CPESC Exam| Complete Exam Questions and
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Terms in this set (231)
Sediment Eroded material suspended in wind or water
Sedimentation Deposition of eroded material
Erosion types Splash, Sheet, Rill, Gully, and Channel
raindrop impact energy is enough to dislodge surface
Splash Erosion
sediments
Caused by rain splash detaching soil particles, lifting
Sheet Erosion them up, and removing them by shallow "sheets" of
water flowing down the sloped surfaces
Small channels formed in the soil surface from
Rill Erosion
concentrated flow
Formed when runoff cuts rills deeper and wider or
Gully Erosion when flows from several rills come together and form
a large channels
Channel may become unstable due to increased
Channel Erosion
flows or changes in upstream sediment load
Generally considered due to the influences of climate
Natural Erosion
on the surface of the earth
Accelerated Erosion Natural erosion combined with human activity
, Human causes of Unrestricted development, removal of surface cover,
accelerated erosion increased imperviousness, poor stewardship
Problems for downslope property owners, nuisance
Problems associated with
problems on street, clogging of streams and storm
construction related
drains, increased downstream turbidity, and
erosion
sedimentation on sensitive habitats
Destruction of spawn areas-food sources-habitats,
Instream damages of direct toxicity to wildlife, lake degradation, filling of
sediment navigation channels, impacts to commercial fisheries,
reduction of water storage capacities
sediment can affect light penetration, channel
Suspended material
stability, fisheries and habitat
Increased Flood Hazards, Increased water treatment
Off Stream damages costs, Decreased capacity in conveyance facilities,
Higher infrastructure maintenance costs
What has increased the Urbanization and development
amount of impervious
surface in watersheds?
Nutrients, Pathogens, Heavy Metals, Toxics, Sediment,
Priority Pollutants (8)
Salts, Detergents, and Hydrocarbons
Federal Water Pollution Control Act enacted to
restore and maintain the chemical, physical and
Clean Water Act (CWA) biological integrity of the waters of the US
administered by USEPA
water quality certification
requires applicant, including any construction or
Section 401 operation of a facility, to obtain certification to
discharge ANY pollutant.
administered by the State
Section 402 NPDES Regs
NPDES National Pollutant Discharge Elimination System
CORRECT Answers| (2025 update) Assured
success| grade A+
Save
Terms in this set (231)
Sediment Eroded material suspended in wind or water
Sedimentation Deposition of eroded material
Erosion types Splash, Sheet, Rill, Gully, and Channel
raindrop impact energy is enough to dislodge surface
Splash Erosion
sediments
Caused by rain splash detaching soil particles, lifting
Sheet Erosion them up, and removing them by shallow "sheets" of
water flowing down the sloped surfaces
Small channels formed in the soil surface from
Rill Erosion
concentrated flow
Formed when runoff cuts rills deeper and wider or
Gully Erosion when flows from several rills come together and form
a large channels
Channel may become unstable due to increased
Channel Erosion
flows or changes in upstream sediment load
Generally considered due to the influences of climate
Natural Erosion
on the surface of the earth
Accelerated Erosion Natural erosion combined with human activity
, Human causes of Unrestricted development, removal of surface cover,
accelerated erosion increased imperviousness, poor stewardship
Problems for downslope property owners, nuisance
Problems associated with
problems on street, clogging of streams and storm
construction related
drains, increased downstream turbidity, and
erosion
sedimentation on sensitive habitats
Destruction of spawn areas-food sources-habitats,
Instream damages of direct toxicity to wildlife, lake degradation, filling of
sediment navigation channels, impacts to commercial fisheries,
reduction of water storage capacities
sediment can affect light penetration, channel
Suspended material
stability, fisheries and habitat
Increased Flood Hazards, Increased water treatment
Off Stream damages costs, Decreased capacity in conveyance facilities,
Higher infrastructure maintenance costs
What has increased the Urbanization and development
amount of impervious
surface in watersheds?
Nutrients, Pathogens, Heavy Metals, Toxics, Sediment,
Priority Pollutants (8)
Salts, Detergents, and Hydrocarbons
Federal Water Pollution Control Act enacted to
restore and maintain the chemical, physical and
Clean Water Act (CWA) biological integrity of the waters of the US
administered by USEPA
water quality certification
requires applicant, including any construction or
Section 401 operation of a facility, to obtain certification to
discharge ANY pollutant.
administered by the State
Section 402 NPDES Regs
NPDES National Pollutant Discharge Elimination System
