Ground Water Screening Level (GWSL) 1,2 ug/l TCR = 1.0E-05/HQ =0.2. Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2.

Transcription

1 Note: The non-residential screening level below or site specific screening concentrations (utilizing site specific attenuation and exposure factors) can be used. In either case the site s remedy must include land use restrictions approved by the Division. For some non-residential structures (such as buildings with basements, or where building characteristics are similar to residential buildings, and building use does not promote high air exchange), the Residential Vapor Vapor Intrusion Screening Level table should be used. CAS No. Contaminant Ground Water Screening Level (GWSL) 1,2 ug/l Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 Indoor Air and Crawlspace Screening Concentration (IASL) 1,2 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present Attenuation Factor (AF) = Attenuation Factor (AF)= IASL (A) IASL (B) IASL (C) GWSL=IASL (B) x 1/Henry's TCR = 1.0E-06 TCR = 1.0E-05 TCR = 1.0E-04 SGSL =IASL (B) x 1/AF Cgw&Csg Constant x 1/AF Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis Acetaldehyde 2.89E E+02 NC 5.57E+00 C 7.88E+00 NC 7.88E+00 NC Acetone 1.90E E+06 NC 2.72E+04 NC 2.72E+04 NC 2.72E+04 NC Acetonitrile 3.73E E+03 NC 5.26E+01 NC 5.26E+01 NC 5.26E+01 NC Acrolein 3.51E E+00 NC 1.75E-02 NC 1.75E-02 NC 1.75E-02 NC Acrylic Acid 5.80E E+01 NC 8.76E-01 NC 8.76E-01 NC 8.76E-01 NC Acrylonitrile 3.11E E+02 NC 1.80E-01 C 1.75E+00 NC 1.75E+00 NC Aldrin 1.39E E+00 C 2.50E-03 C 2.50E-02 C 2.50E-01 C Allyl Alcohol 4.29E E+00 NC 8.76E-02 NC 8.76E-02 NC 8.76E-02 NC Allyl Chloride 1.95E E+01 NC 8.76E-01 NC 8.76E-01 NC 8.76E-01 NC Ammonia 1.33E E+03 NC 8.76E+01 NC 8.76E+01 NC 8.76E+01 NC Amyl Alcohol, tert- 4.66E E+02 NC 2.63E+00 NC 2.63E+00 NC 2.63E+00 NC Aroclor 1016 Not sufficiently toxic or volatile 6.13E+02 C 6.13E-01 C 6.13E+00 C 6.13E+01 C Aroclor E E+01 C 2.15E-02 C 2.15E-01 C 2.15E+00 C Aroclor E E+01 C 2.15E-02 C 2.15E-01 C 2.15E+00 C Aroclor E E+01 C 2.15E-02 C 2.15E-01 C 2.15E+00 C Aroclor E E+01 C 2.15E-02 C 2.15E-01 C 2.15E+00 C Aroclor E E+01 C 2.15E-02 C 2.15E-01 C 2.15E+00 C Aroclor 1260 Not sufficiently toxic or volatile 2.15E+01 C 2.15E-02 C 2.15E-01 C 2.15E+00 C Azobenzene Not sufficiently toxic or volatile 3.96E+02 C 3.96E-01 C 3.96E+00 C 3.96E+01 C Not sufficiently toxic or volatile Benz[a]anthracene Not sufficiently toxic or volatile Not sufficiently toxic or volatile 1.11E-01 C,M 1.11E+00 C,M Benzene 6.93E E+03 C 1.57E+00 C 1.57E+01 C 2.63E+01 NC Benzyl Chloride 5.20E E+01 NC 2.50E-01 C 8.76E-01 NC 8.76E-01 NC Biphenyl, 1,1'- 2.78E E+01 NC 3.50E-01 NC 3.50E-01 NC 3.50E-01 NC Bis(2-chloroethyl)ether 5.35E E+01 C 3.72E-02 C 3.72E-01 C 3.72E+00 C Bis(chloromethyl)ether 1.11E E-01 C 1.98E-04 C 1.98E-03 C 1.98E-02 C Boron Trichloride No Solubility 1.75E+03 NC 1.75E+01 NC 1.75E+01 NC 1.75E+01 NC Boron Trifluoride No Henrys Law Constant 1.14E+03 NC 1.14E+01 NC 1.14E+01 NC 1.14E+01 NC Bromo-2-chloroethane, E E+01 C 2.04E-02 C 2.04E-01 C 2.04E+00 C

