The requirements surrounding onlot septic systems can be confusing. I am glad to have my clients present to observe site evaluations and soils testing. This gives me an opportunity to show them the soil profile and discuss with them how soil characteristics play a role in renovating effluent and in determining the type of system that will ultimately serve their project.  Clients that better understand how the soils and their systems function have a clearer picture of what's really happening in the ground after their system is constructed.