No health-based violations on EPA record since 2016.
Serves about 23,000 people (1,140 connections) with surface water from its own intake, and buys water from North Chicago.
From EPA's record for IL0975227. PurityMap is independent of Great Lakes Naval Training Station.
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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 August 2024 to May 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 | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| 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 | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| 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 | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| 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 | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| 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 | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| 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 | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| 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 | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-08-15 to 2025-05-08 | UCMR5 Analytical Results: GREAT LAKES NAVAL TRAINING STATION (IL0975227) |
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 →Great Lakes Naval Training Station's phone number on EPA record is 847-688-5395. Its mailing address is Naval Station Great Lakes, 310 Seabee Way, BLDG 1H, GREAT LAKES, IL 60088.
According to EPA's record, Great Lakes Naval Training Station uses surface water from its own intake, and buys water from North Chicago.
No health-based violations on EPA record since 2016. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Great Lakes Naval Training Station's latest lead and copper round, which ended in December 2025, was 0.8 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Great Lakes Naval Training Station. Its phone number on EPA record is 847-688-5395. Its mailing address on EPA record is Naval Station Great Lakes, 310 Seabee Way, BLDG 1H, GREAT LAKES, IL 60088. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.