What is defined as untreated liquid and solid human body waste generated by water-using fixtures?

Domestic wastewater is defined as the untreated liquid and solid human body waste that comes from various water-using fixtures, such as sinks, toilets, and showers in residential settings. This type of wastewater is primarily generated from everyday household activities and contains a mixture of organic matter, nutrients, and pathogens that need to be properly treated before being released into the environment or reused.

Industrial wastewater, on the other hand, is generated from manufacturing processes and can contain a range of contaminants different from those found in residential wastewater. Erosion control water is not relevant in this context, as it pertains more to water used in controlling soil erosion rather than human waste. Similarly, stormwater runoff refers to rainwater that flows over surfaces and can carry pollutants, but it is not classified as human body waste. Therefore, domestic wastewater is the correct answer, as it accurately reflects the nature of the waste generated in households.