Site Assessment and Planning Flashcards

What is the primary purpose of a pre-construction site assessment for erosion and sediment control?

Answer: To identify potential erosion hazards and plan appropriate BMPs before disturbance begins

A pre-construction site assessment identifies potential erosion risks so that appropriate best management practices can be planned and implemented before soil disturbance occurs.

Which soil characteristic most directly influences erodibility on a construction site?

Answer: Soil texture and structure

Soil texture and structure determine how easily particles are detached and transported by water or wind, making them the primary factors in erodibility.

A site drainage map is used during site assessment to:

Answer: Identify natural drainage patterns and flow paths that may concentrate runoff

Drainage maps help inspectors understand natural flow paths so that BMPs can be placed to intercept runoff before it causes erosion or transports sediment off-site.

The RUSLE factor 'K' represents:

Answer: Soil erodibility

The K factor in RUSLE represents soil erodibility, quantifying a soil's susceptibility to detachment and transport by rainfall and runoff.

Which slope percentage is generally considered the threshold requiring more intensive erosion control measures?

Answer: 5%

Slopes of 5% or greater typically require more intensive erosion control measures because runoff velocity and erosive energy increase significantly above this threshold.

During site assessment, a CEPSCI inspector should evaluate the site's proximity to:

Answer: Water bodies, wetlands, and sensitive receiving waters

Proximity to water bodies, wetlands, and sensitive receiving waters determines the level of protection needed and may trigger additional regulatory requirements.