Erosion and Sediment Control Correctly Solved Exam Questions
And An- swers!!
1. Minimum Stabilization
Stan-
dard 1 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
2. Site NOT at
Final Grade -stabilize in 14 days
-temporarily seed
-mulch
-permanently stabilize if dormant > 1 year
3. Site at
Final -stabilize in 7 days (recommended immediately)
Grade -permanently or temporarily seed and mulch
-mulch/matting/straw
4. Minimum Stock Piles, Waste and Borrow Areas
Stan-
dard 2 during construction, soil stock piles and borrow areas shall be stabilized
or pro- tected with sediment trapping measures
mulch prevents erosion by protecting the surface from raindrop impact
and silt fence intercepts and detains from disturbed areas
Permanent Vegetation
5. Minimum
Stan-
permanent vegetation cover shall be established on denuded areas not
dard 3
otherwise permanently stabilized (permanent vegetation shall not be
considered established until a ground cover is achieved that is uniform,
1/
44
, Erosion and Sediment Control Correctly Solved Exam Questions
And An- swers!!
mature enough to survive,
and will inhibit erosion
*there is no % associated
with this*)
2/
44
, Erosion and Sediment Control Correctly Solved Exam Questions
And An- swers!!
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
6. Minimum surety First-Step Measures
Stan-
dard 4 Sediment basins and traps, perimeter dikes, sediment barriers and
other mea- sures intended to trap sediment shall be constructed as a first
step in any land-dis- turbing 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
7. Perimeter channel flow
Con- trols
assures that sediment does not leave the perimeter of the land-
disturbing area once site clearing, grading, and construction
commences
8. Minimum Examples: silt fences, sediment traps, sediment basins, construction
Stan- entrance, temporary diversions, diversions
dard 5
Earthen Structure Stabilization
stabilization measures shall be applied to earthen structures such as
dams, dikes, and diversions immediately after installation
3/
44
, Erosion and Sediment Control Correctly Solved Exam Questions
And An- swers!!
reduce erosion and
sedimentation and
reduce damage from
sediment and runott to
downstream or ott-site
areas
4/
44
And An- swers!!
1. Minimum Stabilization
Stan-
dard 1 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
2. Site NOT at
Final Grade -stabilize in 14 days
-temporarily seed
-mulch
-permanently stabilize if dormant > 1 year
3. Site at
Final -stabilize in 7 days (recommended immediately)
Grade -permanently or temporarily seed and mulch
-mulch/matting/straw
4. Minimum Stock Piles, Waste and Borrow Areas
Stan-
dard 2 during construction, soil stock piles and borrow areas shall be stabilized
or pro- tected with sediment trapping measures
mulch prevents erosion by protecting the surface from raindrop impact
and silt fence intercepts and detains from disturbed areas
Permanent Vegetation
5. Minimum
Stan-
permanent vegetation cover shall be established on denuded areas not
dard 3
otherwise permanently stabilized (permanent vegetation shall not be
considered established until a ground cover is achieved that is uniform,
1/
44
, Erosion and Sediment Control Correctly Solved Exam Questions
And An- swers!!
mature enough to survive,
and will inhibit erosion
*there is no % associated
with this*)
2/
44
, Erosion and Sediment Control Correctly Solved Exam Questions
And An- swers!!
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
6. Minimum surety First-Step Measures
Stan-
dard 4 Sediment basins and traps, perimeter dikes, sediment barriers and
other mea- sures intended to trap sediment shall be constructed as a first
step in any land-dis- turbing 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
7. Perimeter channel flow
Con- trols
assures that sediment does not leave the perimeter of the land-
disturbing area once site clearing, grading, and construction
commences
8. Minimum Examples: silt fences, sediment traps, sediment basins, construction
Stan- entrance, temporary diversions, diversions
dard 5
Earthen Structure Stabilization
stabilization measures shall be applied to earthen structures such as
dams, dikes, and diversions immediately after installation
3/
44
, Erosion and Sediment Control Correctly Solved Exam Questions
And An- swers!!
reduce erosion and
sedimentation and
reduce damage from
sediment and runott to
downstream or ott-site
areas
4/
44
