California Grants Portal Grant Awards 2023-2024
Per AB132 grantmakers are required to submit data about each awardee for grants that close on or after July 1, 2022. Visit the Glossary on https://www.grants.ca.gov/glossary to review post award data elements. You can view post award data at the bottom of the grant details page. Note that grantmakers may take up to one year to submit post award data. This grant award data is only for Fiscal Year 2023-2024.
California Grants Portal Grant Awards 2024-2025
Per AB132 grantmakers are required to submit data about each awardee for grants that close on or after July 1, 2022. Visit the Glossary on https://www.grants.ca.gov/glossary to review post award data elements. You can view post award data at the bottom of the grant details page. Note that grantmakers may take up to one year to submit post award data. This grant award data is only for Fiscal Year 2024-2025.
Hazardous waste identification (ID) numbers are issued by the U.S. Environmental Protection Agency (Federal EPA ID number) or by the Department of Toxic Substances Control (California State ID number). The ID number identifies each handler of hazardous waste on hazardous waste manifests and other paperwork. The ID number enables regulators to track the waste from its origin to final disposal, a process also referred to as “cradle to grave.” With a few exceptions, most hazardous waste generators must have an ID number before a registered hazardous waste transporter will accept their waste for shipment. All hazardous waste transporters and permitted treatment, storage, and disposal facilities (TSDFs) must have a hazardous waste ID number. For more information, please go to https://dtsc.ca.gov/hazardous-waste-id-numbers/.
California Department of Toxic Substances Control
California Department of Toxic Substances Control. Office of Environmental Information Management.
California Grants Portal- Grants Offered
The Grant Information Act of 2018 (Stats. 2018, Ch. 318) required the State Library to build one website by July 1, 2020, “that provides a centralized location … to find state grant opportunities.” State agencies provide all information on grants.ca.gov to the State Library for publication. The Grant Information Act requires state agencies to provide summaries of each of their grant or loan opportunities, including information about how to apply and links that grantseekers can follow for more details. *FYI* If you're not familiar with data.ca.gov, you can download the csv and find the API call by clicking on the "Explore" button below. *Note*: the data set updates every 24 hours at 8:45pm.
The power outages in this layer are pulled directly from the utility public power outage maps and is automatically updated every 15 minutes. This dataset represents only the most recent power outages and does not contain any historical data. The following utility companies are included: Pacific Gas and Electric (PG&E) Southern California Edison (SCE) San Diego Gas and Electric (SDG&E) Sacramento Municipal Utility District (SMUD) Layers included in this dataset: Power Outage Incidents - Point layer that shows data from all of the utilities and is best for showing a general location of the outage and driving any numbers in dashboards. Power Outage Areas - Polygon layer that shows rough power outage areas from PG&E only (They are the only company that feeds this out publicly). With in the PG&E territory this layer is useful to show the general area out of power. The accuracy is limited by how the areas are drawn, but is it good for a visual of the impacted area. Power Outages by County - This layer summaries the total impacted customers by county. This layer is good for showing where outages are on a statewide scale. If you have any questions about this dataset please email GIS@caloes.ca.gov
Cumulative Statewide Power Outages Public View
California Crash Reporting System (CCRS)
Statistic crash records within State of California
California Highway Patrol - Information Technology Section
Surface Water - Freshwater Harmful Algal Blooms
Freshwater harmful algal bloom (HAB) data from the Freshwater Harmful Algal Bloom (FHAB) data system. The FHAB data system is the California State Water Resources Control Board's data system for data and information voluntarily reported to the agency. Bloom reports are voluntary reports submitted by the public or organization to identify a POTENTIAL HAB for evaluation. Bloom Reports may or may not include a report that is confirmed to be a HAB, regardless, all bloom reports are published. Due to the voluntary basis of information and data included in the database, data and information may include: waterbody name and location, potential algal bloom location and observed characteristics, observed field observations and/or analytical sampling results, waterbody and/or land management, general information, recommended advisory status (if any), and updates regarding bloom status. Refer to Data Dictionary and Data Disclaimer for additional information about this dataset. Please visit the Water Boards FHABS web site for more information and data visualizations https://mywaterquality.ca.gov/habs/index.html.
Surplus Land Act Notices of Availability Received
Notices of Availability of surplus locally owned land and description of each site/parcel. Notices are submitted to HCD by local public agencies (includes cities, counties, special districts, and certain other entities) disposing of land as per AB1486, pursuant to Government Code Section 54221. Data is self-reported by the local public agency. HCD does not independently verify information reported by agencies in their Notices of Availability.
This feature service is an aggregation of multiple California County Evacuation Zone services that are being refreshed every 10 minutes. The schema used mirrors the Zonehaven (now Genysys) Schema. This service is fully updated every 10 minutes from county sources. During the update, there may be a brief period (~1 min) where the service is rebuilding and not all features are visible. Updated Frequency: 10 minutes Contact: gissupport@caloes.ca.gov Symbology Status Color Hex Value Color Name Color Description NORMAL #FFFFFF White No active public safety incidents. EVACUATION WARNING #E5C447 Yellow Potential threat to life and/or property. Those who require additional time to evacuate, and those with pets and livestock should leave now. EVACUATION ORDER #D37072 Red Immediate threat to life. This is a lawful order to leave now. The area is lawfully closed to public access. Inventory of Counties whose Evacuation Order information is publicly shared by Cal OES through the California Active Evacuation Zones feature service.
CA Governor's Office of Emergency Services
This Well Completion Report dataset represents an index of records from the California Department of Water Resources' (DWR) Online System for Well Completion Reports (OSWCR). This dataset is for informational purposes only. All attribute values should be verified by reviewing the original Well Completion Report. Known issues include: - Missing and duplicate records - Missing values (either missing on original Well Completion Report, or not key entered into database) - Incorrect values (e.g. incorrect Latitude, Longitude, Record Type, Planned Use, Total Completed Depth) - Limited spatial resolution: The majority of well completion reports have been spatially registered to the center of the 1x1 mile Public Land Survey System section that the well is located in.
california department of water resources
DWR Airborne Electromagnetic (AEM) Surveys Data
#Statewide AEM Surveys Project Overview The Department of Water Resources’ (DWR’s) Statewide Airborne Electromagnetic (AEM) Surveys Project is funded through California’s Proposition 68 and the General Fund. The goal of the project is to improve the understanding of groundwater aquifer structure to support the state and local goal of sustainable groundwater management and the implementation of the Sustainable Groundwater Management Act (SGMA). During an AEM survey, a helicopter tows electronic equipment that sends signals into the ground which bounce back. The data collected are used to create continuous images showing the distribution of electrical resistivity values of the subsurface materials that can be interpreted for lithologic properties. The resulting information will provide a standardized, statewide dataset that improves the understanding of large-scale aquifer structures and supports the development or refinement of hydrogeologic conceptual models and can help identify areas for recharging groundwater. DWR collected AEM data in all of California’s high- and medium-priority groundwater basins, where data collection is feasible. Data were collected in a coarsely spaced grid, with a line spacing of approximately 2-miles by 8-miles. AEM data collection started in 2021 and was completed in 2023. Additional information about the project can be found on the [Statewide AEM Survey website](https://water.ca.gov/Programs/SGMA/AEM "Statewide AEM Survey website"). See the publication below for an overview of the project and a preliminary analysis of the AEM data. DWR continues to collect data and has developed tools to utilize the Statewide AEM Survey data under the [Basin Characterization Program](https://water.ca.gov/Programs/Groundwater-Management/Bulletin-118/Basin-Characterization "Basin Characterization Program"). Visit the [Basin Characterization Program Open Data Portal page](https://data.cnra.ca.gov/dataset/dwr-basin-characterization "Basin Characterization Program Open Data Portal page") to access tools, datasets, and resulting maps and models. ## [California’s Statewide Airborne Electromagnetic Surveys and Preliminary Hydrogeologic Interpretations](https://www.conservation.ca.gov/cgs/documents/publications/california-geology-magazine/CG_2024-AEMsurveys.pdf "California’s Statewide Airborne Electromagnetic Surveys and Preliminary Hydrogeologic Interpretations") # Survey Areas AEM data are being collected in groups of groundwater basins, defined as a Survey Area. See Survey Area Map for groundwater subbasins within a [Survey Area](https://data.cnra.ca.gov/dataset/aem/resource/a6286b07-5597-49e6-9cac-6a3a98b904df "Survey Area"): + Survey Area 1: 180/400 Foot Aquifer (partial), East Side (partial), Upper Valley, Forebay Aquifer, Paso Robles, Atascadero (limited), Adelaida (limited), Cuyama Valley. + Survey Area 2: Scott River Valley, Shasta Valley, Butte Valley, Tulelake, Fall River Valley (limited), Big Valley (Modoc/Lassen County). + Survey Area 3: Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, Sonoma Valley. + Survey Area 4: White Wolf, Kern County, Tulare Lake, Tule, Kaweah. + Survey Area 5: Pleasant Valley, Westside, Kings, Madera, Chowchilla, Merced, Turlock, Modesto, Delta-Mendota + Survey Area 6: Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, Solano, Livermore, South American, North American, Yolo, Sutter, South Yuba, North Yuba + Survey Area 7: Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope, Bowman, Bend, Millville, South Battle Creek, Anderson, Enterprise, Eel River, Sierra Valley + Survey Area 8: Seaside, Monterey, 180/400 (partially surveyed Summer 2021), Eastside (partially surveyed Summer 2021), Langley, Pajaro, Santa Cruz Mid-County, Santa Margarita, San Benito, and Llagas (partial). + Survey Area 9: Basin Characterization Pilot Study 1 - Madera and Kings. + Survey Area 10: San Antonio Creek Valley, Arroyo Grande, Santa Maria, San Luis Obispo, Los Osos Area, Warden Creek, Chorro Valley (limited), Morro Valley (limited) + Survey Area 11: Indian Wells Valley, Rose Valley, Owens Valley, Fish Slough, Indio, Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited),Chocolate Valley (limited), Borrego Springs, and San Jacinto # Data Reports Data reports detail the AEM data collection, processing, inversion, interpretation, and uncertainty analyses methods and procedures. Data reports also describe additional datasets used to support the AEM surveys, including digitized lithology and geophysical logs. Multiple data reports may be provided for a single Survey Area, depending on the Survey Area coverage. # Data Availability and Types All data collected as a part of the Statewide AEM Surveys will be made publicly available, by survey area, approximately six to twelve months after individual surveys are complete (depending on survey area size). Datasets that will be publicly available include: ### AEM Datasets + Flown Survey Lines + Raw AEM Data + Processed AEM Data + Inverted AEM Data + Inverted AEM Data Uncertainty Analysis + Interpreted AEM Data (for coarse fraction) + Interpreted AEM Data Uncertainty Analysis ### Supporting Datasets + [Digitized Lithology and Geophysical Logs](https://data.cnra.ca.gov/dataset/aem/resource/ae1bd8fb-f644-488e-9706-2f3ea2a36d17 "Digitized Lithology and Geophysical Logs") ### [NEW! Summary of revisions to digitized lithology and geophysical logs (1/14/2026)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "NEW! Revisions to digitized lithology and geophysical logs (1/14/2026)") #AEM Data Viewers DWR has developed AEM Data Viewers to provides a quick and easy way to visualize the AEM electrical resistivity data and the AEM data interpretations (as texture) in a three-dimensional space. The most recent data available are shown, which my be the provisional data for some areas that are not yet finalized. The Data Viewers can be accessed by direct link, below, or from the [Data Viewer Landing Page](https://data.cnra.ca.gov/dataset/aem/resource/29c4478d-fc34-44ab-a373-7d484afa38e8 "Data Viewer Landing Page"). + [CalGW Subsurface Viewer](https://subsurfaceviewer.water.ca.gov/ "CalGW Subsurface Viewer"): Provides a map, 2D profile, and 3D view of the Statewide AEM Survey electrical resistivity and coarse fraction data, along with lithology logs. The map dynamically shows the exact location of AEM data displayed. + [SGMA Data Viewer (Basin Characterization tab)](https://sgma.water.ca.gov/webgis/?appid=SGMADataViewer#basincharacter "SGMA Data Viewer (Basin Characterization tab)"): Displays AEM data profile images along flight lines and AEM data depth slices in map view. + [3D AEM Data Viewer](https://dwr.maps.arcgis.com/apps/instant/3dviewer/index.html?appid=f781b14f42ab45e5b72f32cf07af899c "3D AEM Data Viewer"): Displays the Statewide AEM Survey electrical resistivity and coarse fraction data, along with lithology logs, in a three-dimensional space. #AEM Depth Slice and Shallow Subsurface Average Maps As a part of DWR’s upcoming Basin Characterization Program, DWR will be publishing a series of maps and tools to support advanced data analyses. The first of these maps have now been published and provide analyses of the Statewide AEM Survey data to support the identification of potential recharge areas. The maps are located on the SGMA Data Viewer (under the Hydrogeologic Conceptual Model tab) and show the AEM electrical resistivity and AEM-derived texture data as the following: + Shallow Subsurface Average: Maps showing the average electrical resistivity and AEM-derived texture in the shallow subsurface (the top approximately 50 feet below ground surface). These maps support identification of potential recharge areas, where the top 50 feet is dominated by high resistivity or coarse-grained materials. + Depth Slices: Depth slice automations showing changes in electrical resistivity and AEM-derived texture with depth. These maps aid in delineating the geometry of large-scale features (for example, incised valley fills). Shapefiles for the formatted AEM electrical resistivity data and AEM derived texture data as depth slices and the shallow subsurface average can be downloaded here: + [Electrical Resistivity Depth Slices and Shallow Subsurface Average Maps](https://data.cnra.ca.gov/dataset/aem/resource/7d115ac3-d7b8-47fa-ab8b-a078b2525bbe "Electrical Resistivity Depth Slices and Shallow Subsurface Average Maps") + [Texture Interpretation (Coarse Fraction) Depth Slices and Shallow Subsurface Average Maps](https://data.cnra.ca.gov/dataset/aem/resource/0952506a-1ad8-4c04-9372-ded45148e6a6 "Texture Interpretation (Coarse Fraction) Depth Slices and Shallow Subsurface Average Maps") #Technical Memos Technical memos are developed by DWR's consultant team (Ramboll Consulting) to describe research related to AEM survey planning or data collection. Research described in the technical memos may also be formally published in a journal publication. + [AEM Test Flights to Evaluate the Bias Signal Caused by Vineyard Trellises Containing Metal](https://data.cnra.ca.gov/dataset/aem/resource/42e5798e-c633-4a7a-8398-fc96c2afaced "AEM Test Flights to Evaluate the Bias Signal Caused by Vineyard Trellises Containing Metal") + [SkyTEM Instrument Comparison for Airborne EM](https://data.cnra.ca.gov/dataset/aem/resource/d38f1284-71f3-45e3-9af5-676ebe22f61b "SkyTEM Instrument Comparison for Airborne EM") #2018-2020 AEM Pilot Studies [Three AEM pilot studies](https://data.cnra.ca.gov/dataset/aem-pilot-studies "Three AEM pilot studies") were conducted in California from 2018-2020 to support the development of the Statewide AEM Survey Project. The AEM Pilot Studies were conducted in the Sacramento Valley in Colusa and Butte county groundwater basins, the Salinas Valley in Paso Robles groundwater basin, and in the Indian Wells Valley groundwater basin. #Provisional Statement Data Reports and datasets labeled as *provisional* may be incomplete and are subject to revision until they have been thoroughly reviewed and received final approval. *Provisional* data and reports may be inaccurate and subsequent review may result in revisions to the data and reports. Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences.
This dataset is a catalog of all the datasets available on the CalHHS Open Data Portal. Each item in the catalog represents a dataset and includes the associated metadata and additional information.
california health and human services agency
Show sum of units reported on the annual progress report, Tables A and A3 (2013-2017) and Table A2 (since 2018). HCD is transitioning to a new database system; the bi-weekly updates for this dataset will continue in late 1st quarter 2025.
California requires that all local governments (cities and counties) adequately plan to meet the housing needs of everyone in the community. California’s local governments meet this requirement by adopting housing plans as part of their “general plan”. General plans serve as the local government’s "blueprint" for how the city and/or county will grow and develop and include eight elements: land use, transportation, conservation, noise, open space, safety, environmental justice, and housing. The Housing Element Compliance Report provides current Housing Element Compliance Status. Additional information about Housing Elements can be found on HCD’s website here: https://www.hcd.ca.gov/planning-and-community-development/housing-elements.
Housing Element Annual Progress Report (APR) Data by Jurisdiction and Year
Government Code section 65400 requires that each city, county, or city and county, including charter cities, prepare an annual progress report (APR) on the status of the housing element of its general plan and progress in its implementation. This dataset includes information reported to the Department of Housing and Community Development (HCD) by local jurisdictions on their APR form. Additional information about annual progress reports (APR), including the form, instructions, and definition can be found on HCD’s website here: https://www.hcd.ca.gov/planning-and-community-development/annual-progress-reports.
Central Valley Water Board E. coli Monitoring Results
__Draft__ - E. coli monitoring results from the Central Valley Regional Water Quality Control Board. _E. coli_ is a type of bacteria used to indicate fecal pollution and the possible presence of pathogens in the water. The data is sourced from the Central Valley Regional Water Board - Lower American River Recreational Water Quality map (https://arcg.is/0ea0zq). All data are draft unless otherwise noted.
Surface Water Ambient Monitoring Program
Surface Water - Fecal Indicator Bacteria Monitoring Results
This dataset contains fecal indicator bacteria (FIB) monitoring results collected from surface waters across California. It includes results for _Escherichia coli_ (E. coli), enterococci, fecal coliforms, and total coliforms - key indicators used to assess microbial water quality and potential health risks associated with recreational water use. The data has been cleaned and standardized to ensure consistency and usability. For each valid data point, the dataset also includes calculated 6-week and 30-day geometric means, which are commonly used to evaluate long-term water quality trends and compliance with bacteria water quality objectives. Some records are excluded from the final dataset during processing. These typically include duplicate or replicate results, records with missing or invalid result values, or any data that cannot be used to calculate a geometric mean. These records are saved to the "Excluded Records" data resource. This dataset serves as the primary data source for the Water Boards My Water Quality Portal [Safe to Swim Map](https://mywaterquality.ca.gov/safe-to-swim/content/interactive_map/index.html), which provides the public with timely information about potential health risks associated with water contact recreation at monitored sites. Data is sourced from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN) database, BeachWatch database, and the Central Valley Water Board [Lower American River Recreational Water Quality Map](https://experience.arcgis.com/experience/47e27f245e044ac2a8e15083307e75f6/?draft=true&org=waterboards). There is some overlap with the [CEDEN Water Chemistry dataset](https://data.ca.gov/dataset/surface-water-chemistry-results). Both portal datasets draw from the same source, but the resources here are updated more frequently to support the Safe to Swim map.
DWR has a long history of studying and characterizing California’s groundwater aquifers as a part of [California’s Groundwater (Bulletin 118)](https://water.ca.gov/Programs/Groundwater-Management/Bulletin-118 "California’s Groundwater (Bulletin 118)"). [California's Groundwater Basin Characterization Program](https://water.ca.gov/Programs/Groundwater-Management/Bulletin-118/Basin-Characterization "California's Groundwater Basin Characterization Program") provides the latest data and information about California’s groundwater basins to help local communities better understand their aquifer systems and support local and statewide groundwater management. Under the Basin Characterization Program, new and existing data (AEM, lithology logs, geophysical logs, etc.) are integrated to create continuous maps and three-dimensional models. To support this effort, new data analysis tools have been developed to create texture models, hydrostratigraphic models, and aquifer flow parameters. Data collection efforts have been expanded to include advanced geologic, hydrogeologic, and geophysical data collection and data digitization and quality control efforts will continue. To continue to support data access and data equity, the Basin Characterization Program has developed new online, GIS-based, visualization tools to serve as a central hub for accessing and exploring groundwater related data in California. Additional information can be found on the [Basin Characterization Program webpage](https://water.ca.gov/Programs/Groundwater-Management/Bulletin-118/Basin-Characterization "Basin Characterization Program webpage"). #DWR's Evaluation of Groundwater Resources ## Maps and Models DWR is undertaking local, regional, and statewide investigations to evaluate California's groundwater resources and develop state-stewarded maps and models. New and existing data have been combined and integrated using the analysis tools described below to develop maps and models that describe grain size, the hydrostratigraphic properties, and hydrogeologic conceptual properties of California’s aquifers. These maps and models help groundwater managers understand how groundwater is stored and moves within the aquifer. The models will be state-stewarded, meaning that they will be regularly updated, as new data becomes available, to ensure that up-to-date information is used for groundwater management activities. The first iterations of the following maps and models will be published as they are developed: + Texture Models + Hydrostratigraphic Models + Aquifer Recharge Potential Maps + Extent of Important Aquifer Units + Depth to Basement + Depth to Freshwater Click on the link below for each local, regional, or statewide investigation to find the following datasets. ##Local Investigations + [Madera & North Kings](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/8400c923-e18d-4ac5-958b-82f88e5af4f8 "Madera & North Kings"): AEM data collection, lithology log digitization, texture model development, aquifer recharge potential mapping analysis. + [Pajaro](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/043aaa87-5c5d-433e-9afe-80f6966ca3ad "Pajaro"): AEM and tTEM data collection + [Western San Joaquin Valley](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c2633b9c-cd34-445b-ac2d-4a5b49eb881d "Western San Joaquin Valley"): AEM data collection, lithology and geophysical log data digitization, texture model development. + [Prospect Island](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/b96e8832-d8af-416e-abcd-9240f7fb33d4 "Prospect Island"): AEM data collection, FloaTEM data collection test. ##Regional Investigations + [Sacramento Valley](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/fed9f9dd-fd0d-4ef6-a21b-a8835404b3c6 "Sacramento Valley"): AEM data collection, texture model development, aquifer recharge potential mapping analysis. + [Four County Area of San Joaquin Valley (Madera, Fresno, Kings, and Tulare counties) ](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/a19efaf7-c0c0-4816-bcdc-1c1010a38ab3 "Four County Area of San Joaquin Valley (Madera, Fresno, Kings, and Tulare counties) "): AEM data collection, data digitization, texture model development, hydrogeologic conceptual model development, clay delineation, subsidence potential and mitigation, and aquifer recharge potential mapping analysis. + [San Joaquin Valley](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/19ea1234-6545-41c9-aeb2-f655d6599286 "San Joaquin Valley"): AEM data collection, data digitization, texture model development, hydrogeologic conceptual model development, clay delineation, subsidence potential and mitigation, and aquifer recharge potential mapping analysis. ##Statewide Investigations + [Statewide AEM Surveys](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c9297796-80fb-4a0c-9464-5ec7a12c24bf "Statewide AEM Surveys"): AEM data collection, geophysical and lithology log data digitization. # Data Collection & Compilation As a part of the Basin Characterization Program, advanced geologic, hydrogeologic, and geophysical data will be collected to improve our understanding of groundwater basins. Data collected under Basin Characterization are collected at a local, regional, or statewide scale depending on the scope of the study. Advanced data collection methods include: + Airborne electromagnetics (AEM) + All-terrain vehicle towed electromagnetics (tTEM) + Watercraft towed electromagnetics (FloaTEM) + Geophysical borehole logging ## Digitized Existing Lithology and Geophysical Logs Lithology and geophysical logging data have been digitized to support the Statewide AEM Survey Project and will continue to be digitized to support Basin Characterization efforts. All digitized lithology logs with Well Completion Report IDs will be imported back into the OSWCR database. Digitized lithology and geophysical logging can be found under the following resource: + [Digitized Lithology and Geophysical Logs](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/942aa75e-8727-4e12-84a6-280b5896f3b0 "Digitized Lithology and Geophysical Logs"). #Analysis Tools and Process Documents To develop the state-stewarded maps and models outlined above, new tools and process documents have been created to integrate and analyze a wide range of data, including geologic, geophysical, and hydrogeologic information. By combining and assessing various datasets, these tools help create a more complete picture of California's groundwater basins. All tools, along with guidance documents, are made publicly available for local groundwater managers to use to support development of maps and models at a local scale. All tools and guidance will be updated as revisions to tools and process documents are made. All tools developed under the Basin Characterization Program are listed below and are summarized on the [Analysis Tools and Process Documents](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/ffcfe414-9221-4ddd-970c-40e83c65909b "Analysis Tools and Process Documents") landing page. ##Data Analysis Tools + [Data2Texture](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/91b11192-9867-4020-82f0-df795d6eb7b4 "Data2Texture"): Data2Texture is an advanced spatial data interpolation tool for estimating the distribution of sediment textures from airborne electromagnetic data and lithology logs to create a 3D texture model + [Data2HSM - Smart Interpretation](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/a00585a3-d330-41b1-aeba-f450526596b9 "Data2HSM - Smart Interpretation"): Data2HSM via Smart Interpretation (SI) is a semi-automatic Python tool for delineating continuous hydrogeologic surfaces from airborne electromagnetic data products. + [Data2HSM - Gaussian Mixture Model](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/14a82d4c-c6f7-4d13-8189-91cada79f867 "Data2HSM - Gaussian Mixture Model"): The Data2HSM via Gaussian Mixture Model tool ingests the AEM data and groups the data into a user-specified number of clusters that are interpreted as stratigraphic units in the hydrostratigraphic model (HSM) + [Data2HSM - Geological Pseudolabel Deep Neural Network](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/ab9d4d5b-0c7a-4374-a3bc-1ad6f1c25621 "Data2HSM - Geological Pseudolabel Deep Neural Network"): The GeoPDNN (Geological Pseudolabel Deep Neural Network) is a semi-supervised machine learning tool that integrates lithologic well logs and AEM data into plausible stratigraphic surfaces. + [Texture2Par V2](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/ef60d3ee-91d3-40cc-9455-5b9775993ee5 "Texture2Par V2"): Texture2Par V2 is a groundwater model pre-processor and parameterization utility developed to work with the IWFM and MODFLOW families of hydrologic simulation code. ##Process Documents + [Aquifer Recharge Potential Mapping](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/7d33d618-38bc-4511-834c-6e791695f8e2 "Aquifer Recharge Potential Mapping"): The Aquifer Recharge Potential (ARP) Mapping Process Document provides a framework for identifying locations that have relatively higher potential for managed aquifer recharge. #Data Visualization Data access equity is a priority for the Basin Characterization Program. To ensure data access equity, the Basin Characterization Program has developed applications and tools to allow data to be visualized without needing access to expensive data visualization software. This list below provides links and descriptions for the Basin Characterization's suite of data viewers. [SGMA Data Viewer: Basin Characterization tab](https://sgma.water.ca.gov/webgis/?appid=SGMADataViewer#basincharacter "SGMA Data Viewer: Basin Characterization tab"): Provides maps, depth slices, and profiles of Basin Characterization maps, models, and datasets, including the following: + Aquifer Recharge Potential Maps + Subsurface Texture Model Depth Slices + Statewide AEM Survey Texture Depth Slices + Lithology Log Location Maps + Geophysical Logs Location Maps + Statewide AEM Survey Profile Images [California's Groundwater Subsurface Viewer](https://sgma.water.ca.gov/subsurfaceviewer "California's Groundwater Subsurface Viewer"): Provides a map view and profile view of the Statewide AEM Survey electrical resistivity and coarse fraction data, along with lithology logs. The map view dynamically shows the exact location of AEM data displayed. [3D AEM Data Viewer](https://dwr.maps.arcgis.com/apps/instant/3dviewer/index.html?appid=f781b14f42ab45e5b72f32cf07af899c "3D AEM Data Viewer"): Displays the Statewide AEM Survey electrical resistivity and coarse fraction data, along with lithology logs, in a three-dimensional space. #Basin Characterization Exchange The Basin Characterization Exchange (BCX) is a meeting series and network space for the Basin Characterization community to exchange ideas, share lessons learned, define needed guidance, and highlight research topics. The BCX is open to federal, state, and local agencies, consultants, NGOs, academia, and interested parties who participate in Basin Characterization efforts. The BCX also plays a pivotal role in advancing the Basin Characterization Program’s activities and goals. BCX meetings will include regular updates from the Basin Characterization Program and participants can provide feedback and recommendations. Participants will also be provided with early opportunities to test data analysis tools and submit comments on draft process and guidance documents. BCX meetings are (generally) held the 3rd Tuesday of the month from 12:30 - 1:30 pm (PST). [Join the BCX listserv](https://forms.office.com/g/VgNif0iEuE "Join the BCX listserv") to become a BCX member and receive meeting registration emails. Check the [BCX Hub](https://cadwr.box.com/v/BasinCharacterizationExchange "BCX Hub") for the upcoming schedule and past meeting materials.
COVID-19 Vaccine Progress Dashboard Data
__Note__: In these datasets, a person is defined as up to date if they have received at least one dose of an updated COVID-19 vaccine. The Centers for Disease Control and Prevention (CDC) recommends that certain groups, including adults ages 65 years and older, receive additional doses. On 6/16/2023 CDPH replaced the booster measures with a new “Up to Date” measure based on CDC’s new recommendations, replacing the primary series, boosted, and bivalent booster metrics The definition of “primary series complete” has not changed and is based on previous recommendations that CDC has since simplified. A person cannot complete their primary series with a single dose of an updated vaccine. Whereas the booster measures were calculated using the eligible population as the denominator, the new up to date measure uses the total estimated population. Please note that the rates for some groups may change since the up to date measure is calculated differently than the previous booster and bivalent measures. This data is from the same source as the Vaccine Progress Dashboard at https://covid19.ca.gov/vaccination-progress-data/ which summarizes vaccination data at the county level by county of residence. Where county of residence was not reported in a vaccination record, the county of provider that vaccinated the resident is included. This applies to less than 1% of vaccination records. The sum of county-level vaccinations does not equal statewide total vaccinations due to out-of-state residents vaccinated in California. These data do not include doses administered by the following federal agencies who received vaccine allocated directly from CDC: Indian Health Service, Veterans Health Administration, Department of Defense, and the Federal Bureau of Prisons. Totals for the Vaccine Progress Dashboard and this dataset may not match, as the Dashboard totals doses by Report Date and this dataset totals doses by Administration Date. Dose numbers may also change for a particular Administration Date as data is updated. Previous updates: * On March 3, 2023, with the release of HPI 3.0 in 2022, the previous equity scores have been updated to reflect more recent community survey information. This change represents an improvement to the way CDPH monitors health equity by using the latest and most accurate community data available. The HPI uses a collection of data sources and indicators to calculate a measure of community conditions ranging from the most to the least healthy based on economic, housing, and environmental measures. * Starting on July 13, 2022, the denominator for calculating vaccine coverage has been changed from age 5+ to all ages to reflect new vaccine eligibility criteria. Previously the denominator was changed from age 16+ to age 12+ on May 18, 2021, then changed from age 12+ to age 5+ on November 10, 2021, to reflect previous changes in vaccine eligibility criteria. The previous datasets based on age 16+ and age 5+ denominators have been uploaded as archived tables. * Starting on May 29, 2021 the methodology for calculating on-hand inventory in the shipped/delivered/on-hand dataset has changed. Please see the accompanying data dictionary for details. In addition, this dataset is now down to the ZIP code level.
PDF Summary of the Department's major program activities and statistical profile of California individual taxpayers.
PDF Summary of the Department's major program activities and statistical profile of California business taxpayers.
