OAKWOOD HEIGHTS

INTERVALE, NH · ~63 people served

Check your exact address → INTERVALE overview

100

Excellent

PurityRadar safety score

PWSID

NH0512170

State

New Hampshire

City

INTERVALE

Population served

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2018. Official EPA record →

Max contaminant level (MCL) · Combined radium-226/228 health-based began Oct 2017 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 1999 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jan 1994 Resolved

Monitoring & reporting · Nitrate began Jan 1994 Resolved

Monitoring & reporting · EPA contaminant 2976 began Jan 1994 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jan 1994 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jan 1994 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jan 1994 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jan 1994 Resolved

Monitoring & reporting · EPA contaminant 2969 began Jan 1994 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 1994 Resolved

Monitoring & reporting · EPA contaminant 2977 began Jan 1994 Resolved

Recent enforcement actions

State action · SOX Jun 2018
State action · SIF Dec 2017
State action · SIA Nov 2017
State action · SIE Nov 2017
State action · SOX May 2000
State action · SIE Oct 1999
State action · SIA Oct 1999
State action · SOX Jul 1996

This profile is built from EPA public records for system NH0512170 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.