>>8905258
Doesn't mention water treatment, but they are testing in Delaware:
NEW CASTLE COUNTY, Del. (CBS) โ "A unique new study of sewer water in New Castle County estimates the number of people with COVID-19 is much higher than whatโs been reported. The study examined traces of COVID-19 bacteria in wastewater. The fight against COVID-19 has gone underground.
Biobot analyzes wastewater. In the case of COVID-19, the goal is to track traces of the virus found in waste to produce more accurate estimates of community infection rates without having to depend on the number of people who got tested.
โJust like you can measure antibody in blood, or measure viral DNA through a nasal swab, you can also measure a viral presence, a viral bacteria volume, through wastewater,โ Meyer said."
philadelphia.cbslocal.com/2020/04/23/coronavirus-delaware-new-castle-county-wastewater-suggests-10-times-more-people-infected-than-number-of-confirmed-cases/