Human and Ecological Risk Assessment - Earthjustice

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Appendix CAttachment C-2: Hydrogeologic EnvironmentHydrogeologic SettingHydrogeologic Environment (continued)Hydrogeologic EnvironmentPlant Code Description Code Description PercentageCommentHammond 6Db Alternating Sandstone, 2 Bedded Sedimentary Rock 100 Based on aquifers, surficial residuumLimestone and Shale - Deep(massive red clay)RegolithHarllee Branch 8E River Alluvium 6 River Valleys and Floodplainswith Overbank DepositHarrison 6Da Alternating Sandstone,Limestone and Shale - ThinSoilHarrison 6Fa River Alluvium WithOverbank DepositsHatfield's Ferry 6DaHatfield's Ferry 6FaAlternating Sandstone,Limestone and Shale - ThinSoilRiver Alluvium WithOverbank DepositsHennepin 7Aa Glacial Till Over BeddedSedimentary RockHennepin 7Bb Outwash Over BeddedSedimentary RockHennepin 7Ea River Alluvium WithOverbank DepositsHeskett 7Ea River Alluvium WithOverbank DepositsHolcomb 5Gb River Alluvium WithoutOverbank DepositsHomer City 6Da Alternating Sandstone,Limestone and Shale - ThinSoil100 Assigned based on predominant surficialgeology (99% floodplain and alluvium gravelterraces)2 Bedded Sedimentary Rock 20 Percentage based on surficial geology; thinsoils inferred from surficial geology6 River Valleys and Floodplainswith Overbank Deposit80 Percentage based on surficial geology;0%SNL = overbank deposits2 Bedded Sedimentary Rock 40 Percentage based on surficial geology; thinregolith inferred from colluvium6 River Valleys and Floodplainswith Overbank Deposit60 Percentage based on surficial geology; soils< 1% SNL3 Till Over Sedimentary Rock 30 Percentage to capture uncertainty in soils,surficial geology, principal aquifer2 Bedded Sedimentary Rock 30 Percentage to capture uncertainty in soils,surficial geology, principal aquifer6 River Valleys and Floodplainswith Overbank Deposit6 River Valleys and Floodplainswith Overbank Deposit7 River Valleys and Floodplainswithout Overbank Deposits40 Percentage to capture uncertainty in soils,surficial geology, principal aquifer100 Predominant alluvium surficialgeology(96%); mixed soils100 Alluvial valley with very coarse soils2 Bedded Sedimentary Rock 100 Setting based on aquifer coverages & Heath(1985); thin regolith inferred from colluvium(continued)April 2010–Draft EPA document.C-2-9
Appendix CAttachment C-2: Hydrogeologic EnvironmentHydrogeologic SettingHydrogeologic Environment (continued)Hydrogeologic EnvironmentPlant Code Description Code Description PercentageCommentHoot Lake 9E Outwash 8 Outwash 100 Based on productive aquifer, soils, surficialgeologyHugo 6Da Alternating Sandstone,Limestone and Shale - ThinSoilHugo 6Fa River Alluvium WithOverbank DepositsHunter 4B Consolidated SedimentaryRockHuntington 4B Consolidated SedimentaryRock2 Bedded Sedimentary Rock 40 Percentage based on surficial geology;soil/regolith thickness inferred from Heath(1985)6 River Valleys and Floodplainswith Overbank DepositIntermountain 2E Playa Lakes 5 Alluvial Basins Valleys andFans60 Percentage based on surficial geology; finesoils with about 10% SNL2 Bedded Sedimentary Rock 100 Setting based on aquifer and surficialgeology coverages2 Bedded Sedimentary Rock 100 Setting based on aquifer and surficialgeology coverages100 Setting based on surficial geology coverage,Heath (1985)J H Campbell 7F Glacial Lake Deposits 4 Sand and Gravel 100 Based on surficial geology, soilsJ M Stuart 6E Solution Limestone 12 Solution Limestone 50 Percentage based on surficial geology; low(< 2%) SNLJ M Stuart 6Fa River Alluvium WithOverbank Deposits6 River Valleys and Floodplainswith Overbank Deposit50 Percentage based on surficial geology; low(< 2%) SNLJ R Whiting 7F Glacial Lake Deposits 4 Sand and Gravel 100 Based on surficial geologyJackMcDonough8C Mountain Flanks 2 Bedded Sedimentary Rock 100 Assigned based on predominant surficialgeology (94% stony colluvium onmetamorphic rocks; less silt and clay than incolluvium over limestone)Jack Watson 10Ab Unconsolidated and Semi-Consolidated ShallowSurficial AquiferJames H MillerJr6DaAlternating Sandstone,Limestone and Shale - ThinSoil10 Unconsolidated andSemiconsolidated ShallowAquifers100 Based on all coverages2 Bedded Sedimentary Rock 20 Percentage based on surficial geology; soilshave significant fines (SCL+SLT > 25%)(continued)April 2010–Draft EPA document.C-2-10
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This draft document has been prepar
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CCWTable of ContentsTable of Conten
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CCWTable of ContentsList of Figures
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CCWTable of Contents4-22. Summary o
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CCWList of AcronymsAcronymDefinitio
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CCWList of AcronymsApril 2010-Draft
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Executive SummaryHuman and Ecologic
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Section 1.0Introduction1.0 Introduc
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Section 1.0Introduction1.3.2 Exposu
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Section 1.0IntroductionThis methodo
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Section 1.0Introduction1.4 Document
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Section 2.0Problem Formulationdata
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Section 2.0Problem FormulationTable
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Section 2.0Problem Formulationsmall
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Section 2.0Problem FormulationFigur
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Section 2.0Problem Formulationonsit
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Section 2.0Problem Formulation2.3 S
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Section 2.0Problem Formulationand C
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Section 2.0Problem Formulationof dr
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Section 3.0Analysisscale analysis.
