When you have a septic tank or more than one tank, you need to have all septic tanks inspected. This is whether you have a septic tank or alternative onsite wastewater treatment system. The new owners are responsible for filing the Notice of Transfer application. Normally the title company will do that for you. (ADEQ) Arizona Department of Quality regulates septic systems. There is a $50 charge to transfer each tank. The inspection must be done within 6 months prior to transfer of ownership.