No health-based violations on EPA record since 2016.
Serves about 16,300 people (2,555 connections) with groundwater bought from Honolulu Board of Water Supply (Windward-Pearl Harbor).
From EPA's record for HI0000356. PurityMap is independent of Marine Corps Base Hawaii.
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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 July 2024 to January 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 | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| 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 | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| 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 | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| 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 | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| 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 | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| 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 | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| 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 | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-15 to 2025-01-13 | UCMR5 Analytical Results: MARINE CORPS BASE HAWAII (HI0000356) |
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 →Marine Corps Base Hawaii's phone number on EPA record is 808-257-0800. Its mailing address is MARINE CORPS BASE HAWAII, ATTN: CODE LF; LEE YAMAMOTO, KANEOHE BAY, HI 96863-3002.
According to EPA's record, Marine Corps Base Hawaii uses groundwater bought from Honolulu Board of Water Supply (Windward-Pearl Harbor).
No health-based violations on EPA record since 2016. EPA also lists 3 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 Marine Corps Base Hawaii's latest lead and copper round, which ended in December 2021. The federal action level is 15 µg/L.
PurityMap has no verified website for Marine Corps Base Hawaii. Its phone number on EPA record is 808-257-0800. Its mailing address on EPA record is MARINE CORPS BASE HAWAII, ATTN: CODE LF; LEE YAMAMOTO, KANEOHE BAY, HI 96863-3002. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.