DWM Residential Vapor Intrusion Screening Levels
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
Note: The 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.
CAS No.
Contaminant
Ground Water Screening Level 1,2 (GWSL) ug/L
Sub-slab and Exterior Soil Gas Screening 1,2 Level (SGSL) ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
75-07-0 67-64-1 75-05-8 107-02-8 79-10-7 107-13-1 309-00-2 107-18-6 107-05-1 7664-41-7 75-85-4 12674-11-2 11104-28-2 11141-16-5 53469-21-9 12672-29-6 11097-69-1 11096-82-5 103-33-3 56-55-3 71-43-2 100-44-7 92-52-4 111-44-4 542-88-1 10294-34-5 7637-07-2 107-04-0
Acetaldehyde Acetone Acetonitrile Acrolein Acrylic Acid Acrylonitrile Aldrin Allyl Alcohol Allyl Chloride Ammonia Amyl Alcohol, tertAroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 1260 Azobenzene Benz[a]anthracene Benzene Benzyl Chloride Biphenyl, 1,1'Bis(2-chloroethyl)ether Bis(chloromethyl)ether Boron Trichloride Boron Trifluoride Bromo-2-chloroethane, 1-
6.88E+02 4.52E+06 8.87E+03 8.36E-01 1.38E+04 7.32E+01 3.19E+00 1.02E+02 4.64E-01 3.17E+04 1.11E+03 1.72E+02
5.28E+00 1.64E+00 3.51E+00 2.74E+00 4.26E+00 3.59E+00 1.64E+03 Not sufficiently toxic or volatile
1.59E+01 1.24E+01 6.63E+00 1.22E+02 2.54E-03 No Solubility No Henrys Law Constant
1.26E+00
Cgw&Csg Tox Basis 6.26E+01 NC 2.16E+05 NC 4.17E+02 NC 1.39E-01 NC 6.95E+00 NC 1.38E+01 C 1.91E-01 C 6.95E-01 NC 6.95E+00 NC 6.95E+02 NC 2.09E+01 NC 4.68E+01 C 1.64E+00 C 1.64E+00 C 1.64E+00 C 1.64E+00 C 1.64E+00 C 1.64E+00 C 3.02E+01 C Not sufficiently toxic or volatile C 1.20E+02 C 6.95E+00 NC 2.78E+00 NC 2.84E+00 C 1.51E-02 C 1.39E+02 NC 9.04E+01 NC 1.56E+00 C
SGSL =IASL (B) x 1/AF
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL) ug/m3
1,2
Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
IASL (B)
TCR = 1.0E-06 THQ = 0.2
1.28E+00 6.47E+03 1.25E+01 4.17E-03 2.09E-01 4.13E-02 5.73E-04 2.09E-02 2.09E-01 2.09E+01 6.26E-01 1.40E-01 4.93E-03 4.93E-03 4.93E-03 4.93E-03 4.93E-03 4.93E-03 9.06E-02 9.22E-03 3.60E-01 5.73E-02 8.34E-02 8.51E-03 4.53E-05 4.17E+00 2.71E+00 4.68E-03
IASL (C)
TCR = 1.0E-05
Tox Basis C NC NC NC NC C C NC NC NC NC C C C C C C C C C C C NC C C NC NC C
THQ = 0.2
1.88E+00 6.47E+03 1.25E+01 4.17E-03 2.09E-01 4.13E-01 5.73E-03 2.09E-02 2.09E-01 2.09E+01 6.26E-01 1.40E+00 4.93E-02 4.93E-02 4.93E-02 4.93E-02 4.93E-02 4.93E-02 9.06E-01 9.22E-02 3.60E+00 2.09E-01 8.34E-02 8.51E-02 4.53E-04 4.17E+00 2.71E+00 4.68E-02
TCR = 1.0E-04
Tox Basis NC NC NC NC NC C C NC NC NC NC C C C C C C C C C C NC NC C C NC NC C
THQ = 0.2
1.88E+00 6.47E+03 1.25E+01 4.17E-03 2.09E-01 4.17E-01 5.73E-02 2.09E-02 2.09E-01 2.09E+01 6.26E-01 1.40E+01 4.93E-01 4.93E-01 4.93E-01 4.93E-01 4.93E-01 4.93E-01 9.06E+00 9.22E-01 6.26E+00 2.09E-01 8.34E-02 8.51E-01 4.53E-03 4.17E+00 2.71E+00 4.68E-01
Tox Basis NC NC NC NC NC NC C NC NC NC NC C C C C C C C C C NC NC NC C C NC NC C
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
108-86-1 74-97-5 75-27-4 75-25-2 74-83-9 106-99-0 78-92-2 75-15-0 56-23-5 463-58-1 12789-03-6 7782-50-5 10049-04-4 75-68-3 126-99-8 108-90-7 98-56-6 75-45-6 67-66-3 74-87-3 107-30-2 76-06-2 98-82-8 57-12-5 110-82-7 108-94-1 110-83-8 72-55-9 96-12-8 106-93-4 74-95-3 764-41-0 1476-11-5 110-57-6 95-50-1
Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Butadiene, 1,3Butyl alcohol, secCarbon Disulfide Carbon Tetrachloride Carbonyl Sulfide Chlordane Chlorine Chlorine Dioxide Chloro-1,1-difluoroethane, 1Chloro-1,3-butadiene, 2Chlorobenzene Chlorobenzotrifluoride, 4Chlorodifluoromethane Chloroform Chloromethane Chloromethyl Methyl Ether Chloropicrin Cumene Cyanide (CN-) Cyclohexane Cyclohexanone Cyclohexene DDE, p,p'Dibromo-3-chloropropane, 1,2Dibromoethane, 1,2Dibromomethane (Methylene Bromide) Dichloro-2-butene, 1,4Dichloro-2-butene, cis-1,4Dichloro-2-butene, trans-1,4Dichlorobenzene, 1,2-
1.24E+02 1.40E+02 8.76E+00 1.17E+03 3.48E+00 1.39E-01 1.69E+07 2.48E+02 4.15E+00 8.36E-01 Not sufficiently toxic or volatile
6.54E-02 No Solubility
4.34E+03 4.08E-02 8.20E+01 4.41E+01 6.28E+03 8.14E+00 5.21E+01 3.27E+00 9.95E-01 1.77E+02 1.69E-01 2.04E+02 3.97E+05 1.12E+02 Not sufficiently toxic or volatile
2.81E-01 1.76E+00 2.48E+01 1.92E-02 2.46E-01 2.46E-01 5.31E+02
SGSL =IASL (B) x 1/AF
