CESSWI EXAM QUESTIONS AND ANSWERS
1. Erosion
ANS process in which, by the actions of wind and/or water, soil particles detached and transported
2. Sediment
ANS eroded material suspended in wind or water
3. Sedimentation
ANS deposition of eroded material
4. Types of Erosion
ANS splash sheet
rill
gully
channel
5. Splash erosion
ANS raindrop impact energy is enough to dislodge surface sediments
6. sheet erosion
ANS caused by rain splash detaching soil particles lifting them up and removing them by
shallow "sheets" of water flowing down the sloped soil surface
,7. Rill Erosion
ANS as flow concentrates, small channels begin to form in the soil surface
8. Gully Erosion
ANS Formed when runott cuts rills deeper and wider or when flows from several rills come together
and form a large channels
9. Channel Erosion
ANS may become unstable due to increased flows or changes in upstream sediment load
10. Natural erosion
ANS generally considered due to the influences of climate on the surface of the earth
11. Accelerated erosion
ANS natural erosion plus human activities
12. What problems can accelerated erosion cause?
ANS Unrestricted development removal of surface cover
increased
imperviousness poor
stewardship
13. Problems associated with construction related erosion
ANS problems for down slope
,property owners
nuisance problems on
streets clog streams and
storm drains increased
turbidity downstream
cover sensitive habitat with sediment
14. Identify instream damages of sediment
ANS destruction of spawning areas, food sources, habitat direct toxicity to wildlife
lake degradation
filling of navigation channels
impacts to commercial fisheries
reduction of water storage capacities
15. Suspended material
ANS sediment can attect light penetration, channel stability, fisheries and habitat
16. Name Off stream damages
ANS Increased flood hazards increased water
treatment costs
decreased capacity in conveyance facilities
higher infrastructure maintenance costs
17. What has increased the amount of impervious surface in our
, watersheds?
ANS -
Urbanization and development
18. priority pollutants include
ANS nutrients pathogens
heavy metals
toxics
sediment
salts
detergents
hydro carbons
19. Clean Water Act (CWA)
ANS Federal Water Pollution Control Act enacted to restore and maintain the chemical, physical
and biological integrity of the waters of the US
administered by USEPA
20. Section 401
ANS water quality certification
requires applicant, including any construction or operation of a facility, to obtain certification to discharge ANY
pollutant. administered by the State
1. Erosion
ANS process in which, by the actions of wind and/or water, soil particles detached and transported
2. Sediment
ANS eroded material suspended in wind or water
3. Sedimentation
ANS deposition of eroded material
4. Types of Erosion
ANS splash sheet
rill
gully
channel
5. Splash erosion
ANS raindrop impact energy is enough to dislodge surface sediments
6. sheet erosion
ANS caused by rain splash detaching soil particles lifting them up and removing them by
shallow "sheets" of water flowing down the sloped soil surface
,7. Rill Erosion
ANS as flow concentrates, small channels begin to form in the soil surface
8. Gully Erosion
ANS Formed when runott cuts rills deeper and wider or when flows from several rills come together
and form a large channels
9. Channel Erosion
ANS may become unstable due to increased flows or changes in upstream sediment load
10. Natural erosion
ANS generally considered due to the influences of climate on the surface of the earth
11. Accelerated erosion
ANS natural erosion plus human activities
12. What problems can accelerated erosion cause?
ANS Unrestricted development removal of surface cover
increased
imperviousness poor
stewardship
13. Problems associated with construction related erosion
ANS problems for down slope
,property owners
nuisance problems on
streets clog streams and
storm drains increased
turbidity downstream
cover sensitive habitat with sediment
14. Identify instream damages of sediment
ANS destruction of spawning areas, food sources, habitat direct toxicity to wildlife
lake degradation
filling of navigation channels
impacts to commercial fisheries
reduction of water storage capacities
15. Suspended material
ANS sediment can attect light penetration, channel stability, fisheries and habitat
16. Name Off stream damages
ANS Increased flood hazards increased water
treatment costs
decreased capacity in conveyance facilities
higher infrastructure maintenance costs
17. What has increased the amount of impervious surface in our
, watersheds?
ANS -
Urbanization and development
18. priority pollutants include
ANS nutrients pathogens
heavy metals
toxics
sediment
salts
detergents
hydro carbons
19. Clean Water Act (CWA)
ANS Federal Water Pollution Control Act enacted to restore and maintain the chemical, physical
and biological integrity of the waters of the US
administered by USEPA
20. Section 401
ANS water quality certification
requires applicant, including any construction or operation of a facility, to obtain certification to discharge ANY
pollutant. administered by the State