COVID-19 Vaccine Progress Dashboard Data by ZIP Code
__Note__: In these datasets, a person is defined as up to date if they have received at least one dose of an updated COVID-19 vaccine. The Centers for Disease Control and Prevention (CDC) recommends that certain groups, including adults ages 65 years and older, receive additional doses. Starting on July 13, 2022, the denominator for calculating vaccine coverage has been changed from age 5+ to all ages to reflect new vaccine eligibility criteria. Previously the denominator was changed from age 16+ to age 12+ on May 18, 2021, then changed from age 12+ to age 5+ on November 10, 2021, to reflect previous changes in vaccine eligibility criteria. The previous datasets based on age 12+ and age 5+ denominators have been uploaded as archived tables. Starting June 30, 2021, the dataset has been reconfigured so that all updates are appended to one dataset to make it easier for API and other interfaces. In addition, historical data has been extended back to January 5, 2021. This dataset shows full, partial, and at least 1 dose coverage rates by zip code tabulation area (ZCTA) for the state of California. Data sources include the California Immunization Registry and the American Community Survey’s 2015-2019 5-Year data. This is the data table for the [LHJ Vaccine Equity Performance dashboard](https://public.tableau.com/profile/ca.open.data#!/vizhome/LHJVaccineEquityPerformance/MapView?publish=yes). However, this data table also includes ZTCAs that do not have a VEM score. This dataset also includes Vaccine Equity Metric score quartiles (when applicable), which combine the Public Health Alliance of Southern California’s Healthy Places Index (HPI) measure with CDPH-derived scores to estimate factors that impact health, like income, education, and access to health care. ZTCAs range from less healthy community conditions in Quartile 1 to more healthy community conditions in Quartile 4. The Vaccine Equity Metric is for weekly vaccination allocation and reporting purposes only. CDPH-derived quartiles should not be considered as indicative of the HPI score for these zip codes. CDPH-derived quartiles were assigned to zip codes excluded from the HPI score produced by the Public Health Alliance of Southern California due to concerns with statistical reliability and validity in populations smaller than 1,500 or where more than 50% of the population resides in a group setting. These data do not include doses administered by the following federal agencies who received vaccine allocated directly from CDC: Indian Health Service, Veterans Health Administration, Department of Defense, and the Federal Bureau of Prisons. For some ZTCAs, vaccination coverage may exceed 100%. This may be a result of many people from outside the county coming to that ZTCA to get their vaccine and providers reporting the county of administration as the county of residence, and/or the DOF estimates of the population in that ZTCA are too low. Please note that population numbers provided by DOF are projections and so may not be accurate, especially given unprecedented shifts in population as a result of the pandemic.
Groundwater Sustainability Plan Annual Report Data
The Groundwater Sustainability Plan (GSP) Annual Report (AR) datasets contain the following data submitted by Groundwater Sustainability Agencies (GSA) and Alternative Agencies as part of their GSP AR or Alternative to GSP AR: groundwater extraction, surface water supply, total water use, and change in storage volumes for a given water year. All data was originally submitted to the Department of Water Resources (DWR) through the Sustainable Groundwater Management Act (SGMA) Portal’s AR Modules (https://sgma.water.ca.gov/portal/gspar/submitted and https://sgma.water.ca.gov/portal/alternative/annualreport/submitted). Data records within each dataset correspond to either an entire basin or one of multiple GSP areas which collectively correspond to an entire basin. The GSP Regulations established the AR data requirements (23 CCR § 356.2) and tasked DWR with developing an online reporting system for GSAs and Alternative Agencies to electronically submit these data (23 CCR § 353.2). The data fields associated with these datasets were created by DWR to ensure GSAs and Alternative Agencies electronically submitted the required AR data to DWR’s online reporting system, the SGMA Portal (https://sgma.water.ca.gov/portal/). For additional information regarding the AR Modules and the AR submittal process, please view the DWR’s AR resources (https://sgma.water.ca.gov/portal/resources).
DIR Electrician Certification Unit (ECU)
This dataset contains California certified electricians and electrician trainees lists maintained by the Department of Industrial Relation's Electrician Certification Unit. ***For questions regarding your license please contact: ECUINFO@dir.ca.gov**
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
The Division of Drinking Water (DDW) identifies Failing and At-Risk community water systems and K-12 non-transient, non-community schools. This information is displayed online in the Safe and Affordable Funding for Equity and Resilience (SAFER) Dashboard. The data utilized for this assessment is derived from multiple sources: self-reported from water systems, data generated by DDW staff, other California state agencies, and U.S. Census. The data sources, calculation methods, Failing and At-Risk criteria, etc. are fully documented in the annual Drinking Water Needs Assessment report which is published annually on the State Water Board’s website.
Needs Analysis Unit - Division of Drinking Water
The DWR Periodic Groundwater Levels dataset contains seasonal and long-term groundwater level measurements collected by the Department of Water Resources and cooperating agencies in groundwater basins statewide. It also includes data collected through the Sustainable Groundwater Management Act (SGMA) Portal’s Monitoring Network Module (MNM), and the CASGEM (California Statewide Groundwater Elevation Monitoring) Program. Most measurements are taken manually twice per year to capture the peak high and low values in groundwater elevations. However, the dataset also includes measurements recorded more frequently, monthly, weekly, or daily. This resource also included daily measurements from DWR's automated monitoring network of groundwater sites. For DWRs holdings of groundwater level measurements recorded at more frequent intervals (e.g., hourly), please refer to DWR's “Continuous Groundwater Level Measurements” dataset. For additional information regarding DWR groundwater levels data collection please visit DWR's Groundwater Management website (https://www.water.ca.gov/Programs/Groundwater-Management). The source data can also be accessed directly from two websites. The Water Data Library (http://wdl.water.ca.gov) provides anonymous access to this and other data sets. The CASGEM online system (https://www.casgem.water.ca.gov/OSS) provides authenticated access to only the the periodic groundwater measurements. This dataset is maintained primarily in the DWR Enterprise Water Management database and contains information specific to the location of groundwater level monitoring wells and groundwater level measurements collected at these wells. The Stations resource identifies well location coordinates and other supplementary items about the well type. Measurements resources includes information about the time/date a measurement was collected, the entity collecting the measurement, a measurement indicating the depth to groundwater, and quality information about the measurement. The Well Perforations resources contains well construction information identifying the well's screened intervals (not available for all wells).
The Groundwater Sustainability Plan (GSP) Monitoring dataset contains the monitoring sites and associated groundwater level, subsidence or streamflow measurements collected by Groundwater Sustainability Agencies (GSA) during implementation of their GSP. All data is submitted to the Department of Water Resources (DWR) through the Sustainable Groundwater Management Act (SGMA) Portal’s Monitoring Network Module (MNM). The GSP Regulations established the monitoring network criteria (23 CCR § 354.34) and the data and reporting standard for monitoring sites and measurements (23 CCR § 352.4). The data fields associated with these datasets were created by DWR to ensure that GSAs electronically submit monitoring site and measurement data which meets the GSP Regulation’s data and reporting standards. For additional information regarding GSAs, GSPs, and SGMA related monitoring, please view DWR’s SGMA Portal Resources at https://sgma.water.ca.gov/portal/.
Women, Infants and Children (WIC) Authorized Vendors
This dataset contains the vendor name and location of all currently active vendors authorized to offer supplemental foods to participants for redemption with WIC food instruments and vouchers. The Women, Infants and Children (WIC) Program is a federally-funded health and nutrition program that provides assistance to pregnant women, new mothers, infants and children under age five. WIC helps California families by providing food instruments and vouchers that can be used to purchase healthy supplemental foods from over 4000 WIC-authorized vendor stores throughout the State. WIC also provides nutritional education, breastfeeding support and help finding healthcare and other community services. Participants must meet income guidelines and other criteria. Currently, 84 WIC agencies provide services monthly to over 1.45 million participants at over 650 sites in local communities throughout the State. For a mobile friendly site on WIC vendors and other WIC-related information visit: https://m.wic.ca.gov/
In California, water systems serving one (1) to 15 households are regulated at the county level. Counties vary in their practices, but rarely do counties collect data regularly from these systems. Even where data is collected, it is entirely voluntary. A review of well permit information suggests there are over 1 million such water systems in California. In early 2014, a cross-agency Work Group created an easily accessible reporting system to get more systematic data on which parts of the state had households at risk of water supply shortages. The initial motivation for local water supply systems to report shortage information was to obtain statewide drought assistance. The reporting system receives ongoing reports of shortages from local, state, federal and non-governmental organizations, and tracks their status to resolution. While several counties have developed their own tracking mechanisms, this data is manually entered into the reporting system. The cross-agency team, led by DWR, seeks to verify and update the data submitted. However, due to the volunteer nature of the reporting and limitations on reporting agencies, collected data are undoubtedly under-representative of all shortages to have occurred. In addition, reports are received from multiple sources and there are occasionally errors and omissions that can create duplicate entries, non-household water supply reporting, and under-reporting. For example, missing information or no data for a given county does not necessarily mean that there are no household water shortages in the county, rather only that none have been reported to the State.
CA Urban Retail Water System Water Loss Annual Loss Audit Data
This dataset contains annual validated water loss audit reports submitted to the Department of Water Resources by California urban retail water suppliers, as required under Title 23, California Code of Regulations Section 638.5(c) (Regulation). California Water Code Section 10608.12(af) specifies that urban retail water suppliers are those water suppliers directly providing potable municipal water to more than 3,000 service connections or that supply more than 3,000 acre-feet per year at retail for municipal purposes. The Regulation mandates that urban retail water suppliers with multiple separate potable water systems submit a separate audit for each system, regardless of system size. The dataset includes individual water loss audits for all potable water systems owned by urban retail water suppliers, including reports from water suppliers newly classified as urban retail water suppliers. While all submissions are available at the WUEdata.ca.gov portal, this dataset provides a cleaned version with only the latest submissions (older submissions that were corrected are not included). Water system boundaries for the water system water loss data in this dataset may be available in the Water Board's DDW California Drinking Water System Area Boundaries (SABL) tool. The link to this tool can be found in Additional Resources as part of this dataset. Water loss audits evaluate real water losses (leaks) and apparent water losses (e.g. data errors, water theft) occurring in a potable water distribution system. Estimating the scale and cost of these losses allows utilities to identify opportunities for saving water and recovering revenue. California water loss audit submissions were reviewed by validators and submitted to DWR starting in 2016. The reviews followed the validation methodology detailed in Water Research Foundation Project 4639: Level 1 Water Audit Validation. Level 1 water audit validation aims to: * Identify and, where possible, correct inaccuracies in water audit data and application of methodology. * Evaluate and communicate the uncertainty inherent in water audit data. The data is provided "as is" (as submitted by the water systems). More information on this dataset can be found in the file "Data Source and Notes" available at the on the home page of this dataset.
The California Department of Public Health (CDPH) aggregates confirmed cases of COVID-19 by sewershed restricted locations. Confirmed cases are defined as individuals with a positive molecular test, which tests for viral genetic material, such as a polymerase chain reaction test. Since wastewater data available starts from January 1st, 2021, rather than the beginning of the COVID-19 pandemic in 2020, the cumulative counts of the confirmed cases variable are shown as “NA”. Please note that values less than 5 for confirmed cases are masked (shown as “Masked”) if the sewershed population size is 50,000 or fewer, in accordance with de-identification guidelines. Values less than 3 for cases are masked (shown as “Masked”) if the sewershed population size is between 50,001 and 250,000. For no confirmed cases reported, values are set as zero.
This dataset is a compilation of facility attributes from different sources of HCAI data (license, financial, and building safety data). The primary use of this dataset is to give an overview of common attributes for each facility that HCAI manages data and information from.
department of health care access and information
Urban Retail Water Supplier - Water Conservation, Supply, and Demand (June 2014 onwards)
Monthly reports of water use and conservation activities by urban retail water suppliers, which are generally defined as agencies serving over 3,000 service connections or deliveries 3,000 acre-feet of water annually for municipal purposes. The most recent reporting period generally lags by about 2 months, due to the reporting deadline and the necessary subsequent dataset preparation. The full dataset that spans June 2014 to the most recent reporting period is the Per-Supplier Water Supply and Demand resource, which is an updated version of the dataset previously released on the Water Board's [Water Conservation Portal](https://www.waterboards.ca.gov/water_issues/programs/conservation_portal/conservation_reporting.html). Other datasets include the per-water-system supply and demand, representing a subset of the SAFER Clearinghouse dataset, and the conservation actions datasets. See the documentation PDF for data dictionaries and an explanation of the data flag methodology.
California's Groundwater Live Supporting Data
This dataset contains files and materials in support of the California's Groundwater Live website. California's Groundwater Live is a user-friendly platform that allows users to view and interact with the latest information on groundwater in California. California's Groundwater Live website can be found at: https://sgma.water.ca.gov/CalGWLive/.
Sustainable Groundwater Management Office
The California Department of Water Resources (DWR) discrete (vs. continuous) water quality datasets contains DWR-collected, current and historical, chemical and physical parameters found in routine environmental, regulatory compliance monitoring, and special studies throughout the state.
State Water Project Routine Water Quality Monitoring
The California State Water Project (SWP) is one of the nation’s largest water conveyance projects. Its geographic extent stretches from Sierra Nevada lakes north of Lake Tahoe, down the Central Valley, across several mountain ranges, and through the Mojave Desert, ultimately terminating at four large reservoirs in Southern California. The SWP also supplies water to communities in the northern and southern San Francisco Bay Area and along the Central Coast. In total, the SWP delivers raw drinking water to treatment plants serving over 27 million people, provides irrigation water for more than 750,000 acres of farmland, and supports recreational access at many lakes and reservoirs throughout the state. The Division of Operations and Maintenance within the Department of Water Resources (DWR) monitors water quality in the SWP at locations strategically situated throughout the Project. The SWP monitoring program began in the early 1960s and continues to this day. The location, frequency, and constituents tested for have changed several times during this period to meet the new and expanding needs of SWP water users. The bulk of samples collected for this monitoring effort have been analyzed by DWR’s internal laboratory, Bryte Lab. Additional tests outside of Bryte Lab’s capability or capacity have been analyzed at non-DWR affiliated laboratories. This dataset covers all samples collected as part of the SWP’s routine water quality monitoring program. This does not include data collected for special projects, specific permit or regulatory requirements, or short-term studies. The following sections provide more information about specific types and groups of samples and their data analysis and availability. ___Standard Water Quality Analytes:___ This group of data contains the most commonly sampled for analytes and parameters for this program. This includes anions, cations, nutrients, organic carbon, solids, and field measurements such as conductivity, pH, turbidity, and water temperature. These data are analyzed by Bryte Lab and are available on the [Water Data Library](https://wdl.water.ca.gov/waterdatalibrary/). ___Asbestos:___ Samples for asbestos analysis have been collected at a few locations within the SWP since 1980 following detections of asbestos fibers in water delivered from the SWP. Subsequent studies showed several point and non-point sources that may contribute to asbestos in the SWP. The ongoing samples have been analyzed at several different labs during this time. Data from before 2009 have not been compiled into CSV format but are available as laboratory reports. These reports can be obtained by submitting a [record request](https://californiadwr.mycusthelp.com/WEBAPP/_rs/(S(3q2tw3v2guzqsnh1objifgtv))/supporthome.aspx). Data from 2009 and after are available in CSV format in this dataset with the exception of data during 2011-2014 when several reports were lost. ___Organic Chemicals:___ Several different classes of organic chemicals have been a part of the SWP monitoring program for many decades including analysis of phenols from the start of the program. Continued analysis of organic chemicals has included various types of pesticides, herbicides, semi-volatile organic compounds, and volatile organic compounds. The specific list of compounds has changed over time to meet specific program needs and laboratory analytical capabilities. Samples before 2020 were analyzed by Bryte Lab and are available on the [Water Data Library](https://wdl.water.ca.gov/waterdatalibrary/). Samples in 2020 and after were sent to non-DWR affiliated labs and are available in this dataset. ___PFAS:___ Sampling for PFAS in the SWP began in 2020 and has grown in frequency and number of sampling sites. These samples have been analyzed at non-DWR affiliated labs and are available in this dataset. ___Radionuclides:___ Samples for gross alpha, gross beta, Potassium-40, and tritium have been collected since the late 1990s. These samples have been analyzed by the California Department of Public Health’s Drinking Water and Radiation Laboratory. Results prior to 2010 have not been compiled into CSV format but are available as laboratory reports. These reports can be obtained by submitting a [record request](https://californiadwr.mycusthelp.com/WEBAPP/_rs/(S(3q2tw3v2guzqsnh1objifgtv))/supporthome.aspx). Data from 2010 and after are available in CSV format in this dataset. Suggested Citation: State Water Project Water Quality Program. (n.d.). Routine Water Quality Data. California Department of Water Resources. Retrieved Month Day, Year, from https://data.cnra.ca.gov/dataset/state-water-project-water-quality
The California Snow Data page contains resources from the California Data Exchange Center (CDEC) in open and machine readable format. These resources include snow sensor and snow course metadata and measurements and snow water content data. Snow courses are typically sampled manually around the beginning of the month during the February through May period. The procedure for snow course sampling is detailed in the [Snow Survey Procedure Manual](https://cdec.water.ca.gov/cgi-progs/products/SnowSurveyProcedureManualv20141027.pdf). Snow sensor data is automatically collected at 15-minute intervals and is available in daily and monthly intervals in the resources below. The source data and additional data and plots can be accessed from CDEC’s website (https://cdec.water.ca.gov/snow.html). For additional data visualizations, please visit the California Cooperative Snow Survey Program’s website and browse their dashboards (https://snow.water.ca.gov/).
Department Of Finance Exhibits Fall 2025
Data published semi-annually that forecast personal income and corporation tax revenue for the state
CDPH-Wastewater Surveillance Data, California
The California Department of Public Health (CDPH) is coordinating with wastewater utilities, local health departments, academic researchers, and laboratories in California on wastewater surveillance for infectious disease pathogens of interest to public health (such as SARS-CoV-2, the virus causing COVID-19, influenza, respiratory syncytial virus (RSV), mpox, and norovirus). Data collected from this network of participants, called the California Surveillance of Wastewaters (Cal-SuWers) Network, are submitted to the U.S. Centers for Disease Control and Prevention (CDC) National Wastewater Surveillance System (NWSS). Collecting and analyzing wastewater samples for the presence of, and amount of (concentration), a specified pathogen target can help inform public health about circulation of that infectious disease within a community. Data from wastewater testing do not replace existing public health surveillance systems but complement them. While wastewater surveillance cannot determine the exact number of infected persons in the area being monitored, it can provide overall trends of pathogen concentration within that community. Please note that data included in the Cal-SuWers Network and available here originate from multiple programs and laboratories. Methodologies for producing wastewater data are not currently standardized, and analyses, comparisons, and aggregations should be done with caution. Wastewater is a complex environmental sample and inherent variability in measured concentrations is expected due to environmental variability, day-to-day differences in sewershed and population dynamics, differences in the amount of shedding between people and pathogens, and laboratory and sampling variability. Please see the CDPH Cal-SuWers, CDC NWSS, and CDC Public Health interpretation and Use of Wastewater Surveillance data webpages for more information. Historical wastewater data can be found [here](https://data.ca.gov/dataset/covid-19-wastewater-surveillance-data-california).
Wastewater Surveillance, Surveillance Section | Coronavirus Control Branch
Spatial CIMIS ETo maps — Daily Reference Evapotranspiration for California
🔔 **Data now available in Cloud-Optimized GeoTIFF format for faster access!** ### Summary This dataset contains daily grass-reference evapotranspiration (ETo) maps for California at 2 km spatial resolution. The ETo values are expressed in millimeters (mm) per day. Spatial data are provided in EPSG:3310 (NAD83 / California Albers) with units in meters. ETo values are calculated statewide using the ASCE-Penman-Monteith equation (ASCE-PM), with required input parameters including solar radiation, air temperature, relative humidity, and wind speed at two meters height. Daily solar radiation is derived from NOAA GOES satellite imagery using the Heliosat-II model, which converts visible-band satellite images into global horizontal irradiation at ground level. Air temperature, relative humidity, and wind speed are interpolated across the 2 km grid from CIMIS weather station measurements using Spline interpolation. This hybrid method allows spatially distributed ETo maps statewide, filling gaps where station coverage is sparse. Refer to https://cimis.water.ca.gov/SpatialData.aspx and the “Daily reference evapotranspiration for California using satellite imagery and weather station measurement interpolation” (Civil Engineering and Environmental Systems, October 2007) for detailed methodology. ###Update (Dec 2025) Dataset name updated to “Spatial CIMIS ETo maps — Daily Reference Evapotranspiration for California. Added Cloud-Optimized GeoTIFF (COG) format for annual datasets (2004–present) to improve accessibility and enable efficient streaming. Original links to ASCII files remain available. ###Formats Available The dataset is provided in two formats to allows users to choose the format best suited for their analysis and workflows. 1. Original ASCII files — organized in a year/month/day folder structure. 2. Cloud-Optimized GeoTIFF (COG) files — one per year, enabling efficient streaming and subset access without downloading entire files. Each COG contains daily ETo values in a 2×2 km grid, covering 2004 through the most recently available year. ###Temporal Coverage Data are available annually from 2004 through the most recent year in both ASCII and Cloud-Optimized GeoTIFF (COG) formats. Note that the current year’s dataset may have a lag of several months before all daily values are finalized and published. Prior to 2004, data are available only in ASCII format for 2003 (February through December) and for October 2000. ###Access Via API For data via a web Application Programming Interface (API) please refer to https://data.cnra.ca.gov/dataset/cimis-weather-station-spatial-cimis-data-web-api ###Suggested Citation California Irrigation Management Information System. (n.d.). CIMIS spatial ETo maps: Daily reference evapotranspiration for California. California Department of Water Resources. Retrieved Month Day, Year, from https://data.cnra.ca.gov/dataset/cimis-spatial-eto-maps ###Related dataset [CIMIS Weather Station Data](https://data.cnra.ca.gov/dataset/cimis-weather-station-data) ###Change Log Dec 2025: Added COG format and updated dataset name. Updated metadata and clarified description.
Stormwater - Regulatory (including Enforcement Actions) Information and Water Quality Results
This dataset looks at all aspects of storm water management in California as managed and regulated by the State Water Resources Control Board, from the **[Stormwater Multiple Application and Report Tracking System (SMARTS)](https://smarts.waterboards.ca.gov)**.
Surface water toxicity data from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN). CEDEN is the California State Water Board's data system for surface water quality in California, and seeks to include all available statewide data (such as that produced by research and volunteer organizations). Data in CEDEN include field, sediment and water column data collected from freshwater, estuarine, and marine environments. Examples of data in CEDEN come from laboratory, physical and biological analyses and include data types associated with chemical, toxicological, field, bio-assessment, invertebrate, fish, and bacteriological assay assessments. The data resource "Surface Water Toxicity" contains two provisionally assigned values (“DataQuality” and “DataQualityIndicator”) to help users interpret the data quality metadata provided with the associated result. Zip files are provided for bulk data downloads (in csv or parquet file format), and developers can use the API associated with the "Surface Water Toxicity" (csv) resource to access the data. Users who want to manually download more specific subsets of the data can also use the **[CEDEN Query Tool](https://ceden.org/find_data_page.shtml)**, which provides access to the same data presented here, but allows for interactive data filtering.
California Environmental Data Exchange Network (CEDEN)
Surface Water - Water Quality Regulated Facility Information
Information regarding site visits of facilities that discharge wastewater, from the [California Integrated Water Quality System](https://www.waterboards.ca.gov/ciwqs) (CIWQS).
California Integrated Water Quality System (CIWQS)
Surface Water - Water Quality Regulatory Information
This data set lists active and historical enforcement actions records that are stored in the [California Integrated Water Quality System](https://www.waterboards.ca.gov/ciwqs) (CIWQS). Enforcement actions are generally issued in response to one or more instances of non-compliance (violations) of a base regulatory measure. Enforcement actions can be monetary or non-monetary.
This is an alphabetical list by county of all non-medical alcoholism and drug abuse recovery or treatment facilities licensed and/or certified by the Department of Health Care Services (DHCS). Within DHCS, the Substance Use Disorder Compliance (SUDC) Division Licensing and Certification Branch (LCB) is responsible for assuring that quality services are provided to all program participants in a safe and healthful environment through the licensure, certification, regulation, and oversight of a statewide system of alcohol and other drug recovery and treatment facilities and programs and counselors.
california department of health care services
California Spotted Owl Range - CWHR B270B [ds3268]
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. A majority of this range was adopted from the United States Fish and Wildlife Service (USFWS): https://ecos.fws.gov/ecp/species/7266. 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.
California Department of Fish And Wildlife
Marbled Murrelet Range - CWHR B240 [ds930]
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.
California Department of Food and Agriculture
Polycyclic Aromatic Hydrocarbon Samples - 2011-2024 - OSPR [ds714]
Polycyclic aromatic hydrocarbons (PAHs) are a class of organic compounds found in the environment associated with natural and anthropogenic activities such as the refinement and use of petroleum hydrocarbons as fuels and lubricants. When an oil spill occurs in California, an understanding of pre-spill or ambient levels of PAHs is crucial for understanding the existing environmental conditions before a release occurs. Anthropogenic (e.g., vehicle and boat exhaust, wood burning, industrial activities, oil spills) and natural releases (i.e., forest fires, oil seeps) of PAHs are common sources of these compounds in the environment. Ambient or pre-spill data are critical to identify the need for, and scope of, subsequent environmental sampling, and injury assessment. The Office of Spill Prevention and Response (OSPR) in collaboration with industry representatives (Chevron) and other state and federal trustee agencies (Department of Fish and Game, U.S. Fish and Wildlife Service, Bureau of Land Management, National Oceanic and Atmospheric Administration) have collected environmental samples (e.g., water, sediment, and tissue) for polycyclic aromatic hydrocarbon (PAH) chemical analysis from coastal and inland locations. In addition, plans to collect PAH monitoring data in California for the purpose of being prepared for oil spills and assessing natural resource injuries have been developed. Between 2011 and 2022, Chevron and the Trustees collected samples in Eureka/Humboldt Bay, Richmond, El Segundo, and San Diego, CA for PAH analysis to begin assessing ambient conditions. Chevron and the Trustees have the common understanding that the interpretation of statistical comparisons of these data to spill data (in the event one occurs) must take into consideration the sample size and geographic coverage of the available PAH monitoring data. From 2017 to present, CDFW-OSPR has collected samples in the Feather River Canyon, along the Upper Sacramento River, in Elkhorn Slough and Monterey Bay. For more information please visit, https://wildlife.ca.gov/OSPR/NRDA/Inland-Ambient-Data, https://wildlife.ca.gov/OSPR/NRDA/Marine-Ambient-Data.
​Profile of Enrolled Medi-Cal Fee-for-Service (FFS) Providers
The dataset provides basic information of the FFS providers enrolled in the Medi-Cal program as of January 12, 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.
These polygons depict vegetation management projects implemented under the CalVTP programmatic EIR. They can be fuel breaks in non-WUI or WUI or vegetation treatment projects for ecological restoration. For more information, visit the <a href='https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcalfire-umb05.azurewebsites.net%2Fprojects-and-programs%2Fcalvtp-homepage-and-storymap%2F&data=05%7C02%7CTiffany.Meyer%40fire.ca.gov%7C6147a8bb77e143a223a008dd72fdb97e%7C447a4ca05405454dad68c98a520261f8%7C1%7C0%7C638793156239419581%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=w2o5HjHP2Kb2dtAztCFoMAyL8hJ4RENVy86AvAjhziY%3D&reserved=0' rel='nofollow ugc'>CalVTP Homepage and Storymap.
California Department of Forestry and Fire Protection
Geodatabase feature class containing a map tile of vegetation within the Great Valley Ecoregion. The vegetation tile combines these datasets: Great Valley Ecoregion [ds2632], Central Valley Flood Protection Planning Area Update - 2016 [ds2890], Delta Vegetation and Land Use Update - 2016 [ds2855], Suisun Marsh 2024 [ds3221]. In areas where these datasets overlapped an erase tool was used to ensure the most up to date dataset is displayed. Great Valley Ecoregion [ds2632] The Great Valley Ecoregion vegetation polygons were manually digitized as interpreted using the National Agricultural Inventory Program's (NAIP) 2009 (Central Valley Riparian and Sacramento Valley map), 2012 (Southern San Joaquin Valley map) and 2014 (balance of San Joaquin Valley) aerial imagery at a scale of 1:2000. The minimum mapping unit (mmu) for natural vegetation is 1.0 acre, with a minimum average width of 10 meters. The mmu for agricultural and urban polygons is 10 acres. Vegetation is attributed to the Group and Alliance level of the state and national vegetation hierarchy. In some cases, polygons were attributed only to Group or Macrogroup level when the Alliance could not be determined from photointerpretation. The map classification is based on the key to vegetation types in Buck-Diaz et al. 2012. The Central Valley and Sacramento Valley maps were assessed for Accuracy with an average users’ accuracy of 90.2% and users’ accuracy of 89%. The San Joaquin Valley portion of the map was field verified by the mappers but was not otherwise assessed for accuracy (see Supplemental Information below for details). Suisun Marsh 2024 [ds3221] To create the 2024 Suisun Marsh vegetation map, vegetation was interpreted from a mosaic of the true color imagery that was flown in June 2024. Polygons were delineated using heads-up digitizing (i.e., a photo interpreter manually drew polygons around each stand of vegetation) in Esri's ArcGIS Pro 3.4.3, and polygon attributes were recorded within a file geodatabase. All attributes were interpreted using the Suisun Marsh 2024 imagery as the base imagery. The photo interpreters obtained information primarily from the 2021 map and 2024 reconnaissance points as reference data, which were used during mapping to determine vegetative signatures and the appropriate mapping type for each polygon. Several other imagery sources were used as ancillary data, including 2024 NAIP, 2024 NAIP Color Infrared, all imagery available through Google Earth (including street view), and the 2021 NAIP imagery. Minimum mapping unit (MMU): Typically, the minimum mapping size is 0.25 acres. However, the photo interpreters use their best judgment to determine if a stand below 0.25 acre should be separately delineated. For example, a smaller polygon would be appropriate for any new visible occurrence of a non-native species of concern, such as Phragmites australis, Arundo donax, Carpobrotus edulis, Eucalyptus spp., and Lepidium latifolium. Minimum mapping width: There are many long and narrow polygons within the Suisun Marsh study area, most of which are roads, ditches, levees, and sloughs. The minimum mapping width is typically 10 feet; however, if small sections of a stand fell below the minimum width, the polygon was not split. Central Valley Flood Protection Planning Area Update - 2016 [ds2890] The Department of Water Resources hired the GIC in early 2010 to complete a riparian vegetation map of the Central Valley Flood Protection Plan’s (CVFPP) footprint. The total acreage of the CVFPP footprint is approximately 2,645,600 acres and spans portions of the following 22 counties: Amador, Butte, Calaveras, Colusa, Fresno, Glenn, Kings, Madera, Mariposa, Merced, Placer, Sacramento, San Joaquin, Shasta, Stanislaus, Sutter, Tehama, Tulare, Tuolumne, Yolo, and Yuba. The Central Valley Flood Protection Plan Area was remapped using 2016 National Agricultural Inventory Program aerial imagery. Change detection was performed for the Central Valley Flood Protection Plan area, comparing the years 2009 to 2016, totaling 2,645,999 acres. Each map was clipped to the designated CVFPP area boundary and then each mapping unit was analyzed for change in acreages between the imagery years. The results of this analysis can be found in Table 4. Riparian acres totaled 281,033 in 2009 and 303,823 in 2016, showing an increase of 22,790 acres (8%). Non-riparian acres were 291,582 in 2009 and 264,568 in 2016, showing a decrease of 27,013 acres (9%). Agriculture covered 1,753,706 acres in 2009 and 1,757,906 acres in 2016, showing an increase of 4,200 acres (<1%). Urban areas covered 241,002 acres in 2009 and 244,155 acres in 2016, showing an increase of 3,153 acres (1%). Delta Vegetation and Land Use Update - 2016 [ds2855] Under contract to the California Department of Fish and Wildlife (CDFW) and the Bay-Delta Region for use in conjunction with the Delta Regional Ecosystem Restoration Implementation Plan, CDFW created a fine-scale vegetation map of portions of the Sacramento-San Joaquin River Delta. The mapping study area, consists of approximately 725,600 acres, of Alameda, Contra Costa, Solano, Sacramento, San Joaquin, and Yolo counties. The minimum mapping unit (MMU) is 2 acres for land use and vegetation; exceptions made for isolated land use, water, and critical vegetation types which were mapped to a 1-acre MMU. The floristic classification follows protocols compliant with the Federal Geographic Data Committee (FGDC) and National Vegetation Classification Standards (NVCS). More information can be found in the projects reports, which are bundled with the vegetation tile published for BIOS here: https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/3200_3299/ds3231.zip
National Vegetation Classification Standard
This dataset supports the [SWAMP Data Dashboard](https://gispublic.waterboards.ca.gov/swamp-data/), a public-facing tool developed by the [Surface Water Ambient Monitoring Program](https://www.waterboards.ca.gov/water_issues/programs/swamp/) (SWAMP) to provide accessible, user-friendly access to water quality monitoring data across California. The dashboard and its associated datasets are designed to help the public, researchers, and decision-makers explore and download monitoring data collected from California’s surface waters. This dataset includes five distinct resources: * __SWAMP Stations__ – Geospatial and descriptive information about SWAMP monitoring sites. * __Water Quality Results__ – Field and lab analysis results for chemical and physical parameters measured in water samples. * __Toxicity Summary Results__ – Summarized results from aquatic toxicity tests. Summary records are entries in the database that summarize the results from multiple replicate toxicity tests of the same sample water. * __Habitat Results__ – Data on physical habitat conditions typically collected alongside biological monitoring to provide context for interpreting water quality conditions. Includes scores for the California Stream Condition Index (CSCI) and Algal Stream Condition Index (ASCI). * __Tissue Summary Results__ – Annual summary statistics of contaminant concentrations in aquatic organism tissue samples. The data are derived from raw individual and composite tissue sample results. These data are collected by SWAMP and its partners to support water quality assessments, identify trends, and inform water resource management. The SWAMP Data Dashboard provides interactive visualizations and filtering tools to explore this data by region, parameter, and more. The SWAMP dataset is sourced from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN), which serves as the central repository for water quality data collected by various monitoring programs throughout the state. As such, there is some overlap between this dataset and the broader CEDEN datasets also published on the California Open Data Portal (see Related Resources). This SWAMP dataset represents a curated subset of CEDEN data, specifically tailored for use in the SWAMP Data Dashboard. Access the SWAMP Data Dashboard: https://gispublic.waterboards.ca.gov/swamp-data/ _*This dataset is provisional and subject to revision. It should not be used for regulatory purposes._
This dataset contains positive cases of West Nile virus found in humans by county of residence, 2006-present. Humans usually become infected with West Nile virus by being bitten by an infected mosquito. Viruses carried in the mosquito’s saliva enter the blood stream and local tissues where they infect immune cells. Most of the people who do become sick during a WNV infection develop what is referred to as “West Nile fever.” A small percentage of people will develop a much more serious illness called West Nile neuroinvasive disease (WNND). Positive cases in this dataset include both West Nile fever and West Nile neuroinvasive disease.
