AndreaBozzo/ceres-open-data-index huggingface dataset:
Ambulatory Surgery - Diagnosis and External Cause Codes

This dataset contains statewide counts for every diagnosis, procedure, and external cause of injury/morbidity code reported on the ambulatory surgery data.  Diagnosis codes are reported using ICD-9-CM or ICD-10-CM.  External cause of injury/morbidity codes are reported using ICD-9-CM or ICD-10-CM.  ICD-10 replaced ICD-9, effective October 1, 2015.  Note: Physician-owned ambulatory surgery clinics do not report their data to HCAI and, therefore, are not included in the statewide frequencies.
Coast Range Newt Range - CWHR A007 [ds1136]

<div style='text-align:Left;'><div><div><p><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide. </span></p></div></div></div>
Mesocarnivore Photo Stations [ds26]

<div style='text-align:Left;'><div><div><p><span>This database was established to record furbearer and raptor presence through photographs taken at camera stations. The general study area where camera stations were placed included parts of Madera, Fresno, and Tulare counties. Coordinates for the camera station were recorded with Garmin 12xl or Gramin Rhino GPS receivers. Coordinates written in the shapefile .dbf of this data layer are in NAD27. Output of data in viewer has been converted to NAD83.</span></p></div></div></div>
Salmonid Population Monitoring Areas - California - CMP [ds3001] Extended Table

<div style='text-align:Left;'><div><div><p><span>The California Monitoring Plan (CMP) salmonid monitoring areas and associated population data are part of an ongoing effort to summarize existing and past salmonid monitoring efforts in the areas identified by Adams et al. 2011. These data are compiled and maintained by the California Department of Fish and Wildlife with the cooperation of monitoring practitioners. Updates and associated outreach are intended to occur on an annual basis. Data were created from several sources and existing datasets: some monitoring areas were accurately depicted using the USGS National Hydrography Dataset (NHD), other monitoring areas were approximated using the monitoring point location and the USGS StreamStats tool to depict the watershed area above that point. The areas are intended to represent the approximate extent of sampling within sub-basins, watershed areas, or regions. For example, the spatial extent of monitoring using a fixed count station is approximated by accounting for all anadromous fish habitat upstream of the sampling location. Therefore, the area is approximated by entering the monitoring location coordinates into the StreamStats tool. The resulting shapefile is then examined to ensure the watershed area did not include habitat above dams or barriers to migration. Areas were clipped when needed. The data user should recognize that errors may have occurred during production of this dataset, changes may have occurred to the external sources used post transfer, and for other possible reasons. The population metrics summarized in the associated tabular data may be regarded as spatially limited, temporally limited, and not considered a complete estimate for the population being described. The data user is advised to refer to the annual reports cited in the Source field from the tabular data for additional details regarding monitoring within the area spatially depicted.</span></p><p><span style='font-weight:bold;'>Abbreviation Definitions:</span><span> SGS = Spawning Ground Survey, RM = River Mile, RST = Rotary Screw Trap, RKM = River Kilometer, FCS = Fixed Count Station, STH = Steelhead, CC = Coastal Chinook, DS = Downstream</span></p></div></div></div>
Santa Cruz Black Salamander Range - CWHR A020 [ds1355]

<div style='text-align:Left;'><div><div><p><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide. </span></p></div></div></div>
Ensatina Range - CWHR A012 [ds1141]

<div style='text-align:Left;'><div><div><p style='margin:0 0 14 0;'><span><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.</span></span></p></div></div></div>
Large-Blotched Salamander Range - CWHR A012b [ds2847]

<div style='text-align:Left;'><div><div><p><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide. </span></p></div></div></div>
CAL FIRE Exemption Notices TA83

All Exemption Notices (EXs) of Timber Operations accepted by the California Department of Forestry &amp; Fire Protection. Operations are exempt from the plan preparation and submission requirements of PRC § 4581, and may be exempt from the completion report and stocking report requirements (PRC §§ 4585 and 4587) of the Forest Practice Act.  Public Utility and other Right-of-Way Exemptions are not included. See CAL FIRE Exemption Notices Right-of-Way for this data. Data set includes current year plus two preceding years. For previous years see data set CAL FIRE Exemption Notices Historical. <div><br /></div><div>To learn more about Exemptions, refer to 14 CCR §§ 1038 and 1104.1(a) in the <a href='https://bof.fire.ca.gov/regulations/bills-statutes-rules-and-annual-california-forest-practice-rules' rel='nofollow ugc' target='_blank'>California Forest Practice Rules</a>. Exemption Notices are subject to the rules of the year in which they were submitted. Examples of exemptions that are collected include: Christmas Tree, Dead, Dying, and Diseased, Drought Mortality, 150ft or 300ft Fire Hazard Trees removal, Forest Fire Prevention, Fuelwood split product, Less than three acre conversions, and Substantially Damaged Timberland, Post Fire Recovery. </div><div><br /></div><div>This data set is in the California Teale Albers NAD83 meters projection (TA83).<br /></div><div><br /></div><div>Link to the California Forest Practice Rules:</div><div>https://bof.fire.ca.gov/regulations/bills-statutes-rules-and-annual-california-forest-practice-rules</div><div><br /></div><div>For additional information on specific plans see the California Timber Regulation and Environmental Evaluation System (CalTREES): https://caltreesplans.resources.ca.gov/caltrees/Default.aspx<br /></div>
CAL FIRE Exemption Notices All TA83