2 CAS No. Contaminant Ground Water Screening Level (GWSL) 1,2 ug/l Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 Indoor Air and Crawlspace Screening Concentration (IASL) 1,2 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present Attenuation Factor (AF) = Attenuation Factor (AF)= IASL (A) IASL (B) IASL (C) GWSL=IASL (B) x 1/Henry's TCR = 1.0E-06 TCR = 1.0E-05 TCR = 1.0E-04 SGSL =IASL (B) x 1/AF Cgw&Csg Constant x 1/AF Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis Bromobenzene 5.20E E+03 NC 5.26E+01 NC 5.26E+01 NC 5.26E+01 NC Bromochloromethane 5.87E E+03 NC 3.50E+01 NC 3.50E+01 NC 3.50E+01 NC Bromodichloromethane 3.82E E+02 C 3.31E-01 C 3.31E+00 C 3.31E+01 C Bromoform 5.10E E+04 C 1.11E+01 C 1.11E+02 C 1.11E+03 C Bromomethane 1.46E E+02 NC 4.38E+00 NC 4.38E+00 NC 4.38E+00 NC Butadiene, 1,3-5.82E E+02 NC 4.09E-01 C 1.75E+00 NC 1.75E+00 NC Butyl alcohol, sec- 7.10E E+06 NC 2.63E+04 NC 2.63E+04 NC 2.63E+04 NC Carbon Disulfide 1.04E E+04 NC 6.13E+02 NC 6.13E+02 NC 6.13E+02 NC Carbon Tetrachloride 1.81E E+03 C 2.04E+00 C 2.04E+01 C 8.76E+01 NC Carbonyl Sulfide 3.51E E+03 NC 8.76E+01 NC 8.76E+01 NC 8.76E+01 NC Chlordane Not sufficiently toxic or volatile 6.13E+01 NC 1.23E-01 C 6.13E-01 NC 6.13E-01 NC Chlorine 2.75E E+01 NC 1.31E-01 NC 1.31E-01 NC 1.31E-01 NC Chlorine Dioxide No Solubility 1.75E+01 NC 1.75E-01 NC 1.75E-01 NC 1.75E-01 NC Chloro-1,1-difluoroethane, E E+06 NC 4.38E+04 NC 4.38E+04 NC 4.38E+04 NC Chloro-1,3-butadiene, E E+01 C 4.09E-02 C 4.09E-01 C 4.09E+00 C Chlorobenzene 3.44E E+03 NC 4.38E+01 NC 4.38E+01 NC 4.38E+01 NC Chlorobenzotrifluoride, E E+04 NC 2.63E+02 NC 2.63E+02 NC 2.63E+02 NC Chlorodifluoromethane 2.64E E+06 NC 4.38E+04 NC 4.38E+04 NC 4.38E+04 NC Chloroform 3.55E E+02 C 5.33E-01 C 5.33E+00 C 5.33E+01 C Chloromethane 2.19E E+03 NC 7.88E+01 NC 7.88E+01 NC 7.88E+01 NC Chloromethyl Methyl Ether 1.43E E+01 C 1.78E-02 C 1.78E-01 C 1.78E+00 C Chloropicrin 4.18E E+01 NC 3.50E-01 NC 3.50E-01 NC 3.50E-01 NC Cumene 7.45E E+04 NC 3.50E+02 NC 3.50E+02 NC 3.50E+02 NC Cyanide (CN-) 7.08E E+01 NC 7.01E-01 NC 7.01E-01 NC 7.01E-01 NC Cyclohexane 8.57E E+05 NC 5.26E+03 NC 5.26E+03 NC 5.26E+03 NC Cyclohexanone 1.67E E+04 NC 6.13E+02 NC 6.13E+02 NC 6.13E+02 NC Cyclohexene 4.71E E+04 NC 8.76E+02 NC 8.76E+02 NC 8.76E+02 NC DDE, p,p'- Not sufficiently toxic or volatile Not sufficiently toxic or volatile C 1.26E-01 C 1.26E+00 C 1.26E+01 C Dibromo-3-chloropropane, 1,2-3.40E E+00 C,M 2.04E-03 C,M 2.04E-02 C,M 1.75E-01 NC Dibromoethane, 1,2-7.69E E+01 C 2.04E-02 C 2.04E-01 C 2.04E+00 C Dibromomethane (Methylene Bromide) 1.04E E+02 NC 3.50E+00 NC 3.50E+00 NC 3.50E+00 NC Dichloro-2-butene, 1,4-8.39E E+00 C 2.92E-03 C 2.92E-02 C 2.92E-01 C Dichloro-2-butene, cis-1,4-1.08e E+00 C 2.92E-03 C 2.92E-02 C 2.92E-01 C Dichloro-2-butene, trans-1,4-1.08e E+00 C 2.92E-03 C 2.92E-02 C 2.92E-01 C Dichlorobenzene, 1,2-2.23E E+04 NC 1.75E+02 NC 1.75E+02 NC 1.75E+02 NC

