CESSWI Regulatory Compliance & Reporting 2

Question 1

Under the NPDES Construction General Permit, what is the maximum allowable turbidity benchmark for discharges to waters supporting cold-water fisheries?

Accepted Answer

25 NTU above background

Answer

The EPA's CGP sets a turbidity benchmark of 25 NTU above background for discharges to cold-water fisheries, which are more sensitive aquatic ecosystems.

Question 2

Which federal law primarily governs the regulation of stormwater discharges from construction sites as a point source of pollution?

Accepted Answer

Clean Water Act

Answer

The Clean Water Act Section 402 establishes the NPDES permit program, which regulates stormwater discharges from construction sites as point sources.

Question 3

A construction project disturbs 0.8 acres. Under federal NPDES rules, is a permit required?

Accepted Answer

No, only sites disturbing 1 acre or more require a permit

Answer

Federal NPDES Construction General Permits apply to sites disturbing 1 acre or more of land, so a 0.8-acre project does not trigger the federal permit threshold.

Question 4

What document must an operator submit to notify the permitting authority before construction begins under most NPDES Construction General Permits?

Accepted Answer

Notice of Intent (NOI)

Answer

A Notice of Intent (NOI) is submitted to obtain coverage under the NPDES Construction General Permit before earth-disturbing activities begin.

Question 5

Which scenario would trigger the need to file a Notice of Termination (NOT) under the NPDES CGP?

Accepted Answer

When final stabilization has been achieved and permit coverage is no longer needed

Answer

A Notice of Termination is filed once final stabilization has been achieved and the operator no longer needs permit coverage for the site.

(CESSWI) Certified Erosion, Sediment, and Storm Water Inspector Practice Test

(CESSWI) Certified Erosion, Sediment, and Storm Water Inspector Practice Test

CESSWI Regulatory Compliance & Reporting 2