Qualified SWPPP Developer (QSD) Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1.Under the California Construction General Permit (CGP), the primary
purpose of a Storm Water Pollution Prevention Plan (SWPPP) is to:
A. Increase project profitability through efficient material management.
B. Eliminate all stormwater runoff from a construction site.
C. Document erosion, sediment, and pollution control measures that will
minimize pollutant discharges from the construction site.
D. Replace all local erosion control requirements with state requirements.
Correct Answer: C
Rationale: A SWPPP is a comprehensive site-specific document that
identifies potential pollutant sources and specifies Best Management
Practices (BMPs) to prevent or minimize pollutants in stormwater
discharges. It is not intended to eliminate runoff entirely or replace local
requirements.
2. Which agency administers the California Construction General Permit?
A. California Department of Water Resources
B. California Air Resources Board
C. California State Water Resources Control Board
D. California Department of Fish and Wildlife
,Correct Answer: C
Rationale: The California State Water Resources Control Board (SWRCB)
administers the Construction General Permit through the National
Pollutant Discharge Elimination System (NPDES) program, with Regional
Water Quality Control Boards providing regional oversight.
3. A construction project must generally obtain coverage under the
Construction General Permit when it:
A. Disturbs one acre or more of soil.
B. Employs more than 25 workers.
C. Exceeds a construction value of $1 million.
D. Is located within city limits.
Correct Answer: A
Rationale: The CGP generally applies to projects disturbing one acre or
more, or smaller projects that are part of a larger common plan of
development disturbing one acre or more.
4. Which document determines the Risk Level assigned to a construction
project under the California CGP?
A. Building permit.
B. Rainfall Erosivity Waiver.
C. Risk Determination Worksheet based on sediment and receiving water
risk.
D. Local grading permit.
Correct Answer: C
Rationale: Risk Levels are determined using a standardized risk assessment
considering sediment risk and receiving water risk, resulting in Risk Levels
1, 2, or 3.
, 5. Which of the following is considered a temporary erosion control
BMP?
A. Hydroseeding.
B. Fiber rolls installed along contours.
C. Permanent asphalt paving.
D. Concrete retaining wall.
Correct Answer: B
Rationale: Fiber rolls are temporary erosion and sediment control BMPs
that reduce runoff velocity and capture sediment until permanent
stabilization is achieved.
6. The primary objective of sediment control BMPs is to:
A. Prevent rainfall.
B. Capture sediment after erosion occurs.
C. Increase runoff velocity.
D. Eliminate inspections.
Correct Answer: B
Rationale: Sediment control BMPs intercept and retain eroded soil before it
leaves the site, complementing erosion control measures that prevent soil
detachment.
7. Which BMP is primarily designed to prevent soil detachment?
A. Sediment basin.
B. Gravel bag berm.
C. Soil stabilization.
D. Storm drain inlet protection.
Correct Answer: C
, Rationale: Soil stabilization protects exposed soil from rainfall and wind,
preventing erosion before sediment is generated.
8. Which of the following is an example of a non-stormwater discharge
that may require management under a SWPPP?
A. Rainfall runoff.
B. Irrigation runoff.
C. Natural groundwater recharge.
D. Ocean tides.
Correct Answer: B
Rationale: Unauthorized non-stormwater discharges such as irrigation
runoff, vehicle wash water, and concrete wash water must be controlled to
prevent pollution.
9. The Legally Responsible Person (LRP) is responsible for:
A. Preparing grading plans only.
B. Obtaining permit coverage and ensuring permit compliance.
C. Performing laboratory testing.
D. Issuing building permits.
Correct Answer: B
Rationale: The LRP is ultimately responsible for compliance with the
Construction General Permit and implementation of the SWPPP.
