Lead pipes · Delaware
Lead pipes in Delaware
Lead pipes (EPA LCRR + RTI National Lead Pipe Map) data for ZIP codes in Delaware. Pick a ZIP below to dive into the lead pipes summary.
Last verified 2026-09-24 · methodology
What lands here
Not on zipradar yet. The plan is the utility's reported count of lead, galvanized-requiring-replacement and unknown-material lines. Until then, your water utility's service line inventory has them.
Source & refresh
EPA LCRR + RTI National Lead Pipe Map. Refreshed quarterly as state primacy agencies report. Primary source →
Delaware top concern
Sea-level rise, agricultural runoff
Delaware has the lowest mean elevation of any US state and FEMA NFHL coverage extends well inland in Sussex County. Agricultural runoff in poultry-heavy regions affects EPA SDWIS small-system nitrate readings. Lead-service-line inventories statewide are nearing 2024 LCRR baseline.
See Delaware state page for the full state-level rollup across all 12 dimensions.
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