PIC EPA Stormwater & Erosion Control 2

Question 1

Under the EPA Construction General Permit (CGP), a SWPPP must be developed and implemented before land disturbance begins on sites disturbing at least how many acres?

Accepted Answer

1 acre

Answer

The CGP requires a SWPPP for construction sites that disturb 1 or more acres, or that are part of a larger common plan of development.

Question 2

Which type of erosion control BMP is specifically designed to slow runoff velocity on steep slopes by creating a series of small check structures?

Accepted Answer

Rock check dams

Answer

Rock check dams are placed in drainage channels or swales to reduce flow velocity and allow sediment to settle before water leaves the site.

Question 3

During a paving project, a contractor places a concrete washout pit 30 feet from a storm drain inlet. What is the primary concern with this placement?

Accepted Answer

It violates minimum setback requirements from storm drains

Answer

Concrete washout areas must be placed well away from storm drains and waterways to prevent high-pH washwater from entering the storm system.

Question 4

What is the purpose of a stabilized construction entrance (SCE) at a paving project site?

Accepted Answer

To reduce tracking of sediment onto public roads by construction vehicles

Answer

A stabilized construction entrance, typically made of coarse aggregate, removes mud and sediment from vehicle tires before they exit the site onto public roads.

Question 5

Which document under the NPDES stormwater program identifies site-specific BMPs and is required to be kept on-site during construction?

Accepted Answer

Stormwater Pollution Prevention Plan (SWPPP)

Answer

The SWPPP must be kept at the construction site and made available for inspection by the permitting authority at all times.

(PIC) Paving Inspector Certification Practice Test

(PIC) Paving Inspector Certification Practice Test

PIC EPA Stormwater & Erosion Control 2