DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR ...
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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 75-86-5 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 92-52-4 108-60-1 111-44-4 542-88-1 10294-34-5
Acetaldehyde Acetone Acetone Cyanohydrin 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-chloro-1-methylethyl) ether Bis(2-chloroethyl)ether Bis(chloromethyl)ether Boron Trichloride
6.89E+02 4.52E+06 7.85E+02 8.87E+03 8.37E-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 1.64E+00 1.64E+00 6.34E+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 9.26E+02 1.22E+02 2.54E-03 No S
Cgw&Csg Tox Basis 6.26E+01 NC 2.16E+05 NC 1.39E+01 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 9.36E+01 C 2.84E+00 C 1.51E-02 C 1.39E+02 NC
SGSL =IASL (B) x 1/AF
1. Based on June 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 4.17E-01 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 2.81E-01 8.51E-03 4.53E-05 4.17E+00
IASL (C)
TCR = 1.0E-05
Tox Basis C NC NC NC NC NC C C NC NC NC NC C C C C C C C C C C C NC C C C NC
THQ = 0.2
1.88E+00 6.47E+03 4.17E-01 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 2.81E+00 8.51E-02 4.53E-04 4.17E+00
TCR = 1.0E-04
Tox Basis NC 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 C NC
THQ = 0.2
1.88E+00 6.47E+03 4.17E-01 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 2.81E+01 8.51E-01 4.53E-03 4.17E+00
Tox Basis NC 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 C NC
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
7637-07-2 107-04-0 108-86-1 74-97-5 75-27-4 75-25-2 74-83-9 106-99-0 78-92-2 75-15-0 56-23-5 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 88-73-3 76-06-2 98-82-8 57-12-5 110-82-7 108-94-1 110-83-8 72-55-9 96-12-8 124-48-1 106-93-4 74-95-3 764-41-0
Boron Trifluoride Bromo-2-chloroethane, 1Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Butadiene, 1,3Butyl alcohol, secCarbon Disulfide Carbon Tetrachloride Chlordane Chlorine Chlorine Dioxide Chloro-1,1-difluoroethane, 1Chloro-1,3-butadiene, 2Chlorobenzene Chlorobenzotrifluoride, 4Chlorodifluoromethane Chloroform Chloromethane Chloromethyl Methyl Ether Chloronitrobenzene, oChloropicrin Cumene Cyanide (CN-) Cyclohexane Cyclohexanone Cyclohexene DDE, p,p'Dibromo-3-chloropropane, 1,2Dibromochloromethane Dibromoethane, 1,2Dibromomethane (Methylene Bromide) Dichloro-2-butene, 1,4-
No Henrys Law Constant
1.26E+00 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 No Henrys Law Constant
6.54E-02 No Henrys Law Constant
4.34E+03 4.08E-02 8.20E+01 4.41E+01 6.28E+03 8.14E+00 5.21E+01 3.27E+00 5.49E+00 9.96E-01 1.77E+02 1.69E-01 2.04E+02 3.97E+05 1.12E+02 Not sufficiently toxic or volatile
2.81E-01 3.25E+01 1.76E+00 2.48E+01 3.06E-01
SGSL =IASL (B) x 1/AF
9.04E+01 1.56E+00 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 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 6.95E-02 2.78E+00 2.78E+03 5.56E+00 4.17E+04 4.87E+03 6.95E+03 9.65E+00 5.63E-02 3.47E+01 1.56E+00 2.78E+01 2.23E-01
1. Based on June 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 NC NC C C NC NC NC NC C NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC NC C C C C NC C
IASL (B)
TCR = 1.0E-06 THQ = 0.2
2.71E+00 4.68E-03 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 2.81E-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 2.09E-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 1.04E-01 4.68E-03 8.34E-01 6.68E-04
IASL (C)
TCR = 1.0E-05
Tox Basis NC C NC NC C C NC C NC NC C C NC NC NC C NC NC NC C NC C NC NC NC NC NC NC NC C C C C NC C
THQ = 0.2
2.71E+00 4.68E-02 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 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 2.09E-03 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E-01 1.69E-03 1.04E+00 4.68E-02 8.34E-01 6.68E-03
TCR = 1.0E-04
Tox Basis NC C NC NC C C NC NC NC NC C NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC NC C C C C NC C
THQ = 0.2
2.71E+00 4.68E-01 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 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 2.09E-03 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E+00 1.69E-02 1.04E+01 4.68E-01 8.34E-01 6.68E-02
Tox Basis NC C NC NC C C NC NC NC NC NC NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC NC C C C C NC C
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
