PIC EPA Stormwater & Erosion Control 3

Question 1

A paving inspector notices that silt fences on a project have been installed parallel to the slope contours but are sagging and not trenched in. What corrective action is required?

Accepted Answer

Re-install the silt fences with the fabric trenched and backfilled into the ground

Answer

Silt fence fabric must be trenched into the ground at least 6 inches and backfilled to prevent stormwater from undermining the fence and bypassing the BMP.

Question 2

Which EPA regulation established the framework for the NPDES Construction General Permit that governs stormwater discharges from construction sites?

Accepted Answer

Clean Water Act Section 402

Answer

Section 402 of the Clean Water Act established the NPDES program, under which the CGP is issued to regulate stormwater discharges from construction activities.

Question 3

What is the maximum slope gradient at which standard silt fence is considered an effective sediment control BMP without additional reinforcement?

Accepted Answer

10%

Answer

Standard silt fence is generally effective on slopes up to 1:10 (10%) gradient; steeper slopes require reinforced fence or alternative BMPs.

Question 4

During paving operations, a contractor uses a street sweeper daily on an adjacent road. Under stormwater regulations, this practice primarily addresses which type of pollution?

Accepted Answer

Sediment tracking from vehicles leaving the site

Answer

Daily street sweeping removes tracked sediment from public roadways, preventing it from washing into storm drains during rain events.

Question 5

When a construction project's SWPPP is amended to reflect site changes, who is responsible for signing and certifying the updated plan?

Accepted Answer

A responsible party with legal authority, such as the operator or authorized representative

Answer

SWPPP amendments must be signed and certified by the operator or an authorized representative who has legal responsibility for the project.

(PIC) Paving Inspector Certification Practice Test

(PIC) Paving Inspector Certification Practice Test

PIC EPA Stormwater & Erosion Control 3