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CPESC Exam Questions With Verified Answers

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CPESC Exam Questions With Verified Answers Erosion - answerprocess in which, by the actions of wind and/or water, soil particles detached and transported Sediment - answereroded material suspended in wind or water Sedimentation - answerdeposition of eroded material Types of Erosion - answersp...

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  • September 29, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • CPESC
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CPESC Exam Questions With Verified
Answers


Erosion - answer✔process in which, by the actions of wind and/or water, soil particles detached

and transported


Sediment - answer✔eroded material suspended in wind or water


Sedimentation - answer✔deposition of eroded material


Types of Erosion - answer✔splash


sheet

rill

gully

channel


Splash erosion - answer✔raindrop impact energy is enough to dislodge surface sediments


sheet erosion - answer✔caused by rain splash detaching soil particles lifting them up and

removing them by shallow "sheets" of water flowing down the sloped soil surface


Rill Erosion - answer✔as flow concentrates, small channels begin to form in the soil surface

, ©BRAINBARTER 2024/2025


Gully Erosion - answer✔Formed when runoff cuts rills deeper and wider or when flows from

several rills come together and form a large channels


Channel Erosion - answer✔may become unstable due to increased flows or changes in upstream

sediment load


Natural erosion - answer✔generally considered due to the influences of climate on the surface of

the earth


Accelerated erosion - answer✔natural erosion plus human activities


What problems can accelerated erosion cause? - answer✔Unrestricted development


removal of surface cover

increased imperviousness

poor stewardship


Problems associated with construction related erosion - answer✔problems for down slope

property owners

nuisance problems on streets

clog streams and storm drains

increased turbidity downstream

cover sensitive habitat with sediment

, ©BRAINBARTER 2024/2025


Identify instream damages of sediment - answer✔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


Suspended material - answer✔sediment can affect light penetration, channel stability, fisheries

and habitat


Name Off stream damages - answer✔Increased flood hazards


increased water treatment costs

decreased capacity in conveyance facilities

higher infrastructure maintenance costs


What has increased the amount of impervious surface in our watersheds? - answer✔Urbanization

and development


priority pollutants include - answer✔nutrients


pathogens

heavy metals

, ©BRAINBARTER 2024/2025


toxics

sediment

salts

detergents

hydro carbons


Clean Water Act (CWA) - answer✔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


Section 401 - answer✔water quality certification


requires applicant, including any construction or operation of a facility, to obtain certification to

discharge ANY pollutant.

administered by the State


Section 402 - answer✔NPDES Regs


NPDES - answer✔National Pollutant Discharge Elimination System


MS4 - answer✔Municipal Separate Storm Sewers Systems


NURP - answer✔Nationwide Urban Runoff Program

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