States ›New Hampshire ›Carroll County ›Madison

Madison, NH Tap Water Quality 2026

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

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

Main Utility: Village District Of Eidelweiss PWSID: NH1461010 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead has not been reported for this system and no violations are open. No PFAS was detected.

C

Madison earns a C for water quality

Graded on violations and PFAS, with state inspection findings. Lead not reported.

Lead: not reported
PFAS tested, none detected
12 violations since 2015, 7 health-based
No violations currently open
Madison's lead level vs. all New Hampshire community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: — 0% of the federal action level
✓ Lower lead than % of New Hampshire utilities
Population Served
510
~480 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
12 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
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.
193.1% of EPA action level
2,510 ppb
Action level: 1,300 ppb
No lead result has been reported for this system in the current window. That is a gap in state reporting, not a finding of safety. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Public Notice OTHER — — 2025 Resolved
Combined Uranium MCL EXCEEDANCE 57 UG/L 30 ug/L 2025 Archived
Public Notice OTHER — — 2025 Resolved
Combined Uranium MCL EXCEEDANCE 57 UG/L 30 ug/L 2025 Archived
Public Notice OTHER — — 2025 Resolved
Combined Uranium MCL EXCEEDANCE 67 UG/L 30 ug/L 2025 Archived
Combined Uranium MCL EXCEEDANCE 56 UG/L 30 ug/L 2024 Archived
Combined Uranium MCL EXCEEDANCE 32 UG/L 30 ug/L 2024 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Combined Uranium MCL EXCEEDANCE 38 UG/L 30 ug/L 2023 Resolved
Combined Uranium MCL EXCEEDANCE 42 UG/L 30 ug/L 2023 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 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

12 violations are on record since 2015, of which 7 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Village District Of Eidelweiss
PWSID NH1461010
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 510
Service connections 480
Systems serving this area 4
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Madison tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Madison water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Madison? ▼
Village District Of Eidelweiss (PWSID NH1461010), one of 4 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-08-21. No significant deficiencies were recorded.

What Should Madison 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.

Nearby Cities in New Hampshire

Wolfeboro, Nh Tap Water Quality 2026 Carroll Conway, Nh Tap Water Quality 2026 Carroll Bartlett, Nh Tap Water Quality 2026 Carroll Ossipee, Nh Tap Water Quality 2026 Carroll Wakefield, Nh Tap Water Quality 2026 Carroll Jackson, Nh Tap Water Quality 2026 Carroll