Sand soils typically have a porosity range of?

Sand soils typically have a porosity range of 25-40%. This characteristic is essential in the context of On-Site Sewage Facilities, as porosity directly affects the ability of the soil to retain and transmit water, influencing how well a soil can naturally filter and treat wastewater. The larger particle size of sand allows for greater spaces between particles, leading to a higher porosity compared to finer soils like clay, which have much smaller particles that pack closer together, resulting in lower porosity. Understanding the porosity of different soil types is crucial for site evaluation in OSSF design, as it impacts drainage rates, saturation levels, and the overall effectiveness of the septic system in treating effluent.