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. 2021 Jul 31;12:100111. doi: 10.1016/j.wroa.2021.100111

Table 1.

Descriptions of wastewater sampling locations including associated wastewater utility, clinical testing data sources, population, and flow rates. “d” represents the number of unique dates on which samples were collected. “n” represents the total number of wastewater samples collected, including extraction replicates.

Wastewater catchment area Wastewater treatment facility COVID-19 clinical data source Population Mean flow rate (MGD) Mean per capita flow (L/person/day) d n
Location K Influent to the wastewater treatment facility Central Contra Costa Sanitary District Contra Costa County Public Health Department 483,600 33 261 13 39
Location S Upstream of wastewater treatment facility East Bay Municipal Utility District Alameda County Public Health Department 469,344 35 282 20 22
Location A Upstream of wastewater treatment facility East Bay Municipal Utility District Alameda County Public Health Department 82,818 6 274 11 17
Location N Upstream of wastewater treatment facility East Bay Municipal Utility District Contra Costa County and Alameda County Public Health Departments 139,037 10 272 18 18
Location Q* Wastewater collection point for San Quentin Prison Central Marin Sanitation Agency California Department of Corrections and Rehabilitation open data portal Ranges from 3,587 (June) to 2,930 (September) 0.41 481 10 11
Location E Influent to the wastewater treatment facility San Jose - Santa Clara Regional Wastewater Facility (SJSC-RWF) Not applicable 1,500,000 103 278 19 48

For location Q, the population and clinical data are from incarcerated people only and do not include staff.