AndreaBozzo/ceres-open-data-index huggingface dataset:
Hazardous Waste Tracking System - Inactive Facilities

The Hazardous Waste Tracking System (HWTS) is the Department of Toxic Substances Control's data repository for hazardous waste Identification (ID) numbers and manifest information. Contained in this data is locational information for all inactive HWTS facilities, their types (Generator, Transporter or Treatment, Storage and Disposal), creation date, name and EPA ID. Updated 2026-07-14 05:37:31
CalEnviroScreen 5.0 Results

The Office of Environmental Health Hazard Assessment (OEHHA) has developed CalEnviroScreen (CES) 5.0, the latest iteration of the California Communities Environmental Health Screening Tool. This version of CES incorporates the most recent publicly available data for all indicators and improves the way some indicators are calculated to better reflect environmental conditions or a population’s vulnerability to environmental pollutants. Two new indicators—Small Air Toxic Sites and Diabetes Prevalence—were added to help capture additional environmental burdens and disease that contribute to pollution burden and population sensitivity to pollution. The indicator of Small Air Toxic Sites accounts for the presence of oil and gas wells and other sites reporting air toxic releases that are not already captured in the existing indicator of toxic releases. A Diabetes Prevalence indicator reflects sensitivity to pollution as exposure to pollution leads to worsening health outcomes for individuals with diabetes. This version of CES has been updated with additional information to incorporate pollution concerns in the California-Mexico border region, continuing the efforts to address Assembly Bill 1059 (Garcia, Statutes of 2015). For the latest iteration of CES, OEHHA partnered with community-based organizations (CBOs) to co-design key updates to the tool and to continue its commitment to meaningful community engagement. A [full report on the co-design process] and a [short overview report] summarizing changes and updates for CES 5.0 are available on the [CES 5.0 webpage] along with a [technical report] describing the changes and updates in more detail. To download data in different formats, visit the [CA Open Data Portal].
Tier 1 High Hazard Zones (HHZ)

This layer, in combination with Tier 2 High Hazard Zones, was used to generate the final Combined High Hazard Zones dataset. Tier 1 High Hazard Zones were last updated in 2020. Tier 1 High Hazard Zones are where tree mortality directly coincides with critical infrastructure. They pose a threat to life and property. CAL FIRE mapped Tier 1 High Hazard Zones by identifying assets to be protected as: communities, powerlines, roads, communication structures, and recreation facilities as well as miscellaneous other critical infrastructure. These assets to be protected were then buffered; communities were buffered by 1,000 feet and all other assets were buffered by 200 feet. Tree Mortality data was provided by the USDA Forest Service Forest Health Protection staff Aerial Detection Surveys from 2012-2015. Field review and revision was needed to refine and finalize HHZ areas. These zones were periodically updated to reflect new mortality or infrastructure assets at risk. ------- Emergency Declaration: On October 30, 2015 Governor Brown issued an emergency declaration requiring public agencies to identify areas of tree mortality that hold the greatest potential to result in wildfire and/or falling trees and threaten people and property in these areas. Once identified, these areas will be prioritized for removal of dead and dying trees that present a threat to public safety. [https://www.caloes.ca.gov/wp-content/uploads/Legal-Affairs/Documents/Proclamations/20151030-Tree_Mortality_State_of_Emergency.pdf]
California Incorporated City Boundaries

Complete accounting of all incorporated cities, including the boundary and name of each individual city. From 2009 to 2022 CAL FIRE maintained this dataset by processing and digitally capturing annexations sent by the state Board of Equalization (BOE). In 2022 CAL FIRE began sourcing data directly from BOE, in order to allow the authoritative department provide data directly. This data is then adjusted so it resembles the previous formats. Processing includes: • Clipping the dataset to traditional state boundaries • Erasing areas that span the Bay Area (derived from calw221.gdb) • Querying for incorporated areas only • Dissolving each incorporated polygon into a single feature • Calculating the COUNTY field to remove the word 'County' Version 25_2 is based on BOE_CityCounty_20250113, and includes all annexations present in BOE_CityAnx2023_20250113. Note: The Board of Equalization represents incorporated city boundaries as extending significantly into waterways, including beyond coastal boundaries. To see the representation in its original form please reference the datasets listed above. Note: The Board of Equalization represents incorporated city boundaries is extending significantly into waterways, including beyond coastal boundaries. To see the representation in its original form please reference the datasets listed above.
Jurisdictions