10. A Qualified SWPPP Developer (QSD) is primarily responsible for:
A. Performing daily grading operations.
B. Developing and revising the SWPPP.
C. Approving building permits.
D. Conducting environmental impact reports.
Correct Answer: B
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1.Under the California Construction General Permit (CGP), the primary
purpose of a Storm Water Pollution Prevention Plan (SWPPP) is to:
A. Increase project profitability through efficient material management.
B. Eliminate all stormwater runoff from a construction site.
C. Document erosion, sediment, and pollution control measures that will
minimize pollutant discharges from the construction site.
D. Replace all local erosion control requirements with state requirements.
Correct Answer: C
Rationale: A SWPPP is a comprehensive site-specific document that
identifies potential pollutant sources and specifies Best Management
Practices (BMPs) to prevent or minimize pollutants in stormwater
discharges. It is not intended to eliminate runoff entirely or replace local
requirements.
2. Which agency administers the California Construction General Permit?
A. California Department of Water Resources
B. California Air Resources Board
C. California State Water Resources Control Board
D. California Department of Fish and Wildlife
,Correct Answer: C
Rationale: The California State Water Resources Control Board (SWRCB)
administers the Construction General Permit through the National
Pollutant Discharge Elimination System (NPDES) program, with Regional
Water Quality Control Boards providing regional oversight.
3. A construction project must generally obtain coverage under the
Construction General Permit when it:
A. Disturbs one acre or more of soil.
B. Employs more than 25 workers.
C. Exceeds a construction value of $1 million.
D. Is located within city limits.
Correct Answer: A
Rationale: The CGP generally applies to projects disturbing one acre or
more, or smaller projects that are part of a larger common plan of
development disturbing one acre or more.
4. Which document determines the Risk Level assigned to a construction
project under the California CGP?
A. Building permit.
B. Rainfall Erosivity Waiver.
C. Risk Determination Worksheet based on sediment and receiving water
risk.
D. Local grading permit.
Correct Answer: C
Rationale: Risk Levels are determined using a standardized risk assessment
considering sediment risk and receiving water risk, resulting in Risk Levels
1, 2, or 3.
, 5. Which of the following is considered a temporary erosion control
BMP?
A. Hydroseeding.
B. Fiber rolls installed along contours.
C. Permanent asphalt paving.
D. Concrete retaining wall.
Correct Answer: B
Rationale: Fiber rolls are temporary erosion and sediment control BMPs
that reduce runoff velocity and capture sediment until permanent
stabilization is achieved.
6. The primary objective of sediment control BMPs is to:
A. Prevent rainfall.
B. Capture sediment after erosion occurs.
C. Increase runoff velocity.
D. Eliminate inspections.
Correct Answer: B
Rationale: Sediment control BMPs intercept and retain eroded soil before it
leaves the site, complementing erosion control measures that prevent soil
detachment.
7. Which BMP is primarily designed to prevent soil detachment?
A. Sediment basin.
B. Gravel bag berm.
C. Soil stabilization.
D. Storm drain inlet protection.
Correct Answer: C
, Rationale: Soil stabilization protects exposed soil from rainfall and wind,
preventing erosion before sediment is generated.
8. Which of the following is an example of a non-stormwater discharge
that may require management under a SWPPP?
A. Rainfall runoff.
B. Irrigation runoff.
C. Natural groundwater recharge.
D. Ocean tides.
Correct Answer: B
Rationale: Unauthorized non-stormwater discharges such as irrigation
runoff, vehicle wash water, and concrete wash water must be controlled to
prevent pollution.
9. The Legally Responsible Person (LRP) is responsible for:
A. Preparing grading plans only.
B. Obtaining permit coverage and ensuring permit compliance.
C. Performing laboratory testing.
D. Issuing building permits.
Correct Answer: B
Rationale: The LRP is ultimately responsible for compliance with the
Construction General Permit and implementation of the SWPPP.
10. A Qualified SWPPP Developer (QSD) is primarily responsible for:
A. Performing daily grading operations.
B. Developing and revising the SWPPP.
C. Approving building permits.
D. Conducting environmental impact reports.
Correct Answer: B
