I know that here in Tennessee, they've been checking the sewage for monitoring the pandemic. Don't see how they can allegedly tell which variants are present since they've already admitted they can't tell the difference between the variants from tests when they take a sample to determine if someone has the VID! Many people here, including medical doctors I know, have stated that they believe that the water may have the virus in it. Of course, this sounds like a conspiracy theory, but to many, it seems plausible.