What is the minimum excavation width required for any excavation length?

The minimum excavation width of 1.5 feet is established to ensure safe working conditions and accommodate the necessary equipment and tools needed for installation of on-site sewage facilities. This width allows enough space for personnel to operate without risking collapse or encroachment into the excavation area. Additionally, a width of 1.5 feet provides sufficient room for any required inspections and makes it easier to comply with regulations regarding the installation of sewage systems.

Wider excavations may be necessary for certain configurations or types of installations, but the standard minimum width of 1.5 feet serves as a safe baseline for most installations. This requirement aligns with best practices in construction and safety protocols.