Vector-Borne Disease Section, Division of Communicable Disease Control, Division of Communicable Disease Control
Provides basic information for general acute care hospital buildings such as height, number of stories, the building code used to design the building, and the year it was completed. The data is sorted by counties and cities. Structural Performance Categories (SPC ratings) are also provided. SPC ratings range from 1 to 5 with SPC 1 assigned to buildings that may be at risk of collapse during a strong earthquake and SPC 5 assigned to buildings reasonably capable of providing services to the public following a strong earthquake. Where SPC ratings have not been confirmed by the Department of Health Care Access and Information (HCAI) yet, the rating index is followed by 's'. A URL for the building webpage in HCAI/OSHPD eServices Portal is also provided to view projects related to any building.
Department of Health Care Access and Information/Office of Statewide Hospital Planning and Development
Total Construction Cost of Healthcare Projects
Total dollar value and number of projects either in review, pending construction, in construction, or in closure aggregated into California counties, once every two weeks since September 2013. A construction project moves through the Department of Health Care Access and Information (HCAI) in four stages - In Review; Pending Construction Start; Under Construction; and In Closure. A project can only be in one of these four stages at any time. Additional data when available will be added to this dataset approximately once every two weeks.
Department of Health Care Access and Information/Facilities Development Division
Seismic Compliance Data By County for General Acute Care Hospitals
Data for seismic compliance in general acute care hospitals is grouped by counties. All general acute care hospital buildings are assigned a Structural Performance Category (SPC) which measures the probable seismic performance of building structural systems. Building structural systems include beams, columns, shear walls, slabs, and foundations. SPC ratings range from 1 to 5 with SPC 1 assigned to buildings that may be at risk of collapse during a strong earthquake and SPC 5 assigned to buildings reasonably capable of providing services to the public following a strong earthquake. State law requires all SPC 1 buildings to be removed from providing general acute care services by January 1, 2020, unless an approved extension has been granted, and all SPC 2 buildings to be removed from providing general acute care services by January 1, 2030. A hospital facility meets the January 1, 2030 requirements if all the general acute care buildings on campus are SPC and NPC compliant. 2030 compliant SPC ratings are either SPC 3, 4, 4D, or 5. 2030 compliant NPC ratings is NPC 5. Data is provided for both hospital facilities and hospital buildings. Data is updated approximately every two weeks.
Seismic Deadline Extensions Granted for California Hospitals
This dataset lists the General Acute Care (GAC) Hospitals that have been granted extensions for seismic compliance. Note that facilities that currently have extension requests under review are not included in this table. Extensions are sorted by County and by hospital building. To link the HCAI IDs with those from other Departments, like CDPH, please reference the "Licensed Facility Cross-Walk" Open Data table at https://data.chhs.ca.gov/dataset/licensed-facility-crosswalk.
Department of Health Care Access and Information, Office of Statewide Hospital Planning and Development/Seismic Compliance Unit
Seismic Ratings and Collapse Probabilities of California Hospitals
This dataset lists the Structural Performance Category or “SPC rating” and Nonstructural Performance Category or “NPC rating” of all General Acute Care Hospitals in California, including a building’s probability of collapse in a significant earthquake as assessed by Multi-Hazard Loss Estimation Technology (HAZUS). To link the HCAI IDs with those from other Departments, like CDPH, please reference the "Licensed Facility Cross-Walk" Open Data table at https://data.chhs.ca.gov/dataset/licensed-facility-crosswalk.
Prescription Drug Wholesale Acquisition Cost (WAC) Increases
This dataset is comprised of data submitted to HCAI by prescription drug manufacturers for wholesale acquisition cost (WAC) increases that exceed the statutorily-mandated WAC increase threshold of an increase of more than 16% above the WAC of the drug product on December 31 of the calendar year three years prior to the current calendar year. This threshold applies to prescription drug products with a WAC greater than $40 for a course of therapy. Required WAC increase reports are to be submitted to HCAI within a month after the end of the quarter in which the WAC increase went into effect. Please see the statute and regulations for additional information regarding reporting thresholds and report due dates. Key data elements in this dataset include the National Drug Code (NDC) maintained by the FDA, narrative descriptions of the reasons for the increase in WAC, and the five-year history of WAC increases for the NDC. A WAC Increase Report consists of 27 data elements that have been divided into two separate Excel data sets: Prescription Drug WAC Increase and Prescription Drug WAC Increase – 5 Year History. The datasets include manufacturer WAC Increase Reports received since January 1, 2019. The Prescription Drugs WAC Increase dataset consists of the information submitted by prescription drug manufacturers that pertains to the current WAC increase of a given report, including the amount of the current increase, the WAC after increase, and the effective date of the increase. The Prescription Drugs WAC Increase – 5 Year History dataset consists of the information submitted by prescription drug manufacturers for the data elements that comprise the 5-year history of WAC increases of a given report, including the amount of each increase and their effective dates. There are two types of WAC Increase datasets below: Monthly and Annual. The Monthly datasets include the data in completed reports submitted by manufacturers for calendar year 2025, as of January 12, 2026. The Annual datasets include data in completed reports submitted by manufacturers for the specified year. The datasets may include reports that do not meet the specified minimum thresholds for reporting. The Quick Guide explaining how to link the information in each data set to form complete reports is here: https://hcai.ca.gov/wp-content/uploads/2024/03/QuickGuide_LinkingTheDatasets.pdf The program regulations are available here: https://hcai.ca.gov/wp-content/uploads/2024/03/CTRx-Regulations-Text.pdf The data format and file specifications are available here: https://hcai.ca.gov/wp-content/uploads/2024/03/Format-and-File-Specifications-version-2.0-ada.pdf DATA NOTES: Due to recent changes in Excel, it is not recommended that you save these files to .csv format. If you do, when importing back into Excel the leading zeros in the NDC number column will be dropped. If you need to save it into a different format other than .xlsx it must be .txt Submitted reports that are still under review by HCAI are not included in these files. DATA UPDATES: Drug manufacturers may submit WAC Increase reports to HCAI for price increases from previous quarters. CTRx staff update the posted datasets monthly for current year data and as needed for previous years. Please check the 'Data last updated' date on each dataset page to ensure you are viewing the most current data. Due to regulatory changes that went into effect April 1, 2024, reports submitted prior to April 1, 2024, will include the data field "Unit Sales Volume in US" and reports submitted on or after April 1, 2024, will instead include "Total Volume of Gross Sales in US Dollars".
Accounting and Reporting Systems Section, Information Services Division
This dataset provides data for new prescription drugs introduced to market in California with a Wholesale Acquisition Cost (WAC) that exceeds the Medicare Part D specialty drug cost threshold. Prescription drug manufacturers submit information to HCAI within a specified time period after a drug is introduced to market. Key data elements include the National Drug Code (NDC) administered by the FDA, a narrative description of marketing and pricing plans, and WAC, among other information. Manufacturers may withhold information that is not in the public domain. Note that prescription drug manufacturers are able to submit new drug reports for a prior quarter at any time. Therefore, the data set may include additional new drug report(s) from previous quarter(s). There are two types of New Drug data sets: Monthly and Annual. The Monthly data sets include the data in completed reports submitted by manufacturers for calendar year 2025, as of January 12, 2026. The Annual data sets include data in completed reports submitted by manufacturers for the specified year. The data sets may include reports that do not meet the specified minimum thresholds for reporting. The program regulations are available here: https://hcai.ca.gov/wp-content/uploads/2024/03/CTRx-Regulations-Text.pdf The data format and file specifications are available here: https://hcai.ca.gov/wp-content/uploads/2024/03/Format-and-File-Specifications-version-2.0-ada.pdf DATA NOTES: Due to recent changes in Excel capabilities, it is not recommended that you save these files to .csv format. If you do, when importing back into Excel the leading zeros in the NDC number column will be dropped. If you need to save it into a different format other than .xlsx it must be .txt Submitted reports that are still under review by HCAI are not included in these files. DATA UPDATES: Drug manufacturers may submit New Drug reports to HCAI for prescription drugs which were not initially reported when they were introduced to market. CTRx staff update the posted datasets monthly for current year data and as needed for previous years. Please check the 'Data last updated' date on each dataset page to ensure you are viewing the most current data.
Daily SWP Reservoir Elevation and Storage Data
This dataset contains the daily elevation and storage data for the State Water Project reservoirs.
Draft Coarse Grid California Central Valley Groundwater-Surface Water Simulation Model (released January 1, 2026). C2VSimCG v2025 is a computer program that simulates water movement through the linked land surface, groundwater, and surface water flow systems in California’s Central Valley from October 1973 through September 2015. The C2VSimCG model contains monthly historical stream inflows, surface water diversions, precipitation, land use, and crop acreages. C2VSimCG dynamically calculates crop water demands, allocates contributions from precipitation, soil moisture and surface water diversions, and calculates the groundwater pumping required to meet the remaining demand. It simulates the historical response of the Central Valley’s groundwater and surface water flow system to historical stresses and can also be used to simulate the response to projected future stresses. The C2VSimCG version 2025 model package includes model input files, GIS data, model report and a short document describing how to run the model.
Per capita values are calculated by dividing the estimated population into total revenues per city, per fiscal year.
WDL Ground Surface Displacement - Land Subsidence Monitoring
Borehole extensometers are a more site specific method of measuring land subsidence. These instruments consist of a pipe or cable anchored at the bottom of a well casing. Pipe or cable extend from the bottom of the well, through geologic layers susceptible to compaction, to the ground surface. The pipe or cable is connected to a recorder that measures the relative distance between the bottom of the bore hole to the ground surface. These instruments are capable of detecting changes in land surface elevation to 1/100th of a foot. When land subsidence and water depth monitoring activities are paired together, hydraulic and mechanical properties of the aquifer system can be determined. DWR monitors 11 extensometers in the Sacramento Valley. For more information regarding land subsidence monitoring vist: http://www.water.ca.gov/groundwater/landsubsidence/LSmonitoring.cfm
Continuous Groundwater Level Measurements
DWR continuous groundwater level measurements contains continuous time-series data from automated recorders at sites operated by the Department of Water Resources. Readings are taken at 15-minute to one-hour intervals. Some of the readings are relayed to the California Data Exchange Center. However, most of the monitoring sites are visited once every month or two, when readings are off-loaded from data recorders, then finalized and published. Wells monitored for this dataset are located within Butte, Colusa, Glenn, Mendocino, Modoc, Sacramento, San Joaquin, Shasta, Siskiyou, Solano, Sutter, Tehama, Yolo, and Yuba Counties. Water-level measurements are the principal source of information about changes in groundwater storage and movement in a basin, and how these are affected by various forms of recharge (e.g., precipitation, seepage from streams, irrigation return) and discharge (e.g., seepage to streams, groundwater pumping). Water-level monitoring involves "continuous" or periodic measurements. Continuous monitoring makes use of automatic water-level sensing and recording instruments that are programmed to make scheduled measurements in wells. This provides a high-resolution record of water-level fluctuations. Resulting hydrographs can accurately identify the effects of various stresses on the aquifer system and provide measurements of maximum and minimum water levels in aquifers. Continuous monitoring may be the best technique to use for monitoring fluctuations in groundwater levels during droughts and other critical periods when hydraulic stresses may change at relatively rapid rates, or when real-time data are needed for making water management decisions [see usgs reference](https://ca.water.usgs.gov/sustainable-groundwater-management/groundwater-levels-california.html).
CAL FIRE Exemption Notices Right-of-Way TA83
All Exemption Notices (EXs) of Timber Operations accepted by the California Department of Forestry & 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. To learn more about Exemptions, refer to 14 CCR §§ 1038 and 1104.1(a) in the California Forest Practice Rules. 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. This data set is in the California Teale Albers NAD83 meters projection (TA83). Link to the California Forest Practice Rules: https://bof.fire.ca.gov/regulations/bills-statutes-rules-and-annual-california-forest-practice-rules For additional information on specific plans see the California Timber Regulation and Environmental Evaluation System (CalTREES): https://caltreesplans.resources.ca.gov/caltrees/Default.aspx
Stations and a table of download links for time-series data, from DWR's continuous environmental monitoring database. For more information, see DWR's Water Data Library, continuous data section: https://wdl.water.ca.gov/ContinuousData.aspx, where this data is also available.
California Recreational Fisheries Survey 1' Block-Box - Pre Jan 1, 2025 - R7 - CDFW [ds3153]
These cells divide the 10-minute (10‘) grid or California trawl (Cal-Trawl) Blocks that are used in commercial fishing into 1-minute (1’) boxes. The California Recreational Fisheries Survey (CRFS) uses these Block-Box cells (commonly called Microblocks) as a reference for anglers to report location of recreational catch and effort data. The 1' Microblocks in this dataset extend inland to include many coastal areas, estuaries, and bays. Attributes: NM_INDEX: Unique identifier for each Microblock. Format is (10’ minute Block – 1’ minute Box). BLOCK10_ID: Identification number of the larger 10-minute Cal-Trawl Block. BLOCK1_ID: Numerical ID representing the number of the 1-minute box dividing each Cal-Trawl Block. X: Longitudinal centroid of the Microblock. Y: Latitudinal centroid of the Microblock.
California Recreational Fisheries Survey
California Recreational Fisheries Survey 1' Block-Box - R7 - CDFW [ds3260]
These cells divide the 10-minute (10‘) grid or California trawl (Cal-Trawl) Blocks that are used in commercial fishing into 1-minute (1'') boxes. The California Recreational Fisheries Survey (CRFS) uses these Block-Box cells (commonly called Microblocks) as a reference for anglers to report location of recreational catch and effort data. The 1 Block-boxes in this dataset extend inland to include many coastal areas, estuaries, and bays. Attributes: NM_INDEX: Unique identifier for each Block-box. Format is (10'' minute Block '' 1'' minute Box). BLOCK10_ID: Identification number of the larger 10-minute Cal-Trawl Block. BLOCK1_ID: Numerical ID representing the number of the 1-minute box dividing each Cal-Trawl Block. X: Longitudinal centroid of the Block-box. Y: Latitudinal centroid of the Block-box.
This data provides results from field analyses, from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN). The data set contains two provisionally assigned values (“DataQuality” and “DataQualityIndicator”) to help users interpret the data quality metadata provided with the associated result. Due to file size limitations, the data has been split into individual resources by year. The entire dataset can also be downloaded in bulk using the zip files on this page (in csv format or parquet format), and developers can also use the API associated with each year's dataset to access the data. Users who want to manually download more specific subsets of the data can also use the **[CEDEN Query Tool](https://ceden.org/find_data_page.shtml)**, which provides access to the same data presented here, but allows for interactive data filtering.
Surface Water - Aquatic Organism Tissue Sample Results
This data set provides results of tissue from organisms found in surface waters, from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN). The data are of tissue from individual organisms and of composite samples where tissue samples from multiple organisms are combined and then analyzed. Both the individual samples and the composite sample results may be given so for individual samples, there will be a row for the individual sample and a row for the composite where the number per composite is one. The data set contains two provisionally assigned values (“DataQuality” and “DataQualityIndicator”) to help users interpret the data quality metadata provided with the associated result. Due to file size limitations, the data has been split into individual resources by year. The entire dataset can also be downloaded in bulk using the zip files on this page (in csv format or parquet format), and developers can also use the API associated with each year's dataset to access the data. Users who want to manually download more specific subsets of the data can also use the **[CEDEN Query Tool](https://ceden.org/find_data_page.shtml)**, which provides access to the same data presented here, but allows for interactive data filtering.
Chronic Wasting Disease Surveillance - CDFW [ds3157] Extended Table
This compilation of layers provides a comprehensive view of CWD-related activities, facilitating informed decision-making and strategic planning for wildlife management and disease prevention efforts. To date, there has not yet been any cases of CWD detected in California and surveillance data will be updated regularly. This data is associated with the following layers: Chronic Wasting Disease Sampling Stations - 2025 - CDFW [ds3154] (https://apps.wildlife.ca.gov/bios6/?al=3154), Participating Meat Processors and Taxidermists - 2025 - CDFW [ds3155] (https://apps.wildlife.ca.gov/bios6/?al=3155), Chronic Wasting Disease Sampling Stations - 2023-2024 - CDFW [ds3182] (https://apps.wildlife.ca.gov/bios6/?al=3182), Participating Meat Processors and Taxidermists - 2023-2024 - CDFW [ds3188] (https://apps.wildlife.ca.gov/bios6/?al=3188), Approved Deer Carcass Disposal Sites - CDFW [ds3156] (https://apps.wildlife.ca.gov/bios6/?al=3156). These layers include CWD Testing Sites, Participating Meat Processors and Taxidermists (MPT), Carcass Disposal Sites, and comprehensive data on CWD surveillance spanning from 1999 to 2025. This compilation of layers provides a comprehensive view of CWD-related activities, facilitating informed decision-making and strategic planning for wildlife management and disease prevention efforts. For the latest information, please visit https://wildlife.ca.gov/CWD.
This data provides results from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN) for field and lab chemistry analyses. The data set contains two provisionally assigned values (“DataQuality” and “DataQualityIndicator”) to help users interpret the data quality metadata provided with the associated result. Due to file size limitations, the data has been split into individual resources by year. The entire dataset can also be downloaded in bulk using the zip files on this page (in csv format or parquet format), and developers can also use the API associated with each year's dataset to access the data. Users who want to manually download more specific subsets of the data can also use the **[CEDEN Query Tool](https://ceden.org/find_data_page.shtml)**, which provides access to the same data presented here, but allows for interactive data filtering. **NOTE:** Some of the field and lab chemistry data that has been submitted to CEDEN since 2020 has not been loaded into the CEDEN database. That data is not included in this data set (and is also not available via the CEDEN query tool described above), but is available as a supplemental data set available here: **[Surface Water - Chemistry Results - CEDEN Augmentation](https://data.ca.gov/dataset/surface-water-chemistry-results-ceden-augmentation)**. For consistency, many of the conditions applied to the data in this dataset and in the CEDEN query tool are also applied to that supplemental dataset (e.g., no rejected data or replicates are included), but that supplemental data is provisional and may not reflect all of the QA/QC controls applied to the regular CEDEN data available here.
Surface Water - Benthic Macroinvertebrate Results
Data collected for marine benthic infauna, freshwater benthic macroinvertebrate (BMI), algae, bacteria and diatom taxonomic analyses, from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN). Note bacteria single species concentrations are stored within the chemistry template, whereas abundance bacteria are stored within this set. Each record represents a result from a specific event location for a single organism in a single sample. The data set contains two provisionally assigned values (“DataQuality” and “DataQualityIndicator”) to help users interpret the data quality metadata provided with the associated result. Zip files are provided for bulk data downloads (in csv or parquet file format), and developers can use the API associated with the "CEDEN Benthic Data" (csv) resource to access the data. Users who want to manually download more specific subsets of the data can also use the **[CEDEN Query Tool](https://ceden.org/find_data_page.shtml)**, which provides access to the same data presented here, but allows for interactive data filtering.
__Note__: On April 30, 2024, the Federal mandate for COVID-19 and influenza associated hospitalization data to be reported to CDC’s National Healthcare Safety Network (NHSN) expired. Hospitalization data beyond April 30, 2024, will not be updated on the Open Data Portal. Hospitalization and ICU admission data collected from summer 2020 to May 10, 2023, are sourced from the California Hospital Association (CHA) Survey. Data collected on or after May 11, 2023, are sourced from CDC's National Healthcare Safety Network (NHSN). Data is from the California Department of Public Health (CDPH) Respiratory Virus State Dashboard at https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/Respiratory-Viruses/RespiratoryDashboard.aspx. Data are updated each Friday around 2 pm. For COVID-19 death data: As of January 1, 2023, data was sourced from the California Department of Public Health, California Comprehensive Death File (Dynamic), 2023–Present. Prior to January 1, 2023, death data was sourced from the COVID-19 case registry. The change in data source occurred in July 2023 and was applied retroactively to all 2023 data to provide a consistent source of death data for the year of 2023. Influenza death data was sourced from the California Department of Public Health, California Comprehensive Death File (Dynamic), 2020–Present. COVID-19 testing data represent data received by CDPH through electronic laboratory reporting of test results for COVID-19 among residents of California. Testing date is the date the test was administered, and tests have a 1-day lag (except for the Los Angeles County, which has an additional 7-day lag). Influenza testing data represent data received by CDPH from clinical sentinel laboratories in California. These laboratories report the aggregate number of laboratory-confirmed influenza virus detections and total tests performed on a weekly basis. These data do not represent all influenza testing occurring in California and are available only at the state level.
Division of Communicable Disease Control
Surface Water - Sampling Location Information
Information about sampling locations for data from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN). This set of station/project combinations can be combined with other data sets from CEDEN to provide more information. CEDEN is the California State Water Board's data system for surface water quality in California, and seeks to include all available statewide data (such as that produced by research and volunteer organizations). Data in CEDEN include field, sediment and water column data collected from freshwater, estuarine, and marine environments. Examples of data in CEDEN come from laboratory, physical and biological analyses and include data types associated with chemical, toxicological, field, bioassessment, invertebrate, fish, and bacteriological assay assessments.
The Current Employment Statistics (CES) program is a Federal-State cooperative effort in which monthly surveys are conducted to provide estimates of employment, hours, and earnings based on payroll records of business establishments. The CES survey is based on approximately 119,000 businesses and government agencies representing approximately 629,000 individual worksites throughout the United States. CES data reflect the number of nonfarm, payroll jobs. It includes the total number of persons on establishment payrolls, employed full- or part-time, who received pay (whether they worked or not) for any part of the pay period that includes the 12th day of the month. Temporary and intermittent employees are included, as are any employees who are on paid sick leave or on paid holiday. Persons on the payroll of more than one establishment are counted in each establishment. CES data excludes proprietors, self-employed, unpaid family or volunteer workers, farm workers, and household workers. Government employment covers only civilian employees; it excludes uniformed members of the armed services. The Bureau of Labor Statistics (BLS) of the U.S. Department of Labor is responsible for the concepts, definitions, technical procedures, validation, and publication of the estimates that State workforce agencies prepare under agreement with BLS.
california employment development department
Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
The dataset currently contains hospitalization counts and rates, statewide and by county, for 4 conditions plus 3 composite measures. Hospitalizations for these conditions are potentially preventable through access to high-quality outpatient care. The conditions include: asthma (age 2-17), diabetes short-term complications (age 6-17), gastroenteritis (age 3 months-17 years), perforated appendix (retired, 2016), urinary tract infections (age 3 months-17 years), and low birth weight (<2500 grams; retired, 2016). The composite measures (age 6-17) include overall, acute conditions, and chronic conditions. The data provides a good starting point for assessing quality of health services in the community. The data does not measure hospital quality. Note: In 2015, HCAI only released the first three quarters of data due to a change in the reporting of diagnoses from ICD-9-CM to ICD-10-CM codes, effective October 1, 2015. Due to the significant differences resulting from the code change, the ICD-9-CM data is distinguished from the ICD-10-CM data in the data file beginning in 2016.
office of statewide health planning and development
Department of Health Care Access and Information, Healthcare Analytics Branch, Administrative Data Group
Rates of Preventable Hospitalizations for Selected Medical Conditions by County (LGHC Indicator)
The dataset contains hospitalization counts and rates, statewide and by county, for 10 ambulatory care sensitive conditions plus 4 composite measures. Hospitalizations due to these medical conditions are potentially preventable through access to high-quality outpatient care. The conditions include: diabetes short-term complications; diabetes long-term complications; chronic obstructive pulmonary disease (COPD) or asthma in older adults (age 40 and over); hypertension; heart failure; community-acquired pneumonia; urinary tract infection; uncontrolled diabetes; asthma in younger adults (age 18-39); and lower-extremity amputation among patients with diabetes. The composite measures include overall, acute conditions, chronic conditions, and diabetes (new, 2016). The data provides a good starting point for assessing quality of health services in the community. The data does not measure hospital quality. Note: In 2015, HCAI (formerly OSHPD) only released the first three quarters of data due to a change in the reporting of diagnoses from ICD-9-CM to ICD-10-CM codes, effective October 1, 2015. Due to the significant differences resulting from the code change, the ICD-9-CM data is distinguished from the ICD-10-CM data in the data file beginning in 2016.
Provider Suspended and Ineligible List (S&I List)
Medi-Cal law, _Welfare and Institutions Code_ (W&I Code), sections 14043.6 and 14123, mandate that the Department of Health Care Services (DHCS) suspend a Medi-Cal provider of health care services (provider) from participation in the Medi-Cal program when the individual or entity has: * Been convicted of a felony; * Been convicted of a misdemeanor involving fraud, abuse of the Medi-Cal program or any patient, or otherwise substantially related to the qualifications, functions, or duties of a provider of service; * Been suspended from the federal Medicare or Medicaid programs for any reason; * Lost or surrendered a license, certificate, or approval to provide health care; or * Breached a contractual agreement with the Department that explicitly specifies inclusion on this list as a consequence of the breach. __Suspension of Entities Submitting Claims for Suspended Providers__ Suspension is automatic when any of the above events occurs, and suspended Medi-Cal providers will not be entitled to a hearing under the _California Administrative Procedures Act_. Services rendered, prescribed or ordered by a suspended Medi-Cal provider shall not be covered by the Medi-Cal program while the suspension is in effect. _California Code of Regulations_, title 22, section 51303, subdivision (k), provides that at least fifteen (15) days written notice be given to all affected providers. This list constitutes such written notice. Although the period of suspension may have expired, reinstatement rights are not automatic. The provider must petition for reinstatement and re-enroll with DHCS before being reimbursed for services rendered. Providers suspended as a result of a Medicare action must appeal through the Medicare office before applying for re-enrollment with Medi-Cal. In accordance with W&I Code, section 14043.61, subdivision (a), a provider of health care services shall be subject to suspension if claims for payment are submitted under any provider number used by the provider to obtain reimbursement from the Medi-Cal program for the services, goods, supplies or merchandise provided, directly or indirectly to a Medi-Cal beneficiary, by an individual or entity that is suspended, excluded or otherwise ineligible because of a sanction to receive, directly or indirectly, reimbursement from the Medi-Cal program and the individual or entity is listed on either the _Medi-Cal Suspended and Ineligible Provider List_ (S&I List) published by DHCS to identify suspended and otherwise ineligible providers, or any list published by the federal Office of Inspector General regarding the suspension or exclusion of individuals or entities from the federal Medicare and Medicaid programs, to identify suspended, excluded or otherwise ineligible providers. Examples of providers who need to be aware of the provisions of this law, and could be suspended if violating the law are: 1. Billing services that submit claims for Medi-Cal providers who are suspended; 2. Pharmacies that fill prescriptions and bill for services prescribed by a suspended provider; 3. Providers who bill for services under referral or prescription of a provider who is suspended; 4. Providers who employ and submit claims for the services of an individual who is a suspended provider; 5. Physician groups, clinics and institutions that employ and submit claims for the services of an individual who is a suspended provider; 6. Any individuals or entities that enter into a business arrangement and submit claims for or in conjunction with an individual or entity that is suspended. Always refer to the S&I List when verifying ineligibility. Eligibility or ineligibility must also be verified through the Health and Human Services (HHS) Federal Office of Inspector General (OIG) [List of Excluded Individuals/Entities](https://oig.hhs.gov/exclusions/exclusions_list.asp). Cross-referencing both lists is recommended to help identify providers who have already been suspended or sanctioned. The S&I List is not all inclusive. Temporary sanctions against providers are not included on the web sites. Temporary sanctions that may be imposed include temporary suspensions, withhold of payments and deactivation.