4.17E+02 2.78E+02 2.53E+01 8.51E+02 3.48E+01 1.39E+01 2.09E+05 4.87E+03 1.56E+02 6.95E+02 4.87E+00 1.04E+00 1.39E+00 3.48E+05 3.12E+00 3.48E+02 2.09E+03 3.48E+05 4.07E+01 6.26E+02 1.36E+00 2.78E+00 2.78E+03 5.56E+00 4.17E+04 4.87E+03 6.95E+03 9.65E+00 5.63E-02 1.56E+00 2.78E+01 2.23E-01 2.23E-01 2.23E-01 1.39E+03
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
Cgw&Csg Tox Basis NC NC C C NC NC NC NC C NC NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC C C,M C NC C C C NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
1.25E+01 8.34E+00 7.59E-02 2.55E+00 1.04E+00 9.36E-02 6.26E+03 1.46E+02 4.68E-01 2.09E+01 2.81E-02 3.13E-02 4.17E-02 1.04E+04 9.36E-03 1.04E+01 6.26E+01 1.04E+04 1.22E-01 1.88E+01 4.07E-03 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E-02 1.69E-04 4.68E-03 8.34E-01 6.68E-04 6.68E-04 6.68E-04 4.17E+01
IASL (C)
TCR = 1.0E-05
Tox Basis NC NC C C NC C NC NC C NC C NC NC NC C NC NC NC C NC C NC NC NC NC NC NC C C,M C NC C C C NC
THQ = 0.2
1.25E+01 8.34E+00 7.59E-01 2.55E+01 1.04E+00 4.17E-01 6.26E+03 1.46E+02 4.68E+00 2.09E+01 1.46E-01 3.13E-02 4.17E-02 1.04E+04 9.36E-02 1.04E+01 6.26E+01 1.04E+04 1.22E+00 1.88E+01 4.07E-02 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E-01 1.69E-03 4.68E-02 8.34E-01 6.68E-03 6.68E-03 6.68E-03 4.17E+01
TCR = 1.0E-04
Tox Basis NC NC C C NC NC NC NC C NC NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC C C,M C NC C C C NC
THQ = 0.2
1.25E+01 8.34E+00 7.59E+00 2.55E+02 1.04E+00 4.17E-01 6.26E+03 1.46E+02 2.09E+01 2.09E+01 1.46E-01 3.13E-02 4.17E-02 1.04E+04 9.36E-01 1.04E+01 6.26E+01 1.04E+04 1.22E+01 1.88E+01 4.07E-01 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E+00 1.69E-02 4.68E-01 8.34E-01 6.68E-02 6.68E-02 6.68E-02 4.17E+01
Tox Basis NC NC C C NC NC NC NC NC NC NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC C C,M C NC C C C NC
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
106-46-7 75-71-8 75-34-3 107-06-2 75-35-4 78-87-5 542-75-6 77-73-6 75-37-6 94-58-6 108-20-3 68-12-2 57-14-7 540-73-8 513-37-1 123-91-1 106-89-8 106-88-7 111-15-9 110-80-5 141-78-6 140-88-5 75-00-3 97-63-2 100-41-4 75-21-8 151-56-4 50-00-0 64-18-6 98-01-1 765-34-4 76-44-8 1024-57-3
Dichlorobenzene, 1,4Dichlorodifluoromethane Dichloroethane, 1,1Dichloroethane, 1,2Dichloroethylene, 1,1Dichloropropane, 1,2Dichloropropene, 1,3Dicyclopentadiene Difluoroethane, 1,1Dihydrosafrole Diisopropyl Ether Dimethylformamide Dimethylhydrazine, 1,1Dimethylhydrazine, 1,2Dimethylvinylchloride Dioxane, 1,4Epichlorohydrin Epoxybutane, 1,2Ethoxyethanol Acetate, 2Ethoxyethanol, 2Ethyl Acetate Ethyl Acrylate Ethyl Chloride (Chloroethane) Ethyl Methacrylate Ethylbenzene Ethylene Oxide Ethyleneimine Formaldehyde Formic Acid Furfural Glycidyl Heptachlor Heptachlor Epoxide
39635-31-9 Heptachlorobiphenyl, 2,3,3',4,4',5,5'- (PCB 189)
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
2.59E+01 1.49E+00 7.64E+01 2.24E+01 3.91E+01 7.24E+00 2.87E+01 2.45E-02 1.01E+04 4.33E+03 1.39E+03 2.07E+06 7.91E-01 6.18E+01 4.85E-01 2.86E+04 1.68E+02 5.67E+02 9.57E+04 2.17E+06 2.67E+03 1.20E+02 4.60E+03 2.67E+03 3.49E+01 5.27E+01 2.99E+00 1.48E+05 9.16E+03 6.77E+04 9.98E+03 1.80E+00 1.26E+01
8.51E+01 6.95E+02 5.85E+02 3.60E+01 1.39E+03 2.78E+01 1.39E+02 2.09E+00 2.78E+05 7.20E+01 4.87E+03 2.09E+02 1.39E-02 5.85E-03 7.20E+01 1.87E+02 6.95E+00 1.39E+02 4.17E+02 1.39E+03 4.87E+02 5.56E+01 6.95E+04 2.09E+03 3.74E+02 1.06E+01 4.93E-02 6.81E+01 2.09E+00 3.48E+02 6.95E+00 7.20E-01 3.60E-01
Cgw&Csg Tox Basis C NC C C NC NC NC NC NC C NC NC NC C C C NC NC NC NC NC NC NC NC C C C NC NC NC NC C C
Not sufficiently toxic or volatile
8.51E-01
C
SGSL =IASL (B) x 1/AF
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
IASL (B)
TCR = 1.0E-06
TCR = 1.0E-05
2.55E-01 2.09E+01 1.75E+00 1.08E-01 4.17E+01 2.81E-01 7.02E-01 6.26E-02 8.34E+03 2.16E-01 1.46E+02 6.26E+00 4.17E-04 1.75E-05 2.16E-01 5.62E-01 2.09E-01 4.17E+00 1.25E+01 4.17E+01 1.46E+01 1.67E+00 2.09E+03 6.26E+01 1.12E+00 3.19E-02 1.48E-04 2.16E-01 6.26E-02 1.04E+01 2.09E-01 2.16E-03 1.08E-03
Tox Basis C NC C C NC C C NC NC C NC NC NC C C C NC NC NC NC NC NC NC NC C C C C NC NC NC C C
2.55E-03
C
THQ = 0.2
IASL (C) TCR = 1.0E-04
2.55E+00 2.09E+01 1.75E+01 1.08E+00 4.17E+01 8.34E-01 4.17E+00 6.26E-02 8.34E+03 2.16E+00 1.46E+02 6.26E+00 4.17E-04 1.75E-04 2.16E+00 5.62E+00 2.09E-01 4.17E+00 1.25E+01 4.17E+01 1.46E+01 1.67E+00 2.09E+03 6.26E+01 1.12E+01 3.19E-01 1.48E-03 2.04E+00 6.26E-02 1.04E+01 2.09E-01 2.16E-02 1.08E-02
