No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2020.
Serves about 7,153 people (2,824 connections) with surface water bought from Salem Water Dept.
From EPA's record for NH1031010. PurityMap is independent of Hampstead Area Water.
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3 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From November 2020 | E. coli | – | – | Resolved |
| From July 2020 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Resolved |
| From July 2018 | Arsenic | 0.017 mg/L | 0.010 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2024 to August 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 26.9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorooctanesulfonic acid (PFOS) | 7.5 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorooctanoic acid (PFOA) | 7.2 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorobutanesulfonic acid (PFBS) | 7.2 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorohexanoic acid (PFHxA) | 5.1 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluoropentanoic acid (PFPeA) | 5 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-12 to 2024-08-14 | UCMR5 Analytical Results: HAMPSTEAD AREA WATER (NH1031010) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
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Follow this water →According to EPA's record, Hampstead Area Water uses surface water bought from Salem Water Dept.
EPA's record shows 3 health-based violations for Hampstead Area Water in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting July 2020. EPA also lists 8 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Hampstead Area Water's latest lead and copper round, which ended in December 2024, was 2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Hampstead Area Water. Its mailing address on EPA record is 54 SAWYER AVE, ATKINSON, NH 03811. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.