__Data is from the California Department of Public Health (CDPH) Respiratory Virus Weekly Report.__ The report is updated each Friday. __Laboratory surveillance data__: California laboratories report SARS-CoV-2 test results to CDPH through electronic laboratory reporting. Los Angeles County SARS-CoV-2 lab data has a 7-day reporting lag. Test positivity is calculated using SARS-CoV-2 lab tests that has a specimen collection date reported during a given week. Laboratory surveillance for influenza, respiratory syncytial virus (RSV), and other respiratory viruses (parainfluenza types 1-4, human metapneumovirus, non-SARS-CoV-2 coronaviruses, adenovirus, enterovirus/rhinovirus) involves the use of data from clinical sentinel laboratories (hospital, academic or private) located throughout California. Specimens for testing are collected from patients in healthcare settings and do not reflect all testing for influenza, respiratory syncytial virus, and other respiratory viruses in California. These laboratories report the number of laboratory-confirmed influenza, respiratory syncytial virus, and other respiratory virus detections and isolations, and the total number of specimens tested by virus type on a weekly basis. Test positivity for a given week is calculated by dividing the number of positive COVID-19, influenza, RSV, or other respiratory virus results by the total number of specimens tested for that virus. Weekly laboratory surveillance data are defined as Sunday through Saturday. __Hospitalization data__: Data on COVID-19 and influenza hospital admissions are from Centers for Disease Control and Prevention’s (CDC) National Healthcare Safety Network (NHSN) Hospitalization dataset. The requirement to report COVID-19 and influenza-associated hospitalizations was effective November 1, 2024. CDPH pulls NHSN data from the CDC on the Wednesday prior to the publication of the report. Results may differ depending on which day data are pulled. Admission rates are calculated using population estimates from the P-3: Complete State and County Projections Dataset provided by the State of California Department of Finance (https://dof.ca.gov/forecasting/demographics/projections/). Reported weekly admission rates for the entire season use the population estimates for the year the season started. For more information on NHSN data including the protocol and data collection information, see the CDC NHSN webpage (https://www.cdc.gov/nhsn/index.html). CDPH collaborates with Northern California Kaiser Permanente (NCKP) to monitor trends in RSV admissions. The percentage of RSV admissions is calculated by dividing the number of RSV-related admissions by the total number of admissions during the same period. Admissions for pregnancy, labor and delivery, birth, and outpatient procedures are not included in total number of admissions. These admissions serve as a proxy for RSV activity and do not necessarily represent laboratory confirmed hospitalizations for RSV infections; NCKP members are not representative of all Californians. Weekly hospitalization data are defined as Sunday through Saturday. __Death certificate data__: CDPH receives weekly year-to-date dynamic data on deaths occurring in California from the CDPH Center for Health Statistics and Informatics. These data are limited to deaths occurring among California residents and are analyzed to identify influenza, respiratory syncytial virus, and COVID-19-coded deaths. These deaths are not necessarily laboratory-confirmed and are an underestimate of all influenza, respiratory syncytial virus, and COVID-19-associated deaths in California. Weekly death data are defined as Sunday through Saturday. __Wastewater data__: This dataset represents statewide weekly SARS-CoV-2 wastewater summary values. SARS-CoV-2 wastewater concentrations from all sites in California are combined into a single, statewide, unit-less summary value for each week, using a method for data transformation and aggregation developed by the CDC National Wastewater Surveillance System (NWSS). Please see the CDC NWSS data methods page for a description of how these summary values are calculated. Weekly wastewater data are defined as Sunday through Saturday.
The dashboard is updated each Friday. __Laboratory surveillance data__: California laboratories report SARS-CoV-2 test results to CDPH through electronic laboratory reporting. Los Angeles County SARS-CoV-2 lab data has a 7-day reporting lag. Test positivity is calculated using SARS-CoV-2 lab tests that has a specimen collection date reported during a given week. Specimens for testing are collected from patients in healthcare settings and do not reflect all testing for COVID-19 in California. Test positivity for a given week is calculated by dividing the number of positive COVID-19 results by the total number of specimens tested for that virus. Weekly laboratory surveillance data are defined as Sunday through Saturday. __Hospitalization data__: Data on COVID-19 and influenza hospital admissions are from Centers for Disease Control and Prevention’s (CDC) National Healthcare Safety Network (NHSN) Hospitalization dataset. The requirement to report COVID-19-associated hospitalizations was effective November 1, 2024. CDPH pulls NHSN data from the CDC on the Wednesday prior to the publication of the report. Results may differ depending on which day data are pulled. Admission rates are calculated using population estimates from the P-3: Complete State and County Projections Dataset (https://dof.ca.gov/forecasting/demographics/projections/) provided by the State of California Department of Finance. Reported weekly admission rates for the entire season use the population estimates for the year the season started. For more information on NHSN data including the protocol and data collection information, see the CDC NHSN webpage (https://www.cdc.gov/nhsn/index.html). Weekly hospitalization data are defined as Sunday through Saturday. __Death certificate data__: CDPH receives weekly year-to-date dynamic data on deaths occurring in California from the CDPH Center for Health Statistics and Informatics. These data are limited to deaths occurring among California residents and are analyzed to identify COVID-19-coded deaths. These deaths are not necessarily laboratory-confirmed and are an underestimate of all COVID-19-associated deaths in California. Weekly death data are defined as Sunday through Saturday.
CDPH-CalCAT Modeling Nowcasts and Forecasts for COVID-19 and Influenza
This dataset includes three tables with the model-based projections and estimates as shown on CalCAT in 2025 (http://calcat.cdph.ca.gov) for California state, regions, and counties. (1) COVID-19 Nowcasts includes the R-effective estimates for COVID-19 from the different models available for the past 80 days from the archive date and the median ensemble thereof. (2) CalCAT Forecasts includes hospital census and admissions forecasts for COVID-19 and Influenza, and the corresponding ensemble metrics for a 4 week horizon from the archive date. (3) Variant Proportion Nowcasts contains the Integrated Genomic Epidemiology Dataset (IGED)-based and Terra-based estimates of COVID-19 variants circulating over the past 3 months as well as model-based predictions for the proportions of the variants of concern for dates leading up to the archive date. Prediction intervals are included when available. This dataset provides CalCAT users with programmatic access to the downloadable datasets on CalCAT. This dataset also includes a zipped file with the historical archives of the COVID-19 Nowcasts, CalCAT Forecasts and Variant Proportion Nowcasts through 2023.
__Data is from the California Department of Public Health (CDPH) Respiratory Virus Dashboard.__ The respiratory virus dashboard shows statewide and regional, weekly data for the following conditions: - COVID-19 - Influenza - Respiratory Syncytial Virus (RSV) This dashboard provides an overview of respiratory virus activity (test positivity, flu typing, emergency department visits) and severity (hospital admissions, deaths, and pediatric deaths). The data update most Fridays but may change in future updates as more information becomes available.
Authoritative California State Lands Commission data along with updated databases of planning documents, datasets from a variety of organizations, and widgets for exploring underlying data.
Medi-Cal Certified Eligible Counts, by Month of Eligibility, Zip Code, and Sex
Dataset contains counts of individuals certified eligible for Medi-Cal, by Month of Eligibility, Zip Code, and Sex, from Calendar Year 2005 to the most recent reportable month. Due to the amount of data presented, below the dataset has been split into three files. All datasets are derived from the most recent reportable months information.
Enterprise Data and Information Management / Data Management and Analytics Division
Statewide Medi-Cal Certified Eligible Individuals, by Aid Code, 2010 to the Most Recent Reportable Month
This data set includes statewide counts of Medi-Cal certified eligibles by Month, Aid Code and Delivery System. The term certified eligible refers to beneficiaries who have been determined eligible for Medi-Cal based on a valid eligibility determination.
Medi-Cal Certified Eligibles Data by Month with Demographics
These files contain monthly data by county for Medi-Cal certified eligibles, by various demographics traits. The data is split out and not distributed as a single dataset for the purposes of de-identification.
Licensed Mental Health Rehabilitation Centers (MHRC) and Psychiatric Health Facilities (PHF)
This dataset contains an alphabetical list, by county, of all Mental Health Rehabilitation Centers (MHRC) and Psychiatric Health Facilities (PHF) licensed by the Department of Health Care Services (DHCS). Within DHCS, the Licensing and Certification Division (LCD), Licensing Branch 2, Mental Health Licensing (MHL) Section is responsible for assuring that quality mental health treatment and services are provided to all program participants in a safe and healthy environment through licensure and oversight of a statewide system of 24-hour psychiatric and rehabilitation care facilities.
Licensing and Certification Division / Licensing Branch 2 / Mental Health Licensing Section / Licensing Unit 2
Utility Wind Project Size by County and State: 2023
Dec. 22, 2025; Produced by the California Energy Commission; Projection: NAD 1983 (2011) Contiguous USA Albers; Data: Energy Information Administration (EIA-860) and the Wind Generation Reporting System. For more information, contact John Hingtgen at John.hingtgen@energy.ca.gov. The map illustrates the variation in median plant capacity across the United States and California of wind plants with nameplate capacity of at least 1 MW. Median plant capacity depends on the statewide capacity and the number of plants 0 60 120 240 Miles within the defined area.
Statewide Property Inventory started in 1989 per legislation 11011.15, to begin a pro-active approach to managing the State’s Real Property assets in a computerized format. Having the information in an electronic format makes it available to top level decision-makers considering options for the best use of these assets. The Statewide Property Inventory is mandated to capture detailed information on the following: land owned and leased by the state, structures owned and leased by the state, property the state leases to the private sector. Statewide Property Inventory was established in 1988 by legislative mandate. Leases were added in 2004 by executive order. Data is updated annually by the agencies. Point of Contact: Any questions should be referred to the SPIWeb@dgs.ca.gov
california department of general services
Percentage of Influenza Detections at Clinical...
Survey Area 7 - Data Report Appendices (North Sacramento Valley - Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope and Bend groundwater subbasins )
Appendices to the Data Report for Survey Area 7 (North Sacramento Valley - Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope and Bend groundwater subbasins). File updated on 6/30/2023.
Texture2Par Version 2 is a groundwater model pre-processor and parameterization utility tool developed to work with the IWFM and MODFLOW families of hydrologic simulation codes. Texture2Par Version 2 allows for the integration of AEM data into the groundwater flow model parameterization process. Version 2 builds off of [Texture2Par Version 1](https://data.cnra.ca.gov/dataset/svsim/resource/88cbfa06-a2e7-4078-8f76-a1044d32fe70 "Texture2Par Version 1"), utilized in [DWR's Sacramento Valley Groundwater-Surface Water Simulation Model](https://data.cnra.ca.gov/dataset/svsim "DWR's Sacramento Valley Groundwater-Surface Water Simulation Model"). File contains a preliminary description of the Texture2Par Version 2.0 tool. Tool expected to be publicly available in Early 2025.
COVID-19 Vaccines Administered By Demographics (2023-2024 updated vaccine archived)
Survey Area 11 - Supporting Data - PROVISIONAL
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 8/5/2024 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
Q1-Q4 2019 Prescription Drugs Introduced to Market
Water Chemistry data for year 2000 from the California Environmental Data Exchange Network (CEDEN).
Data Dictionary - West Nile Virus 2006-present
2017 (v2022) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
The dataset contains hospitalization counts and rates, statewide and by county, for 10 ambulatory care sensitive conditions plus 4 composite measures. Hospitalizations due to these medical conditions are potentially preventable through access to high-quality outpatient care. The conditions include: diabetes short-term complications; diabetes long-term complications; chronic obstructive pulmonary disease (COPD) or asthma in older adults (age 40 and over); hypertension; heart failure; community-acquired pneumonia; urinary tract infection; uncontrolled diabetes; asthma in younger adults (age 18-39); and lower-extremity amputation among patients with diabetes. The composite measures include overall, acute conditions, chronic conditions, and diabetes (new, 2016). The data provides a good starting point for assessing quality of health services in the community. The data does not measure hospital quality. Note: In 2015, HCAI (formerly HCAI) only released the first three quarters of data due to a change in the reporting of diagnoses from ICD-9-CM to ICD-10-CM codes, effective October 1, 2015. Due to the significant differences resulting from the code change, the ICD-9-CM data is distinguished from the ICD-10-CM data in the data file beginning in 2016.
Per-Water-System Supply and Demand, Jan2023 onwards
Per-water-system data from the Clearinghouse for urban retail water suppliers, from January 2023 onwards. One row per water system per reporting period. Column header names have been reformatted to eliminate spaces and special characters.
By Delivery System and Plan, Certified Eligibles
This is the file for Certified Eligibles by Delivery System and Plan
Station metadata provides information related to active sensor stations including their location, elevation, start date, operation and maintenance agencies.
AEM data package containing provisional inverted AEM data (electrical resistivity values versus depth) and AEM data interpretations. Survey Area 10 covers the following groundwater subbasins: San Antonio Creek Valley, Arroyo Grande, Santa Maria, San Luis Obispo, Los Osos Area, Warden Creek, Chorro Valley (limited), and Morro Valley (limited). File updated on 11/1/2024.
Water Chemistry data for year 2021 from the California Environmental Data Exchange Network (CEDEN).
Crashes raw data file of 2025; Updated: 1/15/2026 7:03:10 PM
Habitat data for year 2004 from the California Environmental Data Exchange Network (CEDEN).
Habitat data for year 2010 from the California Environmental Data Exchange Network (CEDEN).
Parties raw data file of 2018; Updated: 1/15/2026 7:35:43 PM
Tissue data for year 2024 from the California Environmental Data Exchange Network (CEDEN).
Survey Area 5 - Esri Scene Layer Package - Resistivity
This file contains the electrical resistivity data where each point represents the vertical center and the average resistivity value for a depth interval. Resistivity data were obtained from 04_XYZ_Ascii\02_Sharp MLM*_inv.xyz files and displayed as a Point Cloud. The Esri Scene Layer Package (SLPK) files can be opened in the ArcPro within a Local Scene.
Some simple approaches to querying large csv datasets on CNRA Open data
InjuredWitnessPassengers raw data file of 2024; Updated: 1/15/2026 7:09:42 PM
Survey Area 1 - Cuyama AEM Data - PROVISIONAL
AEM data package containing provisional AEM data acquisition parameters, raw and inverted AEM data, and AEM profile and depth slice images. File updated on 4/26/2022.
Appendices to Data Report for Survey Area 9 (Basin Characterization Pilot Study 1) - Madera and Kings subbasins. File updated on 2/28/2024.
Crashes raw data file of 2020; Updated: 1/15/2026 7:25:07 PM
Survey Area 3 - Data Report Appendices - Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, and Sonoma Valley
Appendices to Data Report for Survey Area 3 (Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, and Sonoma Valley). File updated on 2/10/2023.
West Nile Virus Cases, 2006-present (CSV)
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2024 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2024. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
CEDEN Toxicity Data (Parquet File Format)
This resource contains all toxicity data available from the CEDEN database, in the [Apache Parquet file format]((https://parquet.apache.org/)). The data is partitioned by year. Parquet is a free and open source data storage format that allows for fast and efficient processing of large datasets. It is compatible with a variety of data analysis platforms, including the R and Python programming languages, through the [Apache Arrow platform](https://arrow.apache.org/). An example showing how to use this data with the R programming language is available [here](https://gist.github.com/daltare/209acf0789b4f1bdec272c323ba45315).
Habitat data for year 2020 from the California Environmental Data Exchange Network (CEDEN).
Monitoring sites for Safe to Swim (no longer updated)
This data resource will no longer be updated.
COVID-19 Vaccines By Demographics by County - Data Dictionary
If you need more information on the dataset data dictionary, please visit the data dictionaries on our CAIR website: https://www.cdph.ca.gov/Programs/CID/DCDC/CAIR/Pages/CAIR-records-LHD-COVID.aspx
AEM data package containing a provisional AEM data acquisition parameters, raw, inverted, and interpreted AEM data. Survey Area 2 covers the following groundwater basins: Scott River Valley, Shasta Valley, Butte Valley, Tulelake, and Big Valley (Lassen/Modoc counties). File updated on 10/11/2022.
Survey Area 4 - Data Report - Kern County & White Wolf
Data Report for Survey Area 4 (Kern County and White Wolf groundwater subbasins). File updated on 3/3/2023
Tissue data for year 2008 from the California Environmental Data Exchange Network (CEDEN).
Water Chemistry data for year 2008 from the California Environmental Data Exchange Network (CEDEN).
2018 (v2022) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Water Chemistry data for year 2011 from the California Environmental Data Exchange Network (CEDEN).
2016-2021 (v2022) ReadMe-Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
CEDEN Water Chemistry Data Prior to 2000
Water Chemistry data prior to year 2000 from the California Environmental Data Exchange Network (CEDEN).
Aggregated SARS-CoV-2 RNA Wastewater Concentrations
2017 (v2021) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Flown flight lines for Survey Area 9 (Basin Characterization Pilot Study 1). Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85). File updated 10/10/2023.
Crashes raw data file of 2021; Updated: 1/15/2026 7:21:40 PM
Water Chemistry data for year 2010 from the California Environmental Data Exchange Network (CEDEN).
The data dictionary file is included as a backup. While the data dictionary for the water loss dataset is available for viewing and download on the portal, the variable types are not always displayed correctly and defaults to text.
InjuredWitnessPassengers raw data file of 2021; Updated: 1/15/2026 7:22:42 PM
Q1-Q4 2023 Prescription Drug WAC Increases - 5 Year History
Habitat data for year 2015 from the California Environmental Data Exchange Network (CEDEN).
Percentage of SARS-CoV-2 Detections from Test...
Dry Well Reporting (GIS Feature Service)
Statistics on reported dry wells are based on the Household Water Supply Shortage Reporting System Data. The Household Water Supply Shortage Reporting System is available online at at https://mydrywatersupply.water.ca.gov/report/. This service is under development as part of of ongoing enhancements to CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.
Parties raw data file of 2020; Updated: 1/15/2026 7:25:28 PM
2016 (v2020) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
The dataset contains hospitalization counts and rates, statewide and by county, for 10 ambulatory care sensitive conditions plus 4 composite measures. Hospitalizations due to these medical conditions are potentially preventable through access to high-quality outpatient care. The conditions include: diabetes short-term complications; diabetes long-term complications; chronic obstructive pulmonary disease (COPD) or asthma in older adults (age 40 and over); hypertension; heart failure; community-acquired pneumonia; urinary tract infection; uncontrolled diabetes; asthma in younger adults (age 18-39); and lower-extremity amputation among patients with diabetes. The composite measures include overall, acute conditions, chronic conditions, and diabetes (new, 2016). The data provides a good starting point for assessing quality of health services in the community. The data does not measure hospital quality. Note: In 2015, HCAI only released the first three quarters of data due to a change in the reporting of diagnoses from ICD-9-CM to ICD-10-CM codes, effective October 1, 2015. Due to the significant differences resulting from the code change, the ICD-9-CM data is distinguished from the ICD-10-CM data in the data file beginning in 2016.
The URL provides access to adjusted snow water equivalent data for the 2001–2010 calendar years from active snow sensors in California. Data availability varies by station. Alternatively, the adjusted snow water equivalent data can be directly accessed and downloaded through the [CDEC Sensor Group JSON and CSV Web Services](https://cdec.water.ca.gov/dynamicapp/groupform). To retrieve the data, specify: Group ID: SW1 Desired Start and End Dates: in the request parameters
Survey Area 10 - Supporting Data - PROVISIONAL
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 1/16/2024 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2020 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2020. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Parties raw data file of 2022; Updated: 1/15/2026 7:17:49 PM
Data Analysis Tools and Process Documents
As part of the Basin Characterization Program, DWR will develop new tools and process documents to support the integration and analysis of a wide range of datasets to create maps and models that describe the grain size, hydrostratigraphic properties, and hydrogeologic conceptual properties of California’s aquifers. These tools will be capable of integrating geologic information (from lithology logs), geophysical information (from airborne electromagnetic (AEM) surveys, towed-EM surveys, and geophysical logs), and hydrologic information (water levels and water quality). By combining and assessing various datasets, these tools will help create a more complete picture of California's groundwater basins. All tools, along with process documents, will be made publicly available for local groundwater managers to use to support development of maps and models at a local scale. All tools and guidance will be updated as revisions to tools and guidance are made. ##Data Analysis Tools + [Data2Texture](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/91b11192-9867-4020-82f0-df795d6eb7b4 "Data2Texture"): Data2Texture is an advanced spatial data interpolation and simulation tool for estimating the distribution of sediment textures to create a 3D texture model. Tool expected to be publicly available in Early 2025. + [Data2HSM - Smart Interpretation](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/a00585a3-d330-41b1-aeba-f450526596b9 "Data2HSM - Smart Interpretation"): Data2HSM via Smart Interpretation (SI) is a semi-automatic Python tool for delineating continuous hydrogeologic surfaces from airborne electromagnetic data products, including inverse resistivity and coarse-fraction models. Tool expected to be publicly available in Early 2025. + [Data2HSM - Gaussian Mixture Model](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/14a82d4c-c6f7-4d13-8189-91cada79f867 "Data2HSM - Gaussian Mixture Model"): The Data2HSM via Gaussian Mixture Model tool ingests the AEM data and groups the data into a user-specified number of clusters that are interpreted as stratigraphic units in the hydrostratigraphic model (HSM). Tool expected to be publicly available in Early/Mid 2025. + [Data2HSM - Geological Pseudolabel Deep Neural Network](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/ab9d4d5b-0c7a-4374-a3bc-1ad6f1c25621 "Data2HSM - Geological Pseudolabel Deep Neural Network"): The GeoPDNN (Geological Pseudolabel Deep Neural Network) is a semi-supervised machine learning tool that integrates point-based datasets - such as formation picks from lithologic well logs or individual AEM soundings- into plausible stratigraphic surfaces for a preliminary hydrostratigraphic model. Tool expected to be publicly available in Mid-late 2025. + [Texture2Par V2](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/ef60d3ee-91d3-40cc-9455-5b9775993ee5 "Texture2Par V2"): Texture2Par V2 is a groundwater model pre-processor and parameterization utility developed to work with the IWFM and MODFLOW families of hydrologic simulation codes.Tool expected to be publicly available in Early 2025. ##Data Analysis Process Documents + [Aquifer Recharge Potential Mapping](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/7d33d618-38bc-4511-834c-6e791695f8e2 "Aquifer Recharge Potential Mapping "): The Aquifer Recharge Potential (ARP) Mapping Process Document provides a framework for identifying locations that have relatively higher potential for MAR. The goal of the document is to support groundwater managers in making informed MAR decisions, ultimately contributing to more effective and sustainable water management practices..
Crashes raw data file of 2018; Updated: 1/15/2026 7:35:20 PM
FTB’s Economic & Statistical Research Bureau, uses the information collected to provide statistical analyses of current tax return data and trends when it meets twice a year with the Department of Finance (DOF) and Legislative Analyst Office (LAO). They use the data to assist the Governor's office in California with budget-forecasting purposes. The Revenue Estimating Exhibits are published semi-annually.
GIS Resources for DWR Continuous Monitoring Stations
Link to the GIS resources for the continuous monitoring stations also described here, and published in the DWR Water Data Library https://wdl.water.ca.gov/
The GeoPDNN (Geological Pseudolabel Deep Neural Network) is a semi-supervised machine learning tool that integrates point-based datasets - such as formation picks from lithologic well logs or individual AEM soundings- into plausible stratigraphic surfaces for a preliminary hydrostratigraphic model. File contains a preliminary description of the Data2HSM via GeoPDNN tool. Tool expected to be publicly available in Mid-late 2025.
Madera & North Kings - Aquifer Recharge Potential Maps (Version 2024.3)
Aquifer Recharge Potential (ARP) map V.2024.3 for the Madera & North Kings Local Investigation. ARP maps were developed using the [Local Investigation: Madera/North Kings - Texture model (Version 2024.3)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/ddd6d0d5-68e7-45c1-b9b1-d88de3cf1276 "Local Investigation: Madera/North Kings - Texture model (Version 2024.3)") Additional information on the ARP mapping process can be found on the [Aquifer Recharge Potential Mapping Process Document](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/7d33d618-38bc-4511-834c-6e791695f8e2 "Aquifer Recharge Potential Mapping Process Document"). File updated on 12/19/2024. *** Superseded Data Releases: * Aquifer Recharge Potential Maps (Version 2024.2) Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
The Pajaro Local Investigation focuses on providing tTEM data to support floodplain habitat rehabilitation, levee setback management, surface water-groundwater interaction, and groundwater recharge. The Pajaro Local Investigation is a collaboration between the Basin Characterization Program, DWR’s Flood-MAR Program, the Pajaro Valley GSA, UC Santa Cruz, the US Army Corps of Engineers, the Pajaro Regional Flood Management Agency and the Resource Conservation District of Santa Cruz. ## Datasets and Reports * [Pajaro - tTEM Data Report (Draft)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/5e3dd3d1-a295-433c-b67b-6f1f8a88dab2 "Pajaro - tTEM Data Report (Draft)") * [Pajaro - tTEM Data Report (Draft) Appendices) Appendices](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/4b6e3e2b-9b59-4e3a-a000-0d65dd9be2a6 "Pajaro - tTEM Data Report (Draft) Appendices") * [Pajaro - tTEM Data Report Addendum (Draft)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/a1430fe6-3962-4c8f-986b-30694955146a "Pajaro - tTEM Data Report Addendum (Draft)") * [Pajaro - tTEM Data (Preliminary)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/65115263-5b72-41b8-b2c4-f471b10e8c4e "Pajaro - tTEM Data (Preliminary)")
The URL provides access to adjusted snow water equivalent data for the 2021–present calendar years from [active snow sensors](https://cdec.water.ca.gov/reportapp/javareports?name=SnowSensors) in California. Data availability varies by station. Alternatively, the adjusted snow water equivalent data can be directly accessed and downloaded through the [CDEC Sensor Group JSON and CSV Web Services](https://cdec.water.ca.gov/dynamicapp/groupform). To retrieve the data, specify: Group ID: SW1 Desired Start and End Dates: in the request parameters
Survey Area 6 - Data Report Appendices (part 1) - Solano, South American, North American, Yolo, Sutter, South Yuba, and North Yuba
Appendices Part 1 to the Data Report for Survey Area 6 (Solano, South American, North American, Yolo, Sutter, South Yuba, and North Yuba groundwater subbasins). File updated on 5/26/2023.
Habitat data for year 2011 from the California Environmental Data Exchange Network (CEDEN).
Data Dictionary - Hospital Building Data
Provides the basic information for general acute care hospital buildings such as height, number of stories, the building code used to design the building and year it was completed. The data is sorted by counties and cities. Structural Performance Categories (SPC ratings) are also provided. SPC ratings range from 1 to 5 with SPC 1 assigned to buildings that may be at risk of collapse during a strong earthquake and SPC 5 assigned to buildings reasonably capable of providing services to the public following a strong earthquake. Where SPC ratings have not been confirmed by the Department of Health Care Access and Information (HCAI) yet, the rating index is followed by 's'. A URL for the building webpage in HCAI/FDD eServices Portal is also provided to view projects related to any building.
6th Cycle RHNA Progress Report Data Dictionary
Ground Surface Displacement - Daily Mean
Includes information from field-based monitoring and laboratory analysis results. Information can be associated with an entire case or an individual report. Due to limited resources for HAB event response, a substantial time delay is anticipated for upload of this information to the data system. To rapidly determine the investigation status of a report, refer to the web map at: https://mywaterquality.ca.gov/habs/where/freshwater_events.html/
COVID-19 Vaccines Shipped, Delivered, On Hand (archived)
Legacy table based on previous "On Hand" metric up to May 28, 2021.
COVID-19 Vaccines Administered By HPI Quartile (2024-2025 updated vaccine archived)
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2006 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2006. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
2017 (v2020) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2021 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2021. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Q1-Q4 2021 Prescription Drugs Introduced to Market
Influenza-associated Hospitalization Rates from NHSN
The dataset contains influenza-associated hospital admissions are from Centers for Disease Control and Prevention’s (CDC) National Healthcare Safety Network (NHSN) Hospitalization dataset. The requirement to report COVID-19 and influenza-associated hospitalizations was effective November 1, 2024. CDPH pulls NHSN data from the CDC on the Wednesday prior to the publication of the report. Results may differ depending on which day data are pulled. Admission rates are calculated using population estimates from the P-3: Complete State and County Projections Dataset provided by the State of California Department of Finance (https://dof.ca.gov/forecasting/demographics/projections/). Reported weekly admission rates for the entire season use the population estimates for the year the season started. For more information on NHSN data including the protocol and data collection information, see the CDC NHSN webpage (https://www.cdc.gov/nhsn/index.html). Weekly hospitalization data are defined as Sunday through Saturday.
Station-Trace links to time-series downloads
Survey Area 1 - Salinas Valley AEM Data - PROVISIONAL
COVID-19 Progress Dashboard Data Dictionary
This data set lists active and historical enforcement actions records that are stored in the California Integrated Water Quality System (CIWQS). Enforcement actions are generally issued in response to one or more instances of non-compliance (violations) of a base regulatory measure. Enforcement actions can be monetary or non-monetary.
The URL provides access to adjusted snow water equivalent data for the 1954–1980 calendar years from [active snow sensors](https://cdec.water.ca.gov/reportapp/javareports?name=SnowSensors) in California. Data availability varies by station. Alternatively, the adjusted snow water equivalent data can be directly accessed and downloaded through the [CDEC Sensor Group JSON and CSV Web Services](https://cdec.water.ca.gov/dynamicapp/groupform). To retrieve the data, specify: Group ID: SW1 Desired Start and End Dates: in the request parameters
2020 (v2021) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
2020 (v2022) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Prospect Island - FloaTEM Test Technical Memo (Draft)
Technical Memo (draft) for the FloaTEM test data collection effort performed at Prospect Island. The Technical Memo contains information about data collection and the process to invert for the data for electrical resistivity values vs depth, a preliminary interpretation of the data, and a comparison to existing tTEM and AEM data. File updated on 8/14/2025.
Habitat data for year 2023 from the California Environmental Data Exchange Network (CEDEN).
Analysis Tool - Data2HSM via Smart Interpretation
Smart Interpretation (SI) is a semi-automatic Python tool for delineating continuous hydrogeologic surfaces from airborne electromagnetic data products, including inverse resistivity and coarse-fraction models. File contains a preliminary description of the Data2HSM via Smart Interpretation tool. Tool expected to be publicly available in Early 2025.
Western San Joaquin Valley Local Investigation
The Western San Joaquin Valley Local Investigation focuses on providing advanced data collection, digitization, and analysis to support deep aquifer characterization, subsidence mitigation, and groundwater recharge. ## Datasets and Reports * [Digitized Lithology and Geophysical logs - Western San Joaquin Valley Local Investigation](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/8757704f-6f98-484d-bd4c-eb2fa08ac080 "Western San Joaquin Valley Local Investigation") * [Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 5 ](https://data.cnra.ca.gov/dataset/aem/resource/366d53c0-6387-42d3-a39f-68aed6291853 "Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 5") * [AEM datasets - Statewide AEM Surveys, Survey Area 5](https://data.cnra.ca.gov/dataset/aem/resource/e0710451-2b66-485b-aacb-a9231f5de260 "AEM datasets - Statewide AEM Surveys, Survey Area 5")
Crashes raw data file of 2022; Updated: 1/15/2026 7:17:28 PM
2016-2018 (v2019) Technical Notes-Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2019 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2019. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
2016-2019 (v2020) ReadMe-Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
SWAMP Toxicity Summary Results - Data Dictionary
Survey Area 5 - Data Report - Kings, Madera, and Chowchilla
Data Report for Survey Area 5 (Kings, Madera, and Chowchilla groundwater subbasins). File updated on 4/24/2023.
2018 (v2022) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
2023 (v2024) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Parties raw data file of 2017; Updated: 1/15/2026 7:40:26 PM
The URL provides access to adjusted snow water equivalent data for the 2011–2022 calendar years from active snow sensors in California. Data availability varies by station. Alternatively, the adjusted snow water equivalent data can be directly accessed and downloaded through the [CDEC Sensor Group JSON and CSV Web Services](https://cdec.water.ca.gov/dynamicapp/groupform). To retrieve the data, specify: Group ID: SW1 Desired Start and End Dates: in the request parameters
Survey Area 6 - Data Report Appendices (Part 2) - Solano, South American, North American, Yolo, Sutter, South Yuba, and North Yuba
Appendices Part 2 to the Data Report for Survey Area 6 (Solano, South American, North American, Yolo, Sutter, South Yuba, and North Yuba groundwater subbasins). File updated on 5/26/2023.