Tox Basis C NC C C NC NC NC NC NC C NC NC NC C C C NC NC NC NC NC NC NC NC C C C NC NC NC NC C C
2.55E-02
C
THQ = 0.2
2.55E+01 2.09E+01 1.75E+02 1.46E+00 4.17E+01 8.34E-01 4.17E+00 6.26E-02 8.34E+03 2.16E+01 1.46E+02 6.26E+00 4.17E-04 1.75E-03 2.16E+01 6.26E+00 2.09E-01 4.17E+00 1.25E+01 4.17E+01 1.46E+01 1.67E+00 2.09E+03 6.26E+01 1.12E+02 3.19E+00 1.48E-02 2.04E+00 6.26E-02 1.04E+01 2.09E-01 2.16E-01 1.08E-01
Tox Basis C NC C NC NC NC NC NC NC C NC NC NC C C NC NC NC NC NC NC NC NC NC C C C NC NC NC NC C C
2.55E-01
C
THQ = 0.2
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
118-74-1 38380-08-4 69782-90-7 52663-72-6 32774-16-6 87-68-3 77-47-4 67-72-1 822-06-0 110-54-3 591-78-6 302-01-2 7647-01-0 74-90-8 7664-39-3 7783-06-4 67-63-0 7439-97-6 126-98-7 67-56-1 110-49-6 109-86-4 96-33-3 78-93-3 60-34-4 108-10-1 624-83-9 80-62-6 25013-15-4 1634-04-4 75-09-2 2385-85-5 91-20-3 13463-39-3 98-95-3
Hexachlorobenzene Hexachlorobiphenyl, 2,3,3',4,4',5- (PCB 156) Hexachlorobiphenyl, 2,3,3',4,4',5'- (PCB 157) Hexachlorobiphenyl, 2,3',4,4',5,5'- (PCB 167) Hexachlorobiphenyl, 3,3',4,4',5,5'- (PCB 169) Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Hexamethylene Diisocyanate, 1,6Hexane, NHexanone, 2Hydrazine Hydrogen Chloride Hydrogen Cyanide Hydrogen Fluoride Hydrogen Sulfide Isopropanol Mercury (elemental) Methacrylonitrile Methanol Methoxyethanol Acetate, 2Methoxyethanol, 2Methyl Acrylate Methyl Ethyl Ketone (2-Butanone) Methyl Hydrazine Methyl Isobutyl Ketone (4-methyl-2-pentanone) Methyl Isocyanate Methyl Methacrylate Methyl Styrene (Mixed Isomers) Methyl tert-Butyl Ether (MTBE) Methylene Chloride Mirex Naphthalene Nickel Carbonyl Nitrobenzene
8.78E-01 4.37E+00 Not sufficiently toxic or volatile Not sufficiently toxic or volatile
9.11E-03 3.03E+00 3.78E-02 1.60E+01 1.06E+00 1.98E+00 1.64E+03 2.29E+02 5.00E-08 3.07E+01 6.87E+02 1.19E+00 1.26E+05 1.78E-01 6.20E+02 2.24E+07 1.64E+04 3.09E+05 5.13E+02 4.48E+05 3.37E+01 1.11E+05 5.51E+00 1.12E+04 7.79E+01 4.50E+03 9.42E+02 1.66E-01 3.48E+01 1.43E-04 7.15E+02
SGSL =IASL (B) x 1/AF
2.03E+00 8.51E-01 8.51E-01 8.51E-01 8.51E-04 4.25E+01 1.39E+00 8.51E+01 6.95E-02 4.87E+03 2.09E+02 1.91E-01 1.39E+02 5.56E+00 9.73E+01 1.39E+01 1.39E+03 2.09E+00 2.09E+02 1.39E+05 6.95E+00 1.39E+02 1.39E+02 3.48E+04 1.39E-01 2.09E+04 6.95E+00 4.87E+03 2.78E+02 3.60E+03 4.17E+03 1.84E-01 2.09E+01 9.73E-02 2.34E+01
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
Cgw&Csg Tox Basis C C C C C C NC C NC NC NC C NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC C NC C,M NC NC C
IASL (B)
TCR = 1.0E-06 THQ = 0.2
6.10E-03 2.55E-03 2.55E-03 2.55E-03 2.55E-06 1.28E-01 4.17E-02 2.55E-01 2.09E-03 1.46E+02 6.26E+00 5.73E-04 4.17E+00 1.67E-01 2.92E+00 4.17E-01 4.17E+01 6.26E-02 6.26E+00 4.17E+03 2.09E-01 4.17E+00 4.17E+00 1.04E+03 2.81E-03 6.26E+02 2.09E-01 1.46E+02 8.34E+00 1.08E+01 1.01E+02 5.51E-04 8.26E-02 2.92E-03 7.02E-02
IASL (C)
TCR = 1.0E-05
Tox Basis C C C C C C NC C NC NC NC C NC NC NC NC NC NC NC NC NC NC NC NC C NC NC NC NC C C C,M C NC C
THQ = 0.2
6.10E-02 2.55E-02 2.55E-02 2.55E-02 2.55E-05 1.28E+00 4.17E-02 2.55E+00 2.09E-03 1.46E+02 6.26E+00 5.73E-03 4.17E+00 1.67E-01 2.92E+00 4.17E-01 4.17E+01 6.26E-02 6.26E+00 4.17E+03 2.09E-01 4.17E+00 4.17E+00 1.04E+03 4.17E-03 6.26E+02 2.09E-01 1.46E+02 8.34E+00 1.08E+02 1.25E+02 5.51E-03 6.26E-01 2.92E-03 7.02E-01
TCR = 1.0E-04
Tox Basis C C C C C C NC C NC NC NC C NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC C NC C,M NC NC C
THQ = 0.2
6.10E-01 2.55E-01 2.55E-01 2.55E-01 2.55E-04 1.28E+01 4.17E-02 6.26E+00 2.09E-03 1.46E+02 6.26E+00 6.26E-03 4.17E+00 1.67E-01 2.92E+00 4.17E-01 4.17E+01 6.26E-02 6.26E+00 4.17E+03 2.09E-01 4.17E+00 4.17E+00 1.04E+03 4.17E-03 6.26E+02 2.09E-01 1.46E+02 8.34E+00 6.26E+02 1.25E+02 5.51E-02 6.26E-01 2.92E-03 1.88E+00
Tox Basis C C C C C C NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC C,M NC NC NC
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
75-52-5 79-46-9 62-75-9 924-16-3 10595-95-6 111-84-2 32598-14-4 74472-37-0 31508-00-6 65510-44-3 57465-28-8 109-66-0 75-44-5 7803-51-2 123-38-6 103-65-1 115-07-1 107-98-2 75-56-9 100-42-5 7446-11-9 1746-01-6 70362-50-4 630-20-6 79-34-5 127-18-4 811-97-2 109-99-9 7550-45-0 108-88-3 76-13-1 120-82-1 71-55-6 79-00-5 79-01-6
