Virginia DEQ Erosion & Sediment Control (ESC) Exam
1 Prep | 300+ Most Tested QUESTIONs with Correct
Answers 2026/2027
QUESTION 1 What is the primary administrative entity responsible for
local implementation and enforcement of Virginia's Erosion and
Sediment Control law?
A. Local Virginia Erosion and Sediment Control Programs (VESCP) or
VESMP authorities
B. The federal Army Corps of Engineers
C. Local volunteer fire departments
D. The Department of Motor Vehicles
Correct Answer: A. Local Virginia Erosion and Sediment Control
Programs (VESCP) or VESMP authorities
Detailed Rationale: Local programs (VESCP/VESMP) are established by
counties, cities, or towns to review plans, issue permits, and enforce
local erosion and sediment control regulations under state oversight.
QUESTION 2 Within how many days must temporary stabilization
measures be applied to denuded areas that will remain dormant?
A. Within 7 days of cessation of land-disturbing activity
B. Within 30 days
C. Within 6 months
D. Only after the project is completed
,Correct Answer: A. Within 7 days of cessation of land-disturbing activity
Detailed Rationale: Virginia regulations dictate that temporary
stabilization must be initiated within 7 days of the temporary or final
cessation of land-disturbing activities on any portion of the site.
QUESTION 3 What is the maximum allowable drainage area for a
standard silt fence installation on a slope?
A. 10 acres
B. 1/4 acre of drainage area per 100 feet of silt fence
C. 50 acres total
D. Unlimited if wire-backed
Correct Answer: B. 1/4 acre of drainage area per 100 feet of silt fence
Detailed Rationale: Silt fences are designed exclusively for sheet flow
and cannot handle concentrated water; the drainage area is strictly
limited to 1/4 acre per 100 feet of fence.
QUESTION 4 What is the minimum required length for a standard
stabilized construction entrance in Virginia?
A. 10 feet
B. 25 feet
C. 50 feet
D. 500 feet
Correct Answer: C. 50 feet
,Detailed Rationale: Construction entrances must be at least 50 feet
long to ensure vehicle tires make multiple rotations over coarse stone,
shaking off accumulated mud before entering public roads.
QUESTION 5 What is the minimum required storage capacity for a
temporary sediment trap in Virginia?
A. 50 cubic yards per acre
B. 100 cubic yards per acre
C. 134 cubic yards per acre of total drainage area
D. 300 cubic yards per acre
Correct Answer: C. 134 cubic yards per acre of total drainage area
Detailed Rationale: State design standards require temporary sediment
traps to provide a minimum storage capacity of 134 cubic yards per acre
of total drainage area.
QUESTION 6 Who is required by Virginia law to be designated and
associated with an active land-disturbing permit to ensure compliance?
A. A certified Responsible Land Disturber (RLD)
B. A licensed real estate broker
C. A certified public accountant
D. A federal judge
Correct Answer: A. A certified Responsible Land Disturber (RLD)
Detailed Rationale: State regulations mandate that a certified RLD hold
responsibility for carrying out the approved ESC plan on-site throughout
the duration of land-disturbing activities.
, QUESTION 7 At what drainage area threshold must a temporary
sediment trap be upgraded to a temporary sediment basin?
A. 1 acre or greater
B. 3 acres or greater
C. 10 acres or greater
D. 100 acres or greater
Correct Answer: B. 3 acres or greater
Detailed Rationale: Temporary sediment traps are restricted to
drainage areas under 3 acres. When drainage areas reach 3 acres or
more, an engineered temporary sediment basin is required.
QUESTION 8 What is the required minimum uniform vegetative cover
percentage to achieve final site stabilization under Virginia standards?
A. 25% patchy weeds
B. 50% seasonal cover
C. 70% uniform, perennial vegetative cover (or equivalent stabilization)
D. 100% absolute bare ground
Correct Answer: C. 70% uniform, perennial vegetative cover (or
equivalent stabilization)
Detailed Rationale: Final site stabilization is legally achieved when a
uniform, mature perennial vegetative cover of at least 70% (or
approved non-vegetative armoring) is established.
QUESTION 9 What is the required frequency for routine self-inspections
on active construction sites?