All Exemption Notices (EXs) of Timber Operations accepted by the California Department of Forestry &amp; Fire Protection. Operations are exempt from the plan preparation and submission requirements of PRC § 4581, and may be exempt from the completion report and stocking report requirements (PRC §§ 4585 and 4587) of the Forest Practice Act.  Public Utility and other Right-of-Way Exemptions are not included. See CAL FIRE Exemption Notices Right-of-Way for this data. Data set includes current year plus two preceding years. For previous years see data set CAL FIRE Exemption Notices Historical. <div><br /></div><div>To learn more about Exemptions, refer to 14 CCR §§ 1038 and 1104.1(a) in the <a href='https://bof.fire.ca.gov/regulations/bills-statutes-rules-and-annual-california-forest-practice-rules' rel='nofollow ugc' target='_blank'>California Forest Practice Rules</a>. Exemption Notices are subject to the rules of the year in which they were submitted. Examples of exemptions that are collected include: Christmas Tree, Dead, Dying, and Diseased, Drought Mortality, 150ft or 300ft Fire Hazard Trees removal, Forest Fire Prevention, Fuelwood split product, Less than three acre conversions, and Substantially Damaged Timberland, Post Fire Recovery. </div><div><br /></div><div>This data set is in the California Teale Albers NAD83 meters projection (TA83).<br /></div><div><br /></div><div>Link to the California Forest Practice Rules:</div><div>https://bof.fire.ca.gov/regulations/bills-statutes-rules-and-annual-california-forest-practice-rules</div><div><br /></div><div>For additional information on specific plans see the California Timber Regulation and Environmental Evaluation System (CalTREES): https://caltreesplans.resources.ca.gov/caltrees/Default.aspx<br /></div>
Pacific Tailed Frog Range - CWHR A026 [ds1155]

<div style='text-align:Left;'><div><div><p style='margin:0 0 14 0;'><span><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.</span></span></p></div></div></div>
Medium and Heavy Duty Infrastructure

<p><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Medium- and heavy-duty (MDHD) zero-emission vehicle (ZEV) hydrogen refueling and charging station data was collected from the following agencies: California Air Resources Board (CARB), California Energy Commission (CEC), CALSTART Inc., California State Transportation Agency (CalSTA), California Department of Transportation (Caltrans), California Transportation Commission (CTC) and San Diego Gas &amp; Electric (SDGE).  “Chargers” (charging): Typically high-powered (150 kW or more) direct current fast chargers (DCFCs) for simultaneous charging at each location. “Dispensers” (hydrogen): Typically 700-bar dispensers for simultaneous refueling at each location. “Nozzles” (both charging/hydrogen): Connector that latches to the ZEV for charging or refueling.</span></p><p><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Following data fields are included:</span></p><p></p><ul><li><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Charging or Hydrogen: Whether the station is classified as charging or hydrogen</span></li><li><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Charger or Dispenser Count: Number of chargers for DCFC and number of dispensers for hydrogen</span></li><li><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Nozzle Count: Number of nozzles</span></li><li><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Address: Location of the station</span></li><li><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Latitude</span></li><li><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Longitude</span></li><li><span style='font-family:Arial, sans-serif; color:rgb(118, 113, 113);'>Funding Agencies: Agency/agencies that have provided funding for building the stations</span></li></ul>
Inyo Mountains Slender Salamander Range - CWHR A019 [ds1148]

<div style='text-align:Left;'><div><div><p style='margin:0 0 14 0;'><span><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.</span></span></p></div></div></div>
California Brown Pelican Range - CWHR B043a [ds3282]

<div style='text-align:Left;'><div><div><p style='margin:0 0 14 0;'><span><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.</span></span></p></div></div></div>
California's Groundwater Update 2025 (Bulletin 118)

California's Groundwater: Bulletin 118 Updates (CalGW Updates) are a continuing series of California's primary technical publications on groundwater resources in the state.  While the Department of Water Resources have previously published CalGW Updates, Water Code Section 12924 now mandates a 10-year publication cycle, effective 2025.

This page includes the publication of California's Groundwater: Bulletin 118 - Update 2025 (CalGW Update 2025), which the Department of Water Resources released on March 12, 2026. The publication contains:

+ Summary Highlights (available in English and Spanish) 
+ A detailed statewide report (Chapters 1 – 6), which features current knowledge of groundwater resources including information on the location, characteristics, use, management status, and conditions of the state’s groundwater
+ An info-graphic summary of the ten hydrologic regions, showing regional groundwater at a glance (Chapter 7)
+ Supporting resources including appendices, a factsheet (available in English and Spanish), a key topics index, and select datasets 

For more information on CalGW Updates, historical publications timeline, and supporting informational products that include the CalGW Live website and California’s Groundwater Semi-Annual Updates, please visit: https://water.ca.gov/programs/groundwater-management/bulletin-118. For questions or comments, please email CalGW@water.ca.gov.
Brandt's Cormorant Range - CWHR B046 [ds1404]

<div style='text-align:Left;'><div><div><p style='margin:0 0 14 0;'><span><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.</span></span></p></div></div></div>
Draft CalEnviroScreen 5.0

OEHHA is announcing the availability of draft CalEnviroScreen 5.0 for public comment. CalEnviroScreen is a mapping tool used to identify California communities disproportionately burdened by multiple sources of pollution.

The 5.0 draft update reflects the newest census tract geography, updates all existing indicators, and adds two new indicators. To view the updated maps and learn about the proposed changes, please visit the draft CalEnviroScreen 5.0 website. 

Get Involved: 

- Informational Webinar: We will hold an informational webinar on February 2, 2026, to provide information on the technical updates to CalEnviroScreen and how to get involved. Register for the webinar on Zoom.
- Public Workshops: Statewide and regional sessions will be held in February to share updates and gather feedback. Registration details will be shared soon at the link below.
- Public Comment Period: Written comments on the draft CalEnviroScreen 5.0 may be submitted until April 1, 2026.

Visit the Get Involved page for more details on these feedback opportunities and how to register. If you have additional questions, please contact CalEnviroScreen@oehha.ca.gov.