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Facilities from the California Environmental Reporting System (CERS)

The California Environmental Reporting System was developed by CalEPA to support the reporting of information by regulated businesses and Certified Unified Program Agencies (CUPAs) pertaining to hazardous materials and hazardous waste throughout the state. This dataset is updated nightly from the CalEPA Regulated Site Portal. More information regarding this dataset can be found here.CalEPA Regulated Site PortalUpdated 10/4/2023.

Data files

Data title and descriptionAccess dataFile detailsLast updated

CSV

Download
CSV
08/12/25

Shapefile

DownloadZIP
08/12/25

GeoJSON

DownloadGEOJSON
08/12/25

KML

DownloadKML
08/12/25

File Geodatabase

DownloadZIP
08/12/25

Feature Collection

DownloadTXT
08/12/25

Supporting files

Data title and descriptionAccess dataFile detailsLast updated

ArcGIS Hub Dataset

HTML
08/12/25

ArcGIS GeoService

ARCGIS GEOSERVICES REST API
08/12/25

Excel

XLSX
08/12/25

GeoPackage

GPKG
08/12/25

SQLite Geodatabase

GDB
08/12/25

API endpoint

Dataset Name

Use the query web API to retrieve data with a set of basic parameters. Copy the API endpoint you need to start.

Usage documentation