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  • 5930SummerhillRdTexarkana,Texas755039038388533fax9038324700

    TECHNICALMEMORANDUM

    DRAFT

    THIS DOCUMENT IS RELEASED FORTHE PURPOSE OF INTERIM REVIEWUNDERTHEAUTHORITYOFENGINEER,P.E.,TEXASNO.12345ONDATE.ITISNOTTOBEUSEDFORCONSTRUCTION,BIDDINGORPERMITPURPOSES.FREESEANDNICHOLS,INC.TEXAS REGISTERED ENGINEERINGFIRMF2144

    TO: BeckyGriffith,JonJarvis

    FROM SpandanaTummuri

    SUBJECT: TechnicalMemorandumonIPAnalysis

    PROJECT: SulphurRiverBasinFeasibilityStudy

    DATE: 08/28/2014

    CC: TomGooch,JonAlbright,RobertMurray

  • SulphurRiverBasinFeasibilityStudyInternationalPaperImpactAnalysis08/28/2014Page2of34

    TABLEOFCONTENTS

    1.0 INTRODUCTION............................................................................................................................................42.0 INTERNATIONALPAPEROPERATIONS.............................................................................................42.1 IPPlantOperations..................................................................................................................................42.2 IPDischargePermit.................................................................................................................................5

    3.0 WRIGHTPATMANOPERATIONS..........................................................................................................73.1 OperatingRuleCurves...........................................................................................................................83.2 ReallocationScenarios...........................................................................................................................9

    4.0 MODELINGAPPROACH..........................................................................................................................104.1 ImpactAnalysis......................................................................................................................................124.2 KeyOperationalConcerns.................................................................................................................134.3 BackFlowAnalysis...............................................................................................................................13

    5.0 RESULTSANDCONCLUSIONS.............................................................................................................155.1 AverageConditions..............................................................................................................................155.2 Seasonality...............................................................................................................................................185.3 SimulatedHoldingPondOperations............................................................................................275.4 HoldingPondRemainingVolume..................................................................................................315.5 Conclusions..............................................................................................................................................32

    6.0 RECOMMENDATIONS..............................................................................................................................34APPENDICES

    AppendixAInternationalPaperDischargePermitAppendixBFigures

  • SulphurRiverBasinFeasibilityStudyInternationalPaperImpactAnalysis08/28/2014Page3of34LISTOFFIGURESFigure1 IllustrationoftheMonthlyPercentMatchofIPDischargestotheSulphurRiverFlows 6Figure2 IllustrationofaTypicalDamandVariousPools 8Figure3 InterimandUltimateOperatingRuleCurvesforWrightPatmanLake 9Figure4 VariousOperatingRuleCurvesandReallocationScenarios forWrightPatmanLake 10Figure5 SummaryofDemandsonWrightPatmanLakeforVariousOperatingCurveScenarios 11Figure6 FlowChartDepictingtheModelingMethodology 12Figure7 SulphurRiverElevationsatIPDischargeLocationforVariousWrightPatmanReleases 14Figure8 PlotshowingSulphurRiverElevationforVariousWrightPatmanReleases 15Figure9 FlowFrequencyChartofWrightPatmanReleasesforInterimCurveOperations 16Figure10 FlowFrequencyChartofWrightPatmanReleasesforUltimateRuleCurveOperations 17Figure11 FlowFrequencyChartofWrightPatmanReleasesforVariousReallocationScenarios 18Figure12 FrequencyofPeriodofRecordWrightPatmanOutflowsinFallSeason 20Figure13 FrequencyofPeriodofRecordWrightPatmanOutflowsinWinterSeason 21Figure14 FrequencyofPeriodofRecordWrightPatmanOutflowsinSpringSeason 22Figure15 FrequencyofPeriodofRecordWrightPatmanOutflowsinSummerSeason 23Figure16 ComparisonofJanuaryCountforVariousOperationalScenarios(19381958) 25Figure17 ComparisonofJanuaryCountforVariousOperationalScenarios(19591978) 25Figure18 ComparisonofJanuaryCountforVariousOperationalScenarios(19792007) 26Figure19 Comparisonof JanuaryCount forVariousOperationalScenarios inWetHydrologicYears 26Figure20 HoldingPondSimulationsforInterimCurveOperations 28Figure21 HoldingPondSimulationsforUltimateRuleCurveOperations 29Figure22 HoldingPondSimulationsforReallocationScenario1232.5Feet 30Figure23 HoldingPondSimulationsforReallocationScenario2242.5Feet 30Figure24 HoldingPondSimulationsforReallocationScenario3252.5Feet 31Figure25 CumulativeTraceofRemainingVolumeofEffluentintheHoldingPond 32

    LISTOFTABLES

    Table1 SummaryIPPermitRequirementsforOutfallConditionsAandB 7Table2 TableshowingtheNumberofTimesFavorableFlowshadoccurredinagivenmonth(Count) 24

  • SulphurRiverBasinFeasibilityStudyInternationalPaperImpactAnalysis08/28/2014Page4of34

