Wastewater represents a pooled sample from a community- where everyone in the sewer shed contributes fecal samples to the wastewater/sewage. Wastewater and virus researchers have hypothesized that this pooled sample can be used to determine the quantity of SARS-CoV-2 in the community, and in turn be used to determine COVID19 prevalence, track trends in infection, determine hotspots, or determine changes in virus strains. In this talk, I will summarize the approaches being used by researchers around the world, the associated potential and challenges, and the current state of research in wastewater-based surveillance for SARS-CoV-2.