jritchie.com · weekly
SC2 Dash
SARS-CoV-2 in wastewater: Metro Vancouver, North Carolina and the West Coast
Weekly signals, each measured against its own past year, and the variants in circulation.
This week in brief
Metro Vancouver 88th percentile of its past year, stable at a high level; Washington and Oregon at their year's high and rising.
Week of 16 October 2026. Each region against its own past year (newest data 10 October 2026).
- Metro Vancouver: 88th percentile of the past year · stable at a high level · last this high Aug 2025 (across a method change) · data to 4 October 2026
- British Columbia: 85th percentile of the past year · stable at a high level · last this high Oct 2025 · data to 4 October 2026
- North Carolina: 92nd percentile of the past year · stable at a high level · last this high Oct 2025 · data to 10 October 2026
- Washington: 100th percentile of the past year · rising · last this high Sep 2025 · data to 10 October 2026
- Oregon: 100th percentile of the past year · rising · last this high Sep 2025 · data to 10 October 2026
- California: 94th percentile of the past year · stable at a high level · last this high Sep 2025 · data to 10 October 2026
- Santa Clara County: 87th percentile of the past year · stable at a high level · last this high Sep 2025 · data to 10 October 2026
- United States: 79th percentile of the past year · rising · last this high Feb 2026 · data to 10 October 2026
- Canada: 62nd percentile of the past year · rising · last this high Mar 2026 · data to 27 September 2026
People, whole populations by their state, province or territory:
- United States: 78% of people live in states where wastewater is high for its past year
- Canada: 16% of people live in provinces and territories where wastewater is high for its past year
How these are measured: Methodology changes.
Data: PHAC, BCCDC, Metro Vancouver, CDC, WastewaterSCAN, WHO, US Census Bureau, Statistics Canada. Not produced, reviewed or endorsed by any of these agencies. Sources and licences.
At a glance
Status
Loading this week's data…
British Columbia
Metro Vancouver wastewater is the Status card at the top.
North Carolina
West Coast
United States
Canada
Variants
This week's briefing
Methodology changes
How to read this
Terms, scales and caveats
Sources and licences
SC2 Dash is an independent, non-commercial summary. It is not produced, reviewed or endorsed by any of these agencies. Values are derived from their published data; see each source for the original figures and terms.
SC2 Dash is free and non-commercial: no ads, no sales. CDC does not endorse this site. WHO does not endorse this site.
- Non-commercial terms. Required by WastewaterSCAN (CC BY-NC 4.0), Metro Vancouver, WHO and the canada.ca terms.
- No changes to quoted text. Metro Vancouver's and BCCDC's terms forbid modifying their material, so their sentences are quoted verbatim and attributed. Figures SC2 Dash derives (medians, percentiles) say so.
- Share-alike. OpenStreetMap data is under the Open Database License; SC2 Dash shows plant locations on a map and does not redistribute them as a database.
- No official status. No agency names are used as endorsements, and no logos, crests or symbols appear here.
Public Health Agency of Canada
DatasetNational Wastewater Monitoring: latest level and trend by site (wastewater_trend.csv)
National Wastewater Monitoring: weekly viral concentration history (wastewater_aggregate.csv)
COVID-19 variant proportions, Canada (covid19-epiSummary-variants.csv)SC2 Dash usesWastewater levels, trends and history by site, province and country; Canada's variant shares
LicenceOpen Government Licence – Canada
AttributionContains information licensed under the Open Government Licence – Canada. (Source: Public Health Agency of Canada, Health Infobase, National Wastewater Monitoring / Canadian Respiratory Virus Surveillance Report.)
BC Centre for Disease Control (PHSA)
DatasetRespiratory virus activity in BC: weekly summary (PDF) Licence terms unclear
SC2 Dash usesUp to two sentences quoted from its weekly respiratory summary; no figures
LicenceLicence terms unclear
No published reuse licence found. SC2 Dash quotes short passages with attribution and takes its BC figures from PHAC (Open Government Licence – Canada).