Complete accounting of all incorporated cities and unincorporated county areas, including the boundary and name of each individual jurisdictions. From 2009 to 2022 CAL FIRE maintained an incorporated city dataset by processing and digitally capturing annexations sent by the state Board of Equalization (BOE). In 2022 CAL FIRE began sourcing data directly from BOE in order to allow the authoritative department to provide data directly. This data is then adjusted so it resembles the previous formats. Processing includes: * Clipping the dataset to traditional state boundaries * Dissolving each polygon into a single feature * Calculating the County field to remove the word 'County' * Calculating the Jurisdiction field for unincorporated areas to include the county name and and '(Unincorporated)' * Adding and calculating a field to denote jurisdiction type Other aspects of the dataset, including overlapping topology and misalignment with county parcels, are generally accepted 'as-is,' and minimal effort has been made to correct them. Version 26_1 is based on BOE_CityCounty_20260330, and includes all annexations present in BOE_CityAnx2026_20260330. Note: The Board of Equalization represents jurisdictional boundaries as extending significantly into waterways, including beyond coastal boundaries. To see the representation in its original form please reference the datasets listed above.
FHSZSRA_23_3

The State Fire Marshal shall classify lands within state responsibility areas into fire hazard severity zones. Each zone shall embrace relatively homogeneous lands and shall be based on fuel loading, slope, fire weather, and other relevant factors present, including areas where winds have been identified by the department as a major cause of wildfire spread. The California laws and regulations that require Fire Hazard Severity Zones include California Public Resource code 4201-4204 and California Code of Regulations Title 19, Section 2201. Effective April 1, 2024 this regulatory adoption repeals Section 1280.1 of Title 14 California Code of Regulations and adopts similar regulatory provisions in Section 2201 of Title 19 California Code of Regulations. A prior version of this file and data was released as part of the data package accompanying the final Public Comment period for Fire Hazard Severity Zones (September 29, 2023). The previous version and this version are the same geographic representation of Fire Hazard Severity Zones and are now part of the formal regulation as adopted. While under normal workflow any revision to a public data file would get reflected in the filename, in this case the file name remains identical as it is part of the adopted regulation. The only changes reflect edits to the metadata describing timing of adoption and effective date for the regulation.
FHSZLRA25_v1_All

The State Fire Marshal shall classify lands within local responsibility areas into fire hazard severity zones. Each zone shall embrace relatively homogeneous lands and shall be based on fuel loading, slope, fire weather, and other relevant factors present, including areas where winds have been identified by the department as a major cause of wildfire spread. Under the purpose of fire safety and prevention, and by statutory authority, The State Fire Marshal shall classify lands within Local Responsibility Areas (LRA) into fire hazard severity zones. Each zone shall embrace relatively homogeneous lands and shall be based on fuel loading, slope, fire weather, and other relevant factors present, including areas where winds have been identified by the department as a major cause of wildfire spread. The California laws and regulations associated with Fire Hazard Severity Zones in LRA are found in California Government Code 51175-51189, and describe the objectives and and processes by which these data are developed, transmitted as a recommendation to local government agencies, and the subsequent required local ordinance adoption and documentation processes to see the zones finalized.
Biological Resources Inventory (BRI) Direct Observations - CDFW [ds2672]

The Biological Resources Inventory (BRI) consists of 17 related tables, covering biological groupings (fish, invertebrates, plants, terrestrial vertebrates and even habitats), properties, data sources, and survey types. For each biological grouping, there are two tables. One lists all the species within an organismal grouping expected to occur in California (or in the case of habitats, all the habitat types expected to occur in California). The other links to a given species (in its respective organismal grouping) or habitat from the first table with a property number, and in some cases, provides further information about such details as the abundance, season and survey type. As expected there is also a table that links the property numbers used throughout the database with the actual property name. Our research indicates that this list of property names and numbers may not be up to date, nor reflect the names and property numbers used in the current lands inventory (more information about the Lands Inventory is available from Sharon Taylor, Lands Program - [Sharon.Taylor@wildlife.ca.gov] or 916-323-7194). There are also several supporting tables that provide information about interpreting the codes used for abundance, season and survey type. While there are many entries in the BRI, most lack information about who, how, when and why they were obtained. We know data was collected from many sources and ranges in quality from first person direct observations made by CDFW personnel and partners, to regional bird and plant lists, to land management plans, to predicted occurrences from one of several nascent iterations of the California Wildlife Habitat Relationships program. Because of this variation, and our inability to understand the provenance or verify the accuracy of the data, we felt it prudent to only include the highest quality data from the BRI in the Biogeographic Information and Observation System (BIOS). This dataset is a subset of the information contained in the BRI database. It consists of direct observations made by CDFW staff or partners of fish, invertebrates, plants, terrestrial vertebrates and habitats from the BRI. While this is the best and likely most useful data contained in the BRI, we still have little supplemental information about the nature of these direct observations (date of observation, observer, reason for study or survey etc.), and as such urge the user to exercise caution in interpreting these data.
Blunt-Nosed Leopard Lizard Range - CWHR R019 [ds1726]

