How are design allowances for soil dispersal components determined?

Design allowances for soil dispersal components are determined according to treatment performance levels because this approach ensures that the effluent from the septic system meets specific standards for filtering through the soil and being treated effectively. Treatment performance levels take into account the capability of the soil to absorb and treat wastewater, as well as the nature of the effluent produced by the system.

This means that systems designed with higher treatment performance levels may allow for different dispersal component sizes or layouts compared to systems with lower treatment capabilities. It ensures that the septic system functions properly while protecting the environment and human health by preventing contamination from insufficiently treated wastewater.

In determining design allowances, other factors such as soil type, tank size, and geographic location can influence system selection, but the basis for calculating the specific allowances for soil dispersal components is fundamentally rooted in the effectiveness of treatment. Thus, emphasizing treatment performance levels is crucial for ensuring regulatory compliance and system efficacy.