3 CAS No. Contaminant Ground Water Screening Level (GWSL) 1,2 ug/l Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 Indoor Air and Crawlspace Screening Concentration (IASL) 1,2 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present Attenuation Factor (AF) = Attenuation Factor (AF)= IASL (A) IASL (B) IASL (C) GWSL=IASL (B) x 1/Henry's TCR = 1.0E-06 TCR = 1.0E-05 TCR = 1.0E-04 SGSL =IASL (B) x 1/AF Cgw&Csg Constant x 1/AF Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis Dichlorobenzene, 1,4-1.13E E+03 C 1.11E+00 C 1.11E+01 C 1.11E+02 C Dichlorodifluoromethane 6.25E E+03 NC 8.76E+01 NC 8.76E+01 NC 8.76E+01 NC Dichloroethane, 1,1-3.34E E+03 C 7.67E+00 C 7.67E+01 C 7.67E+02 C Dichloroethane, 1,2-9.78E E+02 C 4.72E-01 C 4.72E+00 C 6.13E+00 NC Dichloroethylene, 1,1-1.64E E+04 NC 1.75E+02 NC 1.75E+02 NC 1.75E+02 NC Dichloropropane, 1,2-3.04E E+02 NC 1.23E+00 C 3.50E+00 NC 3.50E+00 NC Dichloropropene, 1,3-1.21E E+03 NC 3.07E+00 C 1.75E+01 NC 1.75E+01 NC Dicyclopentadiene 1.03E E+01 NC 2.63E-01 NC 2.63E-01 NC 2.63E-01 NC Difluoroethane, 1,1-4.22E E+06 NC 3.50E+04 NC 3.50E+04 NC 3.50E+04 NC Dihydrosafrole 1.89E E+02 C 9.43E-01 C 9.43E+00 C 9.43E+01 C Diisopropyl Ether 5.86E E+04 NC 6.13E+02 NC 6.13E+02 NC 6.13E+02 NC Dimethylformamide 8.70E E+03 NC 2.63E+01 NC 2.63E+01 NC 2.63E+01 NC Dimethylhydrazine, 1,1-3.32E E-01 NC 1.75E-03 NC 1.75E-03 NC 1.75E-03 NC Dimethylhydrazine, 1,2-2.70E E-02 C 7.67E-05 C 7.67E-04 C 7.67E-03 C Dimethylvinylchloride 2.12E E+02 C 9.43E-01 C 9.43E+00 C 9.43E+01 C Dioxane, 1,4-1.25E E+03 C 2.45E+00 C 2.45E+01 C 2.63E+01 NC Epichlorohydrin 7.05E E+01 NC 8.76E-01 NC 8.76E-01 NC 8.76E-01 NC Epoxybutane, 1,2-2.38E E+03 NC 1.75E+01 NC 1.75E+01 NC 1.75E+01 NC Ethoxyethanol Acetate, E E+03 NC 5.26E+01 NC 5.26E+01 NC 5.26E+01 NC Ethoxyethanol, E E+04 NC 1.75E+02 NC 1.75E+02 NC 1.75E+02 NC Ethyl Acetate 1.12E E+03 NC 6.13E+01 NC 6.13E+01 NC 6.13E+01 NC Ethyl Acrylate 5.06E E+02 NC 7.01E+00 NC 7.01E+00 NC 7.01E+00 NC Ethyl Chloride (Chloroethane) 1.93E E+05 NC 8.76E+03 NC 8.76E+03 NC 8.76E+03 NC Ethyl Methacrylate 1.12E E+04 NC 2.63E+02 NC 2.63E+02 NC 2.63E+02 NC Ethylbenzene 1.52E E+03 C 4.91E+00 C 4.91E+01 C 4.91E+02 C Ethylene Oxide 2.30E E+02 C 1.39E-01 C 1.39E+00 C 1.39E+01 C Ethyleneimine 1.30E E-01 C 6.45E-04 C 6.45E-03 C 6.45E-02 C Formaldehyde 6.22E E+02 NC 9.43E-01 C 8.58E+00 NC 8.58E+00 NC Formic Acid 3.85E E+01 NC 2.63E-01 NC 2.63E-01 NC 2.63E-01 NC Furfural 2.84E E+03 NC 4.38E+01 NC 4.38E+01 NC 4.38E+01 NC Glycidyl 4.19E E+01 NC 8.76E-01 NC 8.76E-01 NC 8.76E-01 NC Heptachlor 7.85E E+00 C 9.43E-03 C 9.43E-02 C 9.43E-01 C Heptachlor Epoxide 5.49E E+00 C 4.72E-03 C 4.72E-02 C 4.72E-01 C Heptachlorobiphenyl, 2,3,3',4,4',5,5'- (PCB 189) Not sufficiently toxic or volatile Not sufficiently toxic or volatilec 1.11E-02 C 1.11E-01 C 1.11E+00 C Hexachlorobenzene 3.84E E+01 C 2.67E-02 C 2.67E-01 C 2.67E+00 C

