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Surface Water - Indicator Bacteria Results

Indicator bacteria data from the California Environmental Data Exchange Network (CEDEN) and BeachWatch databases. Results include E. coli, enterococci, fecal coliforms, and total coliforms. There is some overlap with the CEDEN Water Chemistry dataset (https://data.ca.gov/dataset/surface-water-chemistry-results). Both datasets draw from the same source, but the resources here are updated more frequently to support the Safe to Swim map on the Water Boards My Water Quality portal (https://mywaterquality.ca.gov/safe_to_swim/index.html).

Data files

Data title and descriptionAccess dataFile detailsLast updated

Safe to Swim 2020-present

Download
CSV
242.38 MB
02/10/22

Safe to Swim 2010-2020

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CSV
883.33 MB
02/10/22

Safe to Swim 1969-2010

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CSV
1.55 GB
02/10/22

Monitoring sites for Safe to Swim

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CSV
516.94 KB
02/10/22

Sites for Safe to Swim (No longer updated)

Indicator bacteria data from the California Environmental Data Exchange Network (CEDEN) and BeachWatch databases. Results include E. coli, enterococci, fecal coliforms, and total coliforms. There is some overlap with the CEDEN Water Chemistry dataset (https://data.ca.gov/dataset/surface-water-chemistry-results). Both datasets draw from the same source, but the resources here are updated more frequently to support the Safe to Swim map on the Water Boards My Water Quality portal (https://mywaterquality.ca.gov/safe_to_swim/index.html).

Download
CSV
510.58 KB
08/10/19

Safe to Swim 2010-present (No longer updated)

Indicator bacteria data from the California Environmental Data Exchange Network (CEDEN) and BeachWatch databases. Results include E. coli, enterococci, fecal coliforms, and total coliforms. There is some overlap with the CEDEN Water Chemistry dataset (https://data.ca.gov/dataset/surface-water-chemistry-results). Both datasets draw from the same source, but the resources here are updated more frequently to support the Safe to Swim map on the Water Boards My Water Quality portal (https://mywaterquality.ca.gov/safe_to_swim/index.html).

Download
CSV
682.32 MB
07/02/20

Safe to Swim prior to 2010 (No longer updated)

Indicator bacteria data from the California Environmental Data Exchange Network (CEDEN) and BeachWatch databases. Results include E. coli, enterococci, fecal coliforms, and total coliforms. There is some overlap with the CEDEN Water Chemistry dataset (https://data.ca.gov/dataset/surface-water-chemistry-results). Both datasets draw from the same source, but the resources here are updated more frequently to support the Safe to Swim map on the Water Boards My Water Quality portal (https://mywaterquality.ca.gov/safe_to_swim/index.html).

Download
CSV
590.13 MB
07/02/20

Supporting files

Data title and descriptionAccess dataFile detailsLast updated

Data Dictionary of CEDEN Water Chemistry Data

PDF
08/10/19

More details

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

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