What aspect does the National Plumbing Code focus on regarding wastewater?

The National Plumbing Code of Canada primarily emphasizes wastewater treatment and disposal. This focus is crucial as efficient and safe management of wastewater is essential for protecting public health and the environment. The code establishes standards and guidelines to ensure that wastewater systems are designed, installed, and maintained properly, which helps prevent contamination of soil and groundwater sources.

While drinking water quality is essential for public health, it is distinct from the focus on wastewater management. Rainwater harvesting programs may also relate to water resource management but fall outside the scope of the plumbing code, which specifically addresses wastewater systems. Additionally, solid waste management deals with refuse and is separate from the directives concerning plumbing systems outlined in the code. Therefore, the emphasis on wastewater treatment and disposal aligns with the code's overarching goal of safeguarding health and environmental integrity through proper wastewater management practices.