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e <br /> CHEMICAL PRIMARY PRIMARY TRANSPORT SECONDARY EXPOSURE POTENTIALLY EXPOSED <br /> SOURCE RELEASE IMPACTED MECHANISM IMPACTED ROUTE RECEPTOR POPULATION <br /> MECHANISM MEDIUM MEDIUM <br /> a <br /> NOTES: .. <br /> (a) A industrial scenario was evaluated. _N £ y Yn `v .o S <br /> (b) No viable habitat is available;therefore,exposure to ecological Oe oa tL Yo` Cl <br /> 3 P <br /> receptors is considered incomplete. = w <br /> (e) Groundwater at the site will not be used as a drinking water source.In <br /> addition,the migration of volatile organic chemicals,even if defected . <br /> in groundwater,is accounted for using the soil gas and soil data in the Indoor Ali Inhalation <br /> fate and transport models.As such,groundwater exposure is not <br /> evaluated. Volatilization <br /> Outdoor Air Inhalation ■ <br /> Outdoor Air Inhalation ■ <br /> Erosion/ <br /> Historical Use of Stockpile Fugitive Dust <br /> of ASW, Shredder, Lube Accidental Dermal Contact . <br /> oil/Waste oil,Storage Spills and/or Soil Direct Contact with Soil <br /> Shed, Equipment Wash Leakage . <br /> Down Area, Shop, USTs Incidental Ingestion <br /> and Welding Shop <br /> Indoor Air Inhalation <br /> LEGEND: Volatilization <br /> Complete exposure pathway which will be quantitatively Leaching/ Dermal Contact ❑ <br /> . evaluated in the risk assessment <br /> Infiltration Groundwater(c) <br /> Incomplete exposure pathway;no evaluation necessary Percolation El El <br /> Ingestion <br /> DRAWN BY: <br /> 1010FDCN <br /> M/LEER BROOKS <br /> cc !7 DATE: CONCEPTUAL SITE MODEL <br /> 08/03/10 APPENDIX <br /> Gotvl7aK�t2C�G�. /t2G. <br /> REVISED BY: <br /> DCN <br /> REVISED` THE LEARNER COMPANY B <br /> 2124 MAIN STREET, SUITE 200 <br /> 08/03/10 2711 NAVY DRIVE <br /> HUNTINGBEACH, CA. 92648 APPROVED BY: <br /> (71 STOCKTON, CA <br /> (714) 500-5400 Jg <br /> DATE: PATH: K:\721 LEARNER\ <br /> PROJECT NO. 01-721-0001-3 108/03/10 FILE: APPENDIX B_CONCEPT..DWC TAB: [B)DATE PLOTTED: 08/03/10 <br />