CESSWI EXAM WITH COMPLETE SOLUTIONS 100% CORRECT
LATEST UPDATE
Erosion -CORRECT ANSWER ->>process in which, by the actions of wind and/or water,
soil particles detached and transported
Sediment -CORRECT ANSWER ->>eroded material suspended in wind or water
Sedimentation -CORRECT ANSWER ->>deposition of eroded material
Types of Erosion -CORRECT
ANSWER ->>splash sheet
rill
gully
channel
Splash erosion -CORRECT ANSWER ->>raindrop impact energy is enough to
dislodge surface sediments
sheet erosion -CORRECT 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 -CORRECT ANSWER ->>as flow concentrates, small channels begin to
form in the soil surface
Gully Erosion -CORRECT ANSWER ->>Formed when runoff cuts rills deeper and
wider or when flows from several rills come together and form a large channels
,Channel Erosion -CORRECT ANSWER ->>may become unstable due to increased flows
or changes in upstream sediment load
Natural erosion -CORRECT ANSWER ->>generally considered due to the influences of
climate on the surface of the earth
Accelerated erosion -CORRECT ANSWER ->>natural erosion plus human activities
What problems can accelerated erosion cause? -CORRECT ANSWER ->>Unrestricted
development removal of surface cover
increased imperviousness
poor stewardship
Problems associated with construction related erosion -CORRECT ANSWER -
>>problems for down slope property owners
nuisance problems on streets
clog streams and storm drains
increase turbidity downstream
cover sensitive habitat with sediment
Recognize instream impacts of sediment -CORRECT ANSWER ->>destruction of
spawning areas, food sources, habitat
toxicity to wildlife directly
degradation of lake
flooding of navigation channels
impact to commercial fisheries
reduce water storage capacities
Suspended sediment -CORRECT ANSWER ->>sediment may alter light penetration,
channel stability,
,fisheries and habitat
Label off stream impacts -CORRECT ANSWER -
>>Increased flood hazards more costly to treat water
lower capacity in conveyance structures
higher infrastructure maintenance costs
What has increased the amount of impervious surface in our watersheds? -CORRECT
ANSWER ->>Urbanization and development
priority pollutants include -CORRECT
ANSWER ->>nutrients pathogens
heavy metals
toxics
sediment
salts
detergents
hydro carbons
Clean Water Act (CWA) -CORRECT 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 -CORRECT 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 -CORRECT ANSWER ->>NPDES Regs
NPDES -CORRECT ANSWER ->>National Pollutant Discharge Elimination System
MS4 -CORRECT ANSWER ->>Municipal Separate Storm Sewers Systems
NURP -CORRECT ANSWER ->>Nationwide Urban Runoff
Program1987-1983 led to EPA regulating stormwater
Phase I
(1987 - 1992) -CORRECT ANSWER ->>already covered by
NPDES permit facilities that engage in industrial activity
Large municipal storm systems (>250,000)
Medium municipal storms systems (100 - 250 K)
facilities that EPA said were significant contributors
Storm Water Implementation Rule -CORRECT ANSWER ->>enacted April 1992,
identified minimum requirements for NPDES stormwater permits
Section 404 -CORRECT ANSWER ->>regulates dredge / fill permitting into waters of
the US administered by USACE
CZARA - Coastal Zone Act Reauthorization Amendments of 1990 requires the coastal
zone states to develop the Coastal Nonpoint Pollution Control Programs
section 6217 nonpoint source in coastal areas
stormwater - stormwater runoff, snow melt runoff, and surface runoff and drainage
LATEST UPDATE
Erosion -CORRECT ANSWER ->>process in which, by the actions of wind and/or water,
soil particles detached and transported
Sediment -CORRECT ANSWER ->>eroded material suspended in wind or water
Sedimentation -CORRECT ANSWER ->>deposition of eroded material
Types of Erosion -CORRECT
ANSWER ->>splash sheet
rill
gully
channel
Splash erosion -CORRECT ANSWER ->>raindrop impact energy is enough to
dislodge surface sediments
sheet erosion -CORRECT 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 -CORRECT ANSWER ->>as flow concentrates, small channels begin to
form in the soil surface
Gully Erosion -CORRECT ANSWER ->>Formed when runoff cuts rills deeper and
wider or when flows from several rills come together and form a large channels
,Channel Erosion -CORRECT ANSWER ->>may become unstable due to increased flows
or changes in upstream sediment load
Natural erosion -CORRECT ANSWER ->>generally considered due to the influences of
climate on the surface of the earth
Accelerated erosion -CORRECT ANSWER ->>natural erosion plus human activities
What problems can accelerated erosion cause? -CORRECT ANSWER ->>Unrestricted
development removal of surface cover
increased imperviousness
poor stewardship
Problems associated with construction related erosion -CORRECT ANSWER -
>>problems for down slope property owners
nuisance problems on streets
clog streams and storm drains
increase turbidity downstream
cover sensitive habitat with sediment
Recognize instream impacts of sediment -CORRECT ANSWER ->>destruction of
spawning areas, food sources, habitat
toxicity to wildlife directly
degradation of lake
flooding of navigation channels
impact to commercial fisheries
reduce water storage capacities
Suspended sediment -CORRECT ANSWER ->>sediment may alter light penetration,
channel stability,
,fisheries and habitat
Label off stream impacts -CORRECT ANSWER -
>>Increased flood hazards more costly to treat water
lower capacity in conveyance structures
higher infrastructure maintenance costs
What has increased the amount of impervious surface in our watersheds? -CORRECT
ANSWER ->>Urbanization and development
priority pollutants include -CORRECT
ANSWER ->>nutrients pathogens
heavy metals
toxics
sediment
salts
detergents
hydro carbons
Clean Water Act (CWA) -CORRECT 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 -CORRECT 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 -CORRECT ANSWER ->>NPDES Regs
NPDES -CORRECT ANSWER ->>National Pollutant Discharge Elimination System
MS4 -CORRECT ANSWER ->>Municipal Separate Storm Sewers Systems
NURP -CORRECT ANSWER ->>Nationwide Urban Runoff
Program1987-1983 led to EPA regulating stormwater
Phase I
(1987 - 1992) -CORRECT ANSWER ->>already covered by
NPDES permit facilities that engage in industrial activity
Large municipal storm systems (>250,000)
Medium municipal storms systems (100 - 250 K)
facilities that EPA said were significant contributors
Storm Water Implementation Rule -CORRECT ANSWER ->>enacted April 1992,
identified minimum requirements for NPDES stormwater permits
Section 404 -CORRECT ANSWER ->>regulates dredge / fill permitting into waters of
the US administered by USACE
CZARA - Coastal Zone Act Reauthorization Amendments of 1990 requires the coastal
zone states to develop the Coastal Nonpoint Pollution Control Programs
section 6217 nonpoint source in coastal areas
stormwater - stormwater runoff, snow melt runoff, and surface runoff and drainage
