What does the stormwater management plan primarily address?

The stormwater management plan primarily addresses post-construction stormwater runoff because it outlines strategies and best management practices to control and manage the quantity and quality of stormwater that flows from a site after construction activities have been completed. The plan typically includes measures to prevent pollution of water bodies and to ensure that the post-development runoff does not exceed pre-development levels, thereby protecting water quality and reducing flooding risks.

In the context of stormwater management, addressing post-construction runoff is vital because this phase involves the continued management of water as landscapes, infrastructure, and drainage systems are put into place. It encompasses the long-term strategies necessary to ensure sustainable water management and compliance with local, state, and federal regulations.

While runoff during construction and landscaping are important considerations for temporary erosion and sediment control measures, these are typically covered by different aspects of site management and are not the main focus of a stormwater management plan. Similarly, while managing runoff during heavy rains is critical, the overarching goal of a stormwater management plan is to address the ongoing runoff effects that occur after construction activities have concluded. This ensures that proper controls are in place to manage water effectively in the long term.