10/15/25, 1:57 PM CESSWI Flashcards | Quizlet
cda
C
CESSWI EXAMINATION QUESTIONS WITH VERIFIED
A+ ANSWERS LATEST UPDATE//2025-2026 ED
Terms in this set (298)
process in which, by the actions of wind and/or water, soil
Erosion
particles detached and transported
Sediment eroded material suspended in wind or water
Sedimentation deposition of eroded material
splas
h
Types of Erosion sheet
rill
gully
chann
el
Splash erosion raindrop impact energy is enough to dislodge surface sediments
caused by rain splash detaching soil particles lifting them up
sheet erosion
and removing them by shallow "sheets" of water flowing
down the sloped soil surface
Rill Erosion as flow concentrates, small channels begin to form in the soil surface
Formed when runoff cuts rills deeper and wider or when
Gully Erosion
flows from several rills come together and form a large
channels
Channel Erosion may become unstable due to increased flows or changes in upstream
sediment load
Natural erosion generally considered due to the influences of climate on the surface of
the earth
Accelerated erosion natural erosion plus human activities
Unrestricted
What problems can accelerated development removal of
erosion cause? surface cover increased
imperviousness
poor stewardship
https://quizlet.com/217277423/cesswi-flash-cards/ 1/
13
, 10/15/25, 1:57 PM CESSWI Flashcards | Quizlet
problems for down slope property
owners nuisance problems on
Problems associated with
streets
construction related erosion
clog streams and storm
drains increased turbidity
downstream cover sensitive
habitat with sediment
destruction of spawning areas, food
sources, habitat direct toxicity to wildlife
lake degradation
Identify instream damages of sediment
filling of navigation
channels impacts to
commercial fisheries
reduction of water storage capacities
Suspended material sediment can affect light penetration, channel stability, fisheries and habitat
Increased flood hazards
increased water treatment
Name Off stream damages
costs
decreased capacity in conveyance
facilities higher infrastructure
maintenance costs
What has increased the amount of Urbanization and development
impervious surface in our
watersheds?
nutrients
pathogens
heavy
metals
priority pollutants include
toxics
sediment
salts
detergent
s
hydro carbons
Federal Water Pollution Control Act enacted to restore and maintain the
chemical, physical and biological integrity of the waters of the US
Clean Water Act (CWA)
administered by USEPA
water quality certification
requires applicant, including any construction or operation of a
Section 401
facility, to obtain certification to discharge ANY pollutant.
administered by the State
Section 402 NPDES Regs
NPDES National Pollutant Discharge Elimination System
MS4 Municipal Separate Storm Sewers Systems
Nationwide Urban Runoff
NURP Program 1987-1983
led to EPA regulating stormwater
https://quizlet.com/217277423/cesswi-flash-cards/ 2/
13
cda
C
CESSWI EXAMINATION QUESTIONS WITH VERIFIED
A+ ANSWERS LATEST UPDATE//2025-2026 ED
Terms in this set (298)
process in which, by the actions of wind and/or water, soil
Erosion
particles detached and transported
Sediment eroded material suspended in wind or water
Sedimentation deposition of eroded material
splas
h
Types of Erosion sheet
rill
gully
chann
el
Splash erosion raindrop impact energy is enough to dislodge surface sediments
caused by rain splash detaching soil particles lifting them up
sheet erosion
and removing them by shallow "sheets" of water flowing
down the sloped soil surface
Rill Erosion as flow concentrates, small channels begin to form in the soil surface
Formed when runoff cuts rills deeper and wider or when
Gully Erosion
flows from several rills come together and form a large
channels
Channel Erosion may become unstable due to increased flows or changes in upstream
sediment load
Natural erosion generally considered due to the influences of climate on the surface of
the earth
Accelerated erosion natural erosion plus human activities
Unrestricted
What problems can accelerated development removal of
erosion cause? surface cover increased
imperviousness
poor stewardship
https://quizlet.com/217277423/cesswi-flash-cards/ 1/
13
, 10/15/25, 1:57 PM CESSWI Flashcards | Quizlet
problems for down slope property
owners nuisance problems on
Problems associated with
streets
construction related erosion
clog streams and storm
drains increased turbidity
downstream cover sensitive
habitat with sediment
destruction of spawning areas, food
sources, habitat direct toxicity to wildlife
lake degradation
Identify instream damages of sediment
filling of navigation
channels impacts to
commercial fisheries
reduction of water storage capacities
Suspended material sediment can affect light penetration, channel stability, fisheries and habitat
Increased flood hazards
increased water treatment
Name Off stream damages
costs
decreased capacity in conveyance
facilities higher infrastructure
maintenance costs
What has increased the amount of Urbanization and development
impervious surface in our
watersheds?
nutrients
pathogens
heavy
metals
priority pollutants include
toxics
sediment
salts
detergent
s
hydro carbons
Federal Water Pollution Control Act enacted to restore and maintain the
chemical, physical and biological integrity of the waters of the US
Clean Water Act (CWA)
administered by USEPA
water quality certification
requires applicant, including any construction or operation of a
Section 401
facility, to obtain certification to discharge ANY pollutant.
administered by the State
Section 402 NPDES Regs
NPDES National Pollutant Discharge Elimination System
MS4 Municipal Separate Storm Sewers Systems
Nationwide Urban Runoff
NURP Program 1987-1983
led to EPA regulating stormwater
https://quizlet.com/217277423/cesswi-flash-cards/ 2/
13
