Can a percolation test be substituted for a site evaluation?

A percolation test cannot be substituted for a site evaluation because these two assessments serve different purposes in the context of wastewater management and septic system design. A percolation test specifically measures the rate at which water is absorbed into the soil, which is essential for determining the appropriate size and design of a septic system drain field.

In contrast, a site evaluation encompasses a broader assessment of the entire property, including factors such as soil type, topography, depth to groundwater, and proximity to water sources. This comprehensive analysis is crucial for deciding the most suitable wastewater treatment solution for the property and ensuring compliance with local regulations. The site evaluation provides a holistic understanding of the land's suitability for a septic system, while the percolation test focuses narrowly on soil absorption capabilities. Therefore, relying solely on a percolation test would overlook vital site characteristics necessary for effective septic system planning and function.