Nitromethane Nitropropane, 2Nitrosodimethylamine, NNitroso-di-N-butylamine, NNitrosomethylethylamine, NNonane, nPentachlorobiphenyl, 2,3,3',4,4'- (PCB 105) Pentachlorobiphenyl, 2,3,4,4',5- (PCB 114) Pentachlorobiphenyl, 2,3',4,4',5- (PCB 118) Pentachlorobiphenyl, 2',3,4,4',5- (PCB 123) Pentachlorobiphenyl, 3,3',4,4',5- (PCB 126) Pentane, nPhosgene Phosphine Propionaldehyde Propyl benzene Propylene Propylene Glycol Monomethyl Ether Propylene Oxide Styrene Sulfur Trioxide TCDD, 2,3,7,8Tetrachlorobiphenyl, 3,4,4',5- (PCB 81) Tetrachloroethane, 1,1,1,2Tetrachloroethane, 1,1,2,2Tetrachloroethylene Tetrafluoroethane, 1,1,1,2Tetrahydrofuran Titanium Tetrachloride Toluene Trichloro-1,2,2-trifluoroethane, 1,1,2Trichlorobenzene, 1,2,4Trichloroethane, 1,1,1Trichloroethane, 1,1,2Trichloroethylene
8.92E+02 2.14E+00 9.73E+00 3.25E+01 7.57E+01 3.00E-02 2.21E+00 6.76E+00 2.17E+00 3.29E+00 9.51E-04 4.08E+00 9.16E-02 6.27E-02 5.56E+02 4.86E+02 7.81E+01 1.11E+07 2.20E+03 1.86E+03 No Solubility
3.61E-04 2.80E-01 3.71E+01 3.23E+01 1.15E+01 8.16E+03 1.45E+05 No Solubility
3.84E+03 2.91E+02 7.19E+00 1.48E+03 1.24E+00 1.04E+00
SGSL =IASL (B) x 1/AF
3.48E+01 3.47E-01 2.41E-02 5.85E-01 1.49E-01 1.39E+02 8.51E-01 8.51E-01 8.51E-01 8.51E-01 2.46E-04 6.95E+03 2.09E+00 2.09E+00 5.56E+01 6.95E+03 2.09E+04 1.39E+04 2.09E+02 6.95E+03 6.95E+00 2.46E-05 8.51E-02 1.26E+02 1.61E+01 2.78E+02 5.56E+05 1.39E+04 6.95E-01 3.48E+04 2.09E+05 1.39E+01 3.48E+04 1.39E+00 1.39E+01
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
Cgw&Csg Tox Basis NC C C C C NC C C C C C NC NC NC NC NC NC NC NC NC NC C C C C NC NC NC NC NC NC NC NC NC NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
3.19E-01 1.04E-03 7.24E-05 1.75E-03 4.46E-04 4.17E+00 2.55E-03 2.55E-03 2.55E-03 2.55E-03 7.39E-07 2.09E+02 6.26E-02 6.26E-02 1.67E+00 2.09E+02 6.26E+02 4.17E+02 7.59E-01 2.09E+02 2.09E-01 7.39E-08 2.55E-04 3.79E-01 4.84E-02 8.34E+00 1.67E+04 4.17E+02 2.09E-02 1.04E+03 6.26E+03 4.17E-01 1.04E+03 4.17E-02 4.17E-01
IASL (C)
TCR = 1.0E-05
Tox Basis C C C C C NC C C C C C NC NC NC NC NC NC NC C NC NC C C C C NC NC NC NC NC NC NC NC NC NC
THQ = 0.2
1.04E+00 1.04E-02 7.24E-04 1.75E-02 4.46E-03 4.17E+00 2.55E-02 2.55E-02 2.55E-02 2.55E-02 7.39E-06 2.09E+02 6.26E-02 6.26E-02 1.67E+00 2.09E+02 6.26E+02 4.17E+02 6.26E+00 2.09E+02 2.09E-01 7.39E-07 2.55E-03 3.79E+00 4.84E-01 8.34E+00 1.67E+04 4.17E+02 2.09E-02 1.04E+03 6.26E+03 4.17E-01 1.04E+03 4.17E-02 4.17E-01
TCR = 1.0E-04
Tox Basis NC C C C C NC C C C C C NC NC NC NC NC NC NC NC NC NC C C C C NC NC NC NC NC NC NC NC NC NC
THQ = 0.2
1.04E+00 1.04E-01 7.24E-03 1.75E-01 4.46E-02 4.17E+00 2.55E-01 2.55E-01 2.55E-01 2.55E-01 7.39E-05 2.09E+02 6.26E-02 6.26E-02 1.67E+00 2.09E+02 6.26E+02 4.17E+02 6.26E+00 2.09E+02 2.09E-01 7.39E-06 2.55E-02 3.79E+01 4.84E+00 8.34E+00 1.67E+04 4.17E+02 2.09E-02 1.04E+03 6.26E+03 4.17E-01 1.04E+03 4.17E-02 4.17E-01
Tox Basis NC C C C C NC C C C C C NC NC NC NC NC NC NC NC NC NC C C C C NC NC NC NC NC NC NC NC NC NC
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
96-18-4 96-19-5 121-44-8 420-46-2 526-73-8 95-63-6 126-72-7 108-05-4 593-60-2 75-01-4 108-38-3 95-47-6 106-42-3 1330-20-7
Trichloropropane, 1,2,3Trichloropropene, 1,2,3Triethylamine Trifluoroethane, 1,1,1Trimethylbenzene, 1,2,3Trimethylbenzene, 1,2,4Tris(2,3-dibromopropyl)phosphate Vinyl Acetate Vinyl Bromide Vinyl Chloride Xylene, mXylene, oXylene, PXylenes
4.46E+00 8.70E-02 2.40E+02 1.33E+02 5.85E+00 5.80E+00 4.77E+01 2.00E+03 1.24E+00 2.03E+00 7.11E+01 9.85E+01 7.39E+01 7.69E+01
SGSL =IASL (B) x 1/AF
2.09E+00 2.09E+00 4.87E+01 1.39E+05 3.48E+01 4.87E+01 1.42E+00 1.39E+03 2.09E+01 7.68E+01 6.95E+02 6.95E+02 6.95E+02 6.95E+02
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
Cgw&Csg Tox Basis NC NC NC NC NC NC C NC NC C NC NC NC NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
6.26E-02 6.26E-02 1.46E+00 4.17E+03 1.04E+00 1.46E+00 4.25E-03 4.17E+01 8.77E-02 2.30E-01 2.09E+01 2.09E+01 2.09E+01 2.09E+01
IASL (C)
TCR = 1.0E-05
Tox Basis NC NC NC NC NC NC C NC C C NC NC NC NC
THQ = 0.2
6.26E-02 6.26E-02 1.46E+00 4.17E+03 1.04E+00 1.46E+00 4.25E-02 4.17E+01 6.26E-01 2.30E+00 2.09E+01 2.09E+01 2.09E+01 2.09E+01
TCR = 1.0E-04
Tox Basis NC NC NC NC NC NC C NC NC C NC NC NC NC
THQ = 0.2
6.26E-02 6.26E-02 1.46E+00 4.17E+03 1.04E+00 1.46E+00 4.25E-01 4.17E+01 6.26E-01 2.09E+01 2.09E+01 2.09E+01 2.09E+01 2.09E+01
Tox Basis NC NC NC NC NC NC C NC NC NC NC NC NC NC
Note: The 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.
CAS No.
