Statewide regulatory data
Industrial stormwater registrations and impaired waters in one statewide view. Every record shown is official California State Water Resources Control Board data; geographic associations between facilities and impaired waters are derived and labeled as such.
Industrial stormwater records: Industrial General Permit permitted facilities (statewide GIS layer). Last imported: Aug 21, 2026, 1:57 AM UTC
Impaired waters: Final 2026 California Integrated Report (published cycle). Last imported: Aug 21, 2026, 12:44 AM UTC
Industrial stormwater records
19,703
Official IGP permitted-facility registrations statewide
Notices of Intent
8,756
Permit coverage filings · 9,143 No Exposure Certifications
Facilities associated with 303(d) waters
16,813
Derived geographic association — not confirmed discharge
Impaired waterbodies (303(d))
1,679
5,962 official 2026 listing decisions
Statewide view
Marker shading reflects the official permit application type. Facility detail loads only when a point is selected.
Information architecture
Facility registration
Official IGP record: facility, WDID, application type, location
Live production data
Industry classification
Primary SIC code and description as reported to the Water Boards
Live production data
Subwatershed context
USGS HUC12 subwatershed containing the official facility point
Live production data
Impaired receiving waters
Final 2026 Integrated Report geometry and listed pollutants
Live production data
Monitoring & compliance
SMARTS sampling and CIWQS enforcement — not yet ingested
Planned
19,623 of 19,703 facility points fall inside one of 4,473 official USGS HUC12 subwatersheds. Monitoring results, permit violations, and enforcement history are not part of this release.
Getting started
Five steps, or take the 90-second guided demo.
Search a facility by name or WDID, or explore the statewide map.
Review the facility's official Water Board registration record.
Review its SMARTS monitoring history in one place.
Examine derived NAL comparisons — not official determinations.
Review SMARTS TMDL requirements and 2026 303(d) impaired-water context, then follow the source links for the authoritative State record.