A recent study of onsite septic systems in southwestern Wisconsin is shining a light on the importance of proper maintenance, backing up all the things you tell your customers about following the rules.The Southwest Wisconsin Groundwater and Geology study kicked off in 2018, and it’s testing hundreds of private wells in Grant, Iowa and Lafayette counties for the effects of failed septic systems nearby.In phase one of the study, researchers tested wells for bacteria or nitrates. The first round of testing showed that 42% of wells exceeded health standards, while another round of testing found 27% exceeded standards.In the second phase, researchers
