How many beds are permitted on the same downhill plane if the total bed width exceeds the specified maximum?

The correct answer indicates that if the total bed width exceeds the specified maximum, no additional beds are permitted on the same downhill plane. This regulation is typically in place to prevent issues related to soil saturation and prevent contamination of groundwater. When multiple septic beds occupy a downhill plane, the risks associated with the discharge of effluent into saturated soils increase, which can lead to environmental and regulatory concerns. Therefore, maintaining the specified maximum ensures the effectiveness of the septic system and protects public health and the environment.

In this scenario, any excess width beyond the limit means the system cannot safely handle additional beds due to the increased risk of failure, making it essential to adhere strictly to the maximum bed width regulations.