EROSION AND SEDIMENT CONTROL EXAM QUESTIONS WITH CORRECT ANSWERS GRADED

EROSION AND SEDIMENT CONTROL EXAM
QUESTIONS WITH CORRECT ANSWERS
GRADED A+ FOR 2025-2026 ASSURED
EXCEL!!

MinimumvStandardv1v-vvCORRECTvANSWERSStabilization



permanentvorvtemporaryvsoilvstabilizationvshallvbevappliedvtovdenudedvareasvwithinvsevenvdaysvaft
ervfinalvgradevisvreachedvonvanyvportionvofvthevsite;vtemporaryvsoilvstabilizationvshallvbevappliedvwi
thinvsevenvdaysvtovdenudedvareasvthatvmayvnotvbevatvfinalvgradevbutvwillvremainvdormantvforvlong
ervthanv14vdays;vpermanentvstabilizationvshallvbevappliedvtovareasvthatvarevtovbevleftvdormantvforv
morevthanvonevyear



SitevNOTvatvFinalvGradev-vvCORRECTvANSWERS-vstabilizevinv14vdays

-vtemporarilyvseed

-vmulch

-vpermanentlyvstabilizevifvdormantv>v1vyear



SitevatvFinalvGradev-vvCORRECTvANSWERS-vstabilizevinv7vdaysv(recommendedvimmediately)

-vpermanentlyvorvtemporarilyvseedvandvmulch

-vmulch/matting/straw



MinimumvStandardv2v-vvCORRECTvANSWERSStockvPiles,vWastevandvBorrowvAreas



duringvconstruction,vsoilvstockvpilesvandvborrowvareasvshallvbevstabilizedvorvprotectedvwithvsedime
ntvtrappingvmeasures

,mulchvpreventsverosionvbyvprotectingvthevsurfacevfromvraindropvimpactvandvsiltvfencevinterceptsva
ndvdetainsvfromvdisturbedvareas



MinimumvStandardv3v-vvCORRECTvANSWERSPermanentvVegetation



permanentvvegetationvcovervshallvbevestablishedvonvdenudedvareasvnotvotherwisevpermanentlyvs
tabilizedv(permanentvvegetationvshallvnotvbevconsideredvestablishedvuntilvavgroundvcovervisvachiev
edvthatvisvuniform,vmaturevenoughvtovsurvive,vandvwillvinhibitverosionv*therevisvnov%vassociatedvwi
thvthis*)v



reduceverosionvandvdecreasevsedimentvyieldvfromvdisturbedvarea



thisvisvthevstandardvusedvtovverifyvthatvavsitevisvreadyvforvreleasevofvbondsvorvsurety



MinimumvStandardv4v-vvCORRECTvANSWERSFirst-StepvMeasures



Sedimentvbasinsvandvtraps,vperimetervdikes,vsedimentvbarriersvandvothervmeasuresvintendedvtovtr
apvsedimentvshallvbevconstructedvasvavfirstvstepvinvanyvland-
disturbingvactivityvandvshallvbevmadevfunctionalvbeforevupslopevlandvdisturbancevtakesvplace



avcertainvamountvofvinitialvlandvdisturbancevmayvbevrequiredvtovprovidevaccessvforvequipmentvtovi
nstallvthevperimetervcontrols,vbutvsitevclearingvandvgradingvshouldvbevkeptvtovavminimumvuntilvthev
perimetervcontrolsvarevinvplace



interceptsvandvdetainsvsmallvamountsvofvsedimentvfromvdisturbedvareasvduringvconstructionvoper
ationvtovpreventvsedimentvfromvleavingvthevsitevandvdecreasevvelocityvofvsheetvflowsvandvlow-to-
moderatevlevelvchannelvflow

, PerimetervControlsv-
vvCORRECTvANSWERSassuresvthatvsedimentvdoesvnotvleavevthevperimetervofvthevland-


disturbingvareavoncevsitevclearing,vgrading,vandvconstructionvcommences



Examples:vsiltvfences,vsedimentvtraps,vsedimentvbasins,vconstructionventrance,vtemporaryvdiversi
ons,vdiversions



MinimumvStandardv5v-vvCORRECTvANSWERSEarthenvStructurevStabilization



stabilizationvmeasuresvshallvbevappliedvtovearthenvstructuresvsuchvasvdams,vdikes,vandvdiversionsvi
mmediatelyvaftervinstallation



reduceverosionvandvsedimentationvandvreducevdamagevfromvsedimentvandvrunoffvtovdownstream
vorvoff-sitevareas




MinimumvStandardv6v-vvCORRECTvANSWERSTrapsvandvBasins



sedimentvtrapsvandvbasinsvshallvbevdesignedvandvconstructedvbasedvuponvthevtotalvdrainagevareav
(notvjustvdisturbedvarea)vtovbevservedvbyvthevtrapvorvbasin



SedimentvTrapsv-
vvCORRECTvANSWERSminimumvstoragevcapacityvshallvbev134vcubicvyardsvpervacrevofvdrainagevarea


vandvshallvonlyvcontrolvdrainagevareasvlessvthanv3vacres




*stonevoutletv=vtrap*



SedimentvBasinsv-
vvCORRECTvANSWERSsurfacevrunoffvfromvdisturbedvareasvthatvisvcomprisedvofvflowvfromvdrainagev


areasvgreatervthanvorvequalvtov3vacresvshallvbevcontrolledvbyvavbasin;vminimumvstoragevcapacityvofv