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
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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