Contaminant
Ground Water Screening Level 1,2 (GWSL) ug/L
Sub-slab and Exterior Soil Gas Screening 1,2 Level (SGSL) ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
75-07-0 67-64-1 75-05-8 107-02-8 79-10-7 107-13-1 309-00-2 107-18-6 107-05-1 7664-41-7 75-85-4 12674-11-2 11104-28-2 11141-16-5 53469-21-9 12672-29-6 11097-69-1 11096-82-5 103-33-3 56-55-3 71-43-2 100-44-7 92-52-4 111-44-4 542-88-1 10294-34-5 7637-07-2 107-04-0
Acetaldehyde Acetone Acetonitrile Acrolein Acrylic Acid Acrylonitrile Aldrin Allyl Alcohol Allyl Chloride Ammonia Amyl Alcohol, tertAroclor 1016 Aroclor 1221 Aroclor 1232 Aroclor 1242 Aroclor 1248 Aroclor 1254 Aroclor 1260 Azobenzene Benz[a]anthracene Benzene Benzyl Chloride Biphenyl, 1,1'Bis(2-chloroethyl)ether Bis(chloromethyl)ether Boron Trichloride Boron Trifluoride Bromo-2-chloroethane, 1-
6.88E+02 4.52E+06 8.87E+03 8.36E-01 1.38E+04 7.32E+01 3.19E+00 1.02E+02 4.64E-01 3.17E+04 1.11E+03 1.72E+02
5.28E+00 1.64E+00 3.51E+00 2.74E+00 4.26E+00 3.59E+00 1.64E+03 Not sufficiently toxic or volatile
1.59E+01 1.24E+01 6.63E+00 1.22E+02 2.54E-03 No Solubility No Henrys Law Constant
1.26E+00
Cgw&Csg Tox Basis 6.26E+01 NC 2.16E+05 NC 4.17E+02 NC 1.39E-01 NC 6.95E+00 NC 1.38E+01 C 1.91E-01 C 6.95E-01 NC 6.95E+00 NC 6.95E+02 NC 2.09E+01 NC 4.68E+01 C 1.64E+00 C 1.64E+00 C 1.64E+00 C 1.64E+00 C 1.64E+00 C 1.64E+00 C 3.02E+01 C Not sufficiently toxic or volatile C 1.20E+02 C 6.95E+00 NC 2.78E+00 NC 2.84E+00 C 1.51E-02 C 1.39E+02 NC 9.04E+01 NC 1.56E+00 C
SGSL =IASL (B) x 1/AF
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL) ug/m3
1,2
Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
IASL (B)
TCR = 1.0E-06 THQ = 0.2
1.28E+00 6.47E+03 1.25E+01 4.17E-03 2.09E-01 4.13E-02 5.73E-04 2.09E-02 2.09E-01 2.09E+01 6.26E-01 1.40E-01 4.93E-03 4.93E-03 4.93E-03 4.93E-03 4.93E-03 4.93E-03 9.06E-02 9.22E-03 3.60E-01 5.73E-02 8.34E-02 8.51E-03 4.53E-05 4.17E+00 2.71E+00 4.68E-03
IASL (C)
TCR = 1.0E-05
Tox Basis C NC NC NC NC C C NC NC NC NC C C C C C C C C C C C NC C C NC NC C
THQ = 0.2
1.88E+00 6.47E+03 1.25E+01 4.17E-03 2.09E-01 4.13E-01 5.73E-03 2.09E-02 2.09E-01 2.09E+01 6.26E-01 1.40E+00 4.93E-02 4.93E-02 4.93E-02 4.93E-02 4.93E-02 4.93E-02 9.06E-01 9.22E-02 3.60E+00 2.09E-01 8.34E-02 8.51E-02 4.53E-04 4.17E+00 2.71E+00 4.68E-02
TCR = 1.0E-04
Tox Basis NC NC NC NC NC C C NC NC NC NC C C C C C C C C C C NC NC C C NC NC C
THQ = 0.2
1.88E+00 6.47E+03 1.25E+01 4.17E-03 2.09E-01 4.17E-01 5.73E-02 2.09E-02 2.09E-01 2.09E+01 6.26E-01 1.40E+01 4.93E-01 4.93E-01 4.93E-01 4.93E-01 4.93E-01 4.93E-01 9.06E+00 9.22E-01 6.26E+00 2.09E-01 8.34E-02 8.51E-01 4.53E-03 4.17E+00 2.71E+00 4.68E-01
Tox Basis NC NC NC NC NC NC C NC NC NC NC C C C C C C C C C NC NC NC C C NC NC C
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
108-86-1 74-97-5 75-27-4 75-25-2 74-83-9 106-99-0 78-92-2 75-15-0 56-23-5 463-58-1 12789-03-6 7782-50-5 10049-04-4 75-68-3 126-99-8 108-90-7 98-56-6 75-45-6 67-66-3 74-87-3 107-30-2 76-06-2 98-82-8 57-12-5 110-82-7 108-94-1 110-83-8 72-55-9 96-12-8 106-93-4 74-95-3 764-41-0 1476-11-5 110-57-6 95-50-1
Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Butadiene, 1,3Butyl alcohol, secCarbon Disulfide Carbon Tetrachloride Carbonyl Sulfide Chlordane Chlorine Chlorine Dioxide Chloro-1,1-difluoroethane, 1Chloro-1,3-butadiene, 2Chlorobenzene Chlorobenzotrifluoride, 4Chlorodifluoromethane Chloroform Chloromethane Chloromethyl Methyl Ether Chloropicrin Cumene Cyanide (CN-) Cyclohexane Cyclohexanone Cyclohexene DDE, p,p'Dibromo-3-chloropropane, 1,2Dibromoethane, 1,2Dibromomethane (Methylene Bromide) Dichloro-2-butene, 1,4Dichloro-2-butene, cis-1,4Dichloro-2-butene, trans-1,4Dichlorobenzene, 1,2-
1.24E+02 1.40E+02 8.76E+00 1.17E+03 3.48E+00 1.39E-01 1.69E+07 2.48E+02 4.15E+00 8.36E-01 Not sufficiently toxic or volatile
6.54E-02 No Solubility
4.34E+03 4.08E-02 8.20E+01 4.41E+01 6.28E+03 8.14E+00 5.21E+01 3.27E+00 9.95E-01 1.77E+02 1.69E-01 2.04E+02 3.97E+05 1.12E+02 Not sufficiently toxic or volatile
2.81E-01 1.76E+00 2.48E+01 1.92E-02 2.46E-01 2.46E-01 5.31E+02
SGSL =IASL (B) x 1/AF
4.17E+02 2.78E+02 2.53E+01 8.51E+02 3.48E+01 1.39E+01 2.09E+05 4.87E+03 1.56E+02 6.95E+02 4.87E+00 1.04E+00 1.39E+00 3.48E+05 3.12E+00 3.48E+02 2.09E+03 3.48E+05 4.07E+01 6.26E+02 1.36E+00 2.78E+00 2.78E+03 5.56E+00 4.17E+04 4.87E+03 6.95E+03 9.65E+00 5.63E-02 1.56E+00 2.78E+01 2.23E-01 2.23E-01 2.23E-01 1.39E+03
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
