View EPA's public Lead Service Line Inventory dashboard for national/state/system-level reported line-material counts
domain: arcgis.com (EPA Office of Water-hosted dashboard) · 4 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Open the EPA Lead Service Line Dashboard at arcgis.com/apps/dashboards/623a18c8773b4f8383292ce3323ce6a7, which visualizes self-reported lead/GRR/unknown service line counts by community water system.
Filter or search by state or system name to view that system's reported line-material counts and compare them against neighboring systems or state totals.
Note that the dashboard is built on an EPA Office of Water-maintained ArcGIS layer sourced from EPA's Community Water Systems/ECHO data, distinct from the SDWIS Federal Reporting Services interface already covered elsewhere in this corpus.
Check the dashboard's 'last updated' note before treating any system's numbers as current, since utilities update inventories on their own cadence under the LCRR/LCRI compliance schedule.
Known gotchas
This is a read-only public dashboard/map, not a documented developer API — there is no published request schema beyond what the ArcGIS web app itself exposes; treat any underlying feature-layer JSON endpoint as undocumented and unsupported for third-party use.
Counts are system-reported estimates rolled up for public visualization, not independently verified per-address inventories — for a legally authoritative inventory of a specific address, the system's own published inventory (required under LCRR/LCRI) is the primary source, not this dashboard.
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