When should a permit be held for a wet season evaluation of a septic system site?

A permit should be held for a wet season evaluation of a septic system site particularly when there is any doubt about the sufficient unsaturated soil depth. This is crucial because the presence of adequate unsaturated soil is essential for the proper functioning of a septic system. Unsaturated soil allows for the necessary filtration and treatment of effluent before it reaches the groundwater.

During a wet season evaluation, if there is uncertainty regarding whether the unsaturated soil depth is sufficient, it indicates that the site may not adequately support a septic system without risking system failure or environmental contamination. Assessing soil types, water percolation rates, and other factors during this time can help determine if the conditions are suitable for installing a septic system. Such evaluations are vital for ensuring long-term efficacy, health, and compliance with local regulations.

While conditions like saturated soil, a high water table, or fractured soil can also indicate challenging site conditions, the specific concern regarding unsaturated soil depth directly influences the decision to hold a permit for a thorough evaluation.