VA DEQ ESC INSPECTOR EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS
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Terms in this set (104)
VESCP Virginia Erosion and Sediment Control Program
- Administered by counties/cities (must), towns
(may)
- MUST BE APPROVED
Minimum Standard 1 Stabilization
permanent or temporary soil stabilization shall be
applied to denuded areas within seven days after
final grade is reached on any portion of the site;
temporary soil stabilization shall be applied within
seven days to denuded areas that may not be at
final grade but will remain dormant for longer than
14 days; permanent stabilization shall be applied to
areas that are to be left dormant for more than one
year
,Site NOT at Final Grade - stabilize in 14 days
- temporarily seed
- mulch
- permanently stabilize if dormant > 1 year
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
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)
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
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]
4. must include outlet protection for basins [MS-11]
ACTUAL QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (104)
VESCP Virginia Erosion and Sediment Control Program
- Administered by counties/cities (must), towns
(may)
- MUST BE APPROVED
Minimum Standard 1 Stabilization
permanent or temporary soil stabilization shall be
applied to denuded areas within seven days after
final grade is reached on any portion of the site;
temporary soil stabilization shall be applied within
seven days to denuded areas that may not be at
final grade but will remain dormant for longer than
14 days; permanent stabilization shall be applied to
areas that are to be left dormant for more than one
year
,Site NOT at Final Grade - stabilize in 14 days
- temporarily seed
- mulch
- permanently stabilize if dormant > 1 year
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
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)
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
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]
4. must include outlet protection for basins [MS-11]