Survey Area 5 - Data Report - Merced, Turlock, and Modesto
Data Report for Survey Area 5 (Merced, Turlock, and Modesto groundwater subbasins). File updated on 4/24/2023.
By Primary Language, Certified Eligibles
This is the file for Certified Eligibles by Primary Language
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2025 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2025. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Surface Water Toxicity - Summary Results
This resource is a subset of records from the CEDEN Toxicity database, filtered to contain only summary records. Summary records are entries in the database that summarize the results from multiple replicate toxicity tests of the same sample water. The replicate results are available in the Surface Water Toxicity - Replicate Results resource. The date appended to the end of the filename (YYYY-MM-DD) indicates when the data were last refreshed from the CEDEN database.
Water Chemistry data for year 2023 from the California Environmental Data Exchange Network (CEDEN).
Flown flight lines for Survey Area 2. Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85).
Flown flight lines for Survey Area 5 (Pleasant Valley, Westside, Kings, Madera, Chowchilla, Merced, Turlock, Modesto, and Delta-Mendota groundwater subbasins). Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85).
Tissue data for year 2020 from the California Environmental Data Exchange Network (CEDEN).
Habitat data for year 2019 from the California Environmental Data Exchange Network (CEDEN).
Fecal Indicator Bacteria Monitoring Results - before 2010
COVID-19 Vaccines Administered By Demographics By County (Booster Metric archived)
Legacy data set with Booster metric. Replaced with "Up to Date" CDC metric on 6/27/2023.
AEM data package containing a provisional AEM data acquisition parameters, raw, inverted, and interpreted AEM data for Sacramento Valley and Sierra Valley groundwater basins only. Eel River Valley AEM data to be added when available. Survey Area 7 covers the following groundwater subbasins: Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope, Bowman, Bend, Millville, South Battle Creek, Anderson, Enterprise, Eel River, Sierra Valley. File updated on 8/7/2023.
Data Report for Survey Area 8. Survey Area 8 cover Seaside, Monterey, 180/400 (partially surveyed Summer 2021), Eastside (partially surveyed Summer 2021), Langley, Pajaro, Santa Cruz Mid-County, Santa Margarita, San Benito, and Llagas (partial) groundwater subbasins. File updated on 10/20/2023.
2021 (v2022) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Tissue data for year 2015 from the California Environmental Data Exchange Network (CEDEN).
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2017 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2017. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
This is a point feature class of environmental monitoring stations maintained in the California Department of Water Resources’ (hereafter the Department) Water Data Library Database (WDL) for discrete “grab” water quality sampling stations. The WDL database contains DWR-collected, current and historical, chemical and physical parameters found in drinking water, groundwater, and surface waters throughout the state. This dataset is comprised of a Stations point feature class and a related “Period of Record by Station and Parameter” table. The Stations point feature class contains basic information about each station including station name, station type, latitude, longitude, and the dates of the first and last sample collection events on record. The related Period of Record Table contains the list of parameters (i.e. chemical analyte or physical parameter) collected at each station along with the start date and end date (period of record) for each parameter and the number of data points collected. The Lab and Field results data associated with this discrete grab water quality stations dataset can be accessed from the California Natural Resources Agencies Open Data Platform at https://data.cnra.ca.gov/dataset/water-quality-data or from DWR’s Water Data Library web application at https://wdl.water.ca.gov/waterdatalibrary/WaterQualityDataLib.aspx
CEDEN Water Chemistry Data (Zipped CSV - All Years)
Zipped CSV file containing all water chemistry data from the California Environmental Data Exchange Network (CEDEN).
Q1-Q4 2022 Prescription Drugs Introduced to Market
The url provides access to monthly snow water content and depth data for [active snow courses in California](https://cdec.water.ca.gov/reportapp/javareports?name=SnowCourses). Currently, the data is displayed in a stacked format for each variable—snow water content and snow depth. In the future, these variables will be presented side by side for easier comparison.
Respiratory Virus Dashboard Metrics: Deaths
2018 (v2021) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Survey Area 7 - Data Report - Redding Area
Data Report for Survey Area 7 (Redding Area - South Battle Creek, Bowman, Anderson, Enterprise, and Millville groundwater subbasins). File updated on 6/30/2023.
The Dry Well Reporting System is for use by individuals not served by a public water system experiencing problems with their water supply and agencies receiving calls from those individuals. How is this information going to be used? This information is intended to inform state and local agencies on drought impacts on household water supplies. The Household Water Supply Shortage Reporting System was first created as part of our emergency response efforts to previous droughts, and we are continuing to gather information relating to shortages of household water from private well or surface water sources. Collection of data is not to be construed as application for local, state or federal assistance. Individuals interested in financial assistance will be directed towards appropriate resources. Data Collection Entails: - Contact information for Household experiencing water shortage - Water Shortage Problem Information and Location - Financial Resources Available - Well Log Data (optional) - Reporting Agency or Local Government Information
2016-2022 (v2023) ReadMe-Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
DHCS Licensed Mental Health Rehabilitation Centers (MHRC) and Psychiatric Health Facilities (PHF)
Tissue data for year 2001 from the California Environmental Data Exchange Network (CEDEN).
2019 (v2021) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2018 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2018. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
California Department of Housing and Community Development
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2013 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2013. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2011 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2011. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Safe to Swim 1969-2010 (no longer updated)
This data resource will no longer be updated. Please use "Safe to Swim Results/Geomeans before 2010" resource instead.
Domestic and Irrigation Wells (GIS Feature Service)
Information for domestic and irrigation wells are based on DWR’s Online System for Well Completion Reports (OSWCR). Well uses that are specified on well completion reports have been grouped into domestic wells, irrigation wells (See attribute 'B118WellUse'). The complete Well Completion Report Dataset is available at https://data.cnra.ca.gov/dataset/well-completion-reports. This service is under development as part of of ongoing enhancements to CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.
2018 (v2020) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Flown flight lines for Survey Area 10. Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85). File updated 3/22/2024.
InjuredWitnessPassengers raw data file of 2022; Updated: 1/15/2026 7:18:13 PM
Wastewater Facilities Inspections Data Dictionary
Percentage of Deaths Attributed to COVID-19 in...
Tissue data for year 2012 from the California Environmental Data Exchange Network (CEDEN).
Water Chemistry data for year 2017 from the California Environmental Data Exchange Network (CEDEN).
#Overview of Tools The CalGW Subsurface Viewer, SGMA Data Viewer, and AEM 3D Viewer are innovative tools that allows GSAs and stakeholders to view AEM datasets online. These GIS-based tools enable datasets to be visualized in a three-dimensional space, allowing users to zoom in, rotate, and explore the data from multiple angles. The tools can be accessed on a computer or mobile device and do not require downloading data or using specialized software ###AEM Electrical Resistivity AEM electrical resistivity data shows the distribution of electrical resistivity values within the aquifer, where electrical resistivity describes a material's ability to resist an electric current. Generally, materials with higher electrical resistivity values correspond to coarse-grain dominated materials, like sands and gravels. Generally, materials with lower electrical resistivity values correspond to fine-grain dominated materials, like silts and clays, or materials saturated with fluids that have a high concentration of total dissolved solids, like brine or seawater. ###AEM Interpretation for Coarse Fraction AEM electrical resistivity data are interpreted for sediment texture, described as coarse fraction. The interpretation is supported by incorporating existing lithology and geophysical logging data into the transform. ##[CalGW Subsurface Viewer](https://subsurfaceviewer.water.ca.gov/#/?locationType=County&expanded=false&view=chart&dataType=resistivity "CalGW Subsurface Viewer) Data can be viewed by groundwater basin or by county. The **2D Tab** enables users to explore data profiles and switch between electrical resistivity and coarse-fraction values. The viewer also provides a map view showing the locations of subsurface data. The **3D Tab** shows AEM electrical-resistivity values as voxels, which can be explored using the navigation widgets. Depth and profile slices can be generated with the slice widget. ##[SGMA Data Viewer](https://sgma.water.ca.gov/webgis/?appid=SGMADataViewer#basincharac "SGMA Data Viewer") The SGMA Data Viewer **Basin Characterization** tab serves as a one-stop shop for AEM-related data. At the bottom of the tab, the **AEM Electrical Resistivity** section includes AEM profile images (click a survey-line segment to display the profile in a popup window), the shallow-subsurface average, and a depth-slice animation. At the top of the tab, the **Groundwater Recharge Map** section provides the AEM Surficial Recharge map, which shows average coarse-fraction values in the top 50 feet. ##[AEM 3D Viewer (Beta)](https://dwr.maps.arcgis.com/apps/instant/3dviewer/index.html?appid=f781b14f42ab45e5b72f32cf07af899c "AEM 3D Viewer (r") The AEM 3D Viewer displays AEM electrical-resistivity values as voxels, which can be explored using the navigation widgets. Depth and profile slices can be generated with the slice widget. The map inset in the right pane shows average electrical-resistivity values in the shallow subsurface (0–17 m). Zooming in reveals survey-line segments and the locations of high-quality lithology and geophysical logs. ##Limitations Data are provisional. Data Viewers are under development. AEM Data Interpretation Disclaimer: The AEM Data Viewer shows lithology interpretations based on available existing supporting data and are designed for informational purposes only. These resources are not intended for regulatory purposes as part of the Sustainable Groundwater Management Act. The Department of Water Resources makes no warranties, representations or guarantees, either expressed or implied, as to the accuracy, completeness, correctness, or timeliness of the information that is presented in the lithology transform and lithology interpretations provided in this report, nor accepts or assumes any liability arising from use of this report or underlying data.
A compiled list of per- and polyfluoroalkyl substances (PFAS) analysis results for the SWP Routine Water Quality Monitoring Project. These samples were collected three times per year at three sites, later increased to four times per year at six sites. Sampling for PFAS compounds began in 2020 and all results are available in this file.
A list of data flags and qualifiers used in the SWP water quality data review process done by the Division of Operations and Maintenance. This list includes the flags/qualifiers and a description of what they mean. These flags/qualifiers are shown on the data tables in the "Sample Flag" column. For data points with multiple flags/qualifiers, each successive one is separated by a space or comma.
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2012 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2012. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 5/5/2023 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
This file contains the definitions of the data displayed in the SAFER Dashboard.
Water Chemistry data for year 2014 from the California Environmental Data Exchange Network (CEDEN).
By Race/Ethnicity and Age Group, Certified Eligibles
This is the file for Certified Eligibles by Race/Ethnicity and Age Group
These data is derived from the first part of the most recent iteration of the Medi-Cal Certified Eligible Counts, by Month of Eligiblity, Zip Code, and Sex dataset. It contains counts of individuals certified eligible for Medi-Cal, by Month of Eligibility, Zip Code, and Sex, from Calendar Years 2005 to 2009.
AEM data package containing a provisional AEM data acquisition parameters, raw, inverted, and interpreted AEM data. Survey Area 8 cover Seaside, Monterey, 180/400 (partially surveyed Summer 2021), Eastside (partially surveyed Summer 2021), Langley, Pajaro, Santa Cruz Mid-County, Santa Margarita, San Benito, and Llagas (partial) groundwater subbasins. File updated on 10/20/2023.
The manual provides guidelines and standardized procedures for conducting snow surveys to measure snow depth and water content. It covers various aspects of the snow survey process, ensuring consistency and accuracy in data collection. It describes the equipment used (snow tubes, scales, thermometers) and the step-by-step process for measuring snow depth and water content, provides guidelines for recording and reporting data, ensuring precision in measurements, includes instructions for selecting representative sites that accurately reflect snow conditions across a larger area. It also includes safety protocols for the survey.
2005-2014 (v5.0.2) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
The dataset contains hospitalization counts and rates, statewide and by county, for 6 conditions plus 3 composite measures. Hospitalizations for these conditions are potentially preventable through access to high-quality outpatient care. The conditions include: asthma (age 2-17), diabetes short-term complications (age 6-17), gastroenteritis (age 3 months-17 years), perforated appendix (age 1-17), urinary tract infections (age 3 months-17 years), and low birth weight (<2500 grams). The composite measures (age 6-17) include overall, acute conditions, and chronic conditions. The data provides a good starting point for assessing quality of health services in the community. The data does not measure hospital quality. Note: In 2015, HCAI only released the first three quarters of data due to a change in the reporting of diagnoses from ICD-9-CM to ICD-10-CM codes, effective October 1, 2015. Due to the significant differences resulting from the code change, the ICD-9-CM data is distinguished from the ICD-10-CM data in the data file beginning in 2016. The calculation of risk-adjusted rates is not available in the current version of PDI software.
Tissue data for year 2016 from the California Environmental Data Exchange Network (CEDEN).
Water Chemistry data for year 2007 from the California Environmental Data Exchange Network (CEDEN).
Tissue data for year 2010 from the California Environmental Data Exchange Network (CEDEN).
Water Chemistry data for year 2025 from the California Environmental Data Exchange Network (CEDEN).
2019 (v2022) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2009 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2009. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Habitat data for year 2025 from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN).
2015-Q1-Q3 (v5.0) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
The dataset contains hospitalization counts and rates, statewide and by county, for 12 ambulatory care sensitive conditions plus 4 composite measures. Hospitalizations due to these medical conditions are potentially preventable through access to high-quality outpatient care. The conditions include: diabetes short-term complications; perforated appendix; diabetes long-term complications; chronic obstructive pulmonary disease (COPD) or asthma in older adults (age 40 and over); hypertension; heart failure; dehydration; bacterial pneumonia; urinary tract infection; angina without procedure (retired, 2016); uncontrolled diabetes; asthma in younger adults (age 18-39); and lower-extremity amputation among patients with diabetes. The composite measures include overall, acute conditions, chronic conditions, and diabetes (new, 2016). The data provides a good starting point for assessing quality of health services in the community. The data does not measure hospital quality. Note: In 2015, HCAI only released the first three quarters of data due to a change in the reporting of diagnoses from ICD-9-CM to ICD-10-CM codes, effective October 1, 2015. Due to the significant differences resulting from the code change, the ICD-9-CM data is distinguished from the ICD-10-CM data in the data file beginning in 2016.
Survey Area 7 - Data Report Appendices - Eel River Valley
Appendices to the Data Report for Survey Area 7 (Eel River Valley Groundwater Basin). File updated on 9/20/2023.
Habitat data for year 2012 from the California Environmental Data Exchange Network (CEDEN).
Tissue data for year 2009 from the California Environmental Data Exchange Network (CEDEN).
2020 (v2023) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Habitat data for year 2007 from the California Environmental Data Exchange Network (CEDEN).
San Joaquin Valley Regional Investigation
The San Joaquin Valley Regional Investigation focuses on providing AEM data, digitized lithology and geophysical logging data, texture model development, defining important clay (e.g. the Corcoran Clay) and development of aquifer recharge potential maps. ## Maps and Models Mapping and modeling products expected in mid-2026. ## Datasets and Reports * [Digitized Lithology and Geophysical logs - Local Investigation: Madera/North Kings](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/1d08d5ff-427d-4d77-9d39-89caca3c34fe "Digitized Lithology and Geophysical logs - Local Investigation: Madera/North Kings") * [Digitized Lithology and Geophysical logs - Western San Joaquin Valley Local Investigation](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/8757704f-6f98-484d-bd4c-eb2fa08ac080 "Western San Joaquin Valley Local Investigation") * [Digitized Lithology and Geophysical logs - Four County Area](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/41ec1f67-cb0c-4d13-9d81-e514cdb1f880 "Digitized Lithology and Geophysical logs - Four County Area") * [Digitized Lithology and Geophysical logs - Kern County](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/d0f5505f-d634-423e-9329-7d553030aff8 "Digitized Lithology and Geophysical logs - Kern County") * [Digitized Lithology and Geophysical logs - San Joaquin Valley (other)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/8fffe374-d89f-4c40-b115-307e8752c537 "Digitized Lithology and Geophysical logs - San Joaquin Valley (Other)") * [Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 4 ](https://data.cnra.ca.gov/dataset/aem/resource/eb09227e-32c7-4e11-94f5-359c9b202734 "Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 4") * [Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 5 ](https://data.cnra.ca.gov/dataset/aem/resource/366d53c0-6387-42d3-a39f-68aed6291853 "Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 5") * [AEM datasets - Statewide AEM Surveys, Survey Area 4](https://data.cnra.ca.gov/dataset/aem/resource/c282ee67-de22-45df-9293-b6478c9d3b24 "AEM datasets - Statewide AEM Surveys, Survey Area 4") * [AEM datasets - Statewide AEM Surveys, Survey Area 5](https://data.cnra.ca.gov/dataset/aem/resource/e0710451-2b66-485b-aacb-a9231f5de260 "AEM datasets - Statewide AEM Surveys, Survey Area 5")
Tissue data for year 2004 from the California Environmental Data Exchange Network (CEDEN).
Wastewater Facilities Inspection Records - 1987 through 2021
Records of inspections of wastewater facilities
Prescription Drugs WAC Increases - Data Dictionary
Crashes raw data file of 2016; Updated: 12/31/2025 8:44:03 PM
[ARCHIVE 2024] CalCAT Forecasts and Nowcasts Historical Archive
Zipped file containing one file each for COVID-19 Nowcasts, COVID-19 and Influenza Forecasts and Variant Proportion Nowcasts as shown on CalCAT throughout 2024. The data dictionaries for the files are available at https://data.chhs.ca.gov/dataset/calcat.
Survey Area 4 - Data Report Appendices - Kern County & White Wolf
Appendices to the Data Report for Survey Area 4 (Kern County and White Wolf groundwater subbasins. File updated on 2/22/2023.
Notices of Availability of surplus locally owned land and description of each site/parcel. Notices are submitted to HCD by local public agencies (includes cities, counties, special districts, and certain other entities) disposing of land as per AB1486, pursuant to Government Code Section 54221. Data is self-reported by the local public agency. HCD does not independently verify information reported by agencies in their Notices of Availability. *NOTE THAT ACREAGE INFO IS NOT PARCEL-ACCURATE HERE; some acreages are calculated to averages per site or NoA while others are simply the total acreage for the site/NoA carried over for each discrete parcel; this sheet has been tripled-check to ensure the parcels in the _sites tab all appear as individual entries here so there's very likely complete accuracy between the two sheets
The Drinking Water Needs Assessment, required to be carried out by SAFER Program, is an annual analysis of Public Water Systems, State Small Water Systems, and domestic wells. The Needs Assessment is comprised of four components: the Failing Water System List (Failing list), the Risk Assessment, the Cost Assessment, and the Affordability Assessment. The appendices of the report detail the data sources, calculation methodology, and scoring approach used to generate the data displayed in the SAFER Dashboard.
Survey Area 6 - Data Report Appendices - Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, and Livermore Valley
Appendices to the Data Report for Survey Area 6 (Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, and Livermore Valley groundwater subbasins). File updated on 5/24/2023.
Statewide COVID-19 Vaccines Administered by Zip Code
Appendices to the Data Report for Survey Area 10. File updated on 12/11/2024.
Tissue data for year 2002 from the California Environmental Data Exchange Network (CEDEN).
CEDEN Habitat Data (Parquet File Format - All Years)
This resource contains all habitat data available from the CEDEN database, in the [Apache Parquet file format]((https://parquet.apache.org/)). The data is partitioned by year. Parquet is a free and open source data storage format that allows for fast and efficient processing of large datasets. It is compatible with a variety of data analysis platforms, including the R and Python programming languages, through the [Apache Arrow platform](https://arrow.apache.org/). An example showing how to use this data with the R programming language is available [here](https://gist.github.com/daltare/209acf0789b4f1bdec272c323ba45315).
Zipped CSV file containing all toxicity data from the California Environmental Data Exchange Network (CEDEN).
2016 (v2021) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Water Chemistry data for year 2004 from the California Environmental Data Exchange Network (CEDEN).
Wastewater Enforcement Actions Data Dictionary
2018 (v2019) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
This is a point feature class of environmental monitoring stations maintained in the California Department of Water Resources’ (hereafter the Department) Water Data Library Database (WDL) for discrete “grab” water quality sampling stations. The WDL database contains DWR-collected, current and historical, chemical and physical parameters found in drinking water, groundwater, and surface waters throughout the state. This dataset is comprised of a Stations point feature class and a related “Period of Record by Station and Parameter” table. The Stations point feature class contains basic information about each station including station name, station type, latitude, longitude, and the dates of the first and last sample collection events on record. The related Period of Record Table contains the list of parameters (i.e. chemical analyte or physical parameter) collected at each station along with the start date and end date (period of record) for each parameter and the number of data points collected. The Lab and Field results data associated with this discrete grab water quality stations dataset can be accessed from the California Natural Resources Agencies Open Data Platform at https://data.cnra.ca.gov/dataset/water-quality-data or from DWR’s Water Data Library web application at http://wdl.water.ca.gov/waterdatalibrary/index.cfm.
Survey Area 4 - Supporting Data - PROVISIONAL
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 10/17/2022 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
This dataset identifies California’s eligibility groups by aid code. An aid code may appear more than once if multiple populations are represented in one aid code and can be identified and mapped to distinct T-MSIS groups.
Water Chemistry data for year 2024 from the California Environmental Data Exchange Network (CEDEN).
Habitat data for year 2009 from the California Environmental Data Exchange Network (CEDEN).
Raw AEM data and auxiliary data for Survey Area 9 (Basin Characterization Pilot Study 1). File updated 10/9/2023.
Dry Domestic Well Susceptibility (Technical Notes)
DWR, in coordination with the State Water Resources Control Board, has developed an interactive dashboard, called the [Dry Domestic Well Susceptibility within Groundwater Basins Dashboard](https://storymaps.arcgis.com/stories/f2b252d15a0d4e49887ba94ac17cc4bb#ref-n-aoS5Sy) (Dry Well Susceptibility Dashboard), to identify areas within groundwater basins throughout the State that may be prone to water supply shortages due to domestic drinking water wells going dry. The dashboard identifies the density of "susceptible” domestic wells per square mile based on recent groundwater level measurements and modeled future depth to water. If the modeled future depth to water falls below the dry well depth of a domestic well, the well is labelled susceptible. The Dry Well Susceptibility Dashboard is housed on the California’s Groundwater Live web-based platform which contains the latest information and data on groundwater conditions across the State. The State, local agencies, and well owners can use this dashboard to anticipate where wells may be susceptible to inform drought preparedness decision-making and resource allocation. __If you are currently experiencing a dry domestic well, you can report that to DWR’s [Dry Well Reporting System](www.mydrywell.ca.gov) which will connect you with available local assistance.__ The query for domestic wells was based on DWR’s Online System for Well Completion Reports (OSWCR). Well uses that are specified on well completion reports have been grouped into domestic wells (See attribute 'B118WellUse'). The complete Well Completion Report Dataset is available at https://data.cnra.ca.gov/dataset/well-completion-reports. The complete DWR Periodic Groundwater Levels dataset is available at https://data.cnra.ca.gov/dataset/periodic-groundwater-level-measurements. This service is under development as part of ongoing enhancements to CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. _DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data._ _This dashboard and the underlying analysis provide a density map of domestic wells that are susceptible to going dry if recent groundwater trends continue. The map can be used to evaluate the relative density distribution within groundwater basins. However, the map should not be used to estimate the absolute number of domestic wells that are susceptible to going dry for any area or groundwater level scenario. While the applied groundwater level scenario is based on best available datasets, the scenario is hypothetical, and is chosen to resolve regional differences in the density of domestic wells that are susceptible to going dry. Available groundwater level data are interpolated and projected to domestic wells locations. To achieve near statewide coverage for this analysis, groundwater level measurements are projected up to 10 miles in areas where no local monitoring exists. Filling these groundwater level data gaps with new monitoring stations will improve the reliability of the Dry Well Susceptibility Analysis. The applied model for the depth at which a domestic well is susceptible to going dry is simplified and uncalibrated and is not intended to represent any specific well failure mode. Future calibration of this model, and consideration of well construction details will improve the reliability of the Dry Well Susceptibility Analysis._
2017 (v2022) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
2021 (v2023) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
For up to 25 percent of a jurisdiction’s moderate-income regional housing need allocation, the planning agency may include the number of units in an existing multifamily building that were converted to deed-restricted rental housing for moderate-income households by the imposition of affordability covenants and restrictions for the unit. Before adding information to this table, jurisdictions must ensure housing developments meet the requirements described in Government Code 65400.2(b).
Statewide COVID-19 Vaccines Administered By County
Q1-Q4 2020 Prescription Drugs Introduced to Market
2024 (v2025) ReadMe-Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Habitat data for year 2008 from the California Environmental Data Exchange Network (CEDEN).
InjuredWitnessPassengers raw data file of 2018; Updated: 1/15/2026 7:36:10 PM
Survey Area 6 - Supporting Data - PROVISIONAL
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 1/25/2023 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
Water Chemistry data for year 2015 from the California Environmental Data Exchange Network (CEDEN).
Data Report for Survey Area 9 (Basin Characterization Pilot Study 1) - Madera and Kings subbasins. File updated on 2/28/2024.
Water Chemistry data for year 2003 from the California Environmental Data Exchange Network (CEDEN).
Respiratory Virus Dashboard Metrics - Deaths Data Dictionary
Water Chemistry data for year 2002 from the California Environmental Data Exchange Network (CEDEN).
Period of Record by Station and Parameter
Period of record for water quality data by station and parameter ### Parameters List (for search results): Aminomethyl)phosphonic acid, *No Lab Analyses (Field Measures Only), 1,1,1,2-Tetrachloroethane, 1,1,1-Trichloroethane, 1,1,2,2-Tetrachloroethane, 1,1,2-Trichloroethane, 1,1,2-Trichlorotrifluoroethane, 1,1-Dichloroethane, 1,1-Dichloroethene, 1,1-Dichloropropene, 1,2,3-Trichlorobenzene, 1,2,3-Trichloropropane, 1,2,4-Trichlorobenzene, 1,2,4-Trimethylbenzene, 1,2-Dibromo-3-chloropropane (DBCP), 1,2-Dibromoethane (EDB), 1,2-Dichlorobenzene, 1,2-Dichloroethane, 1,2-Dichloropropane, 1,3,5-Trimethylbenzene, 1,3-Dichlorobenzene, 1,3-Dichloropropane, 1,4-Dichlorobenzene, 1-Naphthol, 100-Day Biochemical Oxygen Demand, 2,2-Dichloropropane, 2,3,6-Trichlorobenzoic Acid, 2,3,7,8-Tetrachlorodibenzo-p-dioxin, 2,3-Dibromopropionic acid, 2,4,5-T, 2,4,5-TP (Silvex), 2,4-D, 2,4-DB, 2-Chloroallyl diethyldithiocarbamate (CDEC), 2-Chlorotoluene, 3-Hydroxycarbofuran, 4,4'-Dibromoctafluorobiphenyl, 4-Bromofluorobenzene, 4-Chlorotoluene, 4-Day Biochemical Oxygen Demand, 4-Isopropyltoluene, 5-Day Biochemical Oxygen Demand, 6-Day Biochemical Oxygen Demand, 7-Day Biochemical Oxygen Demand, Acenaphthene, Acenaphthylene, Acephate, Acifluorfen, Alachlor, Aldicarb, Aldicarb sulfone, Aldicarb sulfoxide, Aldrin, Allethrin, Aminomethylphosphonic Acid (AMPA), Anthracene, Asbestos, Chrysotile, Atrazine, Atrazine-Simazine Mix, Azinphos methyl (Guthion), BHC, BHC-alpha, BHC-beta, BHC-delta, BHC-gamma (Lindane), Benfluralin, Bentazon, Benz(a)anthracene, Benzene, Benzo(a)pyrene, Benzo(b)fluoranthene, Benzo(ghi)perylene, Benzo(k)fluoranthene, Bicarbonate (HCO3-), Bifenthrin, Biochemical Oxygen Demand, Bis(2-ethylhexyl) adipate, Bromacil, Bromide, Bromobenzene, Bromochloroacetic Acid (BCAA), Bromochloroacetonitrile, Bromochloromethane, Bromodichloromethane, Bromoform, Bromomethane, Butachlor, Butyl benzyl phthalate, Captafol, Captan, Carbaryl, Carbofuran, Carbon tetrachloride, Carbonaceous Biochemical Oxygen Demand, Carbophenothion (Trithion), Chemical Oxygen Demand (COD), Chlordane, Chlorinated Hydrocarbons (General), Chlorobenzene, Chloroethane, Chloroform, Chloromethane, Chlorophyll a, Chloropicrin, Chloropropham, Chlorothalonil, Chlorpropham, Chlorpyrifos, Chorpropham, Chrysene, Clostridium perfringens, Color, Conductance, Cryptosporidium, Cyanazine, Cyanide, Cyfluthrin, Cypermethrin, DDD (all isomers), DDE (all isomers), DDT (all isomers), Dacthal (DCPA), Dalapon, Deltamethrin, Deltamethrin/Tralomethrin, Demeton (Demeton O + Demeton S), Di-n-butyl phthalate, Di-n-octyl phthalate, Diazinon, Dibenz(a,h)anthracene, Dibromoacetic Acid (DBAA), Dibromoacetonitrile, Dibromochloromethane, Dibromomethane, Dicamba, Dichlone, Dichloran, Dichloroacetic Acid (DCAA), Dichloroacetonitrile, Dichlorodifluoromethane, Dichloroprop, Dichloropropane - dichloropropene (D-D Mixture), Dichlorprop, Dicofol, Dicrotophos, Dieldrin, Diethyl phthalate, Dimethoate, Dimethyl phthalate, Dinoseb (DNPB), Dioxathion, Diquat, Dissolved Acid Hydrolyzable Phosphorus, Dissolved Aluminum, Dissolved Ammonia, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Bicarbonate (HCO3-), Dissolved Bismuth, Dissolved Boron, Dissolved Bromide, Dissolved Cadmium, Dissolved Calcium, Dissolved Carbonate (CO3--), Dissolved Chloride, Dissolved Chromium, Dissolved Chromium, hexavalent (Cr6+), Dissolved Cobalt, Dissolved Copper, Dissolved Fluoride, Dissolved Gallium, Dissolved Germanium, Dissolved Hardness, Dissolved Hydroxide (OH-), Dissolved Iodide, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Mercury, Dissolved Molybdenum, Dissolved Nickel, Dissolved Nitrate, Dissolved Nitrate + Nitrite, Dissolved Nitrite, Dissolved Organic Carbon, Dissolved Organic Nitrogen, Dissolved Ortho-phosphate, Dissolved Phosphorus, Dissolved Potassium, Dissolved Selenium, Dissolved Silica (SiO2), Dissolved Silver, Dissolved Sodium, Dissolved Strontium, Dissolved Sulfate, Dissolved Thallium, Dissolved Titanium, Dissolved Total Kjeldahl Nitrogen, Dissolved Uranium, Dissolved Vanadium, Dissolved Zinc, Disulfoton, Diuron, Endosulfan (mixed isomers), Endosulfan sulfate, Endosulfan-I, Endosulfan-II, Endothal, Endrin, Endrin aldehyde, Escherichia coli, Esfenvalerate, Ethion, Ethyl benzene, Ethylbenzene, Ethylene Dibromide, Ethylenethiourea, Fecal Coliform, Fenthion, Fenvalerate, Fibers > 10 ?m Asbestos, Chrysotile, Filtered Water Turbidity, Fluoranthene, Fluorene, Formetanate hydrochloride, Giardia lamblia, Glyphosate, Haloacetic Acid Formation Potential (HAAFP), Heptachlor, Heptachlor epoxide, Hexachlorobenzene, Hexachlorobutadiene, Hexachlorocyclopentadiene, Indeno(1,2,3-cd)pyrene, Inositol 1,4,5-Trisphosphate, Isopropylbenzene, MCPA, MCPP, Malathion, Metalaxyl, Methamidophos, Methidathion, Methiocarb, Methomyl, Methoxychlor, Methyl tert-butyl ether (MTBE), Methylene Blue Active Substances (MBAS), Methylene chloride, Metolachlor, Metribuzin, Mevinphos, Molinate, Monobromoacetic Acid (MBAA), Monochloroacetic Acid (MCAA), Naled, Naphthalene, Napropamide, Norflurazon, Oil and Grease, Organic Phosphorus Pesticides (OPP), Oxamyl, Oxyfluorfen, PCB's, PCB-1016, PCB-1221, PCB-1232, PCB-1242, PCB-1248, PCB-1254, PCB-1260, Paraoxon, Parathion, Ethyl, Parathion, Methyl, Pendimethalin, Pentachloronitrobenzene (PCNB), Pentachlorophenol (PCP), Permethrin, Perthane, Phenanthrene, Phenol, Phenols, Phenoxy Growth Regulators, Pheophytin a, Phorate, Phorate Sulfone, Phosalone, Phosmet, Picloram, Prallethrin, Profenofos, Prometryn, Pronamide, Propachlor, Propanil, Propargite, Propetamphos, Propham, Propoxur, Purgeable Halocarbons, Pyrene, Ronnel, Settleable Solids, Simazine, Specific Conductance, Styrene, Sulfallate, Sumithrin, Suspended + Volatile Suspended Solids, Suspended Solids, TEPP (Tetraethyl Pyrophosphate), Tannin and Lignin, Tefluthrin, Telodrin, Tetrachloroethene, Tetrachloroethylene, Tetrachlorofluoromethane, Tetrachlorophenols, Tetradifon (Tedion), Thiobencarb, Thiodicarb, Threshold Odor, Toluene, Total Alkalinity, Total Aluminum, Total Ammonia, Total Antimony, Total Arsenic, Total Asbestos, Chrysotile, Total Barium, Total Beryllium, Total Bismuth, Total Cadmium, Total Calcium, Total Chromium, Total Chromium, hexavalent (Cr6+), Total Cobalt, Total Coliform, Total Copper, Total Cyanide, Total Dissolved Solids, Total Gallium, Total Germanium, Total Hardness, Total Iron, Total Kjeldahl Nitrogen, Total Lead, Total Lithium, Total Magnesium, Total Manganese, Total Mercury, Total Methylmercury, Total Molybdenum, Total Nickel, Total Oil and Grease, Total Organic Carbon, Total Organic Nitrogen, Total Ortho-phosphate, Total Phenols, Total Phosphorus, Total Selenium, Total Silver, Total Strontium, Total Sulfides, Total Suspended Solids, Total Thallium, Total Titanium, Total Vanadium, Total Xylene, (total), Total Zinc, Toxaphene, Tralomethrin, Trichloroacetic Acid (TCAA), Trichloroacetonitrile, Trichloroethene, Trichlorofluoromethane, Triclopyr, Trifluralin, Trihalomethane Formation Potential (THMFP), Turbidity, UV Absorbance @254nm, Vinyl chloride, Volatile Suspended Solids, Xylene, (total), bis(2-Ethylhexyl) phthalate, cis-1,2-Dichloroethene, cis-1,3-Dichloropropene, l-Cyhalothrin, m + p Xylene, m-Xylene, n-Butylbenzene, n-Propylbenzene, o,p'-DDD, o,p'-DDE, o,p'-DDT, o-Xylene, p,p'-DDD, p,p'-DDE, p,p'-DDT, p-Xylene, pH, s,s,s-Tributyl Phosphorotrithioate (DEF), sec-Butylbenzene, tert-Butylbenzene, trans-1,2-Dichloroethene, trans-1,3-Dichloropropene
Survey Area 3 - Supporting Data - Provisional
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 9/13/2022 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
InjuredWitnessPassengers raw data file of 2023; Updated: 1/15/2026 7:14:07 PM
Preventable Hospitalizations Data Dictionary
January 2026 Monthly Update (Q1-Q4 2025 data) - Prescription Drug WAC Increases (CSV)
January 2026 Monthly Update (Q1-Q4 2025 data) - Prescription Drugs Introduced to Market (CSV)
Local governments are required to inform HCD about any local tenant preference ordinance the local government maintains when the jurisdiction submits their annual progress report on housing approvals and production, per Government Code 7061 (SB 649, 2022, Cortese). Effective January 1, 2023, local governments adopting a tenant preference are required to create a webpage on their internet website containing authorizing local ordinance and supporting materials, no more than 90 days after the ordinance becomes operational.