Cgw&Csg Tox Basis NC NC C C NC NC NC NC C NC NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC C C,M C NC C C C NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
1.25E+01 8.34E+00 7.59E-02 2.55E+00 1.04E+00 9.36E-02 6.26E+03 1.46E+02 4.68E-01 2.09E+01 2.81E-02 3.13E-02 4.17E-02 1.04E+04 9.36E-03 1.04E+01 6.26E+01 1.04E+04 1.22E-01 1.88E+01 4.07E-03 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E-02 1.69E-04 4.68E-03 8.34E-01 6.68E-04 6.68E-04 6.68E-04 4.17E+01
IASL (C)
TCR = 1.0E-05
Tox Basis NC NC C C NC C NC NC C NC C NC NC NC C NC NC NC C NC C NC NC NC NC NC NC C C,M C NC C C C NC
THQ = 0.2
1.25E+01 8.34E+00 7.59E-01 2.55E+01 1.04E+00 4.17E-01 6.26E+03 1.46E+02 4.68E+00 2.09E+01 1.46E-01 3.13E-02 4.17E-02 1.04E+04 9.36E-02 1.04E+01 6.26E+01 1.04E+04 1.22E+00 1.88E+01 4.07E-02 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E-01 1.69E-03 4.68E-02 8.34E-01 6.68E-03 6.68E-03 6.68E-03 4.17E+01
TCR = 1.0E-04
Tox Basis NC NC C C NC NC NC NC C NC NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC C C,M C NC C C C NC
THQ = 0.2
1.25E+01 8.34E+00 7.59E+00 2.55E+02 1.04E+00 4.17E-01 6.26E+03 1.46E+02 2.09E+01 2.09E+01 1.46E-01 3.13E-02 4.17E-02 1.04E+04 9.36E-01 1.04E+01 6.26E+01 1.04E+04 1.22E+01 1.88E+01 4.07E-01 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E+00 1.69E-02 4.68E-01 8.34E-01 6.68E-02 6.68E-02 6.68E-02 4.17E+01
Tox Basis NC NC C C NC NC NC NC NC NC NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC C C,M C NC C C C NC
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
106-46-7 75-71-8 75-34-3 107-06-2 75-35-4 78-87-5 542-75-6 77-73-6 75-37-6 94-58-6 108-20-3 68-12-2 57-14-7 540-73-8 513-37-1 123-91-1 106-89-8 106-88-7 111-15-9 110-80-5 141-78-6 140-88-5 75-00-3 97-63-2 100-41-4 75-21-8 151-56-4 50-00-0 64-18-6 98-01-1 765-34-4 76-44-8 1024-57-3
Dichlorobenzene, 1,4Dichlorodifluoromethane Dichloroethane, 1,1Dichloroethane, 1,2Dichloroethylene, 1,1Dichloropropane, 1,2Dichloropropene, 1,3Dicyclopentadiene Difluoroethane, 1,1Dihydrosafrole Diisopropyl Ether Dimethylformamide Dimethylhydrazine, 1,1Dimethylhydrazine, 1,2Dimethylvinylchloride Dioxane, 1,4Epichlorohydrin Epoxybutane, 1,2Ethoxyethanol Acetate, 2Ethoxyethanol, 2Ethyl Acetate Ethyl Acrylate Ethyl Chloride (Chloroethane) Ethyl Methacrylate Ethylbenzene Ethylene Oxide Ethyleneimine Formaldehyde Formic Acid Furfural Glycidyl Heptachlor Heptachlor Epoxide
39635-31-9 Heptachlorobiphenyl, 2,3,3',4,4',5,5'- (PCB 189)
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
2.59E+01 1.49E+00 7.64E+01 2.24E+01 3.91E+01 7.24E+00 2.87E+01 2.45E-02 1.01E+04 4.33E+03 1.39E+03 2.07E+06 7.91E-01 6.18E+01 4.85E-01 2.86E+04 1.68E+02 5.67E+02 9.57E+04 2.17E+06 2.67E+03 1.20E+02 4.60E+03 2.67E+03 3.49E+01 5.27E+01 2.99E+00 1.48E+05 9.16E+03 6.77E+04 9.98E+03 1.80E+00 1.26E+01
8.51E+01 6.95E+02 5.85E+02 3.60E+01 1.39E+03 2.78E+01 1.39E+02 2.09E+00 2.78E+05 7.20E+01 4.87E+03 2.09E+02 1.39E-02 5.85E-03 7.20E+01 1.87E+02 6.95E+00 1.39E+02 4.17E+02 1.39E+03 4.87E+02 5.56E+01 6.95E+04 2.09E+03 3.74E+02 1.06E+01 4.93E-02 6.81E+01 2.09E+00 3.48E+02 6.95E+00 7.20E-01 3.60E-01
Cgw&Csg Tox Basis C NC C C NC NC NC NC NC C NC NC NC C C C NC NC NC NC NC NC NC NC C C C NC NC NC NC C C
Not sufficiently toxic or volatile
8.51E-01
C
SGSL =IASL (B) x 1/AF
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
IASL (B)
TCR = 1.0E-06
TCR = 1.0E-05
2.55E-01 2.09E+01 1.75E+00 1.08E-01 4.17E+01 2.81E-01 7.02E-01 6.26E-02 8.34E+03 2.16E-01 1.46E+02 6.26E+00 4.17E-04 1.75E-05 2.16E-01 5.62E-01 2.09E-01 4.17E+00 1.25E+01 4.17E+01 1.46E+01 1.67E+00 2.09E+03 6.26E+01 1.12E+00 3.19E-02 1.48E-04 2.16E-01 6.26E-02 1.04E+01 2.09E-01 2.16E-03 1.08E-03
Tox Basis C NC C C NC C C NC NC C NC NC NC C C C NC NC NC NC NC NC NC NC C C C C NC NC NC C C
2.55E-03
C
THQ = 0.2
IASL (C) TCR = 1.0E-04
2.55E+00 2.09E+01 1.75E+01 1.08E+00 4.17E+01 8.34E-01 4.17E+00 6.26E-02 8.34E+03 2.16E+00 1.46E+02 6.26E+00 4.17E-04 1.75E-04 2.16E+00 5.62E+00 2.09E-01 4.17E+00 1.25E+01 4.17E+01 1.46E+01 1.67E+00 2.09E+03 6.26E+01 1.12E+01 3.19E-01 1.48E-03 2.04E+00 6.26E-02 1.04E+01 2.09E-01 2.16E-02 1.08E-02
Tox Basis C NC C C NC NC NC NC NC C NC NC NC C C C NC NC NC NC NC NC NC NC C C C NC NC NC NC C C
2.55E-02
C
THQ = 0.2
2.55E+01 2.09E+01 1.75E+02 1.46E+00 4.17E+01 8.34E-01 4.17E+00 6.26E-02 8.34E+03 2.16E+01 1.46E+02 6.26E+00 4.17E-04 1.75E-03 2.16E+01 6.26E+00 2.09E-01 4.17E+00 1.25E+01 4.17E+01 1.46E+01 1.67E+00 2.09E+03 6.26E+01 1.12E+02 3.19E+00 1.48E-02 2.04E+00 6.26E-02 1.04E+01 2.09E-01 2.16E-01 1.08E-01
