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Sunapee, NH Tap Water Quality 2026

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

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

Main Utility: Sunapee Water Works PWSID: NH2271010 Updated: 2026 Q2
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Lead above the federal action level

Lead is 16.00 ppb, 107% of the action level and no violations are open. PFAS has never been sampled at this system.

D

Sunapee earns a D for water quality

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

Lead: 16.00 ppb — 107% of the federal action level
PFAS never sampled at this system
8 violations since 2015, 8 health-based
No violations currently open
Sunapee's lead level vs. all New Hampshire community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 16.00 ppb — 100% of the federal action level
✓ Lower lead than 70% of New Hampshire utilities
Population Served
1511
~507 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
8 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
100% of EPA action level
16.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 16.00 ppb, 107% 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
TTHM MCL EXCEEDANCE 0.081 MG/L 0.080 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.091 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.094 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.081 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.089 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.086 MG/L 0.080 mg/L 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 8 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Sunapee Water Works
PWSID NH2271010
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 1,511
Service connections 507
Systems serving this area 4
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Sunapee tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 16.00 ppb, 107% of the action level.
Does Sunapee 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 Sunapee? ▼
Sunapee Water Works (PWSID NH2271010), one of 4 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-11-06. No significant deficiencies were recorded.

What Should Sunapee 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.

Nearby Cities in New Hampshire

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