Surface Water Toxicity - Replicate Results
This resource is a subset of records from the CEDEN Toxicity database, filtered to contain only replicate records. Replicate records are entries in the database that indicate the result of a single toxicity test for a water sample, and each water sample typically includes several replicate records. The replicate records for a particular water sample are then assessed and reported in a single summary record, and these summary records are available in the Surface Water Toxicity - Summary Results resource. The date appended to the end of this filename (YYYY-MM-DD) indicates when the data were last refreshed from the CEDEN database.
Raw AEM data and auxiliary data for Survey Area 11.
Water Chemistry data for year 2016 from the California Environmental Data Exchange Network (CEDEN).
2017 (v2019) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Crashes raw data file of 2023; Updated: 1/15/2026 7:13:07 PM
Habitat data for year 2005 from the California Environmental Data Exchange Network (CEDEN).
Parties raw data file of 2019; Updated: 1/15/2026 7:30:21 PM
2016 (v2019) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
2016 (v2019) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
COVID-19 Vaccines by ZIP Code Data Dictionary
InjuredWitnessPassengers raw data file of 2016; Updated: 12/31/2025 8:44:40 PM
COVID-19 Vaccines Administered By Demographics By County (Age 5+ archived)
Legacy table based on age 5+ denominators up to July 12, 2022.
Statewide AEM Survey Supporting Digitized Data - Summary of Revisions (1/14/2026)
##Revisions to the Statewide AEM Survey Supporting Digitized Data The attached files summarize revisions to the original Statewide AEM Survey Project digitized supporting data (lithology and geophysical logs). Complete datasets are available from the [Statewide AEM Survey website](https://data.cnra.ca.gov/dataset/aem "Statewide AEM Survey website") under the appropriate Survey Area Supporting Data file. Description of revisions below. ###Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) ###Geophysical log spreadsheet: * Oil and gas API numbers and links added File updated on 1/14/2026.
COVID-19 Vaccines Shipped, Delivered, On Hand by ZIP Code - Data Dictionary
2018 (v2021) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
2019 (v2020) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
The Prospect Island Local Investigation focuses on testing and examining the quality of FloaTEM data. In this investigation, the collected FloaTEM data were compared to existing AEM and tTEM data. The Prospect Island Local Investigation is a collaboration between the Basin Characterization Program and DWR's North Central Regional Office. ## Datasets and Memos * [FloaTEM Test Technical Memo (Draft)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/9a415521-f49a-44af-9ec3-1250bf0a4dab "FloaTEM Data Report (Draft)") - Survey description, electrical resistivity profiles, and discussion on comparison to existing AEM and tTEM data. * [FloaTEM Test Technical Memo (Draft) Appendices ](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/7f54ef5a-a4cd-4fb8-93c1-16e8d031bccf "FloaTEM Data Report (Draft) Appendices") * [FloaTEM Test Data (Preliminary)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/b9c3959d-8c37-4f1c-ac87-647ae803f3be "FloaTEM Test Data (Preliminary)")
Statewide COVID-19 Vaccines Administered by Zip Code (Age 12+ archived)
Legacy table based on age 12+ denominators up to November 9, 2021.
Industrial Discharge - Facility Information
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2014 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2014. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2015 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2015. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Zipped CSV file containing all benthic data from the California Environmental Data Exchange Network (CEDEN).
Habitat data for year 2024 from the California Environmental Data Exchange Network (CEDEN).
This GIS web application helps search and filter stations of interest, view and download data. For snow related data products, please use appropriate sensor filters and sensor types.
A compiled list of radiological/radionuclide analysis results for the SWP Routine Water Quality Monitoring Project. These samples are collected four times per year at 3-4 sites. Results prior to 2010 have not been compiled into CSV format but are available as laboratory reports. These reports can be obtained by submitting a [record request](https://californiadwr.mycusthelp.com/WEBAPP/_rs/(S(3q2tw3v2guzqsnh1objifgtv))/supporthome.aspx). Data from 2010 and after are available in CSV format in this dataset.
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2023 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2023. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Tissue data prior to year 2000 from the California Environmental Data Exchange Network (CEDEN).
Water Chemistry data for year 2018 from the California Environmental Data Exchange Network (CEDEN).
Four County Area- Digitized lithology and geophysical logs
Digitized lithology and geophysical logging data for the Four County Area Regional Investigation (covering Madera, Fresno, Kings, and Tulare counties). File updated 1/13/2026.
Survey Area 4 - Data Report Appendices - Kaweah, Tulare Lake, & Kaweah
Appendices to the Data Report for Survey Area 4 (Kaweah, Tulare Lake & Kaweah groundwater subbasins). File updated on 2/22/2023.
Drinking Water Risk Assessment Public Flat File
The URL provides access to adjusted snow water equivalent data for the 1991–2000 calendar years from [active snow sensors](https://cdec.water.ca.gov/reportapp/javareports?name=SnowSensors) in California. Data availability varies by station. Alternatively, the adjusted snow water equivalent data can be directly accessed and downloaded through the [CDEC Sensor Group JSON and CSV Web Services](https://cdec.water.ca.gov/dynamicapp/groupform). To retrieve the data, specify: Group ID: SW1 Desired Start and End Dates: in the request parameters
Includes information from individual reports submitted to the agency. Reports include suspected harmful algal blooms and are reviewed by technical staff to determine if an algal bloom is present. The report includes information describing the location, any observations of the area include water surface characteristics, photos, and any known responsible organizations in the area. Technical staff can add additional waterbody information.
Well Completion Report PDF Links (Local)
This table represents local/relative links to PDFs for records from the California Department of Water Resources' (DWR) Online System for Well Completion Reports (OSWCR) that can be downloaded from https://cadwr.app.box.com/v/WellCompletionReports
COVID-19 Vaccines Administered By HPI Quartile
Q1-Q4 2022 Prescription Drug WAC Increases - 5 Year History
Q1-Q4 2023 Prescription Drugs Introduced to Market
Pajaro - tTEM Data Report Addendum (Draft)
Data Report Addendum (draft) for the tTEM data collected for the Pajaro Local Investigation. The Data Report Addendum includes the process and interpretations of electrical resistivity for texture (as percent coarse-grained material). See [Pajaro - tTEM Data Report](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/5e3dd3d1-a295-433c-b67b-6f1f8a88dab2 "Pajaro - tTEM Data Report ") for tTEM survey area information and electrical resistivity profiles. File updated 3/20/2025.
Habitat data for year 2017 from the California Environmental Data Exchange Network (CEDEN).
Fecal Indicator Bacteria Monitoring Results - Data Dictionary
Conservation Actions, Listed Subcategory Format
Reported actions to respond to drought/water shortage and/or encourage conservation, as reported in the DRINC Portal monthly report. In this format, the actions are reported as a comma-separated list under the following categories: - demand reduction - supply augmentation - water restrictions - communication - addressing water waste - other
FHABS Data Disclaimer and Additional Information
This is important information data users have to look at it before going to the dictionary
Flown flight lines for Survey Area 3. Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85).
COVID-19 Vaccines Administered By Demographics By County (Age 16+ archived)
Legacy table based on age 16+ denominators up to May 17, 2021.
Flown flight lines as GIS Shapefile for Survey Area 8. Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85).
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2016 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2016. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
2020 (v2021) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Habitat data for year 2000 from the California Environmental Data Exchange Network (CEDEN).
COVID-19 Vaccines Administered By Demographics By County (2024-2025 updated vaccine archived)
Preventable Hospitalizations per 100,000
The nation spends billions annually on preventable hospitalizations.[1] This indicator provides the rates of preventable hospitalizations (per 100,000 population) for selected conditions. It is based upon a composite indicator for twelve ambulatory care-sensitive conditions. Examples include diabetes complications, adult asthma, hypertension, heart failure, dehydration, urinary tract infection, and bacterial pneumonia. Hospitalizations due to these conditions are potentially preventable through access to high-quality outpatient care.[1] Learn more at [Let's Get Healthy California](https://letsgethealthy.ca.gov/goals/redesigning-the-health-system/reducing-preventable-hospitalizations/) [1] Preventable Hospitalization in California: Statewide and County Trends in Access to and Quality of Outpatient Care, Measured with Prevention Quality Indicators (PQIs), 1999-2008. Department of Health Care Access and Information (2010)
Per-supplier reports of selected production and deliveries fields, comprising of a combination of data from the DRINC Portal (June 2014-December 2022) and the SAFER Clearinghouse (January 2023 onwards). This table contains values converted to gallons from the original reported units. The per-water-system data for January 2023 can be viewed in the [Per-Water-System Supply and Demand](https://data.ca.gov/dataset/urws-conservation-supply-demand/resource/264c7888-f7eb-42b4-9a19-ceb162f3ae8a) table in the original units. Column header names have been reformatted to eliminate spaces and special characters.
2022 (v2023) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
COVID-19 Vaccines Administered By Demographics (Booster Metric archived)
Data Dictionary - Modeling Forecasts for COVID-19 and Influenza
COVID-19-associated Hospitalization Rates from NHSN
The dataset contains COVID-19-associated hospital admissions are from Centers for Disease Control and Prevention’s (CDC) National Healthcare Safety Network (NHSN) Hospitalization dataset. The requirement to report COVID-19 and influenza-associated hospitalizations was effective November 1, 2024. CDPH pulls NHSN data from the CDC on the Wednesday prior to the publication of the report. Results may differ depending on which day data are pulled. Admission rates are calculated using population estimates from the P-3: Complete State and County Projections Dataset provided by the State of California Department of Finance (https://dof.ca.gov/forecasting/demographics/projections/). Reported weekly admission rates for the entire season use the population estimates for the year the season started. For more information on NHSN data including the protocol and data collection information, see the CDC NHSN webpage (https://www.cdc.gov/nhsn/index.html). Weekly hospitalization data are defined as Sunday through Saturday.
Map of Latest Land Subsidence as Measured by InSAR
This data cover the period of Water Year 2024 which began on October 1, 2023 and ended on September 30, 2024.
InjuredWitnessPassengers raw data file of 2020; Updated: 1/15/2026 7:25:45 PM
2017 (v2019) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Tissue data for year 2023 from the California Environmental Data Exchange Network (CEDEN).
InjuredWitnessPassengers raw data file of 2019; Updated: 1/15/2026 7:30:47 PM
COVID-19 Vaccines Administered By Demographics By County (2023-2024 updated vaccine archived)
Water Chemistry data for year 2012 from the California Environmental Data Exchange Network (CEDEN).
SWAMP Tissue Summary Results - Data Dictionary
Pajaro - tTEM Data Report (Draft) Appendices
Data Report (Draft) Appendices for the tTEM data collected for the Pajaro Local Investigation. File updated on 12/4/2024.
Crashes raw data file of 2024; Updated: 1/15/2026 7:08:35 PM
COVID-19 Vaccines Administered By Demographics (2024-2025 updated vaccine archived)
Crashes raw data file of 2019; Updated: 1/15/2026 7:30:01 PM
COVID-19 Vaccines Administered By HPI Quartile (Booster Metric archived)
Tissue data for year 2018 from the California Environmental Data Exchange Network (CEDEN).
Tissue data for year 2011 from the California Environmental Data Exchange Network (CEDEN).
InjuredWitnessPassengers raw data file of 2026; Updated: 1/15/2026 7:00:16 PM
Snow course metadata provides information related to active snow courses including their location, elevation, start date, operation and maintenance agencies, and the measurement schedule.
Annual subsidence rate layer to be used in CalGW Live Storymap subsidence dashboard. This feature layer contains data for multiple years, and spatial data gaps have been filled for the purpose of statewide summaries. The layer has to be filtered by water year (WY). The TRE ALTAMIRA InSAR subsidence dataset is available at https://data.cnra.ca.gov/dataset/tre-altamira-insar-subsidence. This service is under development as part of of ongoing enhancements to CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.
This application allows for searching by Name or NPI, or using filters to create a subset of the data. Selected records can be viewed as a snapshot or the data table can be downloaded in part or full.
Survey Area 5 - Data Report Appendices - Kings, Madera, and Chowchilla
Appendices to the Data Report for Survey Area 5 (Kings, Madera, and Chowchilla groundwater subbasins). File updated on 4/25/2023.
Data dictionary for the CEDEN chemistry data.
Fecal Indicator Bacteria Monitoring Results - Excluded Records
This dataset contains monitoring records that were excluded during the data processing workflow for the [Safe to Swim map](https://mywaterquality.ca.gov/safe-to-swim/content/interactive_map/). These records typically include duplicate or replicate results, records with missing or invalid result values, or any data that cannot be used to calculate a geometric mean. The purpose of publishing this dataset is to promote transparency in how data is handled and to provide users with access to the full context of the data processing decisions. Each record includes a value in the "Comments" column that explains the reason for exclusion. If you believe a record was excluded in error and should be reconsidered for inclusion, please contact us for review.
Statewide COVID-19 Vaccines Administered By County (2023-2024 updated vaccine archived)
Data Dictionary - Seismic compliance data by county for general acute care hospitals
Data for seismic compliance in general acute care hospitals is grouped by counties. All general acute care hospital buildings are assigned a structural performance category (SPC). SPC ratings range from 1 to 5 with SPC 1 assigned to buildings that may be at risk of collapse during a strong earthquake and SPC 5 assigned to buildings reasonably capable of providing services to the public following a strong earthquake. State law requires all SPC 1 buildings to be removed from providing general acute care services by 2020 and all SPC 2 buildings to be removed from providing general acute care services by 2030. Therefore, a hospital facility that may be comprised of a number of hospital buildings meets the 2020 requirements if there are no SPC 1 buildings on campus. A hospital facility meets the 2030 requirements if all the buildings on campus are either SPC 3, 4 or 5. Data is provided for both hospital facilities and hospital buildings. Data is updated approximately every two weeks.
January 2026 Monthly Update (Q1-Q4 2025 data) - Prescription Drug WAC Increases - 5 Year History (Excel)
2005-2015Q3 (v5.0.2) Technical Notes-Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
CEDEN Benthic Data (Parquet File Format)
This resource contains all benthic macroinvertebrate data available from the CEDEN database, in the [Apache Parquet file format]((https://parquet.apache.org/)). The data is partitioned by year. Parquet is a free and open source data storage format that allows for fast and efficient processing of large datasets. It is compatible with a variety of data analysis platforms, including the R and Python programming languages, through the [Apache Arrow platform](https://arrow.apache.org/). An example showing how to use this data with the R programming language is available [here](https://gist.github.com/daltare/209acf0789b4f1bdec272c323ba45315).
Dataset contains counts of individuals certified eligible for Medi-Cal, by Month of Eligibility, Zip Code, and Sex, from Calendar Year 2010 to 2019. Due to the amount of data presented, below the dataset has been split into three files. All datasets are derived from the most recent reportable months information.
AEM data package containing a provisional AEM data acquisition parameters, raw, inverted, and interpreted AEM data. Survey Area 6 covers the following groundwater subbasins: Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, Solano, Livermore, South American, North American, Yolo, Sutter, South Yuba, and North Yuba. File updated on 5/23/2023.
PDFs of Well Completion Reports by County
Redacted Well Completion Reports are organized in folders by County and Township/Range, and named by Township/Range/Section and log number
Habitat data for year 2001 from the California Environmental Data Exchange Network (CEDEN).
Survey Area 7 - Flown Survey Lines - PROVISIONAL
Provisional flown flight lines for Survey Area 7 (Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope, Bowman, Bend, Millville, South Battle Creek, Anderson, Enterprise, Eel River, Sierra Valley groundwater subbasins). Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85).
GSP Monitoring Sites (New - Under Development)
Water Chemistry data for year 2013 from the California Environmental Data Exchange Network (CEDEN).
Prospect Island - FloaTEM Test Technical Memo (Draft) Appendices
Appendices for Prospect Island - FloaTEM Test Technical Memo (Draft). File updated on 8/14/2025.
Parties raw data file of 2024; Updated: 1/15/2026 7:09:12 PM
COVID-19 Vaccines Shipped and Delivered - Data Dictionary
Madera & North Kings Local Investigation
The Madera & North Kings Local Investigation focuses on providing information to support floodplain habitat rehabilitation, surface water-groundwater interaction, groundwater recharge, and domestic well assistance activities. The Local Investigation is located within the Kings and Madera subbasins and concentrated on the eastern side of the San Joaquin Valley, between the Upper San Joaquin and Fresno Rivers. Maps and models developed as a part of this Local Investigation support state and local agencies in determining locations for deep recharge (to get water into the main producing zone of the aquifer), shallow recharge (to provide water for vulnerable shallow domestic wells), and multi-benefit floodplain rehabilitation. The Madera & North Kings Local Investigation is a collaboration between the Basin Characterization Program, the Madera and North Kings GSAs, DWR’s Flood-MAR Program, and the Ecological Flood Inundation Potential (EcoFIP) team. ## Maps and Models * [Local Investigation: Madera/North Kings - Texture model (Version 2024.3)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/ddd6d0d5-68e7-45c1-b9b1-d88de3cf1276 "Local Investigation: Madera/North Kings - Texture model (Version 2024.3)") * [Local Investigation: Madera/North Kings - Aquifer Recharge Potential Maps (Version 2024.3)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/e5c9e782-bb75-495b-bb22-b659976937ae "Local Investigation: Madera/North Kings - Aquifer Recharge Potential Maps (Version 2024.3)") + ARP Maps and Texture Model can be viewed online on the [SGMA Data Viewer](https://sgma.water.ca.gov/webgis/?appid=SGMADataViewer#basincharacter "SGMA Data Viewer") ## Datasets * [Digitized lithology and geophysical logs - Local Investigation: Madera/North Kings](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/1d08d5ff-427d-4d77-9d39-89caca3c34fe "Digitized lithology and geophysical logs - Local Investigation: Madera/North Kings") * [Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Areas 5 and 9](https://data.cnra.ca.gov/dataset/aem "Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Areas 5 and 9") * [AEM datasets - Statewide AEM Surveys, Survey Areas 5 and 9](https://data.cnra.ca.gov/dataset/aem "AEM datasets - Statewide AEM Surveys, Survey Areas 5 and 9")
Calendar Years 2020 to the Most Recent Reportable Month
Dataset contains counts of individuals certified eligible for Medi-Cal, by Month of Eligibility, Zip Code, and Sex, from Calendar Year 2020 to the most recent reportable month. Due to the amount of data presented, below the dataset has been split into three files. All datasets are derived from the most recent reportable months information.
January 2026 Monthly Update (Q1-Q4 2025 data) - Prescription Drug WAC Increases (Excel)
Water Chemistry data for year 2019 from the California Environmental Data Exchange Network (CEDEN).
COVID-19 Vaccines Administered By HPI Quartile - Data Dictionary
AEM data package containing AEM data acquisition parameters, raw, minimally processed, inverted, and interpreted AEM data. Survey Area 5 covers the following groundwater subbasins: Pleasant Valley, Westside, Kings, Madera, Chowchilla, Merced, Turlock, Modesto, Delta-Mendota. File updated 4/18/2023.
COVID-19 Vaccines Administered By Demographics By County
Well Perforation data is not available for all wells in this dataset. Well perforations are screened intervals (openings) allowing groundwater to enter well casing. Wells can have multiple screen intervals, up to 10 screened intervals can be recorded for each well in this dataset.
By Age Group and Sex, Certified Eligibles
This is the file for Certified Eligibles by Age Group and Sex
AEM data package containing AEM data acquisition parameters, raw, inverted, and interpreted AEM data. Survey Area 3 covers the following groundwater basins: Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, Sonoma Valley. File updated on 7/17/2023.
Parties raw data file of 2026; Updated: 1/15/2026 7:00:10 PM
Habitat data for year 2016 from the California Environmental Data Exchange Network (CEDEN).
2005-2014 (v5.0) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Kern County - Digitized lithology and geophysical logs
Digitized lithology and geophysical logging data for the Kern County portion of the San Joaquin Valley Regional Investigation. File updated 1/13/2026.
2016 (v2022) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Water Chemistry data for year 2006 from the California Environmental Data Exchange Network (CEDEN).
This two-page fact sheet provides a high level overview of the activities completed and data generated during the AEM survey.
2023 (v2024) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Q1-Q4 2024 Prescription Drug WAC Increases
COVID-19 Vaccines Administered By VEM Quartile (Age 5+ archived)
Facility Profile attribute data and information (license, financial, and building safety data)
Percentage of RSV Detections at Clinical...
Habitat data for year 2006 from the California Environmental Data Exchange Network (CEDEN).
California’s Groundwater Live provides the most relevant and recent groundwater information at the click of a button. The webpage also includes a series of interactive dashboards which allow users to interact and customize what groundwater data they would like to view. Users can filter the data by address, county, groundwater basin, well depth and even time period to see unique data summaries. California’s Groundwater Live has been developed for a variety of users including groundwater managers, governmental agencies, well owners, non-governmental organizations, water policy makers and members of the public interested in groundwater.
The interface helps query daily sensor data or monthly snow course data among many other types of data CDEC hosts. ** For Snow Course Data: ** * Input Station ID (refer to Station Metadata for Station ID). For multiple stations, use IDs separated by comma. * Choose Sensor #3 for monthly snow water content data and Sensor #18 for monthly snow depth data * Input start and end dates for the period of data you are interested in. For all available data in record, enter start date = 1900-01-01, end date = today's date ** For Daily Snow Sensor Data: ** * Input Station ID (refer to Station Metadata for Station ID). For multiple stations, use IDs separated by comma. * Choose Sensor #3 for Raw daily snow water equivalent data and Sensor #82 for revised daily snow depth data, for daily snow depth data input Sensor = 18. * Input start and end dates for the period of data you are interested in. For all available data in record, enter start date = 1900-01-01, end date = today's date ** For Regional Monthly Data (??) ** * Input Station ID (refer to Station Metadata for Station ID). For multiple stations, use IDs separated by comma. * Choose Sensor #3 for Raw daily snow water equivalent data and Sensor #82 for revised daily snow depth data, for daily snow depth data input Sensor = 18. * Input start and end dates for the period of data you are interested in. For all available data in record, enter start date = 1900-01-01, end date = today's date For more guidance on data query in different forms and formats, please refer to the [link](https://cdec.water.ca.gov/reportapp/javareports?name=WebDMAppsAPIDocs.pdf)
Table of DHCS (Medi-Cal) Provider Specialty Codes and Descriptions used by the Medi-Cal Fiscal Intermediary.
The Suspended and Ineligible List is a list reflecting all providers of service who the Department has suspended. Pursuant to Welfare and Institution Code sections 14123, subdivision (a) (convictions), 14123, subdivision (b) (federal exclusions) and 14043.6 (license loss) these suspensions are automatic and non-discretionary. Please see legal description and legal introduction notice attached.
By Medicare Dual Status and Age Group, Certified Eligibles
this is the file for Certified Eligibles by Medicare Dual Status and Age Group
Percentage of Other Respiratory Pathogen...
Ground Surface Displacement - Point Data
2018 (v2020) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Madera & North Kings - Texture Model Version 2024.3
Texture model Version 2024.3 for the Madera & North Kings Local Investigation. Model was developed using [Data2Texture](Data2Texture, Data2HSM, and Texture2Par V.2 "Data2Texture") and includes the integration of texture derived from available AEM data and digitized lithology logs. File updated on 12/19/2024 *** Superseded Data Releases:: * Texture Model Version 2024.2 Email Basin.Characterization@water.ca.gov to request a superseded dataset.
2024 (v2025) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
By Medicare Dual Status, Certified Eligibles
This is the file for Certified Eligibles by Medicare Dual Status
Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County (CSV)
Survey Area 9 - AEM Data (limited) - PROVISIONAL
AEM data package containing provisional AEM data acquisition parameters, raw, inverted AEM data (electrical resistivity values versus depth), and AEM data interpretations. Survey Area 9 covers the Basin Characterization Pilot Study 1 area within portions of Madera and Kings groundwater subbasins. File updated on 2/29/2024.
Madera & North Kings - Digitized lithology and geophysical logs
Digitized lithology and geophysical logging data for the Madera & North Kings Local Investigation. File updated 1/13/2026.
Data Dictionary - Seismic Deadline Extensions Granted for California Hospitals
This dataset lists the General Acute Care (GAC) Hospitals that have been granted extensions for seismic compliance; facilities that currently have extension requests under review are not included in this table. Extensions are sorted by County, by hospital building. To link the HCAI IDs with those from other Departments, like CDPH, please reference the "Licensed Facility Cross-Walk" Open Data table at https://data.chhs.ca.gov/dataset/licensed-facility-crosswalk.
Water Board Wastewater Violations, 2001-2016
Violations recorded in the California Integrated Water Quality System database regarding violations of permits, orders, and the Water Code.
Percentage of RSV Admissions at Kaiser...
Raw AEM data and auxiliary data for Survey Area 10.
Sacramento Valley - Aquifer Recharge Potential Maps (Version 2025.1)
Aquifer Recharge Potential (ARP) map V.2025.3 for the Sacramento Valley Regional Investigation. ARP maps were developed using the [Sacramento Valley - Texture Model (Version 2025.1)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/087e6e7c-56cd-443f-a7e4-868428e94d1f "Sacramento Valley - Texture Model (Version 2025.1)") Additional information on the ARP mapping process can be found on the [Aquifer Recharge Potential Mapping Process Document](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/7d33d618-38bc-4511-834c-6e791695f8e2 "Aquifer Recharge Potential Mapping Process Document"). File updated on 8/14/2025.
2017 (v2021) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
2019 (v2023) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Tissue data for year 2022 from the California Environmental Data Exchange Network (CEDEN).
Data dictionaries and description of data flag/modified z-score methodology for the Urban Retail Water Supplier - Water Conservation, Supply, and Demand Dataset
Water Chemistry data for year 2022 from the California Environmental Data Exchange Network (CEDEN).
2021 (v2022) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
2019 (v2021) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Tissue data for year 2000 from the California Environmental Data Exchange Network (CEDEN).
Tissue data for year 2003 from the California Environmental Data Exchange Network (CEDEN).
Percentage of Deaths Attributed to Influenza...
Q1-Q4 2024 Prescription Drugs Introduced to Market
Crashes raw data file of 2017; Updated: 1/15/2026 7:40:05 PM
Tissue data for year 2013 from the California Environmental Data Exchange Network (CEDEN).
AEM data package containing AEM data acquisition parameters, raw, minimally processed, inverted, and interpreted AEM data. Survey Area 4 covers the following groundwater subbasins: Tulare Lake, Kaweah, Tule, Kern County, and White Wolf. File updated 3/9/2023.
Respiratory Virus Dashboard Metrics: Testing
Reported actions to respond to drought/water shortage and/or encourage conservation, as reported in the DRINC Portal monthly report. In this format, each action is its own column, with a "Y" to denote if the action was implemented by the supplier for the corresponding reporting month.
Flown flight lines for Survey Area 1. Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85).
