What does 'soil texture class' refer to in the context of OSSF rules?

In the context of On-Site Sewage Facilities (OSSF) rules, the term 'soil texture class' specifically refers to the size and composition of soil particles. This classification is crucial because it determines how water interacts with the soil, including its drainage capabilities, absorption rates, and stability. Soil texture influences the functionality and effectiveness of on-site sewage systems, as different textures (like sand, silt, and clay) have varying capacities to filter, absorb, and treat effluent. Understanding soil texture helps in the proper design and installation of OSSFs to ensure they operate efficiently and prevent environmental contamination.

Other aspects such as color, moisture retention, or land elevation may affect soil quality and drainage but are not directly addressed under the concept of soil texture class. Therefore, focusing on the particle size and composition is key to ensuring the effectiveness of sewage treatment systems.