What is a stormwater collection system designed to do?

A stormwater collection system is specifically designed to manage and channel rainwater or melted snow runoff from impervious surfaces like roads, driveways, and roofs. Its primary function is to prevent flooding and manage excess water during rain events.

In this context, excluding domestic and industrial wastes from stormwater is crucial because stormwater systems typically direct runoff into natural water bodies without treatment. Introducing domestic and industrial waste could overwhelm the system, lead to pollution, and pose health hazards. Therefore, the design of stormwater collection systems typically emphasizes the separation of these wastes to maintain the integrity and purpose of the stormwater infrastructure.

The other options involve actions or processes that are not standard functions of a stormwater collection system. Collecting all types of wastewater does not align with the system's goal to manage only stormwater, while reclaiming water for irrigation is usually part of a water reuse system rather than stormwater drainage. Similarly, filtering pollutants is typically more relevant to treatment processes in wastewater facilities rather than the initial capture and management of stormwater.