Storm Water Pollution Prevention Plan (SWPPP) Practice Test

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When inspecting a silt fence, which of the following is not a deficiency to look for?

Undercutting
Track out
Detachment
Excessive sediment buildup

The correct answer is: Track out

When inspecting a silt fence, it is important to focus on specific deficiencies that can impact its effectiveness in controlling sediment from stormwater runoff. Undercutting occurs when water undermines the base of the fence, potentially causing it to collapse and allowing sediment to escape. Detachment refers to areas where the silt fence is no longer securely anchored in the ground, which also diminishes its functionality. Excessive sediment buildup is a concern as it indicates that the fence may be overwhelmed and unable to filter out additional sediment effectively. On the other hand, trackout is a term more associated with the transportation of sediment offsite, typically from construction activities where vehicles leave muddy conditions onto a roadway or public right of way. While trackout is an important concern for overall erosion and sediment control management, it is not a deficiency in the physical condition or installation of the silt fence itself. Therefore, among the listed deficiencies, trackout is not something that would directly detract from the effectiveness of the silt fence during an inspection.