What does "stormwater" typically consist of?

Stormwater typically consists of surface runoff and drainage from snowmelt. This definition encompasses the precipitation that falls on impervious surfaces such as roads and parking lots, where it cannot infiltrate into the ground. Instead, it flows over the surface, collecting pollutants like oil, debris, and heavy metals, which can adversely affect the water quality of nearby bodies of water.

Understanding stormwater is crucial in environmental compliance because it plays a significant role in water management and pollution control. Effective management strategies focus on controlling the quantity and quality of stormwater to mitigate flooding, reduce erosion, and protect aquatic ecosystems.

In contrast, groundwater seepage refers to water that flows through the soil and rock layers, which is distinct from the surface movements of stormwater. Wastewater discharge generally pertains to used water that comes from domestic, commercial, or industrial sources and has been treated or is untreated, which is not the primary focus when discussing stormwater. Industrial effluent specifically refers to the wastewater produced from industrial activities, further differentiating it from stormwater, which is primarily derived from precipitation events.