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Mark Statz <br />From:Mark Statz <br />Sent:Tuesday, September 20, 2022 4:02 PM <br />To:'Matthew Kocian' <br />Cc:ntomczik@ricecreek.org <br />Subject: <br />Centerville Lake <br />MattandNick, <br />ThanksfortakingthetimetochattodayregardingyourrecentresearchonCentervilleLake. <br />IĻƩĻ͸ƭacoupleoftakeawaysandactionitems: <br />IspokewithBobSchackandhecannotmaketheOctober26Meeting,soheoptedtoappearinfrontofthe <br />CouncilnextweekattheirmeetingonSeptember28.Hewillappearaspartoftheirworksession.Thecouncil <br />willnottakeanyformalactionatthattime;theywillsimplyhearhisinput. <br />L͸ƒhopingyou(Matt)canappearbeforetheCConOctober26at5PMattheirworksessiontogiveabrief <br />overviewofyourresearch,itsconclusions,andpossiblenextsteps,preppingthemforpossibleparticipationina <br />phosphorussequesterproject. <br />Centerville\[ğƉĻ͸ƭPproblemismostlyrelatedtointernalloadingandaͻĭƌĻğƓǒƦͼofthelakeisprobablynot <br />possiblewithoutPsequestering. <br />o LoadingfromPeltierappearstobeonlyduringlargestormevents,andeventhen,thecontributionis <br />lessthan10%duringthoseyears,withanaveragecontributionofaround2%.Theremayhavebeen <br />somelargerloadingevents,historicallywhenSPRWSusedthelakeduringdroughtconditions. <br />o Thecontributionofincomingdrainagecouldusemorestudy.Itiscurrentlyestimatedat40%,butthisis <br />onlyamodeledresult.Wewouldliketoseemoreresearchonthisissuetofurtherdemonstratethat <br />internalloadingistheprimary(almostsole)sourceofissues. <br />tsofthisresearcharestillpending,butearlydatashows <br />o Carpdonotappeartobeamajorissue.Resul <br />lowtomoderateimpacts. <br />Dredging,hydraulicdredgingorͻƚƓƭŷƚƩĻͼtreatmentarepracticesthathavenotprovencosteffectiveinmost <br />casesanditdoesnotappearthatthislakewouldbeanydifferent. <br />PeltierLakeisprobablynotagreatcandidateforaPsequesteringprojectbecauseithasamuchhigherexternal <br />loadingcomponent,whichcouldoverwhelmthetreatmentinshortorder. <br />ued <br />Breakingthetreatmentinto2,3ormoredosesmaybeasormoreeffective.Thisisanareaofcontin <br />researchintheindustry. <br />Totalcostissomewherearound$1M <br />ThereareafewotherproductsouttherebesidesAlum(Bobremindedmeofthis,thusmyuseofthetermͻt <br />ƭĻƨǒĻƭƷĻƩźƓŭͼΜ͵ <br />TheprojectmaybeeligibleforgrantsthroughtheLegacyfund.Thegrantcyclewouldhaveapplicationsduein <br />JulyorAugust.Therefore,a2024projectmaybeappropriate,withagrantapplicationbeingsubmittedin2023. <br />Thedistrictisconsideringestablishingaspecialtaxingdistricttoensureuniformpaymentfromlakeproperty <br />owners. <br />Thereare80orsopropertyownersonthelake. <br />PotentialPartners <br />o CityofCenterville <br />o CentervilleLakeAssoc. <br />o CityofLinoLakes <br />o AnokaCounty(orAnokaCountyParks) <br />o RiceCreekWatershedDistrict <br />1 <br /> <br />