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VA DEQ ESC Inspector Exam Practice Test –
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1. What is the primary purpose of erosion and sediment control
(ESC)?
To prevent sediment from leaving the construction site
The goal of ESC is to keep soil and pollutants from being
transported off-site into water bodies.
2. The Virginia Erosion and Sediment Control Law is contained in
which Code of Virginia title?
Title 62.1 – Waters of the State, Ports and Harbors
This title covers laws related to the conservation and management
of state waters, including ESC.
3. Which agency administers the Virginia ESC Program?
Virginia Department of Environmental Quality (DEQ)
DEQ oversees the statewide ESC Program to ensure compliance
and enforcement.
4. What is the maximum area of land disturbance that can occur
without an approved ESC plan in most Virginia localities?
10,000 square feet
Most local ordinances require a plan when disturbance exceeds
10,000 sq ft (2,500 sq ft in Chesapeake Bay Preservation Areas).
VA DEQ ESC Inspector Exam Practice
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5. A Responsible Land Disturber (RLD) must hold a valid certificate
issued by:
Virginia Department of Environmental Quality
Only DEQ can issue the RLD certificate required for land-disturbing
activities.
6. Which of the following is considered a land-disturbing activity
under Virginia ESC regulations?
Grading and excavation for building construction
ESC applies to activities that change the natural grade or expose
soil.
7. A single-family residence built by a property owner is generally:
Exempt from ESC plan requirements but must still use proper
controls
Owner-built single-family homes are often exempt, but must
prevent off-site sedimentation.
8. Sediment basins are designed to remove which size particles most
effectively?
Sand and silt-sized particles
Fine clays often remain suspended, while larger particles settle in
basins.
9. The most effective method to control erosion is to:
Stabilize the soil surface as soon as possible
Permanent or temporary stabilization prevents erosion at the
source.
10. When must temporary seeding be applied after final grading
or last disturbance?
Within 7 days
VA DEQ ESC Inspector Exam Practice
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Regulations require stabilization within 7 days of the last land-
disturbing activity.
11. Which of the following is a vegetative stabilization practice?
Mulching and seeding
These establish ground cover to prevent soil detachment.
12. Silt fence should be installed:
Along the contour and entrenched into the soil
Proper installation ensures sediment-laden runoff is filtered
effectively.
13. What is the minimum trench depth for installing silt fence?
6 inches
A 6-inch trench anchors the fence to prevent undercutting.
14. Check dams are primarily used to:
Slow down concentrated flow in ditches or swales
They reduce flow velocity, promoting sediment deposition.
15. Which of the following ESC practices is used at storm drain
inlets?
Inlet protection
Inlet protection traps sediment before it enters the storm drain
system.
16. A sediment trap is intended for drainage areas of:
Less than 3 acres
Sediment traps serve smaller drainage areas; larger ones require
sediment basins.
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VA DEQ ESC Inspector Exam Practice Test –
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary purpose of erosion and sediment control
(ESC)?
To prevent sediment from leaving the construction site
The goal of ESC is to keep soil and pollutants from being
transported off-site into water bodies.
2. The Virginia Erosion and Sediment Control Law is contained in
which Code of Virginia title?
Title 62.1 – Waters of the State, Ports and Harbors
This title covers laws related to the conservation and management
of state waters, including ESC.
3. Which agency administers the Virginia ESC Program?
Virginia Department of Environmental Quality (DEQ)
DEQ oversees the statewide ESC Program to ensure compliance
and enforcement.
4. What is the maximum area of land disturbance that can occur
without an approved ESC plan in most Virginia localities?
10,000 square feet
Most local ordinances require a plan when disturbance exceeds
10,000 sq ft (2,500 sq ft in Chesapeake Bay Preservation Areas).
VA DEQ ESC Inspector Exam Practice
2025
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– Questions
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(V
5. A Responsible Land Disturber (RLD) must hold a valid certificate
issued by:
Virginia Department of Environmental Quality
Only DEQ can issue the RLD certificate required for land-disturbing
activities.
6. Which of the following is considered a land-disturbing activity
under Virginia ESC regulations?
Grading and excavation for building construction
ESC applies to activities that change the natural grade or expose
soil.
7. A single-family residence built by a property owner is generally:
Exempt from ESC plan requirements but must still use proper
controls
Owner-built single-family homes are often exempt, but must
prevent off-site sedimentation.
8. Sediment basins are designed to remove which size particles most
effectively?
Sand and silt-sized particles
Fine clays often remain suspended, while larger particles settle in
basins.
9. The most effective method to control erosion is to:
Stabilize the soil surface as soon as possible
Permanent or temporary stabilization prevents erosion at the
source.
10. When must temporary seeding be applied after final grading
or last disturbance?
Within 7 days
VA DEQ ESC Inspector Exam Practice
2025
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,xam Practice
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2026
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(V
Regulations require stabilization within 7 days of the last land-
disturbing activity.
11. Which of the following is a vegetative stabilization practice?
Mulching and seeding
These establish ground cover to prevent soil detachment.
12. Silt fence should be installed:
Along the contour and entrenched into the soil
Proper installation ensures sediment-laden runoff is filtered
effectively.
13. What is the minimum trench depth for installing silt fence?
6 inches
A 6-inch trench anchors the fence to prevent undercutting.
14. Check dams are primarily used to:
Slow down concentrated flow in ditches or swales
They reduce flow velocity, promoting sediment deposition.
15. Which of the following ESC practices is used at storm drain
inlets?
Inlet protection
Inlet protection traps sediment before it enters the storm drain
system.
16. A sediment trap is intended for drainage areas of:
Less than 3 acres
Sediment traps serve smaller drainage areas; larger ones require
sediment basins.
VA DEQ ESC Inspector Exam Practice
2025
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– Questions
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And Correct Answers
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(Verified
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Page 3 of 16
