CPESC Inspection Procedures 3

Question 1

What does the term 'stabilization' mean in the context of a final construction site inspection?

Accepted Answer

All exposed soil areas are covered with vegetation or non-erodible material meeting permit thresholds

Answer

Final stabilization requires that exposed soil be covered with uniform vegetative cover (typically 70–80% density) or permanent non-erodible materials.

Question 2

During an inspection, an inlet protection device is found to be bypassed by stormwater flowing around its edges. What is the BEST corrective measure?

Accepted Answer

Regrade the area around the device to direct flow through it and repair or extend the device

Answer

Regrading and repairing the device to eliminate bypass flow addresses the root cause of the failure rather than simply adding redundancy.

Question 3

Which of the following conditions at a construction entrance / exit would indicate a BMP failure requiring correction?

Accepted Answer

Vehicles are depositing mud and sediment onto the public roadway

Answer

Tracking of sediment onto public roads is the primary sign that a construction entrance is failing its purpose and requires immediate maintenance.

Question 4

An inspector notices that a temporary diversion dike has been overtopped and eroded. Which hazard does this MOST directly create?

Accepted Answer

Uncontrolled stormwater runoff bypassing sediment controls and reaching waterways

Answer

An overtopped diversion dike allows runoff to bypass the planned BMP system and discharge sediment-laden water directly to receiving waters.

Question 5

Under what condition may routine weekly inspections be reduced to once every 14 calendar days under many NPDES CGPs?

Accepted Answer

When the site has been temporarily stabilized and no earth disturbance is occurring

Answer

Most CGPs allow reduced inspection frequency when areas are temporarily stabilized and no active earth disturbance is occurring in those areas.

(CPESC) Certified Professional in Erosion and Sediment Control Practice Test

(CPESC) Certified Professional in Erosion and Sediment Control Practice Test

CPESC Inspection Procedures 3