Is it true that Type B inlet protection may be used instead of Type A on an approved erosion and sediment control plan?

Type B inlet protection can indeed be used instead of Type A on an approved erosion and sediment control plan, under certain conditions. Type A inlet protection is typically utilized for small drainage areas and works well in preventing sediment from entering storm drains. However, Type B provides a more robust level of protection for larger drainage areas or when a higher volume of water is expected.

The flexibility to use Type B instead of Type A depends on the effectiveness of the measures in place for a specific site. If the plan has been approved and the change does not compromise the sediment control effectiveness or violate the requirements set forth in the erosion and sediment control plan, then it is permissible to opt for Type B in place of Type A.

It is essential to always consider not just the type of inlet protection, but also site-specific factors such as soil conditions, the likelihood of erosion, and the volume of stormwater management expected for that area. Understanding these factors ensures that sediment control measures are adequately designed to prevent sedimentation and pollution in local water bodies.