VerifiedAPI · ArcGIS

Statewide lead service line inventory map

Name: Statewide lead service line inventory map
Creator: California State Water Resources Control Board

Look up whether your water system reported lead, galvanized or unknown service lines (statewide: none lead; about 600,000 unknown).

Statewide lead service line inventory map is published by California State Water Resources Control Board for Los Angeles, California. It has an API (ArcGIS REST); its update schedule isn't stated, last updated 2026. Reuse: check terms. Check status: verified.

UpdatesNot stated

Last updated2026

ReuseCheck terms

Get itArcGIS REST

About this source

Publisher	California State Water Resources Control Board
Original	https://gispublic.waterboards.ca.gov/portal/apps/experiencebuilder/experience/?id=53f1ff6b98014598a4101de4ca9e54e9 ↗
Place	Los Angeles, California · state
Shelf	Water
Formats	Interactive map; ArcGIS REST
Update rate	not stated
Located by	Water system service area (polygon)
Licence	No use constraints stated on REST layer; no formal licence
Checked	Verified: opened and matched by a person or our reviewer

Cite this source: California State Water Resources Control Board, “Statewide lead service line inventory map”, https://gispublic.waterboards.ca.gov/portal/apps/experiencebuilder/experience/?id=53f1ff6b98014598a4101de4ca9e54e9, last updated 2026. Listed by SOS.city at https://sos.city/source/715 (verified).

Use it in your product

# ArcGIS REST: query the layer
curl "https://gispublic.waterboards.ca.gov/portalserver/rest/services/Hosted/SLiStatus/FeatureServer/0/query?where=1%3D1&outFields=*&resultRecordCount=5&f=json"

Endpoint as listed by the publisher.

# Through SOS.city: this source and its neighbours, with publisher, licence and check status
curl https://api.sos.city/v1/sources/715 -H "Authorization: Bearer sos_…"