Virginia Erosion and Sediment Control Inspector Exam
(2025/2026) – Complete Questions and 100% Correct
Answer
What is the minimum storage capacity for a sediment trap? -
<<,Answer>>>134 cubic yards per acre of drainage area
AND
Only for a max of 3 drainage acres
When is a sediment basin used? - <<,Answer>>>For areas
more than 3 acres of drainage area
When is a temporary vehicular stream crossing required?
(MS-13) - <<,Answer>>>If a stream will be crossed more
than twice in 6 months
(back and forth is two)
How many ft of utility can be open at a time? (MS-16) -
<<,Answer>>>500 linear ft of a utility trench
How many days to remove temporary controls after final site
stabilization? (MS-18) - <<,Answer>>>30 days
, What is the minimum threshold for compliance for SWM?
(MS-19) - <<,Answer>>>1 acre (versus ESC is 10,000
square ft)
How is a slope percentage calculated? -
<<,Answer>>>rise/run
horizontal distance / vertical distance
closer number to 1 in a ratio= higher percentage=steeper slope
What type of stone should be used at a construction entrance?
(MS4, 17) - <<,Answer>>>#1 stone at 6'' depth
How much extra mesh is required at an inlet? -
<<,Answer>>>12 inches
How are you eligible to take the exam? -
<<,Answer>>>Take a DEQ training class OR DEQ 800 hour
work experience form
What is an agreement in lieu of a plan? - <<,Answer>>>a
contract between the plan approving authority and the
property owner that specifies conservation efforts during
construction of a single family residence
(2025/2026) – Complete Questions and 100% Correct
Answer
What is the minimum storage capacity for a sediment trap? -
<<,Answer>>>134 cubic yards per acre of drainage area
AND
Only for a max of 3 drainage acres
When is a sediment basin used? - <<,Answer>>>For areas
more than 3 acres of drainage area
When is a temporary vehicular stream crossing required?
(MS-13) - <<,Answer>>>If a stream will be crossed more
than twice in 6 months
(back and forth is two)
How many ft of utility can be open at a time? (MS-16) -
<<,Answer>>>500 linear ft of a utility trench
How many days to remove temporary controls after final site
stabilization? (MS-18) - <<,Answer>>>30 days
, What is the minimum threshold for compliance for SWM?
(MS-19) - <<,Answer>>>1 acre (versus ESC is 10,000
square ft)
How is a slope percentage calculated? -
<<,Answer>>>rise/run
horizontal distance / vertical distance
closer number to 1 in a ratio= higher percentage=steeper slope
What type of stone should be used at a construction entrance?
(MS4, 17) - <<,Answer>>>#1 stone at 6'' depth
How much extra mesh is required at an inlet? -
<<,Answer>>>12 inches
How are you eligible to take the exam? -
<<,Answer>>>Take a DEQ training class OR DEQ 800 hour
work experience form
What is an agreement in lieu of a plan? - <<,Answer>>>a
contract between the plan approving authority and the
property owner that specifies conservation efforts during
construction of a single family residence
