About this Dataset

COVID-19 Sewershed Restricted Case Data

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.
Organization: State of California
Last updated: 2025-07-23T14:35:04.315386
Tags: california-department-of-public-health, covid, covid-19, covid-19-coronavirus, covid19, wastewater

Tables

Data Dictionary - COVID-19 Sewershed Restricted Case Data

@usgov.ca_gov_covid_19_sewershed_restricted_case_data_1ba52.data_dictionary_covid_19_sewershed_restricted_case_data

3.24 kB
6 rows
4 columns

CREATE TABLE data_dictionary_covid_19_sewershed_restricted_case_data (
  "column" VARCHAR,
  "type" VARCHAR,
  "label" VARCHAR,
  "description" VARCHAR
);