NPDES Construction General Permit
Exam Practice Questions and Correct
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Rationales 2027 Q&A | Instant
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1. What is the primary purpose of the NPDES program?
A. Regulate construction schedules
B. Control discharges of pollutants to waters of the United States
C. Establish building-code requirements
D. Regulate workplace compensation
Correct Answer: B. Control discharges of pollutants to waters of the United
States
Rationale: The National Pollutant Discharge Elimination System (NPDES) provides
a permitting framework for regulating point-source discharges of pollutants to
waters of the United States.
2. Which federal statute established the NPDES permitting framework?
A. Clean Air Act
B. Safe Drinking Water Act
C. Clean Water Act
D. Federal Insecticide, Fungicide, and Rodenticide Act
Correct Answer: C. Clean Water Act
Rationale: The Clean Water Act established the federal framework for regulating
pollutant discharges through the NPDES program.
,3. What is the primary purpose of an NPDES Construction General Permit?
A. Establish building construction specifications
B. Authorize eligible stormwater discharges associated with construction while
establishing pollution-control requirements
C. Approve property ownership transfers
D. Establish contractor licensing requirements
Correct Answer: B. Authorize eligible stormwater discharges associated with
construction while establishing pollution-control requirements
Rationale: A Construction General Permit provides permit coverage for eligible
construction stormwater discharges and establishes requirements for controlling
pollutants associated with those discharges.
4. Which activity is most directly associated with construction stormwater
permitting?
A. Soil disturbance during site grading
B. Interior painting of a completed building
C. Office computer installation
D. Employee training unrelated to construction
Correct Answer: A. Soil disturbance during site grading
Rationale: Construction activities that disturb soil can generate sediment and
other pollutants in stormwater. Such activities are central to construction
stormwater permitting requirements.
5. What is the primary pollutant of concern associated with many construction
sites?
A. Sediment
B. Oxygen
C. Nitrogen gas
D. Natural sunlight
Correct Answer: A. Sediment
,Rationale: Construction activities commonly expose and disturb soil, making
sediment a major potential pollutant in stormwater discharges.
6. What is erosion?
A. Deposition of sediment in a basin
B. Detachment and transport of soil particles
C. Treatment of wastewater
D. Evaporation of stormwater
Correct Answer: B. Detachment and transport of soil particles
Rationale: Erosion involves the detachment and movement of soil by forces such
as rainfall, runoff, wind, or flowing water.
7. What is sedimentation?
A. The settling of transported particles
B. The removal of vegetation
C. The compaction of soil
D. The evaporation of water
Correct Answer: A. The settling of transported particles
Rationale: Sedimentation occurs when suspended or transported particles settle
out of moving water. Sediment-control BMPs often promote this process.
8. Which approach is generally most effective for reducing sediment pollution?
A. Prevent erosion at its source
B. Wait until sediment reaches a receiving water
C. Remove all downstream vegetation
D. Increase runoff velocity
Correct Answer: A. Prevent erosion at its source
, Rationale: Preventing soil from becoming detached reduces the amount of
sediment that must subsequently be captured. Source erosion control is therefore
a fundamental part of construction stormwater management.
9. What is the primary purpose of a Stormwater Pollution Prevention Plan
(SWPPP)?
A. Establish employee payroll procedures
B. Identify pollutant sources and specify measures to control stormwater
pollution
C. Replace all construction drawings
D. Determine the project's construction cost
Correct Answer: B. Identify pollutant sources and specify measures to control
stormwater pollution
Rationale: The SWPPP is the central planning document for identifying potential
pollutant sources and establishing appropriate stormwater control measures for
the construction site.
10. Which item would normally be relevant to a construction SWPPP?
A. Potential pollutant sources
B. Employee vacation preferences
C. Contractor advertising strategy
D. Building resale value
Correct Answer: A. Potential pollutant sources
Rationale: Identifying pollutant sources allows the project to select and implement
appropriate BMPs to prevent or minimize stormwater pollution.
