Human Health Risk Assessment - Raytheon

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DRAFT Primary Primary Secondary Secondary Source Release Mechanism Source Release Mechanism Ground Water Plume Drafted by: Volatilization through Vadose Zone Contact with Soil Legend pathway � principal pathway for quantitative evaluation o pathway for qualitative evaluation -- incomplete pathway Date: 5/30/08 Indoor Air Outdoor Air (vapor) Digging Trench Groundwater in Trench Subsurface Soil Volatilization Excavation Activities Media Affected Indoor Air Outdoor Air Outdoor Air (trench) Exposure Facility Onsite Construction Utility Route Worker Landscaper Worker Worker Tresspasser Inhalation � -- -- -- -- Inhalation -- � o o � Inhalation -- -- � � -- ` Groundwater Dermal Absorption -- -- � � -- (trench) Soil Ingestion -- -- � � -- Dermal Absorption -- -- o o -- Inhalation -- -- o o -- Potential Exposure Pathways Under Current Use Scenarios – On-Site Receptors <strong>Raytheon</strong> Company Facility, St Petersburg, FL Onsite Receptors FIGURE 1
DRAFT Primary Primary Secondary Secondary Media Source Release Mechanism Source Release Mechanism Affected Ground Water Plume Volatilization Pumping Well Groundwater Migration Indoor Air Outdoor Air (vapor) Irrigation Water Surface Water Digging Trench Groundwater in Trench Subsurface Soil Deposition Plant Uptake Volatilization Excavation Activities Surface Soil Homegrown Produce Offsite Receptors Exposure Offsite Construction Other Route Resident † Worker Offsite* Inhalation -- -- -- Inhalation -- -- -- Inhalation � -- -- Ingestion � -- Dermal Absorption � -- Ingestion � -- Dermal Absorption o -- Inhalation o -- Ingestion � -- Ingestion � -- Dermal Absorption � -- Inhalation -- � -- ` Groundwater Dermal Absorption -- � -- (trench) Ingestion -- � -- Dermal Absorption -- o -- Inhalation -- o -- Legend Notes pathway † Offsite resident includes children exposed to irrigation water in a wading pool or by sprinklers. � principal pathway for quantitative evaluation * Other offsite receptors include: Pinellas Trail users, Azalea Park ball players, Workers at the Azalea o pathway for qualitative evaluation Park recreation center, Azalea Park Groundskeepers, and Apartment/Condominium landscapers -- incomplete pathway FIGURE Potential Exposure Pathways Under Current Use Scenarios – Off-Site Receptors 2 Drawn By: Date: 5/30/08 <strong>Raytheon</strong> Company Facility, St Petersburg, FL Indoor Air Outdoor Air (vapor intrusion) Outdoor Air (irrigation) Irrigation Water Surface Water Outdoor Air (trench) Soil 2512243G
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DRAFT Human Health Risk Assessment
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ii Human Health Risk Assessment DRA
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Executive Summary 1 Human Health Ri
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3 Human Health Risk Assessment DRAF
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2 Conceptual Site Model 7 Human Hea
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11 Human Health Risk Assessment DRA
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3.2.3 Ambient Air Sampling 15 Human
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• Inhalation of Outdoor Air On-Si
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u = Wind speed (m/s) 23 Human Healt
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Page 33 and 34: EPCa = Exposure point concentration
Page 35 and 36: where: DAD = Dermal absorbed dose (
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Page 41 and 42: non-carcinogenic effects (µg/L) Ri
Page 45 and 46: 5 Toxicity Assessment 41 Human Heal
Page 53 and 54: Potential Risks to On-Site Construc
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Page 59 and 60: 7 Uncertainty Analysis 55 Human Hea
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Page 69 and 70: DRAFT Table 1. Constituents of Pote
Page 71 and 72: DRAFT Table 3. Comparison Between I
Page 73 and 74: DRAFT Table 5. Estimated Exposure P
Page 75 and 76: DRAFT Table 6. Summary of Exposure
Page 77 and 78: DRAFT Table 8. Source and Derivatio
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Page 83 and 84: DRAFT Table A-1. Dose and Risk Calc
Page 89 and 90: DRAFT CSFd RfDd DA event C w DAD LA
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Page 95: DRAFT Table A-13. Dose and Risk Cal
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Human Health Risk Assessment - Raytheon

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