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Lead pipes · Hawaii

Lead pipes in Hawaii

Lead pipes (EPA LCRR + RTI National Lead Pipe Map) data for ZIP codes in Hawaii. Pick a ZIP below to dive into the lead pipes summary.

Last verified 2026-05-13 · methodology

What lands here

Pages show the utility's reported count of lead, galvanized-requiring-replacement, and unknown-material lines, plus the state's reporting compliance status.

Source & refresh

EPA LCRR + RTI National Lead Pipe Map. Refreshed quarterly as state primacy agencies report. Primary source →

Hawaii top concern

Tsunami, lava-zone, water-source isolation

Hawaii's federated data is unusual: FEMA tsunami evacuation zones are state-managed alongside NFHL flood maps; Big Island lava-flow zones (USGS) overlay FEMA hazard layers. Each island operates independent water utilities, so EPA SDWIS PWSIDs do not aggregate across the state.

See Hawaii state page for the full state-level rollup across all 12 dimensions.

Read more on lead pipes

Editorial deep-dives explaining the source data, its limits, and how to read it.

5 Hawaii ZIPs