4 CAS No. Contaminant Ground Water Screening Level (GWSL) 1,2 ug/l Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 Indoor Air and Crawlspace Screening Concentration (IASL) 1,2 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present Attenuation Factor (AF) = Attenuation Factor (AF)= IASL (A) IASL (B) IASL (C) GWSL=IASL (B) x 1/Henry's TCR = 1.0E-06 TCR = 1.0E-05 TCR = 1.0E-04 SGSL =IASL (B) x 1/AF Cgw&Csg Constant x 1/AF Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis Hexachlorobiphenyl, 2,3,3',4,4',5- (PCB 156) Not sufficiently toxic or volatile 1.11E+01 C 1.11E-02 C 1.11E-01 C 1.11E+00 C Hexachlorobiphenyl, 2,3,3',4,4',5'- (PCB 157) Not sufficiently toxic or volatile 1.11E+01 C 1.11E-02 C 1.11E-01 C 1.11E+00 C Hexachlorobiphenyl, 2,3',4,4',5,5'- (PCB 167) Not sufficiently toxic or volatile 1.11E+01 C 1.11E-02 C 1.11E-01 C 1.11E+00 C Hexachlorobiphenyl, 3,3',4,4',5,5'- (PCB 169) 3.98E E-02 C 1.11E-05 C 1.11E-04 C 1.11E-03 C Hexachlorobutadiene 1.32E E+02 C 5.57E-01 C 5.57E+00 C 5.57E+01 C Hexachlorocyclopentadiene 1.59E E+01 NC 1.75E-01 NC 1.75E-01 NC 1.75E-01 NC Hexachloroethane 7.01E E+03 C 1.11E+00 C 1.11E+01 C 2.63E+01 NC Hexamethylene Diisocyanate, 1,6-4.46E E-01 NC 8.76E-03 NC 8.76E-03 NC 8.76E-03 NC Hexane, N- 8.33E E+04 NC 6.13E+02 NC 6.13E+02 NC 6.13E+02 NC Hexanone, E E+03 NC 2.63E+01 NC 2.63E+01 NC 2.63E+01 NC Hydrazine 1.00E E+00 C 2.50E-03 C 2.50E-02 C 2.63E-02 NC Hydrogen Chloride 2.10E E+03 NC 1.75E+01 NC 1.75E+01 NC 1.75E+01 NC Hydrogen Cyanide 1.29E E+01 NC 7.01E-01 NC 7.01E-01 NC 7.01E-01 NC Hydrogen Fluoride 2.88E E+03 NC 1.23E+01 NC 1.23E+01 NC 1.23E+01 NC Hydrogen Sulfide 5.01E E+02 NC 1.75E+00 NC 1.75E+00 NC 1.75E+00 NC Isopropanol 5.29E E+04 NC 1.75E+02 NC 1.75E+02 NC 1.75E+02 NC Mercury (elemental) 7.47E E+01 NC 2.63E-01 NC 2.63E-01 NC 2.63E-01 NC Methacrylonitrile 2.60E E+03 NC 2.63E+01 NC 2.63E+01 NC 2.63E+01 NC Methanol 9.42E E+06 NC 1.75E+04 NC 1.75E+04 NC 1.75E+04 NC Methoxyethanol Acetate, E E+01 NC 8.76E-01 NC 8.76E-01 NC 8.76E-01 NC Methoxyethanol, E E+03 NC 1.75E+01 NC 1.75E+01 NC 1.75E+01 NC Methyl Acrylate 2.15E E+03 NC 1.75E+01 NC 1.75E+01 NC 1.75E+01 NC Methyl Ethyl Ketone (2-Butanone) 1.88E E+05 NC 4.38E+03 NC 4.38E+03 NC 4.38E+03 NC Methyl Hydrazine 1.41E E+00 NC 1.23E-02 C 1.75E-02 NC 1.75E-02 NC Methyl Isobutyl Ketone (4-methyl-2-pentanone) 4.66E E+05 NC 2.63E+03 NC 2.63E+03 NC 2.63E+03 NC Methyl Isocyanate 2.31E E+01 NC 8.76E-01 NC 8.76E-01 NC 8.76E-01 NC Methyl Methacrylate 4.70E E+04 NC 6.13E+02 NC 6.13E+02 NC 6.13E+02 NC Methyl Styrene (Mixed Isomers) 3.27E E+03 NC 3.50E+01 NC 3.50E+01 NC 3.50E+01 NC Methyl tert-butyl Ether (MTBE) 1.97E E+04 C 4.72E+01 C 4.72E+02 C 2.63E+03 NC Methylene Chloride 3.96E E+04 NC 5.26E+02 NC 5.26E+02 NC 5.26E+02 NC Mirex 7.25E E+00 C 2.40E-03 C 2.40E-02 C 2.40E-01 C Naphthalene 1.46E E+02 NC 3.61E-01 C 2.63E+00 NC 2.63E+00 NC Nickel Carbonyl 6.00E E+00 NC 1.23E-02 NC 1.23E-02 NC 1.23E-02 NC Nitrobenzene 3.12E E+02 C 3.07E-01 C 3.07E+00 C 7.88E+00 NC Nitromethane 3.75E E+02 NC 1.39E+00 C 4.38E+00 NC 4.38E+00 NC

