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CentralParkLakeProject#1210007IJFinalReport
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CentralParkLakeWatershedImprovementProjectWastewaterSystem&WetlandsWIRBAgreement#:1210007IJ
FINALREPORTforSepticSystemandWetlandConstruction,andLagoonReclamation
TableofContentsFinancialAccountability
EnvironmentalAccountabilityProgramAccountability
FinancialLedgerAppendices
July17,2014
JonesCountyConservationBoard12515CentralParkRoadCenterJunction,IA52212
POC:BradMormann,DirectorOffice:5634873541orcell:3194819004
CentralParkLakeProject#1210007IJFinalReport
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FinancialAccountability
WatershedImprovementFundsIJOBS
GrantAgreementBudgetLineItem
TotalFundsApproved($)
TotalFundsApprovedAmended($)
TotalFundsExpended($)
AvailableFunds($)
EngineeringDesignandPermits 14,250 11,024 11,024 0WetlandConstruction 15,456 2,162 2,162 0SepticSystemConstruction 44,250 74,750 74,750 0LagoonReclamation 19,500 5,520 5,520 0Totals 93,456 93,456 93,456 0Difference 0Allfundingwasrequiredtocompletetheengineeringdesignandpermitting,constructionphaseofthesepticsystemsandwetlands,andthereclamationofthelagoon.
EngineeringDesignandPermitting,SepticSystemandWetlandConstruction,andLagoonReclamationFunding
FundingSource Cash InKindContributions Total
ApprovedApplicationBudget($)
Actual($)
ApprovedApplicationBudget($)
Actual($)
ApprovedApplicationBudget($) Actual($)
WIRBIJOBS 93,456 93,456 93,456 93,456JonesCo.Supervisors 26,330 26,330 26,330 26,330JonesCo.ConservationBd. 5,444 5,443 1,924 3,029 7,368 8,472JonesSWCD 888 684 888 684EndingBalanceDNRLakeRestoration 38,604 38,604Totals 125,230 163,833 2,812 3,713 128,042 167,546
WatershedImprovementFundcontribution:Approvedapplicationbudget:73% Actual: 56%Duetotheincreasedactualcostversusprojectedcostoftheproject,thepercentageoftheprojectthattheWIRBFundallocateddropped.TheadditionalcostoftheprojectwasfundedbyaDNRLakeRestorationgrant.
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EnvironmentalAccountabilityTheoldwastewatertreatmentlagoonservingCentralParkLakewasdecommissionedandreclaimedforwetlandmitigation.Initialmonitoringofthelagoonwasconductedduring2011.TheIowaDNRinpartnershipwithIowaStateUniversityconductsregularmonitoringonthelake(3timesannually).Inaddition,monitoringofthebeachisconductedbytheIowaDNRbeachmonitoringprogramtomeasureE.colilevelsforrecreationpurposes.Additionalmonitoringisnowoccurringatthedischargeofthenewwetlandsitetodeterminetheimpactsofconvertingtheoldlagoontoawetland.Thesesampleswillbetakenfortwoyears,biweeklyMayJuly(6samples),Monthlyafterward(AugJan);3eventsamples.Parameters:ammonia,ecoli,nitrate+nitrite,orthoP,CBOD,TotalKjeldahlNitrogen,TotalPhosphate,TotalSuspendedSolids,watertemp(field),DissolvedOxygen(field),Chloride(field),pH(field).Becausetheconstructionworkontheprojectwascompletedonlyacoupleofmonthsagothereisnotenoughsamplingdatatoformconclusionsatthistime.Table3.SummaryofPracticeGoalsandAccomplishments
PracticeorActivity UnitApproved
Goal AccomplishmentsPercent
Completion
WetlandConstruction No. 2 2 100
SepticSystemConstruction No. 4 4 100
LagoonReclamation No. 1 1 100
Beforethisprojectwasinitiatedeffluentmaterialfromacampground,showerhouse,camperdumpstationandresidencewerebeingdischargedintoasinglecelllagoon.Now,withtheinstallationof4DNRCertifiedsepticsystems,alloftheeffluentmaterialisbeingtreated.Thesepticsystemsaredesignedtotreatacombined3,750gallonsperday.Aftercappingallpipesleadingtothelagoon,theeffluentmaterialandsludgewaspumpedandremovedfromthelagoon.Then6+inchesofsoilwasdugoutandplacedoutsidethewatershed.Oncecompletelycleanedout,thebasinwasreshapedtocreateashallowwetlandandallowforplantingofthearea.Thevegetationwillimprovenutrientuptakeandstabilizesoils.
Another1/3acrewetlandwascreatedtocapturesedimentandnutrients.Thiswetlandhasadrainageareaof7.8acres.Itisestimatedthattheaveragesoillossonthe70%bromegrass,30%croprotationwatershedis2tons/acre/year.Thistranslatesintonearly16tons/yearofsedimentmovingwithinthewatershedand90%ofthatmakingitswaytothenewwetland(14tons/year).Beforethewetlandwasbuilt80%ofthose14tons(11tons/year)movingthroughthewetlandsitemadeittotheLakeperyear.The90%sedimenttrapefficiencyofthewetlandmeansthatnowonly1ton/acre/yearismakingitswaytothelake.JeffTisl(IDALSDSCRegionalCoordinator)assistedwiththesecalculations.
Severalofthegoalsofthisprojecthavebeenmeetsofar.Severalthousandgallonsofeffluentisnowbeingtreatedin4septicsystemsinsteadofflowingintoasinglecelllagooninCentralParkLakeswatershed.Thiswatertreatmenttechniqueisessentialinlimitingexcessnutrientsandotherpollutants
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fromenteringtheLake.The1/3acrewetlandisnowholdingback10tons/yearofsedimentthatwouldhaveotherwiseflowedintotheLake.Thewatermonitoringprogramwillcontinuetoprovidedataonadditionalgoalachievementswhichwillbedocumentedinfuturereports.
ProgramAccountability
Inadditiontotheworkcompletedforthisproject,designworkandpermittingiscurrentlyoccurringona6.6acresedimentcontrolstructureonthemainwatershedtothewestoftheLakeanda1.5acresedimentcontrolstructureonthemainsouthwatershedforthelake.Thesetwostructuresareprojectedtostopnearly480tons/yrofsedimentfromenteringthelake.Inaddition,workisbeingdonetoimplementinparkurbandesignpracticestofurtherimprovethelakeandwatershedswaterquality.
Thusfarthisprojecthasbeenmovingalongsmoothly.Oncethewatermonitoringdataiscollectedandcompiledwewillhaveabettersenseofthefinaloutcomesoftheproject.
Appendices
NorthwestWetland
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ReclaimedLagoon/WetlandBefore
ReclaimedLagoon/WetlandAfter
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ResidenceSepticField
ShowerHouseSepticField
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CampgroundSepticField
DumpStationSepticField