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2010 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2010. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Prescription Drugs WAC Increases - 5 Year History - Data Dictionary
Data Dictionary - Seismic Ratings and Collapse Probabilities of California Hospitals
This dataset lists the Structural Performance Category or “SPC rating” and Nonstructural Performance Category or “NPC rating” of all General Acute Care Hospitals in California, including a building’s probability of collapse in a significant earthquake is assessed using Multi-Hazard Loss Estimation Technology (HAZUS). To link the HCAI IDs with those from other Departments, like CDPH, please reference the "Licensed Facility Cross-Walk" Open Data table at https://data.chhs.ca.gov/dataset/licensed-facility-crosswalk.
2023 (v2024) ReadMe-Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Seasonal Groundwater Level Changes 1, 3, 5 and 10-Year (GIS Feature Service)
Seasonal groundwater level reports provide information from selected water level measurements and are intended to portray the change in seasonal groundwater levels over specific time intervals. Each point shows the calculated difference between the measured groundwater levels from the selected time periods. The change in groundwater level is plotted on the map only if a measurement exists in both time periods at a well. These change values are derived from the DWR Periodic Groundwater Levels dataset that contains seasonal and long-term groundwater level measurements collected by the Department of Water Resources and cooperating agencies in groundwater basins statewide. It also includes data collected through the Sustainable Groundwater Management Act (SGMA) Portal’s Monitoring Network Module (MNM), and the CASGEM (California Statewide Groundwater Elevation Monitoring) Program. Most measurements are taken manually twice per year to capture the peak high and low values in groundwater elevations. However, the dataset also includes measurements recorded more frequently, monthly, weekly, or daily. The complete DWR Periodic Groundwater Levels dataset is available at https://data.cnra.ca.gov/dataset/periodic-groundwater-level-measurements. This service is under development in support of ongoing enhancements to CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.
Survey Area 7 - Esri Scene Layer Package - Resistivity
Survey Area 1 - Esri Scene Layer Package - Resistivity
This file contains the electrical resistivity data where each point represents the vertical center and the average resistivity value for a depth interval. Resistivity data were obtained from 04_XYZ_Ascii\02_Sharp MLM\*_inv.xyz files and displayed as a Point Cloud. The Esri Scene Layer Package (SLPK) files can be opened in the ArcPro within a Local Scene.
2018 (v2023) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
CEDEN Tissue Data (Parquet File Format - All Years)
This resource contains all tissue data available from the CEDEN database, in the [Apache Parquet file format]((https://parquet.apache.org/)). The data is partitioned by year. Parquet is a free and open source data storage format that allows for fast and efficient processing of large datasets. It is compatible with a variety of data analysis platforms, including the R and Python programming languages, through the [Apache Arrow platform](https://arrow.apache.org/). An example showing how to use this data with the R programming language is available [here](https://gist.github.com/daltare/209acf0789b4f1bdec272c323ba45315).
Parties raw data file of 2025; Updated: 1/15/2026 7:03:37 PM
2018 (v2019) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2005 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2005. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Measurements - Groundwater level time series measurements
Survey Area 11 - Data Report Appendices - Salton Sea Area
Appendices to Data Report for Survey Area 11 (Salton Sea Area: Coachella-Indio, Coachella-Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited),Chocolate Valley (limited), Borrego Springs, and San Jacinto groundwater subbasins). File updated on 2/13/2025.
Water Chemistry data for year 2009 from the California Environmental Data Exchange Network (CEDEN).
Confined Animal Facilities Regulated by the Water Boards
Q1-Q4 2022 Prescription Drug WAC Increases
Habitat data prior to year 2000 from the California Environmental Data Exchange Network (CEDEN).
Dry Domestic Well Susceptibility (Python Notebook)
Dry Domestic Well Susceptibility (GIS Feature Service)
2016 (v2020) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Seismic Ratings and Collapse Probabilities of California Hospitals (CSV)
This dataset lists the Structural Performance Category or “SPC rating” and Nonstructural Performance Category or “NPC rating” of all General Acute Care Hospitals in California, including a building’s probability of collapse in a significant earthquake is assessed using Multi-Hazard Loss Estimation Technology (HAZUS).
Prospect Island - FloaTEM Test Data (Preliminary)
Preliminary FloaTEM test data collected as a part of the Prospect Island Local Investigation. Dataset includes electrical resistivity data. File updated on 8/14/2025.
Survey Area 2 - Tulelake, Big Valley, & Fall River Valley Fact Sheet
Enrolled Medi-Cal Fee-for-Service (FFS) Providers
The dataset provides enrollment and geographic data for Fee-for-Service (FFS) providers enrolled in the Medi-Cal. The data is based on a point in time, and it is to be updated monthly. The enrollment data is as of January 12, 2026. This dataset does not include Dental Fee-for-Service providers.
Survey Area 5 - Data Report Appendices - Westlands, Pleasant Valley, and Delta-Mendota
Appendices to the Data Report for Survey Area 5 (Westlands, Pleasant Valley, and Delta-Mendota groundwater subbasins). File updated on 4/25/2023.
Construction Discharge - Facility Information
COVID-19 Sewershed Restricted Case Data - Data Dictionary
Survey Area 3 - Esri Scene Layer Package - Resistivity
Survey Area 7 - Data Report Appendices (Redding Area)
Appendices to the Data Report for Survey Area 7 (Redding Area - South Battle Creek, Bowman, Anderson, Enterprise, and Millville groundwater subbasins). File updated on 6/30/2023.
Flood Emergency Response Information Exchange (FERIX)
Flood Emergency Response Information Exchange (FERIX) is developed by the California Department of Water Resources to improve flood emergency preparedness, response and recovery in California. It provides participating agencies an online system to access and exchange current flood information in real-time through Web GIS interface. It integrates geo-referenced databases, a real-time data collection and exchange system, and a decision support system supporting other DWR programs, various hydrologic and hydraulic computer models and tools, and applicable flood-related documents.
Data Dictionary Housing Element Compliance Report
Map showing the AEM survey flight lines where data have been collected to date.
Data2Texture is an advanced spatial data interpolation and simulation tool for estimating the distribution of sediment textures from AEM. borehole lithology, and geophysical logging data.
COVID-19 Vaccines Shipped, Delivered, On Hand, by County & Zip
Habitat data for year 2014 from the California Environmental Data Exchange Network (CEDEN).
Survey Area 4 - Esri Scene Layer Package - Resistivity
CEDEN Water Chemistry Data (Parquet File Format - All Years)
This resource contains all water chemistry data available from the CEDEN database, in the [Apache Parquet file format]((https://parquet.apache.org/)). The data is partitioned by year. Parquet is a free and open source data storage format that allows for fast and efficient processing of large datasets. It is compatible with a variety of data analysis platforms, including the R and Python programming languages, through the [Apache Arrow platform](https://arrow.apache.org/). An example showing how to use this data with the R programming language is available [here](https://gist.github.com/daltare/209acf0789b4f1bdec272c323ba45315).
Q1-Q4 2021 Prescription Drug WAC Increases - 5 Year History
A document created by the Department of Drinking Water that explains the procedure for updating population values outside of the Electronic Annual Report (EAR).
A list of current water quality sampling sites including location, synonyms, IDs, and coordinates.
Sacramento Valley - Texture Model Version 2025.1
Texture Model Version 2025.1 for the Sacramento Valley Investigation. Texture Model Version 2025.1 was developed using Data2Texture and includes the integration of digitized lithology logs from SVSim. Data2Texture model files available upon request. File updated on 6/11/2025
Tissue data for year 2014 from the California Environmental Data Exchange Network (CEDEN).
Texture Interpretation (Coarse Fraction) Depth Slices and Shallow Subsurface Average Maps
This shapefile represents texture data interpretations (as coarse fraction) provided as depth slices and the shallow subsurface averages derived from the Statewide Airborne Electromagnetic (AEM) Survey data available at https://data.cnra.ca.gov/dataset/aem. The Coarse Fraction data for a depth slice are displayed using a local polynomial interpolation on a 1 kilometer line buffered around the flown flight line. The depth slice intervals were defined by the Coarse Fraction data inversion geometry. The 1-15 meter depth interval was defined as the depth weighted average Coarse Fraction value over the defined interval. Coarse Fraction data for Survey Area 1 were averaged to match Survey Areas 2 through 7 data resolution. The accuracy of the depth slice values for Survey Area 1 are +/- 1 meter of the depth slice displayed.
2022 (v2023) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Station - Groundwater well location information
2016 (v2023) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
COVID-19 Vaccines Administered By HPI Quartile (2023-2024 updated vaccine archived)
Technical Memo - AEM Test Flights to Evaluate the Bias Signal Caused by Vineyard Trellises Containing Metal
Title: AEM Test Flights to Evaluate the Bias Signal Caused by Vineyard Trellises Containing Metal. Authors: Ian Gottschalk, Max Halkaer, Timothy Parker, Paul Thorn Contact Authors: Ian Gottschalk, Ramboll U.S., igottschalk@rambol.com CNRA Posting Date: 2/20/2024
Survey Area 5 - AEM Data (2) - PROVISIONAL
AEM data package containing AEM Aarhus Workbench Project processed data files. Survey Area 5 covers the following groundwater subbasins: Pleasant Valley, Westside, Kings, Madera, Chowchilla, Merced, Turlock, Modesto, Delta-Mendota. File updated 11/13/2023.
Parties raw data file of 2021; Updated: 1/15/2026 7:22:16 PM
2024 (v2025) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
The dataset contains hospitalization counts and rates, statewide and by county, for 10 ambulatory care sensitive conditions plus 4 composite measures. Hospitalizations due to these medical conditions are potentially preventable through access to high-quality outpatient care. The conditions include: diabetes short-term complications; diabetes long-term complications; chronic obstructive pulmonary disease (COPD) or asthma in older adults (age 40 and over); hypertension; heart failure; community-acquired pneumonia; urinary tract infection; uncontrolled diabetes; asthma in younger adults (age 18-39); and lower-extremity amputation among patients with diabetes. The composite measures include overall acute conditions, chronic conditions, and diabetes (new, 2016). The data provides a good starting point for assessing quality of health services in the community. The data does not measure hospital quality. Note: In 2015, HCAI (formerly OSHPD) only released the first three quarters of data due to a change in the reporting of diagnoses from ICD-9-CM to ICD-10-CM codes, effective October 1, 2015. Due to the significant differences resulting from the code change, the ICD-9-CM data is distinguished from the ICD-10-CM data in the data file beginning in 2016.
Tissue data for year 2006 from the California Environmental Data Exchange Network (CEDEN).
Tissue data for year 2007 from the California Environmental Data Exchange Network (CEDEN).
COVID-19 Vaccines Administered By VEM Quartile (Age 16+ archived)
Model input files, GIS data and model documentation
Habitat data for year 2018 from the California Environmental Data Exchange Network (CEDEN).
Variant Proportion Nowcasts for COVID-19
2016 (v2021) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
This file contains additional details about the data, sources, a disclaimer and distribution information.
The ETo maps are presented as compressed ASCII files (ETo.asc.gz). The ETo maps are contained in folders defined by Year, Month, and Day. ETo data is expressed in millimeters.The ASCIII files can be converted to conventional raster formats (TIF, img) using commercial and open source software. The spatial reference of the maps are defined as EPSG Projection 3310 - NAD83 / California Albers (http://spatialreference.org/ref/epsg/3310/). .
Survey Area 1 - Salinas Valley Data Report Appendices
Appendices for the Salinas Valley Data Report. File updated on 5/31/2022.
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2008 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2008. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Survey Area 3 - Data Report - Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, and Sonoma Valley
Data Report for Survey Area 3 (Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, and Sonoma Valley). File updated on 2/10/2023.
Total Construction Cost of Healthcare Projects (CSV)
Survey Area 2 - Data Report Appendices - Western Basins (Scott River Valley, Shasta Valley, Butte Valley)
Appendices to the Data Report for the western groundwater basins within Survey Area 2 - Scott River Valley, Shasta Valley, and Butte Valley. File updated on 10/19/2022.
Urban Retail Water System Annual Loss Audit Data
Table of DHCS (Medi-Cal) Provider Type Codes and Descriptions used by the Medi-Cal Fiscal Intermediary.
2016 (v2023) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Western San Joaquin Valley - Digitized lithology and geophysical logs
Digitized lithology and geophysical logging data for the Western San Joaquin Valley Local Investigation. File updated 1/13/2026.
Survey Area 2 - Esri Scene Layer Package - Resistivity
Data Dictionary - Prescription Drugs Introduced to Market
Appendices to Data Report for Survey Area 8. File updated on 10/24/2023.
Safe to Swim 2010-2020 (no longer updated)
This data resource will no longer be updated. Please use "Safe to Swim Results/Geomeans 2010-2020" resource instead.
Provisional flown flight lines for Survey Area 4 (Tulare Lake, Kaweah, Tule, Kern County, and White Wolf groundwater subbasins). Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85).
Short description of all data fields in the raw data files.
This is a detailed description of all the data elements included in all provided HABS datasets.
Certified Eligible Individuals, by Aid Code, 2010 to the Most Recent Reportable Month
DHCS Medi-Cal Aid Category Grouping Schema
This reference table, maintained by DHCS, displays aid code categories by aid code. Aid codes identify the criteria by which each person qualifies for Medi-Cal and the types of services he or she receives, and make clear whether the services are funded by the State or Federal government or both. An aid code is a combination of two numbers or a letter and a number and is attached to a Medi-Cal beneficiary’s identification numbers. Aid code category refers to a unique grouping of distinct aid codes into broad categories such as CHIP, Seniors and Persons with Disabilities, and Long-Term Care. For a description of each aid code, see the [Medi-Cal Aid Code Master Chart](https://files.medi-cal.ca.gov/pubsdoco/publications/masters-mtp/part1/aidcodes.pdf "Medi-Cal Aid Code Master Chart").
Habitat data for year 2013 from the California Environmental Data Exchange Network (CEDEN).
A compiled list of organic chemical (pesticides, herbicides, semi-volatile organic compounds, and volatile organic compounds) analysis results for the SWP Routine Water Quality Monitoring Project. These samples are typically collected three times a year (March, June, and September) at several locations in the SWP. Samples before 2020 were analyzed by Bryte Lab and are available on the Water Data Library. Samples in 2020 and after were sent to non-DWR affiliated labs and are available in this dataset.
Survey Area 4 - AEM Data (2) - PROVISIONAL
AEM data package containing AEM Aarhus Workbench Project files. Survey Area 4 covers the following groundwater subbasins: Tulare Lake, Kaweah, Tule, Kern County, and White Wolf. File updated 11/13/2023.
5th Cycle RHNA Progress Report Data Dictionary
Text file containing a record of schema changes made to any of the resources.
Tissue data for year 2017 from the California Environmental Data Exchange Network (CEDEN).
This dataset is a catalog of all the datasets available on the CHHS Open Data Portal. Each item in the catalog represents a dataset and includes the associated metadata and additional information.
Water Chemistry data for year 2020 from the California Environmental Data Exchange Network (CEDEN).
Habitat data for year 2003 from the California Environmental Data Exchange Network (CEDEN).
CEDEN Tissue Data (Zipped CSV - All Years)
Zipped CSV file containing all tissue data from the California Environmental Data Exchange Network (CEDEN).
Q1-Q4 2024 Prescription Drugs WAC Increases - 5 Year History
2016-2020 (v2021) ReadMe-Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Survey Area 1 - Cuyama Valley Data Report Appendices
Appendices for the Cuyama Valley Data Report. File updated on 5/31/2022.
Technical Memo - SkyTEM Instrument Comparison for Airborne EM
Title: SkyTEM Instrument Comparison for Airborne EM Authors: Ian Gottschalk, Frederik Christensen, Mikkel Toftdahl, Jeppe Frost Scherning, and Paul Thorn Contact Author: Ian Gottschalk, Water Resources, Ramboll U.S. igottschalk@ramboll.com CNRA Posting Date: 2/28/2024
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2007 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2007. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
DWR's dataset and Data Report use disclaimer.
20-Year Groundwater Level Trends (GIS Feature Service)
Groundwater levels at selected wells were analyzed using the Mann-Kendall non-parametric test to determine whether a statistically significant trend (declining trend, no trend, or increasing trends in groundwater levels) was present during the specified time period. The data used came only from wells that have at least 10 years of data within the last 21 years. If a statistically significant trend was observed, the Theil-Sen method was used to calculate the estimated slope of the trend line to quantify the decline or increase. These trends are derived from the DWR Periodic Groundwater Levels dataset that contains seasonal and long-term groundwater level measurements collected by the Department of Water Resources and cooperating agencies in groundwater basins statewide. It also includes data collected through the Sustainable Groundwater Management Act (SGMA) Portal’s Monitoring Network Module (MNM), and the CASGEM (California Statewide Groundwater Elevation Monitoring) Program. Most measurements are taken manually twice per year to capture the peak high and low values in groundwater elevations. However, the dataset also includes measurements recorded more frequently, monthly, weekly, or daily. The complete DWR Periodic Groundwater Levels dataset is available at https://data.cnra.ca.gov/dataset/periodic-groundwater-level-measurements This service is under development as part of ongoing enhancements to CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.
Water Chemistry data for year 2005 from the California Environmental Data Exchange Network (CEDEN).
Data Dictionary Preventable Hospitalizations (Age <18)
Survey Area 1 - Supporting Data - PROVISIONAL
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 7/22/2022 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
Statewide COVID-19 Vaccines Administered by Zip Code (Age 5+ archived)
This dataset is a subset of the CTRx data presenting diabetes related treatments. This table is a list of wholesale acquisition cost (WAC) increases that exceed the WAC increase threshold of 16% for the period including the current quarter and the previous two calendar years for prescription drug products with a WAC greater than $40 for a course of therapy. HCAI also reports on preventable hospitalizations for diabetes: https://hcai.ca.gov/visualizations/preventable-hospitalizations-for-diabetes/. The diabetes drugs included in this analysis are based on the Nevada Department of Health and Human Services’ Essential Diabetes and Asthma Drug List: https://dhhs.nv.gov/HCPWD/Drug_Transparency
Data Report for Survey Area 10 (San Antonio Creek Valley, Arroyo Grande, Santa Maria, San Luis Obispo, Los Osos Area, Warden Creek, Chorro Valley (limited), and Morro Valley (limited) groundwater subbasins). File updated on 12/11/2024.
Survey Area 11 - Data Report - Salton Sea Area
Data Report for Survey Area 11 (Salton Sea Area: Coachella-Indio, Coachella-Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited),Chocolate Valley (limited), Borrego Springs, and San Jacinto groundwater subbasins). File updated on 2/5/2025
Habitat data for year 2022 from the California Environmental Data Exchange Network (CEDEN).
Women, Infants and Children (WIC) Authorized Vendors (CSV)
The Women, Infants and Children (WIC) Program is a federally-funded health and nutrition program that provides assistance to pregnant women, new mothers, infants and children under age five. WIC helps California families by providing food instruments and vouchers that can be used to purchase healthy supplemental foods from over 4000 WIC-authorized vendor stores throughout the State. WIC also provides nutritional education, breastfeeding support and help finding healthcare and other community services. Participants must meet income guidelines and other criteria. Currently, 84 WIC agencies provide services monthly to over 1.45 million participants at over 650 sites in local communities throughout the State.
Statewide COVID-19 Vaccines Administered By County (2024-2025 updated vaccine archived)
Tissue data for year 2005 from the California Environmental Data Exchange Network (CEDEN).
2021 (v2023) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Dry Domestic Well Susceptibility and Reporting Fact Sheet
This resource includes a brief fact sheet describing DWR's [Dry Domestic Well Susceptibility Analysis](https://data.cnra.ca.gov/dataset/calgw-live/resource/e0bf3d2b-ceca-41ca-876f-d3e378503583) and [Dry Well Reporting System](https://mydrywell.water.ca.gov). DWR, in coordination with the State Water Resources Control Board, has developed an interactive dashboard, called the Dry Domestic Well Susceptibility within Groundwater Basins Dashboard (Dry Well Susceptibility Dashboard), to identify areas within groundwater basins throughout the State that may be prone to water supply shortages due to domestic drinking water wells going dry. The dashboard identifies the density of "susceptible” domestic wells per square mile based on recent groundwater level measurements and modeled future depth to water. If the modeled future depth to water falls below the dry well depth of a domestic well, the well is labelled susceptible. The Dry Well Susceptibility Dashboard is housed on the California’s Groundwater Live web-based platform which contains the latest information and data on groundwater conditions across the State. The State, local agencies, and well owners can use this dashboard to anticipate where wells may be susceptible to inform drought preparedness decision-making and resource allocation.
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2004 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2004. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
Survey Area 7 - Data Report Appendices - Sierra Valley
Appendices to the Data Report for Survey Area 7 (Sierra Valley groundwater subbasin). File updated on 8/7/2023.
Survey Area 1 - Salinas Valley Data Report
Data Report for the Salinas Valley portion of Survey Area 1. File updated on 5/31/2022.
## Datasets and Reports All AEM data and reports are available on the CNRA Open Data Portal page: https://data.cnra.ca.gov/dataset/aem ## AEM Flight Line Map A map displaying the location of AEM data collection can be found here: https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85 ## AEM Data Viewers DWR's AEM 3D and Profile Viewers can be accessed here: https://data.cnra.ca.gov/dataset/aem/resource/29c4478d-fc34-44ab-a373-7d484afa38e8
Draft - Lower American River E. coli Monitoring Results
The URL provides access to adjusted snow water equivalent data for the 1981–1990 calendar years from active snow sensors in California. Data availability varies by station. Alternatively, the adjusted snow water equivalent data can be directly accessed and downloaded through the [CDEC Sensor Group JSON and CSV Web Services](https://cdec.water.ca.gov/dynamicapp/groupform). To retrieve the data, specify: Group ID: SW1 Desired Start and End Dates: in the request parameters
Includes information gathered by technical staff during the event response process. This may include investigation of a report and communication to responding organizations.
Survey Area 7 - Data Report - Eel River Valley
Data Report for Survey Area 7 (Eel River Valley Groundwater Basin). File updated on 9/20/2023
This is the main online database for DWR water quality data. Results for standard water quality analytes and for organic chemicals prior to 2020 can be found by searching on Water Data Library. These records can be queried by station name or number. The Division of Operations and Maintenance uses an alphanumeric code to identify water quality sampling sites on the State Water Project. Each code has a two to three letter prefix, which identifies the area or region of the SWP where the site is located. The list of these prefixes is available in the document ["EA_02_01 -- Identification Numbering for Water Quality Monitoring Sites"](https://data.cnra.ca.gov/dataset/307f4156-8f97-4f8f-be17-61a0dfd0d8db/resource/edc98a80-3843-4854-909a-3965e19a4c77/download/ea_02_01-identification-numbering-for-water-quality-monitoring-sites.pdf). A prefix from this list can be entered into the "Station Number" field of the WDL Station & County search window to find all sampling sites in that area.
Sustainability Management Criteria (SMC) (New - Under Development)
Public Supply Wells SWRCB-Supported (GIS Feature Service)
CalGW Live information for public supply wells is based on data from the State Water Resource Control’s Division of Drinking Water. This layer was last updated in November 2024.
Survey Area 5 - Data Report - Westlands, Pleasant Valley, and Delta-Mendota
Data Report for Survey Area 5 (Westlands, Pleasant Valley, and Delta-Mendota groundwater subbasins). File updated on 4/24/2023.
Age Distribution of COVID-19, Flu and...
AEM data package containing provisional inverted AEM data (electrical resistivity values versus depth) and AEM data interpretations. Survey Area 11 covers the following groundwater subbasins: Indian Wells Valley, Rose Valley, Owens Valley, Fish Slough, Indio, Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited),Chocolate Valley (limited), Borrego Springs, and San Jacinto File updated on 8/21/2024.
2019 (v2022) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
2018 (v2023) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
This resource contains data summarizing performance measures that are used to inform the Waterboard's annual Performance Report. The inspection data summarized in this resource is tracked in the Waterboard's CIWQS (California Integrated Water Quality System) database.
Current Groundwater Level Statistics (GIS Feature Service)
The DWR Groundwater Level Percentile Statistics are based on the USGS Groundwater Watch concept of comparing the most recent groundwater level measurement to historical measurements for the same month. For a well to be ranked, the most recent measurement must have occurred within the last 18 months, and measurements from at least 10 years must exist for that month. These statistics are derived from the DWR Periodic Groundwater Levels dataset that contains seasonal and long-term groundwater level measurements collected by the Department of Water Resources and cooperating agencies in groundwater basins statewide. It also includes data collected through the Sustainable Groundwater Management Act (SGMA) Portal’s Monitoring Network Module (MNM), and the CASGEM (California Statewide Groundwater Elevation Monitoring) Program. Most measurements are taken manually twice per year to capture the peak high and low values in groundwater elevations. However, the dataset also includes measurements recorded more frequently, monthly, weekly, or daily. The complete DWR Periodic Groundwater Levels dataset is available at https://data.cnra.ca.gov/dataset/periodic-groundwater-level-measurements. This service is under development as part of of ongoing enhancements to CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.
Survey Area 2 - Supporting Data - PROVISIONAL
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 10/18/2022 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
Raw AEM data and auxiliary data for Survey Area 7.
2017 (v2023) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Rates of Preventable Hospitalizations for Selected Medical Conditions by County (CSV)
COVID-19 Vaccines Administered By Demographics
2016-2022 (v2023) ReadMe-Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Survey Area 2- Scott River, Shasta, & Butte Fact Sheet
Data Report (draft) for the tTEM data collected for the Pajaro Local Investigation. The Draft Data Report contains information about data collection and the process to invert for the data for electrical resistivity values vs depth. Data Report to be updated with interpretations of electrical resistivity to texture (as percent coarse-grained material). File updated on 12/4/2024.
Q1-Q4 2021 Prescription Drug WAC Increases
Map of Current Groundwater Conditions in California
This map shows the percentile statistics for groundwater monitoring wells in California comparing their most recent elevation level to historical levels at that well. The map shows percentile statistics for all wells measured in 2025 and 2026 to date. This map was last updated on January 14, 2026.
Survey Area 6 - Esri Scene Layer Package - Resistivity
Survey Area 11 - Data Report Appendices - Eastern Sierras
Appendices to Data Report for Survey Area 11 (Eastern Sierras - Indian Wells Valley, Rose Valley, Owens Valley, and Fish Slough groundwater subbasins). File updated on 9/20/2024.
2015-Q1-Q3 (v5.0.2) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
NWSS Data Dictionary includes: valid values, required fields, data elements/descriptions, recent changes, etc. For most recent version of the data dictionary visit: https://www.cdc.gov/nwss/reporting.html#data-dictionary
Supporting Data - All Survey Areas - Digitized Lithology and Geophysical Logs
Lithology and geophysical logging data have been digitized to support the Statewide AEM Survey Project. Well lithology and geophysical logs located in a study area were compiled with the objective of obtaining two high-quality logs in each of the Public Land Survey System (PLSS) one-mile square sections that the flight lines cross. High-quality lithology logs were defined as having a verified location accuracy of less than 50 meters (164 feet) and having an average lithology description interval of less than 30 meters (98 feet). High-quality well lithology logs were digitized and tabulated by transcribing the original lithology descriptions and categorized into the free-form, the Unified Soils Classification System (USCS), and texture descriptions. High-quality geophysical logs were defined as being less than 40 years old and having an image quality that could be digitized. Digitized geophysical logs are provided as .las files. All digitized lithology logs with Well Completion Report IDs will be imported back into the OSWCR database. ###Revised Statewide AEM Survey Supporting Data (1/14/2026) * [Survey Area 1: 180/400 Foot Aquifer (partial), East Side (partial), Upper Valley, Forebay Aquifer, Paso Robles, Atascadero (limited), Adelaida (limited), Cuyama Valley](https://data.cnra.ca.gov/dataset/aem/resource/1f5509ec-6d57-4da4-8e7a-660d4c94efcd "Survey Area 1: 180/400 Foot Aquifer (partial), East Side (partial), Upper Valley, Forebay Aquifer, Paso Robles, Atascadero (limited), Adelaida (limited), Cuyama Valley") * [Survey Area 2: Scott River Valley, Shasta Valley, Butte Valley, Tulelake, Fall River Valley (limited), Big Valley (Modoc/Lassen County)](https://data.cnra.ca.gov/dataset/aem/resource/1f2275fb-e001-45b9-9749-3d3a216ab7ef "Survey Area 2: Scott River Valley, Shasta Valley, Butte Valley, Tulelake, Fall River Valley (limited), Big Valley (Modoc/Lassen County)") * [Survey Area 3: Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, Sonoma Valley](https://data.cnra.ca.gov/dataset/aem/resource/8d405643-cb7f-4c3d-9333-736eeeb6ffd4 "Survey Area 3: Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, Sonoma Valley") * [Survey Area 4: White Wolf, Kern County, Tulare Lake, Tule, Kaweah](https://data.cnra.ca.gov/dataset/aem/resource/eb09227e-32c7-4e11-94f5-359c9b202734 "Survey Area 4: White Wolf, Kern County, Tulare Lake, Tule, Kaweah") * [Survey Area 5: Pleasant Valley, Westside, Kings, Madera, Chowchilla, Merced, Turlock, Modesto, Delta-Mendota](https://data.cnra.ca.gov/dataset/aem/resource/366d53c0-6387-42d3-a39f-68aed6291853 "Survey Area 5: Pleasant Valley, Westside, Kings, Madera, Chowchilla, Merced, Turlock, Modesto, Delta-Mendota") * [Survey Area 6: Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, Solano, Livermore, South American, North American, Yolo, Sutter, South Yuba, North Yuba](https://data.cnra.ca.gov/dataset/aem/resource/e40fa03b-f62d-443d-a290-672405c0a3a4 "Survey Area 6: Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, Solano, Livermore, South American, North American, Yolo, Sutter, South Yuba, North Yuba") * [Survey Area 7: Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope, Bowman, Bend, Millville, South Battle Creek, Anderson, Enterprise, Eel River, Sierra Valley](https://data.cnra.ca.gov/dataset/aem/resource/ac9ed1fe-1487-4d31-a88b-361a8d584706 "Survey Area 7: Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope, Bowman, Bend, Millville, South Battle Creek, Anderson, Enterprise, Eel River, Sierra Valley") * [Survey Area 8: Seaside, Monterey, 180/400 (partially surveyed Summer 2021), Eastside (partially surveyed Summer 2021), Langley, Pajaro, Santa Cruz Mid-County, Santa Margarita, San Benito, and Llagas (partial)](https://data.cnra.ca.gov/dataset/aem/resource/8c59ee43-1ad0-4860-9746-a4815330aed6 "Survey Area 8: Seaside, Monterey, 180/400 (partially surveyed Summer 2021), Eastside (partially surveyed Summer 2021), Langley, Pajaro, Santa Cruz Mid-County, Santa Margarita, San Benito, and Llagas (partial)") * [Survey Area 9: Basin Characterization Pilot Study 1 - Madera and Kings](https://data.cnra.ca.gov/dataset/aem/resource/1e4bd143-63ec-4c5c-80ed-5dcf07ad1234 "Survey Area 9: Basin Characterization Pilot Study 1 - Madera and Kings") * [Survey Area 10: San Antonio Creek Valley, Arroyo Grande, Santa Maria, San Luis Obispo, Los Osos Area, Warden Creek, Chorro Valley (limited), Morro Valley (limited)](https://data.cnra.ca.gov/dataset/aem/resource/cfd1b037-cc3d-45d3-a519-38f4a5c37a0d "Survey Area 10: San Antonio Creek Valley, Arroyo Grande, Santa Maria, San Luis Obispo, Los Osos Area, Warden Creek, Chorro Valley (limited), Morro Valley (limited)") * [Survey Area 11: Indian Wells Valley, Rose Valley, Owens Valley, Fish Slough, Indio, Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited), Chocolate Valley (limited), Borrego Springs, and San Jacinto](https://data.cnra.ca.gov/dataset/aem/resource/262026e3-7a58-4e7b-ab77-4cba5b0ad7cf "Survey Area 11: Indian Wells Valley, Rose Valley, Owens Valley, Fish Slough, Indio, Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited), Chocolate Valley (limited), Borrego Springs, and San Jacinto") ### [Statewide AEM Survey Supporting Data - Summary of Revisions (1/14/2026)](https://data.cnra.ca.gov/dataset/aem/resource/f511fbd7-1e7d-44e2-9b2a-00e32f4ad88a "Statewide AEM Survey Supporting Digitized Data - Summary of Revisions (1/14/2026") File summarize revisions to the original Statewide AEM Survey Project digitized supporting data.
