Massachusetts Wastewater Covid-19 Tracking:

Massachusetts Water Resources Authority : Covid-19 State Wastewater Graph

Due to so many people now testing at home, wastewater Covid-19 tracking is a better indication of the prevalence of Covid-19 counts in our community.

Link to Winchester Regional Waste Water Graph:  Regional Waste Water Link

Example of Graph below.  Clink the "Regional Waste Water Link" above, once on that page, click on "Trends" on left hand colum, then choose MWRA Northern for sampling location and desired time period below that.  The result will be similar to this outdated picture.