1476-11-5 110-57-6 95-50-1 106-46-7 75-71-8 75-34-3 107-06-2 75-35-4 78-87-5 542-75-6 77-73-6 60-57-1 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 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
Dichloro-2-butene, cis-1,4Dichloro-2-butene, trans-1,4Dichlorobenzene, 1,2Dichlorobenzene, 1,4Dichlorodifluoromethane Dichloroethane, 1,1Dichloroethane, 1,2Dichloroethylene, 1,1Dichloropropane, 1,2Dichloropropene, 1,3Dicyclopentadiene Dieldrin Difluoroethane, 1,1Dihydrosafrole Diisopropyl Ether Dimethylformamide Dimethylhydrazine, 1,1Dimethylhydrazine, 1,2Dimethylvinylchloride Dioxane, 1,4Epichlorohydrin Epoxybutane, 1,2Ethoxyethanol Acetate, 2Ethoxyethanol, 2Ethyl Acetate Ethyl Chloride (Chloroethane) Ethyl Methacrylate Ethylbenzene Ethylene Oxide Ethyleneimine Formaldehyde Formic Acid Furfural Glycidyl Heptachlor
2.46E-01 2.46E-01 5.32E+02 2.59E+01 1.49E+00 7.64E+01 2.24E+01 3.91E+01 7.24E+00 2.87E+01 2.45E-02 1.49E+01 1.01E+04 3.20E-01 1.40E+03 2.07E+06 1.47E+02 6.18E+01 6.52E-01 2.86E+04 1.68E+02 5.67E+02 9.57E+04 2.17E+06 2.67E+03 4.60E+03 2.67E+03 3.49E+01 5.27E+01 2.99E+00 1.48E+05 9.17E+03 6.77E+04 6.51E+03 1.80E+00
SGSL =IASL (B) x 1/AF
2.23E-01 2.23E-01 1.39E+03 8.51E+01 6.95E+02 5.85E+02 3.60E+01 1.39E+03 2.78E+01 1.39E+02 2.09E+00 2.03E-01 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 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
1. Based on June 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 NC C NC C C NC NC NC NC C NC C NC NC NC C C C NC NC NC NC NC NC NC C C C NC NC NC NC C
IASL (B)
TCR = 1.0E-06 THQ = 0.2
6.68E-04 6.68E-04 4.17E+01 2.55E-01 2.09E+01 1.75E+00 1.08E-01 4.17E+01 2.81E-01 7.02E-01 6.26E-02 6.10E-04 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 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
IASL (C)
TCR = 1.0E-05
Tox Basis C C NC C NC C C NC C C NC C NC C NC NC NC C C C NC NC NC NC NC NC NC C C C C NC NC NC C
THQ = 0.2
6.68E-03 6.68E-03 4.17E+01 2.55E+00 2.09E+01 1.75E+01 1.08E+00 4.17E+01 8.34E-01 4.17E+00 6.26E-02 6.10E-03 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 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
TCR = 1.0E-04
Tox Basis C C NC C NC C C NC NC NC NC C NC C NC NC NC C C C NC NC NC NC NC NC NC C C C NC NC NC NC C
THQ = 0.2
6.68E-02 6.68E-02 4.17E+01 2.55E+01 2.09E+01 1.75E+02 1.46E+00 4.17E+01 8.34E-01 4.17E+00 6.26E-02 6.10E-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 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
Tox Basis C C NC C NC C NC NC NC NC NC C NC C NC NC NC C C NC NC NC NC NC NC NC NC C C C NC NC NC NC C
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
1024-57-3
Heptachlor Epoxide
39635-31-9 118-74-1 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
Heptachlorobiphenyl, 2,3,3',4,4',5,5'- (PCB 189) 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
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)
1.26E+01
3.60E-01
Cgw&Csg Tox Basis C
Not sufficiently toxic or volatile
8.51E-01 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
C 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
8.78E-01 4.37E+00 Not sufficiently toxic or volatile Not sufficiently toxic or volatile
3.85E-03 3.03E+00 3.78E-02 1.61E+01 1.06E+00 1.98E+00 1.64E+03 2.30E+02 5.00E-08 3.07E+01 6.87E+02 1.19E+00 1.26E+05 1.34E-01 6.20E+02 2.24E+07 1.64E+04 3.09E+05 5.13E+02 4.48E+05 3.23E+03 1.11E+05 5.51E+00 1.12E+04 6.78E+01 4.50E+03 9.42E+02 1.66E-01
SGSL =IASL (B) x 1/AF
1. Based on June 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
1.08E-03
Tox Basis C
2.55E-03 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
C 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
THQ = 0.2
IASL (C) TCR = 1.0E-04
1.08E-02
Tox Basis C
2.55E-02 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
C 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
THQ = 0.2
1.08E-01
Tox Basis C
2.55E-01 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
C 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
THQ = 0.2
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
91-20-3 13463-39-3 98-95-3 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 94-59-7 100-42-5 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
Naphthalene Nickel Carbonyl Nitrobenzene 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 Safrole Styrene 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, 1,2,4-
