No health-based violations on EPA record since 2016.
Serves about 8,700 people (180 connections) with groundwater from its own wells.
From EPA's record for MD0020042. PurityMap is independent of U.s. Naval Academy.
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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 2024 to August 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 12.1 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 | 2024-01-16 to 2024-07-16 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| 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 | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| 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 | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| 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 | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| 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 | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| 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 | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| 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 | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-16 to 2024-08-12 | UCMR5 Analytical Results: U.S. NAVAL ACADEMY (MD0020042) |
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 →U.s. Naval Academy's phone number on EPA record is 410-293-1046. Its mailing address is Naval Support Activity Annapolis, 181 Wainwright Road, ANNAPOLIS, MD 21402.
According to EPA's record, U.s. Naval Academy uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in U.s. Naval Academy's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for U.s. Naval Academy. Its phone number on EPA record is 410-293-1046. Its mailing address on EPA record is Naval Support Activity Annapolis, 181 Wainwright Road, ANNAPOLIS, MD 21402. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.