No open health-based violations on EPA record in the last 10 years.
Serves about 9,000 people (3,600 connections) with surface water from its own intake.
From EPA's record for NH0461010. PurityMap is independent of Claremont Water Dept.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From January 2025 | Interim Enhanced Surface Water Treatment Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from January 2023 to October 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 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 | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| 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 | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| 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 | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| 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 | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| 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 | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-10-10 | UCMR5 Analytical Results: CLAREMONT WATER DEPT (NH0461010) |
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.
Get PurityMap updates about this water system.
Follow this water →According to EPA's record, Claremont Water Dept uses surface water from its own intake.
EPA's record shows 1 health-based violation for Claremont Water Dept in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 2 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Claremont Water Dept'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 Claremont Water Dept. Its mailing address on EPA record is 8 GRANDVIEW ST, CLAREMONT, NH 03743. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.