Green Plumbing

Answer: C - Overhead clearance is not a key measurement in determining septic system placement, either for high obstructions such as wires and branches or for low ones such as decks or outbuildings, which are strongly discouraged over any part of the septic tank or drainfield. The depth to water table affects the ability of the wastewater to be properly treated; the distance from the well is a contamination issue; and the slope of the site can aid or hinder water seepage and the work of gravity on the system.