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Thornton, NH Tap Water Quality 2026

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

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

Main Utility: White Mountain Resort/gateway PWSID: NH2342060 Updated: 2026 Q2
✅

No federal limits exceeded on record

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

B

Thornton earns a B for water quality

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

Lead: not reported
PFAS never sampled at this system
No violations since 2015
No violations currently open
Thornton'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
388
~86 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
None on record since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Action level: 15 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.

Contaminant Violations (2015–Present)

✓ No violations on record for this water system.
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

No violations are on record for this system since 2015. EPA records violations for every community water system, so this reflects a clean compliance history rather than missing data.

About the Main Water System

Utility White Mountain Resort/Gateway
PWSID NH2342060
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 388
Service connections 86
Systems serving this area 15
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Thornton tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Thornton 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 Thornton? ▼
White Mountain Resort/Gateway (PWSID NH2342060), one of 15 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-11-19. No significant deficiencies were recorded.

What Should Thornton 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

Lebanon, Nh Tap Water Quality 2026 Grafton Hanover, Nh Tap Water Quality 2026 Grafton Plymouth, Nh Tap Water Quality 2026 Grafton Littleton, Nh Tap Water Quality 2026 Grafton Bristol, Nh Tap Water Quality 2026 Grafton Bethlehem, Nh Tap Water Quality 2026 Grafton