California Waste water Surfing USA13 May 2022 11:44
CDPH Wastewater Surveillance Network Dashboard
This dashboard provides an overview of wastewater surveillance of SARS-CoV-2 in California, with wastewater samples collected and analyzed by CDPH, wastewater utilities, and academic, laboratory, and other partners across the state (Cal-SuWers Network).
The dashboard includes maps displaying outlines of each participating wastewater treatment plant service area (aka sewersheds). These areas represent the wastewater collection areas for each respective treatment plant and show where wastewater is being monitored for SARS-CoV-2 within the Cal-SuWers Network across California. For each sewershed, the dashboard also shows the levels of SARS-CoV-2 found, over time.
Instructions for using this dashboard:
To see a list of all sewersheds being monitored, use the search feature on the map (left half of screen).
Select a sewershed area:
Select a sewershed (orange) on the map (left half of screen)
OR, use the search feature on the map to highlight a desired sewershed. Then click on that sewershed on the map (left half of screen) to view corresponding data.
Once a sewershed is selected, a zoomed-in map (top right half of screen) and graph (bottom right half of screen) showing wastewater concentrations over time are displayed:
To change the range of dates within the graph, use the sliding tool; "Change Sample Date".
To view data from another sewershed, click that sewershed on the map (or use the search feature). For sewershed(s) with data from multiple laboratories, select a "Data Source" (checkbox at the bottom left of main map panel) to change the data visualization.
To reset the map to initial view, click refresh on your browser.
To view an accessible version of data used in the CDPH Wastewater Surveillance Network Dashboard, download the CDPH Wastewater Surveillance Network Dashboard Accessible Data Excel (CSV) file.
Details
By selecting a sewershed (which includes the wastewater treatment plant service areas), you can see the SARS-CoV-2 RNA concentrations in wastewater for that location over time. Information about where the wastewater samples are taken are displayed at the top of the graph, as are details about which Cal-SuWers Network partner is contributing the data.
The x-axis represents the date of sample collection (the day the wastewater samples were collected from the site). The y-axis represents the SARS-CoV-2 concentration or amount of virus present per sample. As different laboratory and sample collection methodologies are used at different sites, "wastewater concentration" represents a different measurement at different locations, and absolute values are not displayed. See details about what is being measured underneath the location name at the top of the graph. Because different methodologies are used at different sites, direct comparisons of wastewater concentration values from different locations are discouraged.
The dots on the graph display the average concentrat
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