1 Prep | 300+ Most Tested QUESTIONs with Correct
Answers 2026/2027
QUESTION 1 What is the primary administrative entity responsible for
local implementation and enforcement of Virginia's Erosion and
Sediment Control law?
A. Local Virginia Erosion and Sediment Control Programs (VESCP) or
VESMP authorities
B. The federal Army Corps of Engineers
C. Local volunteer fire departments
D. The Department of Motor Vehicles
Correct Answer: A. Local Virginia Erosion and Sediment Control
Programs (VESCP) or VESMP authorities
Detailed Rationale: Local programs (VESCP/VESMP) are established by
counties, cities, or towns to review plans, issue permits, and enforce
local erosion and sediment control regulations under state oversight.
QUESTION 2 Within how many days must temporary stabilization
measures be applied to denuded areas that will remain dormant?
A. Within 7 days of cessation of land-disturbing activity
B. Within 30 days
C. Within 6 months
D. Only after the project is completed
,Correct Answer: A. Within 7 days of cessation of land-disturbing activity
Detailed Rationale: Virginia regulations dictate that temporary
stabilization must be initiated within 7 days of the temporary or final
cessation of land-disturbing activities on any portion of the site.
QUESTION 3 What is the maximum allowable drainage area for a
standard silt fence installation on a slope?
A. 10 acres
B. 1/4 acre of drainage area per 100 feet of silt fence
C. 50 acres total
D. Unlimited if wire-backed
Correct Answer: B. 1/4 acre of drainage area per 100 feet of silt fence
Detailed Rationale: Silt fences are designed exclusively for sheet flow
and cannot handle concentrated water; the drainage area is strictly
limited to 1/4 acre per 100 feet of fence.
QUESTION 4 What is the minimum required length for a standard
stabilized construction entrance in Virginia?
A. 10 feet
B. 25 feet
C. 50 feet
D. 500 feet
Correct Answer: C. 50 feet
,Detailed Rationale: Construction entrances must be at least 50 feet
long to ensure vehicle tires make multiple rotations over coarse stone,
shaking off accumulated mud before entering public roads.
QUESTION 5 What is the minimum required storage capacity for a
temporary sediment trap in Virginia?
A. 50 cubic yards per acre
B. 100 cubic yards per acre
C. 134 cubic yards per acre of total drainage area
D. 300 cubic yards per acre
Correct Answer: C. 134 cubic yards per acre of total drainage area
Detailed Rationale: State design standards require temporary sediment
traps to provide a minimum storage capacity of 134 cubic yards per acre
of total drainage area.
QUESTION 6 Who is required by Virginia law to be designated and
associated with an active land-disturbing permit to ensure compliance?
A. A certified Responsible Land Disturber (RLD)
B. A licensed real estate broker
C. A certified public accountant
D. A federal judge
Correct Answer: A. A certified Responsible Land Disturber (RLD)
Detailed Rationale: State regulations mandate that a certified RLD hold
responsibility for carrying out the approved ESC plan on-site throughout
the duration of land-disturbing activities.
, QUESTION 7 At what drainage area threshold must a temporary
sediment trap be upgraded to a temporary sediment basin?
A. 1 acre or greater
B. 3 acres or greater
C. 10 acres or greater
D. 100 acres or greater
Correct Answer: B. 3 acres or greater
Detailed Rationale: Temporary sediment traps are restricted to
drainage areas under 3 acres. When drainage areas reach 3 acres or
more, an engineered temporary sediment basin is required.
QUESTION 8 What is the required minimum uniform vegetative cover
percentage to achieve final site stabilization under Virginia standards?
A. 25% patchy weeds
B. 50% seasonal cover
C. 70% uniform, perennial vegetative cover (or equivalent stabilization)
D. 100% absolute bare ground
Correct Answer: C. 70% uniform, perennial vegetative cover (or
equivalent stabilization)
Detailed Rationale: Final site stabilization is legally achieved when a
uniform, mature perennial vegetative cover of at least 70% (or
approved non-vegetative armoring) is established.
QUESTION 9 What is the required frequency for routine self-inspections
on active construction sites?