Tox Basis C NC C NC NC NC NC NC NC C NC NC NC C C NC NC NC NC NC NC NC NC NC C C C NC NC NC NC C C
2.55E-01
C
THQ = 0.2
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
118-74-1 38380-08-4 69782-90-7 52663-72-6 32774-16-6 87-68-3 77-47-4 67-72-1 822-06-0 110-54-3 591-78-6 302-01-2 7647-01-0 74-90-8 7664-39-3 7783-06-4 67-63-0 7439-97-6 126-98-7 67-56-1 110-49-6 109-86-4 96-33-3 78-93-3 60-34-4 108-10-1 624-83-9 80-62-6 25013-15-4 1634-04-4 75-09-2 2385-85-5 91-20-3 13463-39-3 98-95-3
Hexachlorobenzene Hexachlorobiphenyl, 2,3,3',4,4',5- (PCB 156) Hexachlorobiphenyl, 2,3,3',4,4',5'- (PCB 157) Hexachlorobiphenyl, 2,3',4,4',5,5'- (PCB 167) Hexachlorobiphenyl, 3,3',4,4',5,5'- (PCB 169) Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Hexamethylene Diisocyanate, 1,6Hexane, NHexanone, 2Hydrazine Hydrogen Chloride Hydrogen Cyanide Hydrogen Fluoride Hydrogen Sulfide Isopropanol Mercury (elemental) Methacrylonitrile Methanol Methoxyethanol Acetate, 2Methoxyethanol, 2Methyl Acrylate Methyl Ethyl Ketone (2-Butanone) Methyl Hydrazine Methyl Isobutyl Ketone (4-methyl-2-pentanone) Methyl Isocyanate Methyl Methacrylate Methyl Styrene (Mixed Isomers) Methyl tert-Butyl Ether (MTBE) Methylene Chloride Mirex Naphthalene Nickel Carbonyl Nitrobenzene
8.78E-01 4.37E+00 Not sufficiently toxic or volatile Not sufficiently toxic or volatile
9.11E-03 3.03E+00 3.78E-02 1.60E+01 1.06E+00 1.98E+00 1.64E+03 2.29E+02 5.00E-08 3.07E+01 6.87E+02 1.19E+00 1.26E+05 1.78E-01 6.20E+02 2.24E+07 1.64E+04 3.09E+05 5.13E+02 4.48E+05 3.37E+01 1.11E+05 5.51E+00 1.12E+04 7.79E+01 4.50E+03 9.42E+02 1.66E-01 3.48E+01 1.43E-04 7.15E+02
SGSL =IASL (B) x 1/AF
2.03E+00 8.51E-01 8.51E-01 8.51E-01 8.51E-04 4.25E+01 1.39E+00 8.51E+01 6.95E-02 4.87E+03 2.09E+02 1.91E-01 1.39E+02 5.56E+00 9.73E+01 1.39E+01 1.39E+03 2.09E+00 2.09E+02 1.39E+05 6.95E+00 1.39E+02 1.39E+02 3.48E+04 1.39E-01 2.09E+04 6.95E+00 4.87E+03 2.78E+02 3.60E+03 4.17E+03 1.84E-01 2.09E+01 9.73E-02 2.34E+01
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
Cgw&Csg Tox Basis C C C C C C NC C NC NC NC C NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC C NC C,M NC NC C
IASL (B)
TCR = 1.0E-06 THQ = 0.2
6.10E-03 2.55E-03 2.55E-03 2.55E-03 2.55E-06 1.28E-01 4.17E-02 2.55E-01 2.09E-03 1.46E+02 6.26E+00 5.73E-04 4.17E+00 1.67E-01 2.92E+00 4.17E-01 4.17E+01 6.26E-02 6.26E+00 4.17E+03 2.09E-01 4.17E+00 4.17E+00 1.04E+03 2.81E-03 6.26E+02 2.09E-01 1.46E+02 8.34E+00 1.08E+01 1.01E+02 5.51E-04 8.26E-02 2.92E-03 7.02E-02
IASL (C)
TCR = 1.0E-05
Tox Basis C C C C C C NC C NC NC NC C NC NC NC NC NC NC NC NC NC NC NC NC C NC NC NC NC C C C,M C NC C
THQ = 0.2
6.10E-02 2.55E-02 2.55E-02 2.55E-02 2.55E-05 1.28E+00 4.17E-02 2.55E+00 2.09E-03 1.46E+02 6.26E+00 5.73E-03 4.17E+00 1.67E-01 2.92E+00 4.17E-01 4.17E+01 6.26E-02 6.26E+00 4.17E+03 2.09E-01 4.17E+00 4.17E+00 1.04E+03 4.17E-03 6.26E+02 2.09E-01 1.46E+02 8.34E+00 1.08E+02 1.25E+02 5.51E-03 6.26E-01 2.92E-03 7.02E-01
TCR = 1.0E-04
Tox Basis C C C C C C NC C NC NC NC C NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC C NC C,M NC NC C
THQ = 0.2
6.10E-01 2.55E-01 2.55E-01 2.55E-01 2.55E-04 1.28E+01 4.17E-02 6.26E+00 2.09E-03 1.46E+02 6.26E+00 6.26E-03 4.17E+00 1.67E-01 2.92E+00 4.17E-01 4.17E+01 6.26E-02 6.26E+00 4.17E+03 2.09E-01 4.17E+00 4.17E+00 1.04E+03 4.17E-03 6.26E+02 2.09E-01 1.46E+02 8.34E+00 6.26E+02 1.25E+02 5.51E-02 6.26E-01 2.92E-03 1.88E+00
Tox Basis C C C C C C NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC C,M NC NC NC
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
75-52-5 79-46-9 62-75-9 924-16-3 10595-95-6 111-84-2 32598-14-4 74472-37-0 31508-00-6 65510-44-3 57465-28-8 109-66-0 75-44-5 7803-51-2 123-38-6 103-65-1 115-07-1 107-98-2 75-56-9 100-42-5 7446-11-9 1746-01-6 70362-50-4 630-20-6 79-34-5 127-18-4 811-97-2 109-99-9 7550-45-0 108-88-3 76-13-1 120-82-1 71-55-6 79-00-5 79-01-6
Nitromethane Nitropropane, 2Nitrosodimethylamine, NNitroso-di-N-butylamine, NNitrosomethylethylamine, NNonane, nPentachlorobiphenyl, 2,3,3',4,4'- (PCB 105) Pentachlorobiphenyl, 2,3,4,4',5- (PCB 114) Pentachlorobiphenyl, 2,3',4,4',5- (PCB 118) Pentachlorobiphenyl, 2',3,4,4',5- (PCB 123) Pentachlorobiphenyl, 3,3',4,4',5- (PCB 126) Pentane, nPhosgene Phosphine Propionaldehyde Propyl benzene Propylene Propylene Glycol Monomethyl Ether Propylene Oxide Styrene Sulfur Trioxide TCDD, 2,3,7,8Tetrachlorobiphenyl, 3,4,4',5- (PCB 81) Tetrachloroethane, 1,1,1,2Tetrachloroethane, 1,1,2,2Tetrachloroethylene Tetrafluoroethane, 1,1,1,2Tetrahydrofuran Titanium Tetrachloride Toluene Trichloro-1,2,2-trifluoroethane, 1,1,2Trichlorobenzene, 1,2,4Trichloroethane, 1,1,1Trichloroethane, 1,1,2Trichloroethylene
