Leaching pit means an underground pit into which waste or wastewater has or can discharge and from which the liquid has or can seep into the surrounding soil with little or no treatment. A leaching pit is a failed or prohibited system for the purposes of these regulations.

What is the point of leach pits?

Septic drain fields, also called leach fields or leach drains, are subsurface wastewater disposal facilities used to remove contaminants and impurities from the liquid that emerges after anaerobic digestion in a septic tank. Organic materials in the liquid are catabolized by a microbial ecosystem.

How deep should a leach pit be?

Septic drainfield trench depth specification: A typical septic drainfield trench is 18 to 30 inches in depth, with a maximum soil cover over the disposal field of 36″; or per the USDA, 2 feet to 5 feet in depth.