Which of the following is NOT a deficiency associated with silt fences?

The correct choice indicates that "track out" is not a deficiency associated specifically with silt fences. Silt fences are primarily designed to control sediment runoff by capturing sediment from stormwater. They function by slowing down water flow, allowing sediment to settle before the water can carry it away.

The other options listed are recognized issues that can occur with silt fences. Excessive sediment accumulation may happen if the silt fence is not maintained properly, leading to clogging and reduced efficacy. Tears or holes in the fabric of the silt fence can compromise its structural integrity, resulting in sediment bypassing the barrier. Undercutting occurs when water erodes the soil underneath the fence, potentially leading to failure of the installation.

In contrast, "track out" refers to sediment being transported off-site from vehicles and equipment, typically from construction areas, which is unrelated to the structural or functional integrity of silt fences. Therefore, while managing track out is an important aspect of stormwater pollution prevention, it does not pertain directly to the deficiencies associated with silt fences.