CWHR species range datasets represent the maximum current geographic extent of each species within California. Ranges were originally delineated at a scale of 1:5,000,000 by species-level experts more than 30 years ago and have gradually been revised at a scale of 1:1,000,000. Species occurrence data are used in defining species ranges, but range polygons may extend beyond the limits of extant occurrence data for a particular species. When drawing range boundaries, CDFW seeks to err on the side of commission rather than omission. This means that CDFW may include areas within a range based on expert knowledge or other available information, despite an absence of confirmed occurrences, which may be due to a lack of survey effort. The degree to which a range polygon is extended beyond occurrence data will vary among species, depending upon each species’ vagility, dispersal patterns, and other ecological and life history factors. The boundary line of a range polygon is drawn with consideration of these factors and is aligned with standardized boundaries including watersheds (NHD), ecoregions (USDA), or other ecologically meaningful delineations such as elevation contour lines. While CWHR ranges are meant to represent the current range, once an area has been designated as part of a species’ range in CWHR, it will remain part of the range even if there have been no documented occurrences within recent decades. An area is not removed from the range polygon unless experts indicate that it has not been occupied for a number of years after repeated surveys or is deemed no longer suitable and unlikely to be recolonized. It is important to note that range polygons typically contain areas in which a species is not expected to be found due to the patchy configuration of suitable habitat within a species’ range. In this regard, range polygons are coarse generalizations of where a species may be found. This data is available for download from the CDFW website: [https://www.wildlife.ca.gov/Data/CWHR]. The following data sources were collated for the purposes of range mapping and species habitat modeling by RADMAP. Each focal taxon’s location data was extracted (when applicable) from the following list of sources. BIOS datasets are bracketed with their “ds” numbers and can be located on CDFW’s BIOS viewer: [https://wildlife.ca.gov/Data/BIOS]. * California Natural Diversity Database, * Terrestrial Species Monitoring [ds2826], * North American Bat Monitoring Data Portal, * VertNet, * Breeding Bird Survey, * Wildlife Insights, * eBird, * iNaturalist, * other available CDFW or partner data.
Medi_Cal_FFS_Provider_Listing

The dataset provides basic information of the FFS providers enrolled in the Medi-Cal program as of March 16, 2026. The data was retrieved from the Provider Master File (PMF), which has been used in the claims payment process and maintained by the Provider Enrollment Division (PED). The Variables in the dataset include provider number, name, type, specialty, geographic information, etc. This dataset does not include the Managed Care providers.
Sacramento 2026 Roll Year

Tax rate area boundaries and related data based on changes filed with the Board of Equalization per Government Code 54900 for the specified assessment roll year. The data included in this map is maintained by the California State Board of Equalization and may differ slightly from the data published by other agencies. BOE_TRA layer = tax rate area boundaries and the assigned TRA number for the specified assessment roll year; BOE_Changes layer = boundary changes filed with the Board of Equalization for the specified assessment roll year; Data Table (C##_YYYY) = tax rate area numbers and related districts for the specified assessment roll year
Southern Sea Otter Range - CWHR M164a [ds3383]

CWHR species range datasets represent the maximum current geographic extent of each species within California. Ranges were originally delineated at a scale of 1:5,000,000 by species-level experts more than 30 years ago and have gradually been revised at a scale of 1:1,000,000. Species occurrence data are used in defining species ranges, but range polygons may extend beyond the limits of extant occurrence data for a particular species. When drawing range boundaries, CDFW seeks to err on the side of commission rather than omission. This means that CDFW may include areas within a range based on expert knowledge or other available information, despite an absence of confirmed occurrences, which may be due to a lack of survey effort. The degree to which a range polygon is extended beyond occurrence data will vary among species, depending upon each species’ vagility, dispersal patterns, and other ecological and life history factors. The boundary line of a range polygon is drawn with consideration of these factors and is aligned with standardized boundaries including watersheds (NHD), ecoregions (USDA), or other ecologically meaningful delineations such as elevation contour lines. While CWHR ranges are meant to represent the current range, once an area has been designated as part of a species’ range in CWHR, it will remain part of the range even if there have been no documented occurrences within recent decades. An area is not removed from the range polygon unless experts indicate that it has not been occupied for a number of years after repeated surveys or is deemed no longer suitable and unlikely to be recolonized. It is important to note that range polygons typically contain areas in which a species is not expected to be found due to the patchy configuration of suitable habitat within a species’ range. In this regard, range polygons are coarse generalizations of where a species may be found. This data is available for download from the CDFW website: [https://www.wildlife.ca.gov/Data/CWHR]. This sea otter range was constructed from the Annual California Sea Otter Census: 2019 Range Extent Shapefile: https://www.sciencebase.gov/catalog/item/5d85427ce4b0c4f70d086f23
Sea Otter Range - CWHR M164 [ds1946]

