Lead and Copper Rule (LCR) violations in Hawaii
6 active public water systems in Hawaii had a Lead and Copper Rule (LCR) violation in the past three years, 6 of them in the latest quarter of EPA's data. What Lead and Copper Rule (LCR) is and why it matters.
Systems with a Lead and Copper Rule (LCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
North Kona North Kona · Hawaii County |
29,581 | 1 | 1 | |
|
Lanai City Lanai · Maui County |
3,200 | 3 | 1 | |
|
Maunaloa-Kaluakoi Maunaloa, Molokai · Maui County |
1,000 | 1 | 1 | |
|
Kualapuu Kualapuu · Maui County |
500 | 1 | 1 | |
|
Kalaupapa Nhp Kalaupapa · Maui County |
110 | 1 | 1 | |
|
Kipu Haleakala · Maui County |
80 | 1 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Lead and Copper Rule (LCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule (LCR) alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Hawaii records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.