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"Dewatering"meanstheremovalofsurfaceorgroundwatertodryand/orsolidifyaconstruction <br />sitetoenableconstructionactivity.DewateringmayrequireaMinnesotaDepartmentofNatural <br />Resources(DNR)waterappropriationpermitand,ifdewateringwateriscontaminated,dischargeof <br />suchwatermayrequireanindividualMPCANPDES/SDSpermit. <br />ͻ5bw <br />Catchment!ƩĻğͼ meanstheHydrologicUnit08areasdelineatedanddigitizedbythe <br />MinnesotaDNR.ThecatchmentareasareavailablefordownloadattheMinnesotaDNRGeospatial <br />Commonswebsite.DNRcatchmentareasmaybelocallycorrected,inwhichcasethelocal <br />correctionsmaybeused. <br />"EnergyDissipation"meansmethodsemployedatpipeoutletstopreventerosioncausedbythe <br />rapiddischargeofwaterscouringsoils. <br />"ErosionPrevention"meansmeasuresemployedtopreventerosionsuchassoilstabilization <br />practices,permanentcoverorconstructionphasing. <br />"Fullyreconstructed"meansareaswhereimpervioussurfaceshavebeenremoveddownto <br />theunderlyingsoils.Activitiessuchasstructurerenovation,millandoverlayprojects,and <br />otherpavementrehabilitationprojectsthatdonotexposetheunderlyingsoilsbeneaththe <br />structure,pavement,oractivityarenotconsideredfullyreconstructed.Maintenance <br />activitiessuchascatchbasinrepair/replacement,utilityrepair/replacement,pipe <br />repair/replacement,lighting,andpedestrianrampimprovementsarenotconsideredfully <br />reconstructed. <br />ͻDĻƓĻƩğƌƦĻƩƒźƷͼ meansapermitissuedunderMinn.R.7001.0210toacategoryof <br />owners/operatorswhoseoperations,emissions,activities,discharges,orfacilitiesarethe <br />sameorsubstantiallysimilar. <br />"Groundwater"meansthewatercontainedbelowthesurfaceoftheearthinthesaturated <br />zoneincluding,withoutlimitation,allwaterswhetherunderconfined,unconfined,or <br />perchedconditions,innearsurfaceunconsolidatedsedimentorregolith,orinrock <br />formationsdeeperunderground. <br />"Infeasible"meansnottechnologicallypossibleornoteconomicallypracticableand <br />achievableinlightofthebestindustrypractices. <br />"Initiatedimmediately"meanstakinganactiontocommencesoilstabilizationassoonas <br />practicable,butnolaterthantheendoftheworkday,followingthedaywhentheland <br />disturbingactivitiestemporarilyorpermanentlyceased.Ifconstructionworkonthesitewill <br />beceasefor14ormoreadditionalcalendardays,orseven(7)calendardaysonaproject <br />thatiswithinonemile(aerialradiusmeasurement)of,andflowsto,oneormoreofthe <br />following:ͻźƒƦğźƩĻķǞğƷĻƩƭͼͲͻƚƷŷĻƩspecialǞğƷĻƩƭͼͲͻƦƩƚŷźĬźƷĻķǞğƷĻƩƭͼͲand/or <br />ͻƩĻƭƷƩźĭƷĻķǞğƷĻƩƭͼasdefined),stabilizationcanbeimmediatelyinitiatedby: <br />a) Preppingthesoilforvegetativeornonvegetativestabilization;or <br />b) Applyingmulchorothernonvegetativeproducttotheexposedsoilarea;or <br />c) Seedingorplantingtheexposedarea;or <br />d) Startinganyoftheactivitiesinaconaportionoftheareatobestabilized,butnotonthe <br />entirearea;or <br />e) Finalizingarrangementstohavestabilizationproductfullyinstalledincompliancewiththe <br />applicabledeadlineforcompletingstabilization. <br />March2024|wqstrm498 <br />Page 2 of 23 <br /> <br />