AttributionBC Centre for Disease Control (Provincial Health Services Authority), Respiratory virus activity in BC: Weekly summary, 10 October 2026; and BCCDC Wastewater Surveillance dashboard (reporting.bccdc.ca).
Metro Vancouver Regional District (Metro Vancouver)
DatasetTesting for Viruses in Wastewater
SC2 Dash usesIts wastewater testing page, cited; plant-status sentences quoted verbatim; no figures or images
Licence© Metro Vancouver, non-commercial use
Attribution© Metro Vancouver Regional District (Metro Vancouver), Testing for Viruses in Wastewater, https://metrovancouver.org/services/liquid-waste/testing-for-viruses-in-wastewater
Centers for Disease Control and Prevention
DatasetCDC Wastewater Viral Activity Level for SARS-CoV-2, Influenza A and RSV (atcp-73re)
SARS-CoV-2 Variant Proportions (jr58-6ysp)SC2 Dash usesWastewater levels and variant shares
LicencePublic domain (U.S. Government)
AttributionSource: Centers for Disease Control and Prevention, National Wastewater Surveillance System Analytics Data Set (data.cdc.gov atcp-73re); CDC SARS-CoV-2 Variant Proportions (jr58-6ysp). Accessed 16 October 2026. Content derived by SC2 Dash; CDC does not endorse this site.
DatasetState/Territory Wastewater Data for Respiratory Viruses (notice)
SC2 Dash usesThe data-gap notice on its state wastewater page, quoted
LicencePublic domain (U.S. Government)
AttributionSource: CDC National Wastewater Surveillance System, State/Territory Wastewater Data for Respiratory Viruses, https://www.cdc.gov/wastewater/respiratory-viruses/state.html (updated October 16, 2026). CDC does not endorse this site.
WastewaterSCAN (Stanford, Emory, Verily)
DatasetCDC Wastewater Viral Activity Level for SARS-CoV-2, Influenza A and RSV (atcp-73re)
SC2 Dash usesSanta Clara County site values, relayed by CDC NWSS; SC2 Dash shows their median
LicenceCC BY-NC 4.0
AttributionThese data were collected as part of the WastewaterSCAN / SCAN project, a partnership between Stanford University, Emory University, and Verily, funded philanthropically through a gift to Stanford University. Licensed CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/); values shown are medians computed by SC2 Dash.
Values shown are medians computed by SC2 Dash from site data (changes made).
World Health Organization
DatasetTracking SARS-CoV-2 variants
SC2 Dash usesShort extracts: the names on its variant lists and their dates
LicenceWHO terms of use
AttributionSource: World Health Organization, Tracking SARS-CoV-2 variants, https://www.who.int/activities/tracking-SARS-CoV-2-variants (content last updated 28 July 2026). WHO does not endorse this site.
U.S. Census Bureau
DatasetState Population Totals and Components of Change: 2020-2025 (Vintage 2025), NST-EST2025-ALLDATA
SC2 Dash usesThe population of each state and DC, for the People bars
LicencePublic domain (U.S. Government)
The Census Bureau's citation policy asks users to cite it as the source; the People block's source line does.
Statistics Canada
DatasetPopulation estimates, quarterly (table 17-10-0009-01)
SC2 Dash usesThe population of each province and territory, for the People bars
LicenceStatistics Canada Open Licence
AttributionSource: Statistics Canada, Population estimates, quarterly (table 17-10-0009-01), 1 July 2026. Reproduced and distributed on an "as is" basis with the permission of Statistics Canada.
Natural Earth
DatasetNatural Earth map geometry
SC2 Dash usesCoastlines, borders and province shapes on the maps
LicencePublic domain
OpenStreetMap contributors
DatasetOpenStreetMap plant locations
SC2 Dash usesTreatment plant locations on the Metro Vancouver map
LicenceODbL 1.0
Attribution© OpenStreetMap contributors
Streamline
DatasetStreamline icons (Icons plan, premium licence)
SC2 Dash usesIcons
LicenceStreamline Premium Licence