CWHR species range datasets represent the maximum current geographic extent of each species within California. Ranges were originally delineated at a scale of 1:5,000,000 by species-level experts more than 30 years ago and have gradually been revised at a scale of 1:1,000,000. Species occurrence data are used in defining species ranges, but range polygons may extend beyond the limits of extant occurrence data for a particular species. When drawing range boundaries, CDFW seeks to err on the side of commission rather than omission. This means that CDFW may include areas within a range based on expert knowledge or other available information, despite an absence of confirmed occurrences, which may be due to a lack of survey effort. The degree to which a range polygon is extended beyond occurrence data will vary among species, depending upon each species’ vagility, dispersal patterns, and other ecological and life history factors. The boundary line of a range polygon is drawn with consideration of these factors and is aligned with standardized boundaries including watersheds (NHD), ecoregions (USDA), or other ecologically meaningful delineations such as elevation contour lines. While CWHR ranges are meant to represent the current range, once an area has been designated as part of a species’ range in CWHR, it will remain part of the range even if there have been no documented occurrences within recent decades. An area is not removed from the range polygon unless experts indicate that it has not been occupied for a number of years after repeated surveys or is deemed no longer suitable and unlikely to be recolonized. It is important to note that range polygons typically contain areas in which a species is not expected to be found due to the patchy configuration of suitable habitat within a species’ range. In this regard, range polygons are coarse generalizations of where a species may be found. This data is available for download from the CDFW website: [https://www.wildlife.ca.gov/Data/CWHR]. This sea otter range was constructed from the Annual California Sea Otter Census: 2019 Range Extent Shapefile: https://www.sciencebase.gov/catalog/item/5d85427ce4b0c4f70d086f23
Vegetation - Sonoran Mojave Desert [ds3199]

California Department of Fish and Wildlife (CDFW) contracted Aerial Information Systems (AIS) to create a fine-scale vegetation map of portions of the Mojave Desert and Sonoran desert ecoregions that are not currently covered by existed fine-scale vegetation mapping, an area of 4,399,242 acres. The mapping area encompasses multiple counties including Inyo County, Riverside County and San Bernardino County. The minimum mapping unit (MMU) is 10 acres for desert types and 1 acre for non-desert types. For special stands including: wetlands, riparian, and rock outcrop; the mmu is 1 acres or ¼ for non-desert types. Landuse types had an mmu of 2.5 acres. Wash types were mapped with a 5 acre mmu. The vegetation map adheres to the 2008 National Vegetation Classification Standard (NVCS) and the Manual of California Vegetation (MCV). The project was conducted in 3 phases. Field Recon performed by CDFW, AIS, and CNPS. Accuracy assessments were performed by California Native Plant Society and Ironwood staff during 2025. The overall Fuzzy Accuracy Assessment score for the final vegetation map is 89.4 percent. The vegetation map was produced using 2022 NAIP imagery 60 cm and 2022 Hexagon 15 cm imagery. More information can be found in the project report here: [https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=245070]. The vegetation map is available for download here: [https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/3100_3199/ds3199.zip].
Conservation and Mitigation Banks [ds2782]

A conservation or mitigation bank is privately or publicly owned land managed for its natural resource values. In exchange for permanently protecting, managing, and monitoring the land, the bank sponsor is allowed to sell or transfer habitat credits to permitees who need to satisfy legal requirements and compensate for the environmental impacts of developmental projects. Conservation (Endangered Species) Banking A conservation bank generally protects threatened and endangered species and habitat. Credits are established for the specific sensitive species that occur on the site. Conservation banks help to consolidate small, fragmented sensitive species compensation projects into large contiguous preserves which have much higher wildlife habitat values. Other agencies that typically participate in the regulation and approval of conservation banks are the U.S. Fish and Wildlife Service and National Oceanic and Atmospheric Administration-National Marine Fisheries Service. Mitigation (Wetlands) Banking A mitigation bank protects, restores, creates, and enhances wetland habitats. Credits are established to compensate for unavoidable wetland losses. Use of mitigation bank credits must occur in advance of development, when the compensation cannot be achieved at the development site or would not be as environmentally beneficial. Mitigation banking helps to consolidate small, fragmented wetland mitigation projects into large contiguous preserves which will have much higher wildlife habitat values. Mitigation banks are generally approved by the California Department of Fish and Wildlife, U.S. Fish and Wildlife Service, the U.S. Army Corps of Engineers, and the U.S. Environmental Protection Agency.