Which two elements are considered primary in stormwater management design?

In stormwater management design, the focus on quantity control and quality control is essential. Quantity control refers to managing the volume and rate of stormwater runoff to prevent flooding and erosion, while quality control involves treating and managing the pollutants contained in stormwater before they reach natural water bodies.

These two elements are foundational because they ensure that stormwater systems effectively mitigate the negative impacts of urbanization and land development on the environment. By controlling the quantity of water that enters water bodies, stormwater management can help reduce the risk of downstream flooding and protect infrastructure. Simultaneously, ensuring water quality safeguards aquatic ecosystems, public health, and compliance with regulatory standards.

This dual emphasis on both quantity and quality allows for a holistic approach to stormwater management, addressing immediate concerns like flooding while also considering long-term environmental impacts. This relationship is critical to the success of stormwater management practices and is why these elements are prioritized in design considerations.