8.92E+02 2.14E+00 9.73E+00 3.25E+01 7.57E+01 3.00E-02 2.21E+00 6.76E+00 2.17E+00 3.29E+00 9.51E-04 4.08E+00 9.16E-02 6.27E-02 5.56E+02 4.86E+02 7.81E+01 1.11E+07 2.20E+03 1.86E+03 No Solubility
3.61E-04 2.80E-01 3.71E+01 3.23E+01 1.15E+01 8.16E+03 1.45E+05 No Solubility
3.84E+03 2.91E+02 7.19E+00 1.48E+03 1.24E+00 1.04E+00
SGSL =IASL (B) x 1/AF
3.48E+01 3.47E-01 2.41E-02 5.85E-01 1.49E-01 1.39E+02 8.51E-01 8.51E-01 8.51E-01 8.51E-01 2.46E-04 6.95E+03 2.09E+00 2.09E+00 5.56E+01 6.95E+03 2.09E+04 1.39E+04 2.09E+02 6.95E+03 6.95E+00 2.46E-05 8.51E-02 1.26E+02 1.61E+01 2.78E+02 5.56E+05 1.39E+04 6.95E-01 3.48E+04 2.09E+05 1.39E+01 3.48E+04 1.39E+00 1.39E+01
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
Cgw&Csg Tox Basis NC C C C C NC C C C C C NC NC NC NC NC NC NC NC NC NC C C C C NC NC NC NC NC NC NC NC NC NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
3.19E-01 1.04E-03 7.24E-05 1.75E-03 4.46E-04 4.17E+00 2.55E-03 2.55E-03 2.55E-03 2.55E-03 7.39E-07 2.09E+02 6.26E-02 6.26E-02 1.67E+00 2.09E+02 6.26E+02 4.17E+02 7.59E-01 2.09E+02 2.09E-01 7.39E-08 2.55E-04 3.79E-01 4.84E-02 8.34E+00 1.67E+04 4.17E+02 2.09E-02 1.04E+03 6.26E+03 4.17E-01 1.04E+03 4.17E-02 4.17E-01
IASL (C)
TCR = 1.0E-05
Tox Basis C C C C C NC C C C C C NC NC NC NC NC NC NC C NC NC C C C C NC NC NC NC NC NC NC NC NC NC
THQ = 0.2
1.04E+00 1.04E-02 7.24E-04 1.75E-02 4.46E-03 4.17E+00 2.55E-02 2.55E-02 2.55E-02 2.55E-02 7.39E-06 2.09E+02 6.26E-02 6.26E-02 1.67E+00 2.09E+02 6.26E+02 4.17E+02 6.26E+00 2.09E+02 2.09E-01 7.39E-07 2.55E-03 3.79E+00 4.84E-01 8.34E+00 1.67E+04 4.17E+02 2.09E-02 1.04E+03 6.26E+03 4.17E-01 1.04E+03 4.17E-02 4.17E-01
TCR = 1.0E-04
Tox Basis NC C C C C NC C C C C C NC NC NC NC NC NC NC NC NC NC C C C C NC NC NC NC NC NC NC NC NC NC
THQ = 0.2
1.04E+00 1.04E-01 7.24E-03 1.75E-01 4.46E-02 4.17E+00 2.55E-01 2.55E-01 2.55E-01 2.55E-01 7.39E-05 2.09E+02 6.26E-02 6.26E-02 1.67E+00 2.09E+02 6.26E+02 4.17E+02 6.26E+00 2.09E+02 2.09E-01 7.39E-06 2.55E-02 3.79E+01 4.84E+00 8.34E+00 1.67E+04 4.17E+02 2.09E-02 1.04E+03 6.26E+03 4.17E-01 1.04E+03 4.17E-02 4.17E-01
Tox Basis NC C C C C NC C C C C C NC NC NC NC NC NC NC NC NC NC C C C C NC NC NC NC NC NC NC NC NC NC
DIVISION OF WASTE MANAGEMENT RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS (March, 2016)
CAS No.
Contaminant
Ground Water Screening Level (GWSL) 1,2 ug/L
Sub-slab and Exterior Soil Gas Screening Level (SGSL) 1,2 ug/m3
Attenuation Factor (AF) = 0.001
0.03
GWSL=IASL (B) x 1/Henry's Constant x 1/AF
96-18-4 96-19-5 121-44-8 420-46-2 526-73-8 95-63-6 126-72-7 108-05-4 593-60-2 75-01-4 108-38-3 95-47-6 106-42-3 1330-20-7
Trichloropropane, 1,2,3Trichloropropene, 1,2,3Triethylamine Trifluoroethane, 1,1,1Trimethylbenzene, 1,2,3Trimethylbenzene, 1,2,4Tris(2,3-dibromopropyl)phosphate Vinyl Acetate Vinyl Bromide Vinyl Chloride Xylene, mXylene, oXylene, PXylenes
4.46E+00 8.70E-02 2.40E+02 1.33E+02 5.85E+00 5.80E+00 4.77E+01 2.00E+03 1.24E+00 2.03E+00 7.11E+01 9.85E+01 7.39E+01 7.69E+01
SGSL =IASL (B) x 1/AF
2.09E+00 2.09E+00 4.87E+01 1.39E+05 3.48E+01 4.87E+01 1.42E+00 1.39E+03 2.09E+01 7.68E+01 6.95E+02 6.95E+02 6.95E+02 6.95E+02
1. Based on November 2015 USEPA Regional Screening Level Target Air Concentrations and the USEPA VI Screening Level Calculator. 2. TCR = Target Cancer Risk; THQ=Target Hazard Quotient; C= Carcinogenic; N = Non-Carcinognic
Indoor Air and Crawlspace Screening Concentration (IASL)1,2 ug/m3 Indoor Air/Crawlspace Screening Levels at Target Risk 1.0E-04 (IASL C) to be Used if only One Carcinogen is Present IASL (A)
Cgw&Csg Tox Basis NC NC NC NC NC NC C NC NC C NC NC NC NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
6.26E-02 6.26E-02 1.46E+00 4.17E+03 1.04E+00 1.46E+00 4.25E-03 4.17E+01 8.77E-02 2.30E-01 2.09E+01 2.09E+01 2.09E+01 2.09E+01
IASL (C)
TCR = 1.0E-05
Tox Basis NC NC NC NC NC NC C NC C C NC NC NC NC
THQ = 0.2
6.26E-02 6.26E-02 1.46E+00 4.17E+03 1.04E+00 1.46E+00 4.25E-02 4.17E+01 6.26E-01 2.30E+00 2.09E+01 2.09E+01 2.09E+01 2.09E+01
TCR = 1.0E-04
Tox Basis NC NC NC NC NC NC C NC NC C NC NC NC NC
THQ = 0.2
6.26E-02 6.26E-02 1.46E+00 4.17E+03 1.04E+00 1.46E+00 4.25E-01 4.17E+01 6.26E-01 2.09E+01 2.09E+01 2.09E+01 2.09E+01 2.09E+01
Tox Basis NC NC NC NC NC NC C NC NC NC NC NC NC NC
