COLORADO CONSTRUCTION STORMWATER
INSPECTOR CERTIFICATION EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) Q&A
2026 |INSTANT DOWNLOAD PDF
1. What is the primary purpose of a Stormwater Pollution
Prevention Plan (SWPPP)?
A. Increase construction speed
B. Reduce project costs
C. Prevent polluted stormwater runoff
D. Replace OSHA requirements
Rationale: A SWPPP is designed to identify pollutants and
outline Best Management Practices (BMPs) to prevent
contamination of stormwater.
Correct Answer: C
2. Which federal regulation governs construction stormwater
discharges?
A. Clean Air Act
B. Safe Drinking Water Act
C. National Pollutant Discharge Elimination System (NPDES)
D. Resource Conservation and Recovery Act
Rationale: The NPDES program under the Clean Water Act
regulates stormwater discharges from construction sites.
Correct Answer: C
,3. What is a Best Management Practice (BMP)?
A. A cost estimate method
B. A structural or non-structural control to reduce pollution
C. A type of inspection form
D. A soil classification system
Rationale: BMPs are controls used to prevent or reduce
pollution in stormwater runoff.
Correct Answer: B
4. Which BMP is used primarily for sediment control?
A. Concrete washout
B. Silt fence
C. Fuel storage tank
D. Dust mask
Rationale: Silt fences trap sediment in runoff water.
Correct Answer: B
5. When should stormwater inspections typically be
conducted on active construction sites?
A. Once per year
B. After project completion
C. Weekly and after rain events
D. Only at project start
,Rationale: Regular inspections ensure BMPs remain effective,
especially after rainfall.
Correct Answer: C
6. What is erosion?
A. Movement of soil by wind or water
B. Chemical breakdown of rocks
C. Soil compaction
D. Water filtration
Rationale: Erosion is the physical movement of soil particles.
Correct Answer: A
7. Sediment pollution primarily affects which resource?
A. Air quality
B. Water quality
C. Noise levels
D. Structural steel
Rationale: Sediment in runoff degrades water quality and
aquatic habitats.
Correct Answer: B
8. Which document is required before construction activities
begin affecting stormwater?
A. OSHA report
, B. SWPPP
C. Fire safety plan
D. Payroll report
Rationale: A SWPPP must be developed and implemented
before disturbance begins.
Correct Answer: B
9. What is a common structural BMP for inlet protection?
A. Plastic sheeting
B. Gravel bags or filter fabric
C. Paint coating
D. Concrete slab
Rationale: Inlet protection prevents sediment from entering
storm drains.
Correct Answer: B
10. Which agency typically administers NPDES permits in
Colorado?
A. EPA only
B. Local police department
C. Colorado Department of Public Health and Environment
(CDPHE)
D. Department of Transportation only
Rationale: CDPHE oversees stormwater permitting in Colorado.
Correct Answer: C
INSPECTOR CERTIFICATION EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) Q&A
2026 |INSTANT DOWNLOAD PDF
1. What is the primary purpose of a Stormwater Pollution
Prevention Plan (SWPPP)?
A. Increase construction speed
B. Reduce project costs
C. Prevent polluted stormwater runoff
D. Replace OSHA requirements
Rationale: A SWPPP is designed to identify pollutants and
outline Best Management Practices (BMPs) to prevent
contamination of stormwater.
Correct Answer: C
2. Which federal regulation governs construction stormwater
discharges?
A. Clean Air Act
B. Safe Drinking Water Act
C. National Pollutant Discharge Elimination System (NPDES)
D. Resource Conservation and Recovery Act
Rationale: The NPDES program under the Clean Water Act
regulates stormwater discharges from construction sites.
Correct Answer: C
,3. What is a Best Management Practice (BMP)?
A. A cost estimate method
B. A structural or non-structural control to reduce pollution
C. A type of inspection form
D. A soil classification system
Rationale: BMPs are controls used to prevent or reduce
pollution in stormwater runoff.
Correct Answer: B
4. Which BMP is used primarily for sediment control?
A. Concrete washout
B. Silt fence
C. Fuel storage tank
D. Dust mask
Rationale: Silt fences trap sediment in runoff water.
Correct Answer: B
5. When should stormwater inspections typically be
conducted on active construction sites?
A. Once per year
B. After project completion
C. Weekly and after rain events
D. Only at project start
,Rationale: Regular inspections ensure BMPs remain effective,
especially after rainfall.
Correct Answer: C
6. What is erosion?
A. Movement of soil by wind or water
B. Chemical breakdown of rocks
C. Soil compaction
D. Water filtration
Rationale: Erosion is the physical movement of soil particles.
Correct Answer: A
7. Sediment pollution primarily affects which resource?
A. Air quality
B. Water quality
C. Noise levels
D. Structural steel
Rationale: Sediment in runoff degrades water quality and
aquatic habitats.
Correct Answer: B
8. Which document is required before construction activities
begin affecting stormwater?
A. OSHA report
, B. SWPPP
C. Fire safety plan
D. Payroll report
Rationale: A SWPPP must be developed and implemented
before disturbance begins.
Correct Answer: B
9. What is a common structural BMP for inlet protection?
A. Plastic sheeting
B. Gravel bags or filter fabric
C. Paint coating
D. Concrete slab
Rationale: Inlet protection prevents sediment from entering
storm drains.
Correct Answer: B
10. Which agency typically administers NPDES permits in
Colorado?
A. EPA only
B. Local police department
C. Colorado Department of Public Health and Environment
(CDPHE)
D. Department of Transportation only
Rationale: CDPHE oversees stormwater permitting in Colorado.
Correct Answer: C
