CBP Environmental Standards 3

Question 1

Under the EPA Construction General Permit, NPDES stormwater coverage is required when a project disturbs at least how much land?

Accepted Answer

One acre, or less if part of a larger common plan of development

Answer

Sites that disturb one acre or more, or that belong to a larger common plan disturbing one acre or more, need NPDES permit coverage.

Question 2

What does a builder submit to get coverage under a stormwater construction general permit?

Accepted Answer

A Notice of Intent (NOI)

Answer

Operators file a Notice of Intent to get coverage, then a Notice of Termination once the site is finally stabilized.

Question 3

Which is an EROSION control rather than a SEDIMENT control?

Accepted Answer

Hydroseeding and erosion control blankets

Answer

Erosion controls keep soil in place, while sediment controls capture soil after it has moved.

Question 4

What is the main purpose of a stabilized construction entrance made of crushed stone?

Accepted Answer

To reduce trucks tracking sediment onto public roads

Answer

Coarse stone shakes mud off vehicle tires before they reach paved streets.

Question 5

To work properly, a silt fence should be installed:

Accepted Answer

Along the contour, with the fabric toe trenched into the soil

Answer

Following the contour with the toe buried keeps runoff from undercutting the fence and lets sediment settle behind it.

CBP - Certified Builder Professional Practice Test