SWPPP FL STORMWATER 101 2026 QUESTIONS
WITH SOLUTIONS GRADED A+
◉ Sedimentation is: Answer: The settling out of particles
transported by water and wind
◉ Soil erosion can be classified as either: Answer: Wind erosion or
Water erosion
◉ Water erosion can be classified as either: Answer: Overland
erosion or stream and channel erosion
◉ Four processes of overland erosion are: Answer: Splash or rain
drop erosion, sheet erosion, rill erosion,and gully erosion
◉ Four principle factors influencing soil erosion are: Answer: Soil
characteristics, vegetative cover, topography, and climate
◉ List three physical effects of erosion and sedimentation: Answer:
Increased flooding reduced hydraulic capacity in rivers, streams,
channels, reservoirs; Increased maintenance of stormwater systems;
increased water treatment costs and decreased recreational value.
,◉ List three biological effects of erosion and sedimentation Answer:
Reduced light for aquatic plants; clogs fish gills; impairs spawning;
disrupts food chain; blankets bottom, suppresses aquatic life and
disrupts ecosystem
◉ Planning the development to fit the terrain using the particular:
Answer: Topography, soils, drainage patterns, natural vegetation of
the site and minimize the extent of the area exposed at one time and
the duration of exposure
◉ Apply ____________ practices to protect the disturbed area from off
site runoff and to protect off site ares from sediment damage
Answer: Perimeter control
◉ Apply __________ practices to prevent excessive on site damage
Answer: Erosion control
◉ Keep runoff velocities ___________ and __________ runoff on the site
Answer: Low and retain
◉ It is very important to stabilize disturbed areas _______________ after
final grading to prevent raindrop impacts from causing erosion
Answer: Immediately
, ◉ Implement a thorough ______________ and ________________
(inspection) program as required in the Construction Generic Permit
(CGP) Answer: Maintenance and follow up
◉ Soil particles smaller than 0.002mm are classified as ___________
and ____________ are the two soil types that cause the most
erosion/turbidity problems in Florida and the world Answer: Clay
and Muck
◉ Soils in the type A hydrologic group have ___________ infiltration
rates and __________ runoff potential even when thoroughly wetted
Answer: high and low
◉ Soils in the type D hydrologic group have very __________
infiltration rates and ________ runoff potential even when thoroughly
wetted Answer: Low and high
◉ The ________________ is the only factor in the Universal Soil Loss
Equation which is beyond the developers control Answer: Rainfall
index
◉ Slope _____________ and ____________ are the factors most easily
manipulated by the developer Answer: Length, gradient and cover
factor
WITH SOLUTIONS GRADED A+
◉ Sedimentation is: Answer: The settling out of particles
transported by water and wind
◉ Soil erosion can be classified as either: Answer: Wind erosion or
Water erosion
◉ Water erosion can be classified as either: Answer: Overland
erosion or stream and channel erosion
◉ Four processes of overland erosion are: Answer: Splash or rain
drop erosion, sheet erosion, rill erosion,and gully erosion
◉ Four principle factors influencing soil erosion are: Answer: Soil
characteristics, vegetative cover, topography, and climate
◉ List three physical effects of erosion and sedimentation: Answer:
Increased flooding reduced hydraulic capacity in rivers, streams,
channels, reservoirs; Increased maintenance of stormwater systems;
increased water treatment costs and decreased recreational value.
,◉ List three biological effects of erosion and sedimentation Answer:
Reduced light for aquatic plants; clogs fish gills; impairs spawning;
disrupts food chain; blankets bottom, suppresses aquatic life and
disrupts ecosystem
◉ Planning the development to fit the terrain using the particular:
Answer: Topography, soils, drainage patterns, natural vegetation of
the site and minimize the extent of the area exposed at one time and
the duration of exposure
◉ Apply ____________ practices to protect the disturbed area from off
site runoff and to protect off site ares from sediment damage
Answer: Perimeter control
◉ Apply __________ practices to prevent excessive on site damage
Answer: Erosion control
◉ Keep runoff velocities ___________ and __________ runoff on the site
Answer: Low and retain
◉ It is very important to stabilize disturbed areas _______________ after
final grading to prevent raindrop impacts from causing erosion
Answer: Immediately
, ◉ Implement a thorough ______________ and ________________
(inspection) program as required in the Construction Generic Permit
(CGP) Answer: Maintenance and follow up
◉ Soil particles smaller than 0.002mm are classified as ___________
and ____________ are the two soil types that cause the most
erosion/turbidity problems in Florida and the world Answer: Clay
and Muck
◉ Soils in the type A hydrologic group have ___________ infiltration
rates and __________ runoff potential even when thoroughly wetted
Answer: high and low
◉ Soils in the type D hydrologic group have very __________
infiltration rates and ________ runoff potential even when thoroughly
wetted Answer: Low and high
◉ The ________________ is the only factor in the Universal Soil Loss
Equation which is beyond the developers control Answer: Rainfall
index
◉ Slope _____________ and ____________ are the factors most easily
manipulated by the developer Answer: Length, gradient and cover
factor
