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TABLE 8 <br /> NON-CANCER REFERENCE DOSES <br /> FORMER VERNALIS PUMP STATION <br /> Vernalis,San Joaquin and Stanislaus Counties,California <br /> Oral RfD Inhalation RfD <br /> COPC in Soil (mg/kg-day) Source (mg/kg-day) Source <br /> BTEX <br /> Toluene 8.0E-02 IRIS 8.6E-02 OEHHAI <br /> Ethylbenzene 1.0E-01 IRIS 5.7E-01 OEHHAI <br /> Xylene(s) 2.0E-01 IRIS 2.0E-01 OEHHAI <br /> PAHs <br /> Acenaphthene 6.0E-02 IRIS 6.0E-02 IRIS <br /> Benzo(a)anthracene NA IRIS NA IRIS <br /> Benzo(a)pyrene NA IRIS NA IRIS <br /> Benzo(b)fluoranthene NA IRIS NA IRIS <br /> Benzo(g,h,i)perylene NA IRIS NA IRIS <br /> Benzo(k)fluoranthene NA IRIS NA IRIS <br /> Chrysene NA IRIS NA IRIS <br /> Dibenz(a,h)anthracene NA IRIS NA IRIS <br /> Fluoranthene 4.0E-02 IRIS 4.0E-02 IRIS <br /> Fluorene 4.0E-02 IRIS 4.0E-02 IRIS <br /> Indeno(1,2,3-ed)pyrene NA IRIS NA IRIS <br /> Naphthalene 2.0E-02 IRIS 2.6E-03 OEHHA1 <br /> Phenanthrene NA IRIS NA IRIS <br /> Pyrene 3.0E-02 IRIS 3.0E-02 IRIS <br /> Abbreviations: <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> Cal/EPA=California Environmental Protection Agency <br /> COPC=Constituent of potential concern <br /> EPA=United States Environmental Protection Agency <br /> IRIS=Integrated Risk Information System <br /> kg=Kilogram <br /> m'=Cubic meter <br /> mg=Milligram <br /> mg/kg-day=Milligrams per kilogram per day <br /> NA=Not available or not applicable <br /> OEHHA=Office of Environmental Health Hazard Assessment <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> REL=Reference Exposure Level <br /> RfD=Reference Dose <br /> lig =Microgram <br /> gg/m3 =Micrograms per cubic meter <br /> Notes: <br /> 1. Chronic REL converted to RID by multiplying REL(gghr')by(1 mg/1000 Pg*20 m'/day*1/70 kg). <br /> 2. Consistent with PEA Guidance Manual,if no inhalation RfD was available the oral RfD was used. <br /> Sources: <br /> IRIS information from the EPA on-line database(July 2010). <br /> OEHHA information from the Cal/EPA on-line Toxicity Criteria Database(July 2010). <br /> The Benham Companies,LLC <br /> �rji` A Wholly Ohwwd SuMldlary <br /> Page 1 of I Fran,Sowxe id So dw <br />