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2019 California Water Quality Status Report

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

Data files

Data title and descriptionAccess dataFile detailsLast updated

Fig. 1. California's Groundwater

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

DownloadZIP
08/10/19

Fig. 3. Toxicity and Urban Land Use

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

Download
CSV
08/10/19

Fig. 4-5. Sum Pyrethroid Toxic Units

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

Download
CSV
08/10/19

Fig. 7. Elk River Sediment Loads

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

DownloadZIP
08/10/19

Fig. 10. FHABs Illnesses by County (2018)

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

DownloadTXT
08/10/19

Fig. 11. Sampling stations for long-term bass lake monitoring.

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

DownloadZIP
08/10/19

Fig. 18. Mayfly Occurrence Data

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

Download
CSV
08/10/19

Fig. 20. Stream Quality Index Map

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data. View the 2019 California Water Quality Status Report. Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website. Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal. Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server. Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets. Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal. Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage. Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

Download
CSV
08/10/19

Supporting files

Data title and descriptionAccess dataFile detailsLast updated

Fig. 2. 1,2,3,-Trichloropropane

On December 14, 2017, the California Water Resources Control Board Division of Drinking Water (DDW) adopted a regulation promulgating a Maximum Contaminant Level (MCL) for 1,2,3-trichloropropane (1,2,3-TCP) of 0.000005 milligrams per liter (mg/L, or 5 parts per trillion or 5 ppt). This regulation required Community Water Systems (CWS) and Nontransient Noncommunity (NTNC) Water Systems to begin initial sampling of 1,2,3-TCP from their drinking water sources. Initial sampling began January 1, 2018, with the requirement of four quarterly samples to be completed during the year. The first three quarters of 1,2,3-TCP data from 2018 (Q1, Q2, and Q3) that have exceeded the MCL are compiled into the data file provided below. The dataset includes regulating agency district, water system name and number, county, population, sampling point, sample date, sample result, and facility status (e.g., Offline, Online - Not Treated, Online - Treated). This data file is a copy of the file available on the State Water Resources Control 1,2,3-TCP webpage. See the State Water Resources Control Board website for more information about the data and regulation.

XLSX
08/10/19

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