Which type of project SWPPP is explicitly stated to require Narrative BMPs?

• A. Linear projects
• B. Nonlinear projects
• C. Industrial facilities
• D. Residential subdivisions

Answer: (A)

Linear projects require a narrative description of BMPs because they stretch across long corridors with varying site conditions and multiple work zones. A narrative BMP section communicates the overall approach to erosion and sediment control along the entire route, including where specific measures will be installed, who is responsible, and how the plan will be updated as conditions change. This flexibility is hard to capture with plan drawings alone, so the narrative ensures consistent implementation across all phases and segments of the project.

Nonlinear projects, by contrast, are typically discrete sites where BMPs can be clearly depicted and described on the plans for that single location, making a separate narrative description less essential. Industrial facilities and residential subdivisions usually follow a more fixed site layout, with BMPs documented in the drawings and associated plan notes rather than relying primarily on a standalone narrative for the entire project.