CPESC BMP Selection 4

Question 1

Which BMP is best suited to protect a stormwater inlet located in a paved parking lot during active grading nearby?

Accepted Answer

Filter fabric inlet insert or gravel-bag barrier

Answer

Filter fabric inserts or gravel-bag barriers are designed to fit within or around paved inlets, filtering sediment while allowing flow to continue.

Question 2

During BMP selection, the concept of 'treatment train' refers to:

Accepted Answer

Applying multiple BMPs in sequence to progressively reduce pollutants

Answer

A treatment train uses multiple BMPs in series so each successive control further reduces sediment and pollutant loads before discharge.

Question 3

A site has a 10-acre disturbed area draining to a single point. According to common design standards, which structure is typically REQUIRED at this scale?

Accepted Answer

Sediment basin

Answer

Sediment basins are typically required when the contributing drainage area exceeds 5 acres, making a basin mandatory for a 10-acre site.

Question 4

Which BMP is most effective at protecting bare soil slopes from raindrop splash erosion during initial land disturbance?

Accepted Answer

Erosion control blanket (ECB) pinned to the slope surface

Answer

Erosion control blankets protect the soil surface directly from raindrop impact and sheet flow while vegetation establishes underneath.

Question 5

When selecting polyacrylamide (PAM) as a BMP, which application method is recommended to prevent aquatic toxicity?

Accepted Answer

Apply anionic PAM to soil or runoff, never directly to waterways

Answer

Only anionic PAM is approved for erosion control, and it must be applied to soil or runoff on-site — never directly into waterways — to avoid aquatic toxicity.

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

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

CPESC BMP Selection 4