5 CAS No. Contaminant Ground Water Screening Level (GWSL) 1,2 ug/l Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 Indoor Air and Crawlspace Screening Concentration (IASL) 1,2 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present Attenuation Factor (AF) = Attenuation Factor (AF)= IASL (A) IASL (B) IASL (C) GWSL=IASL (B) x 1/Henry's TCR = 1.0E-06 TCR = 1.0E-05 TCR = 1.0E-04 SGSL =IASL (B) x 1/AF Cgw&Csg Constant x 1/AF Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis Nitropropane, E E+00 C 4.54E-03 C 4.54E-02 C 4.54E-01 C Nitrosodimethylamine, N- 1.18E E-01 C,M 8.76E-04 C,M 8.76E-03 C,M 3.50E-02 NC Nitroso-di-N-butylamine, N- 1.42E E+00 C 7.67E-03 C 7.67E-02 C 7.67E-01 C Nitrosomethylethylamine, N- 3.31E E+00 C 1.95E-03 C 1.95E-02 C 1.95E-01 C Nonane, n- 1.26E E+03 NC 1.75E+01 NC 1.75E+01 NC 1.75E+01 NC Pentachlorobiphenyl, 2,3,3',4,4'- (PCB 105) Not sufficiently toxic or volatile 1.11E+01 C 1.11E-02 C 1.11E-01 C 1.11E+00 C Pentachlorobiphenyl, 2,3,4,4',5- (PCB 114) Not sufficiently toxic or volatile 1.11E+01 C 1.11E-02 C 1.11E-01 C 1.11E+00 C Pentachlorobiphenyl, 2,3',4,4',5- (PCB 118) 9.47E E+01 C 1.11E-02 C 1.11E-01 C 1.11E+00 C Pentachlorobiphenyl, 2',3,4,4',5- (PCB 123) 1.44E E+01 C 1.11E-02 C 1.11E-01 C 1.11E+00 C Pentachlorobiphenyl, 3,3',4,4',5- (PCB 126) 4.15E E-03 C 3.23E-06 C 3.23E-05 C 3.23E-04 C Pentane, n- 1.71E E+04 NC 8.76E+02 NC 8.76E+02 NC 8.76E+02 NC Phosgene 3.85E E+01 NC 2.63E-01 NC 2.63E-01 NC 2.63E-01 NC Phosphine 2.63E E+01 NC 2.63E-01 NC 2.63E-01 NC 2.63E-01 NC Propionaldehyde 2.34E E+02 