Which type of drainage is classified under sanitary drainage systems in the UPC?

Sanitary drainage systems are specifically designed to transport waste from plumbing fixtures to sewage treatment facilities or septic systems. The classification of sanitary drainage systems under the Uniform Plumbing Code (UPC) encompasses the transport of wastewater, which includes human waste, gray water, and other types of liquid waste generated from sanitary facilities.

The choice relating to wastewater disposal is identified as the core function of sanitary drainage systems. This system includes the collection and transport of this waste to ensure that it is safely and efficiently managed, preventing health hazards and environmental contamination.

Other types of drainage, such as stormwater drainage, are not included in sanitary drainage systems because they deal with rainwater and surface runoff rather than waste produced by human activities. Similarly, non-potable water systems pertain to water that is not safe for drinking but is not typically classified under sanitary drainage systems. Lastly, while sewage treatment matters are related, they do not fall under the direct categorization of the drainage systems themselves, as treatment processes address what happens after the wastewater has been collected, rather than how it is drained.