Stormwater Management Inspector Practice Exam

An anti-seep collar is designed to prevent the lateral movement of water around a structure, typically at the base of a pipe that passes through a dam or an earthen embankment. The primary purpose of the collar is to ensure that there is a proper seal, preventing water from seeping through the soil, which could lead to erosion or failure of the structure.

Using the same material as the barrel for the anti-seep collar is important because it ensures compatibility and structural integrity. When both the collar and the barrel are made from the same material, they can effectively bond together, which minimizes the potential for leaks or weak points where water could infiltrate. This approach also typically accounts for similar thermal expansion and contraction characteristics, which is critical in maintaining a consistent seal over time.

While other materials can be used in certain contexts, they might not provide the same level of effectiveness as those made from the same material as the barrel. For example, plastic materials may not bond well with concrete or metal barrels, natural clay could compress and lose its integrity over time, and cement-based substances might not provide the flexibility required in certain conditions. Thus, using the same material as the barrel assures that the design functions optimally by maintaining a continuous, reliable barrier against