Does anyone know of any case studies regarding JK destroying a well or septic system? Our environmental health department would really like to get its technicians involved in the great work our CISMA is doing, but needs some hard evidence that it relates directly to their jobs. Japanese knotweed is a no-brainer, we all know it can bust through the infrastructure they work on, like wells and septic systems. Unfortunately, they need more concrete documentation of those issues. Thanks, I really appreciate it!