What is the definition of a Land Disturbing Activity (LDA)?

The correct definition of a Land Disturbing Activity (LDA) is any man-made change to the land surface affecting runoff characteristics. This definition encompasses a broad range of activities that alter the physical properties of the land.

When land is disturbed, it can significantly change how rainwater and other forms of precipitation interact with the surface. This includes changes to the vegetation cover, soil compaction, and the alteration of natural drainage patterns. Understanding this definition is crucial for effective stormwater management because these changes influence the quantity and quality of runoff. Proper management of LDAs is vital to minimize negative impacts on the environment, such as increased sedimentation, erosion, and pollution in waterways.

The other responses, while they might touch on aspects of land disturbance, do not fully capture the breadth of what constitutes an LDA. For instance, focusing solely on changes to vegetation or limiting the definition to construction activities excludes many other activities that can also impact land runoff and local ecosystems.