EROSION CONTROL CERTIFICATION AND
SEDIMENTATION EXAM QUESTIONS AND
100% VERIFIED ANSWERS!!
A CGP is required for projects that disturb _____ or more acres of land
1
The CGP permit requires inspections how often?
weekly and within 24 hours of the end of a storm 1/2 inch or greater
A storm water event with a ______ hour break in between is still considered one storm
water event
4
The CGP permit requires sediment basins for areas _____ or more
10 acres
Any BPM that collects sediment must be cleaned before it reaches _____ of it's capacity
50%
Never service construction equipment near a live stream, use storm water sewers instead
T/F
False
A temporary gravel construction entrance must extend the full width of the entrance. It
must be at least _____ ft long and _____ in thick. Aggregate should be _____ in stone or
FDOT No. _____ stone
50, 6, 2, 1
Prior to installing gravel entrance ______ should be placed on the ground and maintenance
should be performed when the voids are full of ______
geotextile, sediment
, Max drainage are for a silt fence under _____ flow conditions is ____ acre per 100 ft of
barrier length
sheet, 1/4
The average usable life of a silt fence is ____ months
6
For proper installation of silt fence a trench ____ by _____ must be excavated. This will
allow_______ of fabric to extend into the ground for back-filling and compaction
4, 4, 8
Max drainage area for an inlet protection is ______
1 acre
Purpose of a sediment trap is to _____ turbid water
detain
Max drainage area for a temporary sediment trap is _____
5 acres
Initial storage capacity for a sediment trap is _______ yards per acre or _______ ft^3/acre
134 cubic, 3600
Sediment basin is required for drainage areas more than ______
5 acres
In a sediment trap or basin baffles are used to ______
increase flow length
A diversion earthen dike shall be used to ________ into a temporary slope drain
direct stormwater
SEDIMENTATION EXAM QUESTIONS AND
100% VERIFIED ANSWERS!!
A CGP is required for projects that disturb _____ or more acres of land
1
The CGP permit requires inspections how often?
weekly and within 24 hours of the end of a storm 1/2 inch or greater
A storm water event with a ______ hour break in between is still considered one storm
water event
4
The CGP permit requires sediment basins for areas _____ or more
10 acres
Any BPM that collects sediment must be cleaned before it reaches _____ of it's capacity
50%
Never service construction equipment near a live stream, use storm water sewers instead
T/F
False
A temporary gravel construction entrance must extend the full width of the entrance. It
must be at least _____ ft long and _____ in thick. Aggregate should be _____ in stone or
FDOT No. _____ stone
50, 6, 2, 1
Prior to installing gravel entrance ______ should be placed on the ground and maintenance
should be performed when the voids are full of ______
geotextile, sediment
, Max drainage are for a silt fence under _____ flow conditions is ____ acre per 100 ft of
barrier length
sheet, 1/4
The average usable life of a silt fence is ____ months
6
For proper installation of silt fence a trench ____ by _____ must be excavated. This will
allow_______ of fabric to extend into the ground for back-filling and compaction
4, 4, 8
Max drainage area for an inlet protection is ______
1 acre
Purpose of a sediment trap is to _____ turbid water
detain
Max drainage area for a temporary sediment trap is _____
5 acres
Initial storage capacity for a sediment trap is _______ yards per acre or _______ ft^3/acre
134 cubic, 3600
Sediment basin is required for drainage areas more than ______
5 acres
In a sediment trap or basin baffles are used to ______
increase flow length
A diversion earthen dike shall be used to ________ into a temporary slope drain
direct stormwater
