HomeMy WebLinkAboutPresentation - WastewaterWastewater COVID tests
City Council
March 111 2021
GT O MOLECULAP
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Ground Truth in Molecular Diagnostics
Account Name: Veolia - City of Palm
Spring
GTID: 13093
Customer Provided Information:
Sample Data Report
COVID-19 testing In wasetewater 2.0
Report Generated 316M21
Account No: 33
Internal Location ID.
Location Identifier: Palm Spring VAW
Sample Collection Date: 3/2/2021 9.00:00 AM to 3/3/2021 9..W.00 AM
Sampling Method: How -proportional 24-hr composite
Average Influent flow over sample period (MGDj. 4.662
SARS-CoV-2 in Sample
Oetectefl.. Relow I. mli* i'f'otlantification
Viral Copies per Liter of Wastewater (recovery a4usted) 25,769
Estimated COVID-19 Disease Prevalence*
83 casP54*
0.19 % preva
alence rate —
Cases Estimation Range = 195 caves
Prevalence Rate Estimation Range = 0+10 to 0.44 %
•Estimated COVED-19 D,sease Prevalence values are calculated using the model pub-ished in Wastewater SARS-CoV-2
Concentratron and Loading Vanability from Grab and 24-hour camposrMe samples' by Curtis, ei al m medn" ;20201.
**Disclaimer. this is an estimate. Severa. assumptions must be made to calculate disease prevalence from this data rcluding v:ra1
shedding rates n feces of people nfected with COVED-19 of which there is cons.derabie uncertasnty with n the scientific
community
we stress that ftie best use o f this data is to coon€tor Viral Copies/dover, firue for trend analysis.
• COVID virus detected in wastewater has dropped from
21605,667 per liter on Dec. 28 = 4,823 cases
• To 25,769 per liter on March 2 = 83 estimated cases
• 99.98% Reduction in Estimated Positive Cases in 9 weeks!
• Number of COVID virus detected now at level detected in
September when Riverside County entered the Red Tier
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