NC 7.01E+00 NC 7.01E+00 NC 7.01E+00 NC Propyl benzene 2.04E E+04 NC 8.76E+02 NC 8.76E+02 NC 8.76E+02 NC Propylene 3.28E E+05 NC 2.63E+03 NC 2.63E+03 NC 2.63E+03 NC Propylene Glycol Monomethyl Ether 4.66E E+05 NC 1.75E+03 NC 1.75E+03 NC 1.75E+03 NC Propylene Oxide 9.24E E+03 NC 3.31E+00 C 2.63E+01 NC 2.63E+01 NC Styrene 7.79E E+04 NC 8.76E+02 NC 8.76E+02 NC 8.76E+02 NC Sulfur Trioxide No Solubility 8.76E+01 NC 8.76E-01 NC 8.76E-01 NC 8.76E-01 NC TCDD, 2,3,7,8-1.58E E-04 C 3.23E-07 C 3.23E-06 C 3.23E-05 C Tetrachlorobiphenyl, 3,4,4',5- (PCB 81) 1.22E E+00 C 1.11E-03 C 1.11E-02 C 1.11E-01 C Tetrachloroethane, 1,1,1,2-1.62E E+03 C 1.66E+00 C 1.66E+01 C 1.66E+02 C Tetrachloroethane, 1,1,2,2-1.41E E+02 C 2.11E-01 C 2.11E+00 C 2.11E+01 C Tetrachloroethylene 4.84E E+03 NC 3.50E+01 NC 3.50E+01 NC 3.50E+01 NC Tetrafluoroethane, 1,1,1,2-3.43E E+06 NC 7.01E+04 NC 7.01E+04 NC 7.01E+04 NC Tetrahydrofuran 6.08E E+05 NC 1.75E+03 NC 1.75E+03 NC 1.75E+03 NC Titanium Tetrachloride No Solubility 8.76E+00 NC 8.76E-02 NC 8.76E-02 NC 8.76E-02 NC Toluene 1.61E E+05 NC 4.38E+03 NC 4.38E+03 NC 4.38E+03 NC Toluene-2,4-diisocyanate 1.54E E-01 NC 7.01E-03 NC 7.01E-03 NC 7.01E-03 NC Toluene-2,6-diisocyanate 1.54E E-01 NC 7.01E-03 NC 7.01E-03 NC 7.01E-03 NC Trichloro-1,2,2-trifluoroethane, 1,1,2-1.22E E+06 NC 2.63E+04 NC 2.63E+04 NC 2.63E+04 NC Trichlorobenzene, 1,2,4-3.02E E+02 NC 1.75E+00 NC 1.75E+00 NC 1.75E+00 NC Trichloroethane, 1,1,1-6.23E E+05 NC 4.38E+03 NC 4.38E+03 NC 4.38E+03 NC Trichloroethane, 1,1,2-5.20E E+01 NC 1.75E-01 NC 1.75E-01 NC 1.75E-01 NC

