NPDES CLASS QUESTIONS AND
ANSWERS
Erosion - ans- sq sq
is the process by which the land surface is worn away by the action of wind, water, and grav
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
ity.
Sedimentation - ans-is the settling out of soil particles transported by water and wind. sq sq sq sq sq sq sq sq sq sq sq sq sq
Soil erosion can be classified as 2 types. What are they? - ans-Wind and Water.
sq sq sq sq sq sq sq sq sq sq sq sq sq sq
What are the two sources of Soil erosion. - ans-Natural and Manmade
sq sq sq sq sq sq sq sq sq sq sq
Water erosion can be classified as two type of erosions. What are they? - ans-
sq sq sq sq sq sq sq sq sq sq sq sq sq sq
Overland and Stream/Channel erosion. sq sq sq
Four process of overland erosion are? - ans-Splash, sheet, rill, and gully erosion.
sq sq sq sq sq sq sq sq sq sq sq sq
Four principle factors influencing soil erosion are? - ans-
sq sq sq sq sq sq sq sq
Soil characteristics, vegetative cover, topography, and climate.
sq sq sq sq sq sq
List three physical effect of erosion and sedimentation: - ans-
sq sq sq sq sq sq sq sq sq
Increased flooding reduced hydraulic capacity in rivers, and streams; increased maintenan
sq sq sq sq sq sq sq sq sq sq
ce of stormwater systems.; increased water treatments cost; and decreased recreational v
sq sq sq sq sq sq sq sq sq sq sq
alue.
List three biological effect of erosion and sedimentation: - ans-
sq sq sq sq sq sq sq sq sq
Reduced light for aquatic plants; clogs fish gills; impairs spawning; disrupts food chain; bla
sq sq sq sq sq sq sq sq sq sq sq sq sq
nkets bottom, suppresses aquatic life; and disrupts ecosystem.
sq sq sq sq sq sq sq
Planning the development to fit the terrain using the particular: - ans-
sq sq sq sq sq sq sq sq sq sq sq
Topography; soils; drainage patterns; natural vegetation of the site; and minimize the exten
sq sq sq sq sq sq sq sq sq sq sq sq
t of the area exposed at one time and the duration of exposure.
sq sq sq sq sq sq sq sq sq sq sq sq
Perimeter Control Practices - ans-What you apply to protect the disturbed area from off-
sq sq sq sq sq sq sq sq sq sq sq sq sq
site runoff and to protect off-site areas from sediment damage.
sq sq sq sq sq sq sq sq sq
Erosion Control Practices - ans-What you apply to prevent excessive on-site damage.
sq sq sq sq sq sq sq sq sq sq sq
Keep runoff velocities _____ and _______ runoff on the site - ans-Low and retain
sq sq sq sq sq sq sq sq sq sq sq sq sq
, When do you stabilize disturbed areas after final grading to prevent raindrop impacts from c
sq sq sq sq sq sq sq sq sq sq sq sq sq sq
ausing erosion. - ans-Immediately sq sq sq
Implement a thorough _____ and _____(inspection) program as required in the Constructi
sq sq sq sq sq sq sq sq sq sq sq
on Generic Permit (CGP). - ans-maintenance and follow up
sq sq sq sq sq sq sq sq
Soil particles smaller than 0.002 mm are classified as ____ and along with ____ are the two
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq s
soil types that cause the most erosion/turbidity problems in Florida and the World. - ans-
q sq sq sq sq sq sq sq sq sq sq sq sq sq sq
clay and muck sq sq
Soils in the Type A hydrologic group have ____ infiltration rates and ____ runoff potential e
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
ven when thoroughly wetted. - ans-high and low
sq sq sq sq sq sq sq
Soils in the Type D hydrologic group have very ____ infiltration rates and ____ runoff poten
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
tial when thoroughly wetted. - ans-low and high
sq sq sq sq sq sq sq
What is the rainfall erosion index? - ans-
sq sq sq sq sq sq sq
The rainfall erosion index is the only factor in the Universal Soil Loss Equation which is bey
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
ond the developer's control.
sq sq sq
What are the factors that can most easily be manipulated by the developer? - ans-
sq sq sq sq sq sq sq sq sq sq sq sq sq sq
length & gradient, and cover factor sq sq sq sq sq
The RUSLE is used on our construction sites to predict______ - ans-Soil Loss
sq sq sq sq sq sq sq sq sq sq sq sq
Stabilize disturbed lands immediately to save what? - ans-Money
sq sq sq sq sq sq sq sq
Who can you contact for a soil survey information?
sq sq sq sq sq sq sq sq
FDOT, FDEP, Water Management District, Mayor's Office, or NRCS. - ans-NRCS
sq sq sq sq sq sq sq sq sq sq sq
What are the five soil forming factors? - ans-
sq sq sq sq sq sq sq sq
Climate, topography, organisms, parent material, and time. sq sq sq sq sq sq
Waste disposal is a problem for the individual workers and some subcontractors, but it's no
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
big deal (True / False). - ans-False
sq sq sq sq sq sq
Truck washing should be done in a designated area, not near the perimeter controls. (True
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
/ False). - ans-True
sq sq sq
Storage of paints, solvents, cements, pesticides, acids, or other potentially polluting chemi
sq sq sq sq sq sq sq sq sq sq sq
cals is no big deal because they are only stored temporarily and get used up quickly. (True /
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
False). - ans-False
sq sq sq
The public needs to understand that dust is just a normal part of construction. (True /
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
False). - ans-False
sq sq sq
ANSWERS
Erosion - ans- sq sq
is the process by which the land surface is worn away by the action of wind, water, and grav
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
ity.
