No health-based violations on EPA record since 2016.
Serves about 39,128 people (12,738 connections) with surface water bought from Trenton Water Works.
From EPA's record for NJ1103001. PurityMap is independent of Aqua NJ.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2025 to September 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) | 11.6 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorooctanesulfonic acid (PFOS) | 11.4 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Lithium | 27.5 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 | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorohexanesulfonic acid (PFHxS) | 10.4 ng/L | 10 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorohexanoic acid (PFHxA) | 5.4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluoroheptanoic acid (PFHpA) | 3.4 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluoropentanoic acid (PFPeA) | 4.6 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| 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 | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| 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 | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| 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 | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| 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 | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| 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 | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| 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 | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-09-03 | UCMR5 Analytical Results: AQUA NJ - HAMILTON SQUARE (NJ1103001) |
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 →Aqua NJ's phone number on EPA record is 609-618-3850. Its mailing address is 10 Black Forest Road, HAMILTON, NJ 08691.
According to EPA's record, Aqua NJ uses surface water bought from Trenton Water Works.
No health-based violations on EPA record since 2016. EPA also lists 22 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Aqua NJ's latest lead and copper round, which ended in December 2023. The federal action level is 15 µg/L.
PurityMap has no verified website for Aqua NJ. Its phone number on EPA record is 609-618-3850. Its mailing address on EPA record is 10 Black Forest Road, HAMILTON, NJ 08691. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.