Authorities have had concerns that covid-19 may be going undetected in the Queensland - New South Wales border zone, as an abundance of home septic tanks has been causing inaccuracies in sewage testing.
Testing has so far proved accurate in detecting one positive case out of a sample size of ten thousand people.
But with roughly a quarter of Lismore’s residents not connected to the town’s sewerage system, authorities are worried there may be infected people in the local government area.