6 CAS No. Contaminant Ground Water Screening Level (GWSL) 1,2 ug/l Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 Indoor Air and Crawlspace Screening Concentration (IASL) 1,2 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present Attenuation Factor (AF) = Attenuation Factor (AF)= IASL (A) IASL (B) IASL (C) GWSL=IASL (B) x 1/Henry's TCR = 1.0E-06 TCR = 1.0E-05 TCR = 1.0E-04 SGSL =IASL (B) x 1/AF Cgw&Csg Constant x 1/AF Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis THQ = 0.2 Tox Basis Trichloroethylene 4.35E E+02 NC 1.75E+00 NC 1.75E+00 NC 1.75E+00 NC Trichloropropane, 1,2,3-1.87E E+01 NC 2.63E-01 NC 2.63E-01 NC 2.63E-01 NC Trichloropropene, 1,2,3-3.65E E+01 NC 2.63E-01 NC 2.63E-01 NC 2.63E-01 NC Triethylamine 1.01E E+02 NC 6.13E+00 NC 6.13E+00 NC 6.13E+00 NC Trifluoroethane, 1,1,1-5.57E E+06 NC 1.75E+04 NC 1.75E+04 NC 1.75E+04 NC Trimethylbenzene, 1,2,3-2.46E E+02 NC 4.38E+00 NC 4.38E+00 NC 4.38E+00 NC Trimethylbenzene, 1,2,4-2.43E E+02 NC 6.13E+00 NC 6.13E+00 NC 6.13E+00 NC Tris(2,3-dibromopropyl)phosphate 2.08E E+01 C 1.86E-02 C 1.86E-01 C 1.86E+00 C Vinyl Acetate 8.39E E+04 NC 1.75E+02 NC 1.75E+02 NC 1.75E+02 NC Vinyl Bromide 5.23E E+02 NC 3.83E-01 C 2.63E+00 NC 2.63E+00 NC Vinyl Chloride 2.45E E+03 C,M 2.79E+00 C,M 2.79E+01 C,M 8.76E+01 NC Xylene, m- 2.98E E+03 NC 8.76E+01 NC 8.76E+01 NC 8.76E+01 NC Xylene, o- 4.14E E+03 NC 8.76E+01 NC 8.76E+01 NC 8.76E+01 NC Xylene, P- 3.11E E+03 NC 8.76E+01 NC 8.76E+01 NC 8.76E+01 NC Xylenes 3.23E E+03 NC 8.76E+01 NC 8.76E+01 NC 8.76E+01 NC

7

8

9

10

11

12