Minnesota Stormwater Pollution
Prevention Plan (SWPPP) Designer
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
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1. What is the primary purpose of a Stormwater Pollution Prevention
Plan (SWPPP)?
A. To increase site drainage speed
B. To reduce construction costs
C. To prevent pollutants from entering stormwater runoff
D. To eliminate all rainfall on a site
Rationale: A SWPPP identifies potential pollutant sources and establishes
controls to prevent contamination of stormwater runoff.
, 2. Which federal law provides the foundation for stormwater permitting
requirements?
A. Safe Drinking Water Act
B. Resource Conservation and Recovery Act
C. National Environmental Policy Act
D. Clean Water Act
Rationale: The Clean Water Act authorizes the National Pollutant
Discharge Elimination System (NPDES) program, including stormwater
permits.
3. What does NPDES stand for?
A. National Pollution Detection Environmental System
B. National Permit Drainage Evaluation Standard
C. National Pollutant Discharge Elimination System
D. Natural Pollution Discharge Elimination Standard
Rationale: NPDES is the federal permitting system regulating pollutant
discharges into waters of the United States.
4. Construction activities disturbing how many acres generally require
NPDES permit coverage?
A. 10 acres or more
B. 5 acres or more
,C. 1 acre or more
D. 20 acres or more
Rationale: Construction activities disturbing one acre or more typically
require permit coverage.
5. Which pollutant is most commonly associated with construction site
runoff?
A. Nitrogen gas
B. Carbon monoxide
C. Sediment
D. Ozone
Rationale: Sediment is the primary pollutant generated from soil
disturbance during construction.
6. What is the primary objective of erosion control?
A. Increase runoff volume
B. Remove storm drains
C. Prevent soil from being detached and transported
D. Accelerate grading activities
Rationale: Erosion control practices keep soil in place and reduce sediment
generation.
, 7. Sediment control measures are intended to:
A. Prevent rainfall
B. Eliminate infiltration
C. Reduce evaporation
D. Capture soil particles after erosion occurs
Rationale: Sediment controls trap sediment before it leaves the
construction site.
8. Which practice is considered an erosion control measure?
A. Sediment basin
B. Check dam
C. Temporary seeding
D. Inlet protection
Rationale: Temporary seeding stabilizes exposed soil and prevents erosion.
9. Which practice is considered a sediment control measure?
A. Mulching
B. Soil stabilization
C. Permanent seeding
D. Sediment basin
Rationale: Sediment basins capture and settle sediment-laden runoff.
Prevention Plan (SWPPP) Designer
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of a Stormwater Pollution Prevention
Plan (SWPPP)?
A. To increase site drainage speed
B. To reduce construction costs
C. To prevent pollutants from entering stormwater runoff
D. To eliminate all rainfall on a site
Rationale: A SWPPP identifies potential pollutant sources and establishes
controls to prevent contamination of stormwater runoff.
, 2. Which federal law provides the foundation for stormwater permitting
requirements?
A. Safe Drinking Water Act
B. Resource Conservation and Recovery Act
C. National Environmental Policy Act
D. Clean Water Act
Rationale: The Clean Water Act authorizes the National Pollutant
Discharge Elimination System (NPDES) program, including stormwater
permits.
3. What does NPDES stand for?
A. National Pollution Detection Environmental System
B. National Permit Drainage Evaluation Standard
C. National Pollutant Discharge Elimination System
D. Natural Pollution Discharge Elimination Standard
Rationale: NPDES is the federal permitting system regulating pollutant
discharges into waters of the United States.
4. Construction activities disturbing how many acres generally require
NPDES permit coverage?
A. 10 acres or more
B. 5 acres or more
,C. 1 acre or more
D. 20 acres or more
Rationale: Construction activities disturbing one acre or more typically
require permit coverage.
5. Which pollutant is most commonly associated with construction site
runoff?
A. Nitrogen gas
B. Carbon monoxide
C. Sediment
D. Ozone
Rationale: Sediment is the primary pollutant generated from soil
disturbance during construction.
6. What is the primary objective of erosion control?
A. Increase runoff volume
B. Remove storm drains
C. Prevent soil from being detached and transported
D. Accelerate grading activities
Rationale: Erosion control practices keep soil in place and reduce sediment
generation.
, 7. Sediment control measures are intended to:
A. Prevent rainfall
B. Eliminate infiltration
C. Reduce evaporation
D. Capture soil particles after erosion occurs
Rationale: Sediment controls trap sediment before it leaves the
construction site.
8. Which practice is considered an erosion control measure?
A. Sediment basin
B. Check dam
C. Temporary seeding
D. Inlet protection
Rationale: Temporary seeding stabilizes exposed soil and prevents erosion.
9. Which practice is considered a sediment control measure?
A. Mulching
B. Soil stabilization
C. Permanent seeding
D. Sediment basin
Rationale: Sediment basins capture and settle sediment-laden runoff.
