CEPSCI Post-Construction and Site Restoration

Question 1

What is 'permanent stabilization' in the context of post-construction erosion control?

Accepted Answer

Establishment of permanent vegetative cover or non-vegetative measures sufficient to prevent long-term erosion without ongoing maintenance

Answer

Installation of permanent concrete or asphalt on all disturbed areas

Answer

Removal of all temporary BMPs from the site

Answer

Completion of the structural aspects of the construction project

Question 2

What is a 'seed mix' and why is it important for post-construction stabilization?

Accepted Answer

A combination of grass and other plant species selected to provide rapid cover, erosion resistance, and long-term site compatibility

Answer

A blend of chemical stabilizers applied to soil

Answer

A mixture of fertilizers applied before seeding

Answer

A combination of topsoil and mulch used as a growing medium

Question 3

Which post-construction BMP is specifically designed to remove pollutants from stormwater before it discharges from a developed site?

Accepted Answer

A post-construction stormwater management facility such as a bioretention cell or wet pond

Answer

A silt fence

Answer

A diversion dike

Answer

A stabilized construction entrance

Question 4

What is 'bioretention' (rain garden) as a post-construction BMP?

Accepted Answer

A shallow, vegetated depression that captures and treats stormwater through filtration, infiltration, and plant uptake

Answer

A landscaped area designed to detain large volumes of stormwater in a pond

Answer

A system of underground pipes that collects and stores rainwater for reuse

Answer

A type of green roof that captures rainfall on building surfaces

Question 5

What is the primary goal of restoring native vegetation on a post-construction site?

Accepted Answer

To establish a self-sustaining plant community that prevents erosion, supports biodiversity, and requires minimal long-term maintenance

Answer

To satisfy landscaping aesthetic requirements only

Answer

To increase property values with ornamental plantings

Answer

To provide shade for construction workers after the project is complete

Question 6

After final grading, what is the recommended maximum time before temporary or permanent stabilization should be initiated on disturbed areas under the NPDES CGP?

Accepted Answer

14 days after grading activity has ceased in that portion of the site

Answer

30 days after grading ceases

Answer

90 days after the entire project is complete

Answer

No time limit is specified in the federal CGP