    1.0 INTRODUCTION

    Thepurposeofthistechnicalmemorandumistosummarizetheimpactsofstrategiestodevelopadditional

    watersupplyintheSulphurRiverBasinbyreallocatingstorageinWrightPatmanLakeontheoperationsof

    theInternationalPaperCompanysTexarkanaMill(IP).IPislocatednearTexarkana,Texasinthelowerportion

    oftheSulphurRiverBasinneartheTexas/Arkansasstateline.TheTexarkanaPlantdrawsitswatersupplyfrom

    WrightPatmanLakeanddischargesitsplanteffluentintotheSulphurRiverimmediatelydownstreamofthe

    WrightPatmanDam. Becauseofthisproximityandotherdependencies,modificationstoWrightPatman

    operatingparametershavethepotentialtoimpactplantoperations.Thepurposeofthisanalysisistodevelop

    anunderstandingoftherelationshipbetweenthereleasesfromWrightPatmanandIPoperationsandthe

    potentialimpactchangesinWrightPatmanreleasescouldhaveonIPoperations.

    2.0 INTERNATIONALPAPEROPERATIONS

    The International Paper Company is a leading firm in paper and packaging industrywithmanufacturing

    operationsspreadacrossseveralcontinents. IPsTexarkanaMill is located inQueenCity,Texasnear the

    junctionofTexas,Arkansas,andLouisiana.TheTexarkanaMillprimarilyproducesbleachboardforpackaging,

    drinkingcups,andfoldingcartons.TheMillhasbeeninoperationsincethelate70sandhasbeenasignificant

    wateruserintheSulphurBasin.

    2.1 IPPLANTOPERATIONS

    The TexarkanaMill operations are dependent onWright Patman Lake both as awater source for plant

    operationsandtoaugmentriver flowstoenhanceeffluentdischargeactivities. TexarkanaWaterUtilities

    (TWU)holdsarighttodivertwaterfromWrightPatmanLakeformunicipal(upto45,000acft.)andindustrial

    (upto135,000acft)usesonanannualbasis. IPandTWUentered intoacontractwhichallows IPtouse

    approximately67,600acft(60.3MGD)ofTWUswaterannually.IPdivertsrawwaterfromanintakestructure

    onthesouthsideWrightPatmanLakeanddeliversittoatreatmentplantoperatedbyIPundercontractwith

    TWU.Currently,IPtreatsanddeliversabout23MGDofwaterformunicipalusebyDomino,QueenCity,and

    Atlanta.

    IPusestreatedwaterforalltheplantoperationsandgeneratesabout2830MGDofeffluentfromtheplant

    operations. Theplantoperationsmaximize theuseofavailablewaterand recyclemostof it through the

    manufacturingprocess. Theeffluent from variousprocess cycles is collected in theaerated stabilization

  • SulphurRiverBasinFeasibilityStudyInternationalPaperImpactAnalysis08/28/2014Page5of34basins. Therearetwoaeratedstabilizationbasinseachcoveringanareaofapproximately72acres. After

    retainingtheeffluentintheeachoneoftheaeratedstabilizationbasinfortwotothreedays,IPdivertsthe

    treatedeffluenttotheholdingpondwheretheeffluentishelduntilitisreleasedintheSulphurRiver.The

    holdingpondcapacityisabout26,300acft.Thepondisabout20ftdeepanditcoversapproximately1,315

    acresoftheproperty.

    2.2 IPDISCHARGEPERMIT

    TheTexasCommissiononEnvironmentalQuality(TCEQ)hasissuedawaterqualitypermittoIP,whichgoverns

    dischargesofeffluentfromtheholdingpondintotheSulphurRiver.Dischargesaremadetoaremnantchannel

    ofBakersslough,which joinstheSulphurRiverbelowWrightPatman insegmentno.0301oftheSulphur

    RiverBasin. IPmakesdischarges froma rectangularstructurecalledOutfall001,whichcontains the two

    pipelinesusedformakingdischarges.Thecapacityofeachoneofthepipesisapproximately323.15MGD,

    thus restricting thedailymaximumdischarges from theOutfall001 to646.3MGD. IPsdischargepermit

    includesbothwaterquantityandwaterqualityrequirements.ThedischargepermitisincludedinAppendix

    Aofthismemorandum.

    Ofthewaterquantityparameters,themost importantone isthecriterionrestrictingIPsabilitytorelease

    flows. IPcannotmakedischargesfromtheirholdingpond iftheflow inSulphurRiver,asmeasuredatthe

    WrightPatmandam,isbelow50cfs.Inadditiontothat,IPhasarestrictiononthedailyaveragepercentage

    thatplanteffluentmaycompriseofthetotalriverflow.Thispercentagevariesfrommonthtomonthandis

    definedbymeansof theOutfalldischargeconditionsspecified in thepermit. IPhas twodifferentoutfall

    dischargeconditionspermittedinthedischargepermit:OutfallConditionAandOutfallConditionB. Each

    outfallconditionconsistsofavariablemonthly trendofpercent