Human and Ecological Risk Assessment - Earthjustice

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Appendix ICalculation of Health-Based Numbers (HBNs) for CCW Constituent ScreeningI.2 Health-Based NumbersTable I-3 provides the HBNs for surface water and groundwater.ChemicalTable I-3. Groundwater and Surface Water HBNsBenchmark TypeGroundwater HBN Surface Water HBN 2(mg/L) 1 (mg/L)Aluminum Noncancer 29.4 NAAntimony Noncancer 0.012 NAArsenic Cancer 0.0029 0.23Arsenic Noncancer 0.0088 0.71Barium Noncancer 5.89 NABeryllium Noncancer 0.059 1.0Boron Noncancer 5.87 NACadmium Noncancer 0.015 0.035Chromium (III) Noncancer 44 23,700Chromium (VI) Noncancer 0.088 47Cobalt Noncancer 0.0088 NACopper 3 Noncancer (GW)/AWQ (SW) 0.29 1.3Cyanide Noncancer 0.59 NAFluoride Noncancer 3.52 NALead MCL 0.015 NAManganese Noncancer 1.4 NAMercury Noncancer 0.0088 3.85E-06Molybdenum Noncancer 0.147 12Nickel Noncancer 0.59 237Nitrate MCL 10 NANitrate Noncancer 47 NANitrite Noncancer 2.9 NASelenium Noncancer 0.147 0.038Silver Noncancer 0.147 NAStrontium Noncancer 17.6 NAThallium Noncancer 0.0024 0.008Vanadium Noncancer 0.21 NAZinc Noncancer 8.8 8.131 Based on domestic drinking water ingestion.2 Based on fish consumption by a recreational fisher.3 Fish bioconcentration factor values for copper are zero. HBN based on National Ambient Water Quality Criteria.AWQ = National Ambient Water Quality CriteriaMCL = maximum contaminant level or drinking water action level (for lead and copper)NA = not availableApril 2010–Draft EPA document. I-3
Appendix ICalculation of Health-Based Numbers (HBNs) for CCW Constituent ScreeningTable I-4. Concentration in Fish at Different Trophic Levels (mg/kg)Cfish_TFor Mercury:CfishT Cdiss BCF TCdiss 0 . 05 CwtFor NonvolatileMetals:CfishT Cwt BCF TName Description ValueCdiss Concentration in surface water (dissolved) (mg/L) CalculatedCwt Concentration in surface water (total) (mg/L) Set equal to 1 for HBN calculation0.05 Fraction of total mercury as dissolved methyl mercury Derived from U.S. EPA, 1997aBCF_T3F Bioconcentration factor for trophic level 3, fish filet (L/kg) Chemical-specific (see App. J)BCF_T3W Bioconcentration factor for trophic level 3, fish whole (L/kg) Chemical-specific (see App. J)BCF_T4F Bioconcentration factor for trophic level 4, fish filet (L/kg) Chemical-specific (see App. J)BCF_T4W Bioconcentration factor for trophic level 4, fish whole (L/kg) Chemical-specific (see App. J)Source: U.S. EPA, 1998a.Table I-5. Daily Intake of Contaminant from Consumption of Fish (mg/kg BW/day)IfishCfish F3 CfishTT3F FT4 CfishT 4FIfishCfishTCRfishFfish1,000 BWName Description Value1000 Conversion factor (g/kg)C_fishT3F Concentration of contaminant in fish at different trophic levels (mg/kg) Calculated (Table I-4)C_fishT4F Concentration of contaminant in fish at different trophic levels (mg/kg) Calculated (Table I-4)Cfish T Concentration of contaminant in fish (mg/kg) Calculated (Table I-4)BW Body weight (kg) Age-cohort-specific (Table I-9)CR_fish Consumption rate of fish (g WW/day) Age-cohort-specific (Table I-9)F_fish Fraction of fish intake from contaminated source (unitless) 1 (protective value)F_T3 Fraction of trophic level 3 intake (unitless) 0.36 (U.S. EPA, 1997d)F_T4 Fraction of trophic level 4 intake (unitless) 0.64 (U.S. EPA, 1997d)Source: U.S. EPA, 1998a.April 2010–Draft EPA document. I-4
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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 Characterization4.1
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Section 4.0Risk Characterizationund
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Section 4.0Risk Characterizationdis
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Section 4.0Risk Characterizationwas
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Section 4.0Risk CharacterizationMer
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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 CSite DataWMU and the wate
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Appendix CSite DataFigure C-1. Exam
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Appendix CSite Dataeach site, eithe
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Appendix CSite DataBecause EPACMTP
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Appendix CSite DataHydrogeologic Se
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Appendix CSite DataFigure C-2. EPAC
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Appendix CSite DataEPACMTP Climate
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Appendix CSite DataRF1 Reach Types
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Appendix CSite DataTable C-9. Regio
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Appendix CSite DataHydrologicRegion
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Appendix CSite DataClawges, R.M., a
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Appendix CAttachment C-1: Soil Data
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Appendix CAttachment C-2: Hydrogeol
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Appendix CAttachment C-3: Climate C
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Appendix CAttachment C-4: Waterbody
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Appendix DMINTEQA2 Nonlinear Sorpti
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Page 373 and 374: Appendix HEcological BenchmarksRisk
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Page 389 and 390: Appendix JChemical-Specific Inputs
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Page 393 and 394: Appendix KScreening Analysis Result
Page 399 and 400: Appendix LTime to Peak Concentratio
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