What factor primarily influences the size of a mound system?

The primary factor influencing the size of a mound system is the daily wastewater flow from the home. This flow determines how much waste the system must manage on a regular basis, directly impacting the design and capacity of the mound. Systems are engineered to accommodate specific volumes of wastewater, ensuring that treatment occurs effectively and that the system remains functional over time.

When the warranted daily flow is higher, it necessitates a larger mound to provide adequate treatment and absorption capacity, as the system must be able to handle variations in wastewater output. Therefore, understanding the daily wastewater flow is essential for designing a mound system that meets health standards and operates efficiently.

While the type of soil, rainfall, and household size likely play roles in the overall assessment and performance of the system, they do not primarily dictate its size in the same way that daily wastewater flow does.