CPESC Exam 1 COMPLETE QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
process in which, by the actions of wind and/or water,
Erosion
soil particles detached and transported
Sediment eroded material suspended in wind or water
Sedimentation deposition of eroded material
Splash erosion raindrop impact energy is enough to dislodge surface 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 soil surface
Rill Erosion as flow concentrates, small channels begin to form in the soil
surface
Formed when runoff cuts rills deeper and wider or when
Gully Erosion
flows from several rills come together and form a
large channels
Channel Erosion may become unstable due to increased flows or changes in
upstream sediment load
Natural erosion generally considered due to the influences of climate on the
surface of the earth
Accelerated erosion natural erosion plus human activities
Unrestricted
What problems can development
accelerated erosion cause? removal of
surface cover
increased
imperviousness
poor stewardship
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problems for down slope
property owners nuisance
Problems associated with
problems on streets
construction related
clog streams and
erosion
storm drains
increased turbidity
downstream cover
sensitive habitat with
sediment
destruction of spawning areas,
food sources, habitat direct
toxicity to wildlife
Identify instream damages of
lake degradation
sediment
filling of navigation
channels impacts to
commercial fisheries
reduction of water storage capacities
Suspended material sediment can affect light penetration, channel stability, fisheries
and habitat
Increased flood
hazards increased
Name Off stream damages
water treatment
costs
decreased capacity in
conveyance facilities higher
infrastructure maintenance
costs
What has increased the Urbanization and development
amount of impervious
surface in our watersheds?
nutrient
s
pathog
ens
priority pollutants include
heavy
metals
toxics
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sedime
nt salts
deterge
nts
hydro carbons
Federal Water Pollution Control Act enacted to restore
and maintain the chemical, physical and biological
Clean Water Act (CWA)
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
MS4 Municipal Separate Storm Sewers Systems
Nationwide Urban
NURP Runoff Program 1987-
1983
led to EPA regulating stormwater
already covered by NPDES
permit facilities that engage
Phase I
in industrial activity Large
(1987 -
municipal storm systems
1992)
(>250,000)
Medium municipal storms systems
(100 - 250 K) facilities that EPA
said were significant contributors
Storm Water Implementation enacted April 1992, identified minimum requirements for NPDES
Rule stormwater permits
Section 404 regulates dredge / fill permitting into waters of the US
administered by USACE
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Coastal Zone Act Reauthorization Amendments
(CZARA) of 1990 requires coastal zone states to
CZARA
develop Coastal Nonpoint Pollution Control
Programs
section 6217 nonpoint source in coastal areas
stormwater stormwater runoff, snow melt runoff, and surface runoff and
drainage
stormwater must be in any discernable, confined, and
NPDES stormwater regulation discrete conveyance, including but not limited to any
say
pipe, ditch, channel, tunnel, well, discrete fissure,
container, rolling stock, concentrated feeding
operation....
waters used for interstate or
foreign commerce all
interstate waters including
waters of the US wetlands
all other waters, the use ofr degeration of which would
affect interstate or foreign commerce
impoundments
of waters
territorial sea
wetlands adjacent to waters above
December 1999, require construction sites disturbing
Phase II
equal to or greater than 1 acre and less than 5 to
control pollutants in stormwater runoff.
SWMP Stormwater Management Plan
Public Education and
Outreach Public
Participation /
Involvement
6 minimum measures of SWMP
Illicit Discharge Detection
and Elimination
Construction Site Runoff
Control
Post Construction Runoff Control
Pollution Prevention / Good Housekeeping
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