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CESSWI COMPLETE EXAM WITH ALL QUESTIONS AND ANSWERS
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CESSWI COMPLETE EXAM WITH ALL QUESTIONSAND 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
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
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
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
1987-1983
, led to EPA regulating stormwater
Phase I
(1987 - 1992) - 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 - ANSWER enacted April 1992,
identified minimum requirements for NPDES stormwater permits
Section 404 - ANSWER regulates dredge / fill permitting into waters
of the US administered by USACE
CZARA - ANSWER Coastal Zone Act Reauthorization Amendments
(CZARA) of 1990 requires coastal zone states to develop Coastal
Nonpoint Pollution Control Programs
section 6217 nonpoint source in coastal areas
stormwater - ANSWER stormwater runoff, snow melt runoff, and
surface runoff and drainage
NPDES stormwater regulation say - ANSWER stormwater must be
in any discernable, confined, and discrete conveyance, including but
not limited to any pipe, ditch, channel, tunnel, well, discrete fissure,
container, rolling stock, concentrated feeding operation....
waters of the US - ANSWER waters used for interstate or foreign
commerce
all interstate waters including wetlands
all other waters, the use ofr degeration of which would affect
interstate or foreign commerce
impoundments of waters
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