1
VA DEQ ESC INSPECTOR EXAM ACTUAL
QUESTIONS AND CORRECT ANSWERS ALREADY
GRADED A+ GUARANTEED SUCCESS
Site at Final Grade
- stabilize in 7 days (recommended immediately)
- permanently or temporarily seed and mulch
- mulch/matting/straw
Minimum Standard 2
Stock Piles, Waste and Borrow Areas
Minimum Standard 8
Concentrated Runoff
shall not flow down cut or fill slopes unless contained within an adequate
temporary or permanent channel, flume or slope drain structure
outlets of these drains need outlet protection to prevent erosion from the
concentrated flow
size of pipe depends on drainage area
temporarily conduct concentrated stormwater runoff safely down the face of a cut
or fill slope without causing erosion on or below the slope
Minimum Standard 9
, 2
Water Seeps
whenever water seeps from a slope face, adequate drainage or other protection
shall be provided
cut and fill operations may expose shallow aquifers or groundwater tables from
which water may seep through the side of a slope
Minimum Standard 10
Inlet Protection
all storm sewer inlets that are made operable during construction shall be protected
so that sediment-laden water cannot enter the conveyance system without first
being filtered or otherwise treated to remove sediment
during construction, soil stock piles and borrow areas shall be stabilized or
protected with sediment trapping measures
mulch prevents erosion by protecting the surface from raindrop impact and silt
fence intercepts and detains from disturbed areas
Minimum Standard 3
Permanent Vegetation
permanent vegetation cover shall be established on denuded areas not otherwise
permanently stabilized (permanent vegetation shall not be considered established
until a ground cover is achieved that is uniform, mature enough to survive, and will
inhibit erosion there is no % associated with this)
, 3
reduce erosion and decrease sediment yield from disturbed area
this is the standard used to verify that a site is ready for release of bonds or surety
Minimum Standard 4
First-Step Measures
Sediment basins and traps, perimeter dikes, sediment barriers and other measures
intended to trap sediment shall be constructed as a first step in any land-disturbing
activity and shall be made functional before upslope land disturbance takes place
a certain amount of initial land disturbance may be required to provide access for
equipment to install the perimeter controls, but site clearing and grading should be
kept to a minimum until the perimeter controls are in place
intercepts and detains small amounts of sediment from disturbed areas during
construction operation to prevent sediment from leaving the site and decrease
velocity of sheet flows and low-to-moderate level channel flow
Perimeter Controls
assures that sediment does not leave the perimeter of the land-disturbing area once
site clearing, grading, and construction commences
Examples: silt fences, sediment traps, sediment basins, construction entrance,
temporary diversions, diversions
Minimum Standard 5
Earthen Structure Stabilization
stabilization measures shall be applied to earthen structures such as dams, dikes,
and diversions immediately after installation
, 4
reduce erosion and sedimentation and reduce damage from sediment and runoff to
downstream or off-site areas
Minimum Standard 6
Traps and Basins
sediment traps and basins shall be designed and constructed based upon the total
drainage area (not just disturbed area) to be served by the trap or basin
Sediment Traps
minimum storage capacity shall be 134 cubic yards per acre of drainage area and
shall only control drainage areas less than 3 acres
stone outlet = trap
Sediment Basins
surface runoff from disturbed areas that is comprised of flow from drainage areas
greater than or equal to 3 acres shall be controlled by a basin; minimum storage
capacity of a sediment basin shall be 134 cubic yards per acre of drainage area; the
outfall system shall, at a minimum, maintain the structural integrity of the basin
during a 25-year storm of 24-hour duration; runoff coefficients used in runoff
calculations shall correspond to a bare earth condition or those conditions expected
to exist while the sediment basin is utilized.
Sediment Trapping Devises
1. place near the lowest drainage points of a project
2. install as a first-step measure [MS-4]
3. stabilize immediately [MS-5]
VA DEQ ESC INSPECTOR EXAM ACTUAL
QUESTIONS AND CORRECT ANSWERS ALREADY
GRADED A+ GUARANTEED SUCCESS
Site at Final Grade
- stabilize in 7 days (recommended immediately)
- permanently or temporarily seed and mulch
- mulch/matting/straw
Minimum Standard 2
Stock Piles, Waste and Borrow Areas
Minimum Standard 8
Concentrated Runoff
shall not flow down cut or fill slopes unless contained within an adequate
temporary or permanent channel, flume or slope drain structure
outlets of these drains need outlet protection to prevent erosion from the
concentrated flow
size of pipe depends on drainage area
temporarily conduct concentrated stormwater runoff safely down the face of a cut
or fill slope without causing erosion on or below the slope
Minimum Standard 9
, 2
Water Seeps
whenever water seeps from a slope face, adequate drainage or other protection
shall be provided
cut and fill operations may expose shallow aquifers or groundwater tables from
which water may seep through the side of a slope
Minimum Standard 10
Inlet Protection
all storm sewer inlets that are made operable during construction shall be protected
so that sediment-laden water cannot enter the conveyance system without first
being filtered or otherwise treated to remove sediment
during construction, soil stock piles and borrow areas shall be stabilized or
protected with sediment trapping measures
mulch prevents erosion by protecting the surface from raindrop impact and silt
fence intercepts and detains from disturbed areas
Minimum Standard 3
Permanent Vegetation
permanent vegetation cover shall be established on denuded areas not otherwise
permanently stabilized (permanent vegetation shall not be considered established
until a ground cover is achieved that is uniform, mature enough to survive, and will
inhibit erosion there is no % associated with this)
, 3
reduce erosion and decrease sediment yield from disturbed area
this is the standard used to verify that a site is ready for release of bonds or surety
Minimum Standard 4
First-Step Measures
Sediment basins and traps, perimeter dikes, sediment barriers and other measures
intended to trap sediment shall be constructed as a first step in any land-disturbing
activity and shall be made functional before upslope land disturbance takes place
a certain amount of initial land disturbance may be required to provide access for
equipment to install the perimeter controls, but site clearing and grading should be
kept to a minimum until the perimeter controls are in place
intercepts and detains small amounts of sediment from disturbed areas during
construction operation to prevent sediment from leaving the site and decrease
velocity of sheet flows and low-to-moderate level channel flow
Perimeter Controls
assures that sediment does not leave the perimeter of the land-disturbing area once
site clearing, grading, and construction commences
Examples: silt fences, sediment traps, sediment basins, construction entrance,
temporary diversions, diversions
Minimum Standard 5
Earthen Structure Stabilization
stabilization measures shall be applied to earthen structures such as dams, dikes,
and diversions immediately after installation
, 4
reduce erosion and sedimentation and reduce damage from sediment and runoff to
downstream or off-site areas
Minimum Standard 6
Traps and Basins
sediment traps and basins shall be designed and constructed based upon the total
drainage area (not just disturbed area) to be served by the trap or basin
Sediment Traps
minimum storage capacity shall be 134 cubic yards per acre of drainage area and
shall only control drainage areas less than 3 acres
stone outlet = trap
Sediment Basins
surface runoff from disturbed areas that is comprised of flow from drainage areas
greater than or equal to 3 acres shall be controlled by a basin; minimum storage
capacity of a sediment basin shall be 134 cubic yards per acre of drainage area; the
outfall system shall, at a minimum, maintain the structural integrity of the basin
during a 25-year storm of 24-hour duration; runoff coefficients used in runoff
calculations shall correspond to a bare earth condition or those conditions expected
to exist while the sediment basin is utilized.
Sediment Trapping Devises
1. place near the lowest drainage points of a project
2. install as a first-step measure [MS-4]
3. stabilize immediately [MS-5]