Statewide COVID-19 Vaccines Administered By County (Booster Metric archived)
Water Board Wastewater Violations Data Dictionary
Survey Area 1 - Cuyama Valley Data Report
Data Report for the Cuyama Valley portion of Survey Area 1. File uploaded on 5/31/2022.
2017 (v2020) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Survey Area 6 - Data Report - Solano, South American, North American, Yolo, Sutter, South Yuba, and North Yuba
Data Report for Survey Area 6 (Solano, South American, North American, Yolo, Sutter, South Yuba, and North Yuba groundwater subbasins). File updated on 5/24/2023.
Parties raw data file of 2023; Updated: 1/15/2026 7:13:38 PM
Survey Area 2 - Data Report - Eastern Basins (Tulelake, Big Valley, Fall River Valley)
Data Report for the eastern groundwater basins within Survey Area 2 - Tulelake, Big Valley (Lassen/Modoc counties), and Fall River Valley. File updated on 10/19/2022.
InjuredWitnessPassengers raw data file of 2025; Updated: 1/15/2026 7:04:11 PM
Tissue data for year 2019 from the California Environmental Data Exchange Network (CEDEN).
Preliminary tTEM data collected in the Pajaro area. Dataset includes electrical resistivity data and interpretations for texture. File updated on 3/20/2025.
Q1-Q4 2020 Prescription Drugs WAC Increases
Survey Area 4 - Data Report - Kaweah, Tulare Lake, & Tule
Data Report for Survey Area 4 (Kaweah, Tulare Lake, and Tule groundwater subbasins). File updated on 3/3/2023
California Grants Portal Grant Awards 2024-2025 - Updated Daily
San Joaquin Valley - Four County Area Regional Investigation
The San Joaquin Valley - Four County Regional Investigation (covering Madera, Fresno, Kings, and Tulare counties) focuses on data digitization and texture model and hydrogeologic conceptual model development to support aquifer recharge potential mapping, defining important clay units (e.g. Corcoran Clay), and subsidence potential and mitigation. ## Maps and Models ## Datasets and Reports * [Digitized Lithology Logs - Four County Area](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/41ec1f67-cb0c-4d13-9d81-e514cdb1f880 "Digitized Lithology Logs - Four County Area") * [Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 4 ](https://data.cnra.ca.gov/dataset/aem/resource/eb09227e-32c7-4e11-94f5-359c9b202734 "Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 4") * [Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 5 ](https://data.cnra.ca.gov/dataset/aem/resource/366d53c0-6387-42d3-a39f-68aed6291853 "Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 5") * [AEM datasets - Statewide AEM Surveys, Survey Area 4](https://data.cnra.ca.gov/dataset/aem/resource/c282ee67-de22-45df-9293-b6478c9d3b24 "AEM datasets - Statewide AEM Surveys, Survey Area 4") * [AEM datasets - Statewide AEM Surveys, Survey Area 5](https://data.cnra.ca.gov/dataset/aem/resource/e0710451-2b66-485b-aacb-a9231f5de260 "AEM datasets - Statewide AEM Surveys, Survey Area 5")
Q1-Q4 2020 Prescription Drugs WAC Increases - 5 Year History
Water Chemistry data for year 2001 from the California Environmental Data Exchange Network (CEDEN).
COVID-19 Vaccinations By Demographics - Data Dictionary
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 10/9/2023 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
Data Dictionary - Total Construction Cost of Healthcare Projects
Analysis Tool - Data2HSM via Gaussian Mixture Model
The Data2HSM via Gaussian Mixture Model tool ingests the AEM data and groups the data into a user-specified number of clusters that are interpreted as stratigraphic units in the hydrostratigraphic model (HSM). File contains a preliminary description of the Data2HSM via Gaussian Mixture Model tool. Tool expected to be publicly available in Early/Mid 2025.
Fecal Indicator Bacteria Monitoring Results - 2010-2020
Seismic Compliance Data By County for General Acute Care Hospitals (CSV)
Tissue data for year 2021 from the California Environmental Data Exchange Network (CEDEN).
A compiled list of asbestos analysis results for the SWP Routine Water Quality Monitoring Project. These samples are collected quarterly at 3-4 sites. Data from before 2009 have not been compiled into CSV format but are available as laboratory reports. These reports can be obtained by submitting a [record request](https://californiadwr.mycusthelp.com/WEBAPP/_rs/(S(3q2tw3v2guzqsnh1objifgtv))/supporthome.aspx). Data from 2009 and after are available in CSV format in this dataset with the exception of data during 2011-2014 when several reports were lost.
Q1-Q4 2023 Prescription Drug WAC Increases
Habitat data for year 2021 from the California Environmental Data Exchange Network (CEDEN).
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 8/7/2023 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
InjuredWitnessPassengers raw data file of 2017; Updated: 1/15/2026 7:40:46 PM
Submittal template for suggested corrections
The California Department of Water Resources welcomes feedback to improve the accuracy of the Well Completion Report database. Please email suggested corrections to benjamin.brezing@water.ca.gov using the Submittal_Template_For_Suggested_Corrections.xlsx file.
Habitat data for year 2002 from the California Environmental Data Exchange Network (CEDEN).
Geologic Logs - Generalized Lithology and Texture Classification (Under Development)
2019 (v2020) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Construction Discharge - Monitoring Data
January 2026 Monthly Update (Q1-Q4 2025 data) - Prescription Drug WAC Increases - 5 Year History (CSV)
2019 (v2023) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Zip file containing all resources from Periodic Groundwater Level Measurements dataset.
Raw AEM data and auxiliary data for Survey Area 8.
2005-2015Q3 (v5.0) Technical Notes-Rates of Preventable Hospitalizations for Selected Medical Conditions by County
[Technical Notes] The dataset contains hospitalization counts and rates, statewide and by county, for 12 ambulatory care sensitive conditions plus 4 composite measures. Hospitalizations due to these medical conditions are potentially preventable through access to high-quality outpatient care. The conditions include: diabetes short-term complications; perforated appendix; diabetes long-term complications; chronic obstructive pulmonary disease (COPD) or asthma in older adults (age 40 and over); hypertension; heart failure; dehydration; bacterial pneumonia; urinary tract infection; angina without procedure (retired, 2016); uncontrolled diabetes; asthma in younger adults (age 18-39); and lower-extremity amputation among patients with diabetes. The composite measures include overall, acute conditions, chronic conditions, and diabetes (new, 2016). The data provides a good starting point for assessing quality of health services in the community. The data does not measure hospital quality. Note: In 2015, HCAI only released the first three quarters of data due to a change in the reporting of diagnoses from ICD-9-CM to ICD-10-CM codes, effective October 1, 2015. Due to the significant differences resulting from the code change, the ICD-9-CM data is distinguished from the ICD-10-CM data in the data file beginning in 2016.
Fecal Indicator Bacteria Monitoring Results - 2020 to present
Survey Area 1 - Salinas Valley Fact Sheet
Survey Area 2 - Data Report Appendices - Eastern Basins (Tulelake, Big Valley, Fall River Valley)
Appendices to the Data Report for the eastern groundwater basins within Survey Area 2 - Tulelake, Big Valley, and Fall River Valley. File updated on 10/19/2022.
Percentage of Deaths Attributed to RSV in...
Wastewater Violations Linked to Enforcement Actions, 2005-2016
This dataset from the California Integrated Water Quality System (CIWQS) provides a list of enforcement action identification numbers and the identification numbers of the violation record that led to the enforcement action. A single violation record can be linked to multiple enforcement actions. An enforcement action can be linked to multiple violations. Additional information about violations and enforcement actions can be found within related datasets from CIWQS.
Electrical Resistivity Depth Slices and Shallow Subsurface Average Maps
This zipped shapefile provides maps showing electrical resistivity (ohm-meters) depth slices and shallow subsurface average derived from the Statewide Airborne Electromagnetic (AEM) Survey data available at https://data.cnra.ca.gov/dataset/aem. The AEM data for a depth slice are displayed using a local polynomial interpolation on a 1 kilometer line buffered around the flown flight line. The depth slice intervals were defined by the AEM data inversion geometry and were not resampled. The shallow subsurface average map represents the average over the 0-17 meter depth interval. The interpolation defined as the depth weighted average electrical resistivity value over the defined interval.
Survey Area 5 - Supporting Data - PROVISIONAL
Package of compiled data used to support the AEM data interpretation, including digitized well completion reports, geophysical logs, water quality and water levels. Well completion report PDFs available upon request. File updated on 1/14/2026. *** ###Superseded Data Releases: This dataset has been revised from the original 12/6/2022 publication. The specific data revisions from the original publication can be found [here](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/c1d2642c-33b1-420f-9ccd-a67551cda47e "here"). A description of general revisions is below. Lithology log spreadsheets: * OSCWR Well IDs and links added * Duplicates deleted between Survey Areas (e.g. logs in both SA 5 and 6) * Errors in depth and/or lithology description fixed (errors that originated in the digitization process) * Errors in depth and/or lithology description flagged (error that originated in the WCR) Geophysical log spreadsheet: * Oil and gas API numbers and links added Email Basin.Characterization@water.ca.gov to request a superseded dataset. ***
2016 (v2022) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
COVID-19 Vaccines Administered By VEM Quartile
Survey Area 11 - Data Report - Eastern Sierras
Data Report for Survey Area 11 (Eastern Sierras - Indian Wells Valley, Rose Valley, Owens Valley, and Fish Slough groundwater subbasins). File updated on 9/13/2024
2020 (v2022) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Flown flight lines for Survey Area 11. Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85). File updated 3/22/2024.
California Grants Portal - Updated Daily
2017 (v2023) Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Survey Area 7 - Data Report - Sierra Valley
Data Report for Survey Area 7 (Sierra Valley groundwater subbasin). File updated on 10/19/2023
San Joaquin Valley (other) - Digitized lithology and geophysical logs
Digitized lithology and geophysical logging data for the areas outside of the Madera/North Kings, Western San Joaquin Valley, and Four County Investigation areas. File updated 1/13/2026.
Survey Area 6 - Flown Survey Lines - PROVISIONAL
Provisional flown flight lines for Survey Area 6 (Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, Solano, Livermore, South American, North American, Yolo, Sutter, South Yuba, and North Yuba groundwater subbasins). Flight lines can also be viewed online using the AEM Flight Line Map (https://data.cnra.ca.gov/dataset/aem/resource/8a020073-20e4-4feb-9271-fe8f76c99a85).
Wastewater Facilities Permits & Orders Data Dictionary
SWAMP Water Quality Results - Data Dictionary
2016-2019 (v2020) ReadMe-Rates of Preventable Hospitalizations for Selected Medical Conditions by County
[ARCHIVE 2020-2023] CalCAT Forecasts and Nowcasts Historical Archive
Zipped file containing one file each for COVID-19 Nowcasts, COVID-19 and Influenza Forecasts and Variant Proportion Nowcasts as shown on CalCAT from 2020 through 2023. The data dictionaries for the files are available at https://data.chhs.ca.gov/dataset/calcat.
Survey Area 6 - Data Report - Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, and Livermore Valley
Data Report for Survey Area 6 (Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, and Livermore Valley groundwater subbasins). File updated on 5/24/2023.
2016-2018 (v2019) Technical Notes-Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
CEDEN Habitat Data (Zipped CSV - All Years)
Zipped CSV file containing all habitat data from the California Environmental Data Exchange Network (CEDEN).
2023 (v2024) ReadMe-Rates of Preventable Hospitalizations (Age<18) for Selected Medical Conditions by County
Respiratory Virus Dashboard Metrics - Testing Data Dictionary
Survey Area 5 - Data Report Appendices - Merced, Turlock, and Modesto
Appendices to the Data Report for Survey Area 5 (Merced, Turlock, and Modesto groundwater subbasins). File updated on 2/8/2024.
(ARCHIVED) Respiratory Virus Dashboard Metrics: Hospitalizations
Data is from the California Department of Public Health (CDPH) Respiratory Virus State Dashboard at...
Sacramento Valley Regional Investigation
The Sacramento Valley Regional Investigation focuses on providing data digitization, texture model development and analysis to support aquifer recharge potential mapping. ## Maps and Models * [Sacramento Valley - Texture Model (Version 2025.1)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/087e6e7c-56cd-443f-a7e4-868428e94d1f "Sacramento Valley - Texture Model (Version 2025.1)") * [Sacramento Valley - Aquifer Recharge Potential Maps (Version 2025.1)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/6eea2799-5b67-4cfb-925b-c30c2098429e "Sacramento Valley - Aquifer Recharge Potential Maps (Version 2025.1)") ## Datasets and Reports * [Digitized Lithology Logs - Sacramento Valley Groundwater-Surface Water Simulation Model (SVSim) ](https://data.cnra.ca.gov/dataset/svsim/resource/544623e2-0cd5-4c5b-827f-affa4abf4e16 "Digitized Lithology Logs - Sacramento Valley Groundwater-Surface Water Simulation Model (SVSim)") * [Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 6 ](https://data.cnra.ca.gov/dataset/aem/resource/e40fa03b-f62d-443d-a290-672405c0a3a4 "Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 6") * [Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 7 ](https://data.cnra.ca.gov/dataset/aem/resource/ac9ed1fe-1487-4d31-a88b-361a8d584706 "Digitized lithology and geophysical logs - Statewide AEM Surveys, Survey Area 7") * [AEM datasets - Statewide AEM Surveys, Survey Area 6](https://data.cnra.ca.gov/dataset/aem/resource/45bd2fc2-dcde-4224-b8de-0775c7e81761 "AEM datasets - Statewide AEM Surveys, Survey Area 6") * [AEM datasets - Statewide AEM Surveys, Survey Area 7](https://data.cnra.ca.gov/dataset/aem/resource/7cd69e0f-5478-46ab-96f7-be9349cd651e "AEM datasets - Statewide AEM Surveys, Survey Area 7")
Seismic Deadline Extensions Granted for California Hospitals (CSV)
This dataset lists the General Acute Care (GAC) Hospitals that have been granted extensions for seismic compliance; facilities that currently have extension requests under review are not included in this table. Extensions are sorted by County, by hospital building.
Survey Area 7 - Data Report - North Sacramento Valley
Data Report for Survey Area 7 (North Sacramento Valley - Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope and Bend groundwater subbasins ). File updated on 6/30/2023
ArcGIS Map Service of Well Completion Reports Data
Q1-Q4 2019 Prescription Drugs WAC Increases
2016-2020 (v2021) ReadMe-Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Q1-Q4 2019 Prescription Drugs WAC Increases - 5 Year History
Aquifer Recharge Potential Mapping Process Document (Version 2025.2 - Draft)
###Description The Aquifer Recharge Potential (ARP) Process Document describes the datasets and analyses used to create ARP maps. ARP maps identify locations that have relatively higher potential for managed aquifer recharge (MAR) and are intended to be used as a screening tool. ###Version 2025.2 Publication Date: 10/24/2025 ### Version History Version 2025.2 (Released October 2025): Revised approach for incorporating modified and unmodified SAGBI into the soil conditions sub-indices. Addition of the Shallow (Built) Aquifer Recharge Potential map type. Version 2024.1 (Released October 2024) ###Process Document and Use Disclaimer DWR makes no warranties, representations, or guarantees, either expressed or implied, as to the accuracy, completeness, or correctness of the analytical process provided in this Process Document or related nor accepts or assumes any liability arising from the use of the Process Document. Neither the Department nor any of the data sources, datasets, or maps shall be responsible for any errors or omissions, or for the use or results obtained from using this information. A Groundwater Sustainability Agency is not required to use this Process Document, and its use does not guarantee the adequacy of a Groundwater Sustainability Plan that relies on such analytical processes.
2016-2021 (v2022) ReadMe-Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Safe to Swim 2020-present (no longer updated)
This data resource will no longer be updated. Please use "Safe to Swim Results/Geomeans 2020 to present" resource instead.
This service is under development as part of ongoing enhancements to the SGMA Data Viewer and CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.
Includes information from manually created cases to group similar reports. Cases are an organizational tool for technical staff and does not reflect on the severity of a report.
Digitized Lithology and Geophysical Logs
Lithology and geophysical logging data have been digitized to support the Statewide AEM Survey Project and will continue to be digitized to support Basin Characterization efforts. Well lithology and geophysical logs located in a study area were compiled with the objective of obtaining two high-quality logs in each of the Public Land Survey System (PLSS) one-mile square sections that the flight lines cross. High-quality lithology logs were defined as having a verified location accuracy of less than 50 meters (164 feet) and having an average lithology description interval of less than 30 meters (98 feet). High-quality well lithology logs were digitized and tabulated by transcribing the original lithology descriptions and categorized into the free-form, the Unified Soils Classification System (USCS), and texture descriptions. High-quality geophysical logs were defined as being less than 40 years old and having an image quality that could be digitized. Digitized geophysical logs are provided as .las files. All digitized lithology logs with Well Completion Report IDs will be imported back into the OSWCR database. ### Basin Characterization Digitized Lithology and Geophysical Logs * [Local Investigation: Madera and North Kings](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/1d08d5ff-427d-4d77-9d39-89caca3c34fe "Local Investigation: Madera and North Kings") * [Local Investigation: Western San Joaquin Valley](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/8757704f-6f98-484d-bd4c-eb2fa08ac080 "Local Investigation: Western San Joaquin Valley") * [Regional Investigation: Four County Area (Madera, Fresno, Kings and Tulare counties)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/41ec1f67-cb0c-4d13-9d81-e514cdb1f880 "Regional Investigation: Four County Area (Madera, Fresno, Kings and Tulare counties)") * [Regional Investigation: San Joaquin Valley (Kern County)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/d0f5505f-d634-423e-9329-7d553030aff8 "Regional Investigation: San Joaquin Valley (Kern County)") * [Regional Investigation: San Joaquin Valley (other)](https://data.cnra.ca.gov/dataset/dwr-basin-characterization/resource/8fffe374-d89f-4c40-b115-307e8752c537 "Regional Investigation: San Joaquin Valley (other)") ### Statewide AEM Survey Digitized Lithology and Geophysical Logs Data are cataloged by Survey Area. Basins covered in each Survey Area are provided below. * [Survey Area 1: 180/400 Foot Aquifer (partial), East Side (partial), Upper Valley, Forebay Aquifer, Paso Robles, Atascadero (limited), Adelaida (limited), Cuyama Valley](https://data.cnra.ca.gov/dataset/aem/resource/1f5509ec-6d57-4da4-8e7a-660d4c94efcd "Survey Area 1: 180/400 Foot Aquifer (partial), East Side (partial), Upper Valley, Forebay Aquifer, Paso Robles, Atascadero (limited), Adelaida (limited), Cuyama Valley") * [Survey Area 2: Scott River Valley, Shasta Valley, Butte Valley, Tulelake, Fall River Valley (limited), Big Valley (Modoc/Lassen County)](https://data.cnra.ca.gov/dataset/aem/resource/1f2275fb-e001-45b9-9749-3d3a216ab7ef "Survey Area 2: Scott River Valley, Shasta Valley, Butte Valley, Tulelake, Fall River Valley (limited), Big Valley (Modoc/Lassen County)") * [Survey Area 3: Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, Sonoma Valley](https://data.cnra.ca.gov/dataset/aem/resource/8d405643-cb7f-4c3d-9333-736eeeb6ffd4 "Survey Area 3: Big Valley (Lake County), Ukiah Valley, Santa Rosa Plain, Petaluma Valley, Sonoma Valley") * [Survey Area 4: White Wolf, Kern County, Tulare Lake, Tule, Kaweah](https://data.cnra.ca.gov/dataset/aem/resource/eb09227e-32c7-4e11-94f5-359c9b202734 "Survey Area 4: White Wolf, Kern County, Tulare Lake, Tule, Kaweah") * [Survey Area 5: Pleasant Valley, Westside, Kings, Madera, Chowchilla, Merced, Turlock, Modesto, Delta-Mendota](https://data.cnra.ca.gov/dataset/aem/resource/366d53c0-6387-42d3-a39f-68aed6291853 "Survey Area 5: Pleasant Valley, Westside, Kings, Madera, Chowchilla, Merced, Turlock, Modesto, Delta-Mendota") * [Survey Area 6: Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, Solano, Livermore, South American, North American, Yolo, Sutter, South Yuba, North Yuba](https://data.cnra.ca.gov/dataset/aem/resource/e40fa03b-f62d-443d-a290-672405c0a3a4 "Survey Area 6: Cosumnes, Tracy, Eastern San Joaquin, East Contra Costa, Solano, Livermore, South American, North American, Yolo, Sutter, South Yuba, North Yuba") * [Survey Area 7: Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope, Bowman, Bend, Millville, South Battle Creek, Anderson, Enterprise, Eel River, Sierra Valley](https://data.cnra.ca.gov/dataset/aem/resource/ac9ed1fe-1487-4d31-a88b-361a8d584706 "Survey Area 7: Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope, Bowman, Bend, Millville, South Battle Creek, Anderson, Enterprise, Eel River, Sierra Valley") * [Survey Area 8: Seaside, Monterey, 180/400 (partially surveyed Summer 2021), Eastside (partially surveyed Summer 2021), Langley, Pajaro, Santa Cruz Mid-County, Santa Margarita, San Benito, and Llagas (partial)](https://data.cnra.ca.gov/dataset/aem/resource/8c59ee43-1ad0-4860-9746-a4815330aed6 "Survey Area 8: Seaside, Monterey, 180/400 (partially surveyed Summer 2021), Eastside (partially surveyed Summer 2021), Langley, Pajaro, Santa Cruz Mid-County, Santa Margarita, San Benito, and Llagas (partial)") * [Survey Area 9: Basin Characterization Pilot Study 1 - Madera and Kings](https://data.cnra.ca.gov/dataset/aem/resource/1e4bd143-63ec-4c5c-80ed-5dcf07ad1234 "Survey Area 9: Basin Characterization Pilot Study 1 - Madera and Kings") * [Survey Area 10: San Antonio Creek Valley, Arroyo Grande, Santa Maria, San Luis Obispo, Los Osos Area, Warden Creek, Chorro Valley (limited), Morro Valley (limited)](https://data.cnra.ca.gov/dataset/aem/resource/cfd1b037-cc3d-45d3-a519-38f4a5c37a0d "Survey Area 10: San Antonio Creek Valley, Arroyo Grande, Santa Maria, San Luis Obispo, Los Osos Area, Warden Creek, Chorro Valley (limited), Morro Valley (limited)") * [Survey Area 11: Indian Wells Valley, Rose Valley, Owens Valley, Fish Slough, Indio, Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited), Chocolate Valley (limited), Borrego Springs, and San Jacinto](https://data.cnra.ca.gov/dataset/aem/resource/262026e3-7a58-4e7b-ab77-4cba5b0ad7cf "Survey Area 11: Indian Wells Valley, Rose Valley, Owens Valley, Fish Slough, Indio, Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited), Chocolate Valley (limited), Borrego Springs, and San Jacinto") * [Statewide AEM Survey Supporting Data - Summary of Revisions (1/14/2026)](https://data.cnra.ca.gov/dataset/aem/resource/f511fbd7-1e7d-44e2-9b2a-00e32f4ad88a "Statewide AEM Survey Supporting Digitized Data - - Summary of Revisions (1/14/2026"): Files summarize revisions to the original Statewide AEM Survey Project digitized supporting data .
January 2026 Monthly Update (Q1-Q4 2025 data) - Prescription Drugs Introduced to Market (Excel)
Current Groundwater Levels (GIS Feature Service)
Points representing monitoring wells in DWR's groundwater elevation database which have a groundwater elevation measurement reported in the last 18 months. Information on the most recent measurement is included. This information is based on the DWR Periodic Groundwater Levels dataset that contains seasonal and long-term groundwater level measurements collected by the Department of Water Resources and cooperating agencies in groundwater basins statewide. It also includes data collected through the Sustainable Groundwater Management Act (SGMA) Portal’s Monitoring Network Module (MNM), and the CASGEM (California Statewide Groundwater Elevation Monitoring) Program. Monitoring at active sites is typically done manually twice per year to capture the peak high and low values in groundwater elevations. However, the dataset also includes measurements recorded more frequently, monthly, weekly, or daily. The complete DWR Periodic Groundwater Levels dataset is available at https://data.cnra.ca.gov/dataset/periodic-groundwater-level-measurements. This service is under development as part of of ongoing enhancements to CalGW Live. Once the format is finalized, the service will be hosted at https://gis.water.ca.gov/arcgis/rest/services/. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.
EA_02_01 -- Identification Numbering for Water Quality Monitoring Sites
The Division of Operations and Maintenance uses an alphanumeric code to identify water quality sampling sites on the State Water Project. Each code has a two to three letter prefix, which identifies the area or region of the SWP where the site is located. The list of these prefixes and their associated area are listed in this document. A prefix from this list can be entered into the "Station Number" field of the WDL Station & County search window to find all sampling sites in that area.
California Department of Industrial Relations
California Grants Portal Grant Awards 2023-2024 - Updated Daily
Spatial CIMIS ETo Map — Daily Reference ETo for California, 2022 (v1)
This resource provides annual Reference Evapotranspiration (ETo) data for California for the year 2022. The dataset is referenced in EPSG:3310 — NAD83 / California Albers. Data type: Daily composite values.
2024 (v2025) ReadMe-Rates of Preventable Hospitalizations for Selected Medical Conditions by County
Crashes raw data file of 2026; Updated: 1/15/2026 7:00:05 PM
#Supporting Data An important part of the AEM data processing, inversion, and interpretation is the integration of existing supporting data. Supporting data utilized in the Statewide AEM Survey Project include well lithology, geophysical (electrical resistivity) logs, water level measurements, and water quality measurements. Data were compiled from groundwater sustainability agencies, counties, the Online System for Well Completion Reports (OSWCR), the California Geologic Energy Management (CalGEM) Well Finder, the Groundwater Ambient Monitoring and Assessment (GAMA), the California Statewide Groundwater Elevation Monitoring (CASGEM), and the United States Geologic Survey. Additional geophysical logs were purchased from a private company. Data compiled were screened to select high quality wells (described in the sections below). High quality wells were digitized and are provided in the Survey Area’s Supporting Data zip file, linked below: Survey Area 1: https://data.cnra.ca.gov/dataset/aem/resource/1f5509ec-6d57-4da4-8e7a-660d4c94efcd Survey Area 2: https://data.cnra.ca.gov/dataset/aem/resource/1f2275fb-e001-45b9-9749-3d3a216ab7ef Survey Area 3: https://data.cnra.ca.gov/dataset/aem/resource/8d405643-cb7f-4c3d-9333-736eeeb6ffd4 Survey Area 4: https://data.cnra.ca.gov/dataset/aem/resource/eb09227e-32c7-4e11-94f5-359c9b202734 Survey Area 5: https://data.cnra.ca.gov/dataset/aem/resource/366d53c0-6387-42d3-a39f-68aed6291853 Survey Area 6: https://data.cnra.ca.gov/dataset/aem/resource/e40fa03b-f62d-443d-a290-672405c0a3a4 Survey Area 7: https://data.cnra.ca.gov/dataset/aem/resource/ac9ed1fe-1487-4d31-a88b-361a8d584706 Survey Area 8: https://data.cnra.ca.gov/dataset/aem/resource/8c59ee43-1ad0-4860-9746-a4815330aed6 Survey Area 9: https://data.cnra.ca.gov/dataset/aem/resource/1e4bd143-63ec-4c5c-80ed-5dcf07ad1234 Survey Area 10: https://data.cnra.ca.gov/dataset/aem/resource/cfd1b037-cc3d-45d3-a519-38f4a5c37a0d Survey Area 11: https://data.cnra.ca.gov/dataset/aem/resource/262026e3-7a58-4e7b-ab77-4cba5b0ad7cf ##Well Lithology and Geophysical Logs ###High Quality Well lithology and geophysical logs located in the vicinity of the Survey Area were compiled with the objective of obtaining two high-quality logs in each of the Public Land Survey System (PLSS) one-mile square sections that the flight lines cross. High-quality lithology logs were defined as having a verified location accuracy of less than 50 meters (164 feet) and having an average lithology description interval of less than 30 meters (98 feet). High-quality well lithology logs were digitized and tabulated by transcribing the original lithology descriptions and categorized into the free-form, the Unified Soils Classification System (USCS), and texture descriptions. High-quality geophysical logs were defined as being less than 40 years old and having an image quality that could be digitized. Digitized geophysical logs are provided as .las files. ###Low Quality Well lithology and geophysical logs that were not within a one-mile square PLSS section that the flight lines cross or did not meet the high-quality criteria, were categorized as low-quality. Low quality wells were not digitized and are shown to provide the locations where lithology and geophysical logs were considered. ##Limitations Data are provisional. Map is under development. ###Integration of Supporting Data into Existing Databases The Supporting Data Map was developed for the purposes of displaying data compiled as a part of the Statewide AEM Survey Project. Digitized or refined data will be imported back into their original existing databases, like OSWCR or CalGEM.
Parties raw data file of 2016; Updated: 12/31/2025 8:44:17 PM
(ARCHIVED) Respiratory Virus Dashboard Metrics - Hospitalizations Data Dictionary
2020 (v2023) Rates of Preventable Hospitalizations for Selected Medical Conditions by County
California Drinking Water System Area Boundaries
The California State Geoportal provides service area boundaries of drinking water service providers, as verified by the Division of Drinking Water, State Water Resources Control Board. In order to provide an accurate data set of service area boundaries for California drinking water systems, the Division of Drinking Water of the California Water Resources Control Board (SWRCB DDW) has undertaken a project to vet and verify the data collected by the Tracking California's Water Boundary Tool (WBT).
County Code descriptions associated with the facility list.
Links to spatial data resources for the groundwater elevation monitoring stations (wells) maintained in the California Department of Water Resources’ (hereafter the Department) Enterprise Water Management database. Individual station information comes from a wide variety of sources, including and local and federal agencies, that conduct groundwater elevation monitoring within the state of California.
CEDEN Toxicity Data Submission Guideline Document 08-23-2013
Survey Area 2 - Data Report - Western Basins (Scott River Valley, Shasta Valley, Butte Valley)
Data Report for the western groundwater basins within Survey Area 2 - Scott River Valley, Shasta Valley, and Butte Valley. File updated on 10/19/2022.
Survey Area 7 - AEM Data 2 - PROVISIONAL
Data package containing the Aarhus Workbench processed AEM data for Survey Area 7. Survey Area 7 covers the following groundwater subbasins: Colusa, Butte, Wyandotte Creek, Vina, Los Molinos, Corning, Red Bluff, Antelope, Bowman, Bend, Millville, South Battle Creek, Anderson, Enterprise, Eel River, Sierra Valley. File updated on 5/12/2025.
Includes information about commonly used data flag.
California State Water Resources Control Board
ArcGIS Feature Service of Well Completion Reports Data