No health-based violations on EPA record since 2016.
Serves about 17,000 people (260 connections) with surface water bought from City of Portsmouth.
From EPA's record for VA3740500. PurityMap is independent of Naval Support Activity Portsmouth.
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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 January 2025 to October 2025.
| 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 | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| 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 | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| 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 | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| 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 | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| 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 | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| 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 | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| 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 | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-28 to 2025-10-21 | UCMR5 Analytical Results: NAVAL SUPPORT ACTIVITY PORTSMOUTH (VA3740500) |
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 →Naval Support Activity Portsmouth's phone number on EPA record is 757-434-0646. Its mailing address is 601 Warrington Ave, 2nd Floor, Bldg 51 Room 204, PORTSMOUTH, VA 23709-1024.
According to EPA's record, Naval Support Activity Portsmouth uses surface water bought from City of Portsmouth.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Naval Support Activity Portsmouth's latest lead and copper round, which ended in December 2024, was 1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Naval Support Activity Portsmouth. Its phone number on EPA record is 757-434-0646. Its mailing address on EPA record is 601 Warrington Ave, 2nd Floor, Bldg 51 Room 204, PORTSMOUTH, VA 23709-1024. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.