11. What is a Best Management Practice (BMP)?
A. A construction accounting procedure
B. A practice or measure used to prevent or reduce pollution
Exam Practice Questions and Correct
Answers (Verified Answers) Plus
Rationales 2027 Q&A | Instant
Download Pdf
1. What is the primary purpose of the NPDES program?
A. Regulate construction schedules
B. Control discharges of pollutants to waters of the United States
C. Establish building-code requirements
D. Regulate workplace compensation
Correct Answer: B. Control discharges of pollutants to waters of the United
States
Rationale: The National Pollutant Discharge Elimination System (NPDES) provides
a permitting framework for regulating point-source discharges of pollutants to
waters of the United States.
2. Which federal statute established the NPDES permitting framework?
A. Clean Air Act
B. Safe Drinking Water Act
C. Clean Water Act
D. Federal Insecticide, Fungicide, and Rodenticide Act
Correct Answer: C. Clean Water Act
Rationale: The Clean Water Act established the federal framework for regulating
pollutant discharges through the NPDES program.
,3. What is the primary purpose of an NPDES Construction General Permit?
A. Establish building construction specifications
B. Authorize eligible stormwater discharges associated with construction while
establishing pollution-control requirements
C. Approve property ownership transfers
D. Establish contractor licensing requirements
Correct Answer: B. Authorize eligible stormwater discharges associated with
construction while establishing pollution-control requirements
Rationale: A Construction General Permit provides permit coverage for eligible
construction stormwater discharges and establishes requirements for controlling
pollutants associated with those discharges.
4. Which activity is most directly associated with construction stormwater
permitting?
A. Soil disturbance during site grading
B. Interior painting of a completed building
C. Office computer installation
D. Employee training unrelated to construction
Correct Answer: A. Soil disturbance during site grading
Rationale: Construction activities that disturb soil can generate sediment and
other pollutants in stormwater. Such activities are central to construction
stormwater permitting requirements.
5. What is the primary pollutant of concern associated with many construction
sites?
A. Sediment
B. Oxygen
C. Nitrogen gas
D. Natural sunlight
Correct Answer: A. Sediment
,Rationale: Construction activities commonly expose and disturb soil, making
sediment a major potential pollutant in stormwater discharges.
6. What is erosion?
A. Deposition of sediment in a basin
B. Detachment and transport of soil particles
C. Treatment of wastewater
D. Evaporation of stormwater
Correct Answer: B. Detachment and transport of soil particles
Rationale: Erosion involves the detachment and movement of soil by forces such
as rainfall, runoff, wind, or flowing water.
7. What is sedimentation?
A. The settling of transported particles
B. The removal of vegetation
C. The compaction of soil
D. The evaporation of water
Correct Answer: A. The settling of transported particles
Rationale: Sedimentation occurs when suspended or transported particles settle
out of moving water. Sediment-control BMPs often promote this process.
8. Which approach is generally most effective for reducing sediment pollution?
A. Prevent erosion at its source
B. Wait until sediment reaches a receiving water
C. Remove all downstream vegetation
D. Increase runoff velocity
Correct Answer: A. Prevent erosion at its source
, Rationale: Preventing soil from becoming detached reduces the amount of
sediment that must subsequently be captured. Source erosion control is therefore
a fundamental part of construction stormwater management.
9. What is the primary purpose of a Stormwater Pollution Prevention Plan
(SWPPP)?
A. Establish employee payroll procedures
B. Identify pollutant sources and specify measures to control stormwater
pollution
C. Replace all construction drawings
D. Determine the project's construction cost
Correct Answer: B. Identify pollutant sources and specify measures to control
stormwater pollution
Rationale: The SWPPP is the central planning document for identifying potential
pollutant sources and establishing appropriate stormwater control measures for
the construction site.
10. Which item would normally be relevant to a construction SWPPP?
A. Potential pollutant sources
B. Employee vacation preferences
C. Contractor advertising strategy
D. Building resale value
Correct Answer: A. Potential pollutant sources
Rationale: Identifying pollutant sources allows the project to select and implement
appropriate BMPs to prevent or minimize stormwater pollution.
11. What is a Best Management Practice (BMP)?
A. A construction accounting procedure
B. A practice or measure used to prevent or reduce pollution
