For any given site, the soil loading rate is a function of the soil texture, structure and consistence; wastewater characteristics; and site characteristics. Permeability is related to all the soil characteristics. The SLR is the variable that quantifies the area needed to both accept and treat effluent. In general, finer-textured soils cannot accept as much effluent as coarser-textured soils, but on the other hand, finer soil is more effective in treatment. Soils with better-developed structure can accept more effluent than massive or weak-grade structured soils.Soil characteristics
The goal is to design a soil treatment area that can provide the needed treatment and