Sedimentation - ans-is the settling out of soil particles transported by water and wind. sq sq sq sq sq sq sq sq sq sq sq sq sq
Soil erosion can be classified as 2 types. What are they? - ans-Wind and Water.
sq sq sq sq sq sq sq sq sq sq sq sq sq sq
What are the two sources of Soil erosion. - ans-Natural and Manmade
sq sq sq sq sq sq sq sq sq sq sq
Water erosion can be classified as two type of erosions. What are they? - ans-
sq sq sq sq sq sq sq sq sq sq sq sq sq sq
Overland and Stream/Channel erosion. sq sq sq
Four process of overland erosion are? - ans-Splash, sheet, rill, and gully erosion.
sq sq sq sq sq sq sq sq sq sq sq sq
Four principle factors influencing soil erosion are? - ans-
sq sq sq sq sq sq sq sq
Soil characteristics, vegetative cover, topography, and climate.
sq sq sq sq sq sq
List three physical effect of erosion and sedimentation: - ans-
sq sq sq sq sq sq sq sq sq
Increased flooding reduced hydraulic capacity in rivers, and streams; increased maintenan
sq sq sq sq sq sq sq sq sq sq
ce of stormwater systems.; increased water treatments cost; and decreased recreational v
sq sq sq sq sq sq sq sq sq sq sq
alue.
List three biological effect of erosion and sedimentation: - ans-
sq sq sq sq sq sq sq sq sq
Reduced light for aquatic plants; clogs fish gills; impairs spawning; disrupts food chain; bla
sq sq sq sq sq sq sq sq sq sq sq sq sq
nkets bottom, suppresses aquatic life; and disrupts ecosystem.
sq sq sq sq sq sq sq
Planning the development to fit the terrain using the particular: - ans-
sq sq sq sq sq sq sq sq sq sq sq
Topography; soils; drainage patterns; natural vegetation of the site; and minimize the exten
sq sq sq sq sq sq sq sq sq sq sq sq
t of the area exposed at one time and the duration of exposure.
sq sq sq sq sq sq sq sq sq sq sq sq
Perimeter Control Practices - ans-What you apply to protect the disturbed area from off-
sq sq sq sq sq sq sq sq sq sq sq sq sq
site runoff and to protect off-site areas from sediment damage.
sq sq sq sq sq sq sq sq sq
Erosion Control Practices - ans-What you apply to prevent excessive on-site damage.
sq sq sq sq sq sq sq sq sq sq sq
Keep runoff velocities _____ and _______ runoff on the site - ans-Low and retain
sq sq sq sq sq sq sq sq sq sq sq sq sq
, When do you stabilize disturbed areas after final grading to prevent raindrop impacts from c
sq sq sq sq sq sq sq sq sq sq sq sq sq sq
ausing erosion. - ans-Immediately sq sq sq
Implement a thorough _____ and _____(inspection) program as required in the Constructi
sq sq sq sq sq sq sq sq sq sq sq
on Generic Permit (CGP). - ans-maintenance and follow up
sq sq sq sq sq sq sq sq
Soil particles smaller than 0.002 mm are classified as ____ and along with ____ are the two
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq s
soil types that cause the most erosion/turbidity problems in Florida and the World. - ans-
q sq sq sq sq sq sq sq sq sq sq sq sq sq sq
clay and muck sq sq
Soils in the Type A hydrologic group have ____ infiltration rates and ____ runoff potential e
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
ven when thoroughly wetted. - ans-high and low
sq sq sq sq sq sq sq
Soils in the Type D hydrologic group have very ____ infiltration rates and ____ runoff poten
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
tial when thoroughly wetted. - ans-low and high
sq sq sq sq sq sq sq
What is the rainfall erosion index? - ans-
sq sq sq sq sq sq sq
The rainfall erosion index is the only factor in the Universal Soil Loss Equation which is bey
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
ond the developer's control.
sq sq sq
What are the factors that can most easily be manipulated by the developer? - ans-
sq sq sq sq sq sq sq sq sq sq sq sq sq sq
length & gradient, and cover factor sq sq sq sq sq
The RUSLE is used on our construction sites to predict______ - ans-Soil Loss
sq sq sq sq sq sq sq sq sq sq sq sq
Stabilize disturbed lands immediately to save what? - ans-Money
sq sq sq sq sq sq sq sq
Who can you contact for a soil survey information?
sq sq sq sq sq sq sq sq
FDOT, FDEP, Water Management District, Mayor's Office, or NRCS. - ans-NRCS
sq sq sq sq sq sq sq sq sq sq sq
What are the five soil forming factors? - ans-
sq sq sq sq sq sq sq sq
Climate, topography, organisms, parent material, and time. sq sq sq sq sq sq
Waste disposal is a problem for the individual workers and some subcontractors, but it's no
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
big deal (True / False). - ans-False
sq sq sq sq sq sq
Truck washing should be done in a designated area, not near the perimeter controls. (True
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
/ False). - ans-True
sq sq sq
Storage of paints, solvents, cements, pesticides, acids, or other potentially polluting chemi
sq sq sq sq sq sq sq sq sq sq sq
cals is no big deal because they are only stored temporarily and get used up quickly. (True /
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
False). - ans-False
sq sq sq
The public needs to understand that dust is just a normal part of construction. (True /
sq sq sq sq sq sq sq sq sq sq sq sq sq sq sq
False). - ans-False
sq sq sq
