Limits are enforced on a running annual average at each sampling point, not on a single sample.
Who supplies water to Upper Paxton? ▼
Millersburg Water Auth (PWSID PA7220034). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2026-01-06. No significant deficiencies were recorded.

What Should Upper Paxton Residents Do?

1
Consider a reverse-osmosis filter
Reverse osmosis removes more than 95% of PFAS. Standard carbon pitchers do not.
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.

Nearby Cities in Pennsylvania

Harrisburg, Pa Tap Water Quality 2026 Dauphin Lower Paxton, Pa Tap Water Quality 2026 Dauphin Swatara, Pa Tap Water Quality 2026 Dauphin Derry, Pa Tap Water Quality 2026 Dauphin Susquehanna, Pa Tap Water Quality 2026 Dauphin Middletown, Pa Tap Water Quality 2026 Dauphin