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Section 3.0Analysis• The RfD is a
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Section 3.0Analysis3.1.2 Ecological
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Section 3.0AnalysisEcological Risk
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Section 3.0Analysisfor the screenin
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Section 3.0AnalysisTable 3-5. Scree
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Section 3.0Analysisapproximately 30
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Section 3.0Analysisthose input file
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Section 3.0AnalysisCCW Waste TypesC
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Section 3.0Analysis• An in-depth
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Section 3.0Analysisused to determin
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Section 3.0Analysisconsolidation. A
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Section 3.0Analysis3.4.4 Model Outp
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Section 3.0Analysisclogged region o
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Section 3.0Analysissurface impoundm
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Section 3.0Analysisobtained from a
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Section 3.0AnalysisIn the saturated
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Section 3.0Analysis• The receptor
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Section 3.0Analysissediment and por
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Section 3.0AnalysisTable 3-11. Alum
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Section 3.0Analysischild was aged f
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Section 3.0Analysisa per kilogram b
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Section 3.0AnalysisNoncancer risk w
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Section 4.0Risk Characterization4.0
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Section 4.0Risk CharacterizationNot
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Section 4.0Risk Characterization90t
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Section 4.0Risk Characterizationbas
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Section 4.0Risk CharacterizationZer
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Section 4.0Risk Characterization4.1
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Section 4.0Risk Characterizationund
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Section 4.0Risk CharacterizationLin
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Section 4.0Risk CharacterizationRis
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Section 4.0Risk CharacterizationTab
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Section 4.0Risk CharacterizationThe
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Section 4.0Risk Characterizationin
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Section 4.0Risk Characterizationand
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Section 4.0Risk Characterizationdis
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Section 4.0Risk Characterizationana
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Section 4.0Risk Characterizationmay
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Section 4.0Risk Characterizationval
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Section 4.0Risk Characterizationars
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Section 4.0Risk Characterizationwas
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Section 4.0Risk Characterizationche
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Section 4.0Risk CharacterizationMer
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Section 4.0Risk CharacterizationWat
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Section 4.0Risk CharacterizationEPA
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Section 4.0Risk CharacterizationEco
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Section 4.0Risk Characterization•
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Section 4.0Risk Characterization•
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Section 5.0ReferencesFinkelman, R.B
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Section 5.0ReferencesU.S. EPA (Envi
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Section 5.0Referenceshttp://www.epa
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Section 5.0ReferencesDisposal of Co
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Appendix AConstituent DataA.1 Data
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Appendix AConstituent DataA.2.1 Sel
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Appendix AConstituent Data2. Select
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Appendix AAttachment A-1: Sources o
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April 2010-Draft EPA document.[This
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Appendix AAttachment A-2: CCW Const
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Appendix A Attachment A-3Table A-3-
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Appendix A Attachment A-3Cr IIIHgAg
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Appendix A Attachment A-3NO3CNCd, C
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Appendix BWaste Management UnitsWas
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Appendix BWaste Management Units•
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Appendix BWaste Management Units(e.
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Log(capacity, cubic yards)Log(area,
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Appendix BWaste Management UnitsB.7
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Appendix BAttachment B-1: CCW Dispo
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Appendix BAttachment B-1: CCW Dispo
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Appendix BAttachment B-2: CCW WMU D
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Appendix BAttachment B-2: CCW WMU D
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Page 257 and 258: Appendix CSite DataFigure C-2. EPAC
Page 259 and 260: Appendix CSite DataEPACMTP Climate
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Page 265 and 266: Appendix CSite DataHydrologicRegion
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Appendix EAttachment E-1: Surface W
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Appendix EAttachment E-2: Fish Conc
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Appendix EAttachment E-3: Intake Ra
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Appendix FHuman Exposure Factorswer
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Appendix FHuman Exposure FactorsBec
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Appendix FHuman Exposure FactorsF.1
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Appendix GHuman Health BenchmarksG.
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Appendix GHuman Health BenchmarksHu
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Appendix GHuman Health BenchmarksU.
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Appendix HEcological BenchmarksRisk
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Appendix HEcological BenchmarksH.1.
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Appendix HEcological BenchmarksCons
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Appendix HEcological BenchmarksU.S.
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Appendix ICalculation of Health-Bas
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Appendix JChemical-Specific Inputs
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Appendix JChemical-Specific Inputs
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Appendix KScreening Analysis Result
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Appendix LTime to Peak Concentratio
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