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Water system · PWSID NH1031010

HAMPSTEAD AREA WATER

ATKINSON, NH · ~7,153 people served

Check your exact address → ATKINSON overview
50
Fair
PurityRadar safety score

PWSID

NH1031010

State

New Hampshire

City

ATKINSON

Population served

7,153

Primary source

SWP

Score history

▼ 50 points — the score moved from 100 to 50 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 50

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

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Aug 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

7.5 ppt

limit 4 ppt

Above EPA limit · 1.9×

PFOA

Perfluorooctanoic acid

5.9 ppt

limit 4 ppt

Above EPA limit · 1.5×

Lithium

17,200 ppt

limit —

No federal limit

PFBS

7.2 ppt

limit —

No federal limit

PFPeA

3.7 ppt

limit —

No federal limit

PFHxA

3.2 ppt

limit —

No federal limit

Violations & enforcement

43

Violations on record

0

Unaddressed

10

Health-based

82

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2023. Official EPA record →

Monitoring & reporting · Arsenic began Jan 2023 Resolved
Treatment technique · Lead & Copper Rule health-based began Nov 2020 Resolved
Reporting · Lead & Copper Rule began Nov 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2020 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2020 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2018 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2015 Resolved

Recent enforcement actions

  • State action · SIF May 2023
  • State action · SOX Apr 2023
  • State action · SIA Apr 2023
  • State action · SIE Apr 2023
  • State action · SOX Mar 2021
  • State action · SOX Mar 2021
  • State action · SOX Mar 2021
  • State action · SOX Mar 2021

This profile is built from EPA public records for system NH1031010 — 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.