What is the concentration of viruses in wastewater and sewage?

Wastewater already contains numerous potentially dangerous pathogens and for this reason wastewater treatment plants have strict protocols to ensure the safety of the personnel. According to current knowledge, this new virus is shed in stools, but it is questionable if it is still infectious after shedding and in sewage. The new virus is member of a group of viruses that do not have a significant waterborne transmission route. So the consensus based on current knowledge is that if the protective protocols are followed, the risk for personnel is deemed low.