What is the setback distance from a lateral trench for cisterns?

The setback distance from a lateral trench for cisterns is 70 feet. This distance is established to protect the water quality in the cistern by ensuring that potential contaminants from the septic system do not flow into the water source. The 70-foot setback allows for adequate protection of groundwater, reducing the risk of contamination that could arise from proximity between these systems.

Maintaining a significant distance is a critical practice in septic system design and operation, as it helps prevent the migration of pathogens and nutrients from the septic system into the water sources used for drinking or irrigation, ensuring public health and safety. This standard reflects regulatory guidelines which aim to safeguard water supplies against potential threats from nearby septic systems.