3.48E+01 No Henrys Law Constant
7.16E+02 8.92E+02 2.14E+00 9.74E+00 3.25E+01 7.57E+01 3.00E-02 2.21E+00 3.29E+00 2.17E+00 3.29E+00 9.51E-04 4.08E+00 9.17E-02 6.27E-02 5.56E+02 4.86E+02 7.81E+01 1.11E+07 2.20E+03 4.34E+02 1.86E+03 3.62E-04 2.80E-01 3.71E+01 3.23E+01 1.15E+01 8.16E+03 1.45E+05 No Henrys Law Constant
3.84E+03 2.91E+02 7.19E+00
SGSL =IASL (B) x 1/AF
2.09E+01 9.73E-02 2.34E+01 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 5.36E+00 6.95E+03 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
1. Based on June 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 NC C C C C NC C C C C C NC NC NC NC NC NC NC NC C NC C C C C NC NC NC NC NC NC NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
8.26E-02 2.92E-03 7.02E-02 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 1.61E-02 2.09E+02 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
IASL (C)
TCR = 1.0E-05
Tox Basis C NC C C C C C C NC C C C C C NC NC NC NC NC NC NC C C NC C C C C NC NC NC NC NC NC NC
THQ = 0.2
6.26E-01 2.92E-03 7.02E-01 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 1.61E-01 2.09E+02 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
TCR = 1.0E-04
Tox Basis NC NC C NC C C C C NC C C C C C NC NC NC NC NC NC NC NC C NC C C C C NC NC NC NC NC NC NC
THQ = 0.2
6.26E-01 2.92E-03 1.88E+00 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 1.61E+00 2.09E+02 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
Tox Basis NC NC NC NC C C C C NC C C C C C NC NC NC NC NC NC NC NC C NC C C C C NC NC NC NC NC NC NC
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
71-55-6 79-00-5 79-01-6 75-69-4 96-18-4 96-19-5 121-44-8 526-73-8 95-63-6 108-05-4 593-60-2 75-01-4 108-38-3 95-47-6 106-42-3 1330-20-7 140-88-5
Trichloroethane, 1,1,1Trichloroethane, 1,1,2Trichloroethylene Trichlorofluoromethane Trichloropropane, 1,2,3Trichloropropene, 1,2,3Triethylamine Trimethylbenzene, 1,2,3Trimethylbenzene, 1,2,4Vinyl Acetate Vinyl Bromide Vinyl Chloride Xylene, mXylene, oXylene, PXylenes Ethyl Acrylate
1.48E+03 1.24E+00 1.04E+00 3.68E+01 4.46E+00 8.70E-02 2.40E+02 5.85E+00 5.80E+00 2.00E+03 1.24E+00 1.47E+00 7.11E+01 9.85E+01 7.40E+01 9.85E+01 1.20E+02
SGSL =IASL (B) x 1/AF
3.48E+04 1.39E+00 1.39E+01 4.87E+03 2.09E+00 2.09E+00 4.87E+01 3.48E+01 4.87E+01 1.39E+03 2.09E+01 5.59E+01 6.95E+02 6.95E+02 6.95E+02 6.95E+02 5.56E+01
1. Based on June 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 NC NC NC NC NC C NC NC NC NC NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
1.04E+03 4.17E-02 4.17E-01 1.46E+02 6.26E-02 6.26E-02 1.46E+00 1.04E+00 1.46E+00 4.17E+01 8.77E-02 1.68E-01 2.09E+01 2.09E+01 2.09E+01 2.09E+01 1.67E+00
IASL (C)
TCR = 1.0E-05
Tox Basis NC NC NC NC NC NC NC NC NC NC C C NC NC NC NC NC
THQ = 0.2
1.04E+03 4.17E-02 4.17E-01 1.46E+02 6.26E-02 6.26E-02 1.46E+00 1.04E+00 1.46E+00 4.17E+01 6.26E-01 1.68E+00 2.09E+01 2.09E+01 2.09E+01 2.09E+01 1.67E+00
TCR = 1.0E-04
Tox Basis NC NC NC NC NC NC NC NC NC NC NC C NC NC NC NC NC
THQ = 0.2
1.04E+03 4.17E-02 4.17E-01 1.46E+02 6.26E-02 6.26E-02 1.46E+00 1.04E+00 1.46E+00 4.17E+01 6.26E-01 1.68E+01 2.09E+01 2.09E+01 2.09E+01 2.09E+01 1.67E+00
Tox Basis NC NC NC NC NC NC NC NC NC NC NC C NC NC NC NC NC
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
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 75-86-5 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 92-52-4 108-60-1 111-44-4 542-88-1 10294-34-5
Acetaldehyde Acetone Acetone Cyanohydrin 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-chloro-1-methylethyl) ether Bis(2-chloroethyl)ether Bis(chloromethyl)ether Boron Trichloride
6.89E+02 4.52E+06 7.85E+02 8.87E+03 8.37E-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 1.64E+00 1.64E+00 6.34E+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 9.26E+02 1.22E+02 2.54E-03 No S
Cgw&Csg Tox Basis 6.26E+01 NC 2.16E+05 NC 1.39E+01 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 9.36E+01 C 2.84E+00 C 1.51E-02 C 1.39E+02 NC
SGSL =IASL (B) x 1/AF
1. Based on June 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 4.17E-01 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 2.81E-01 8.51E-03 4.53E-05 4.17E+00
IASL (C)
TCR = 1.0E-05
Tox Basis C NC NC NC NC NC C C NC NC NC NC C C C C C C C C C C C NC C C C NC
THQ = 0.2
1.88E+00 6.47E+03 4.17E-01 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 2.81E+00 8.51E-02 4.53E-04 4.17E+00
TCR = 1.0E-04
Tox Basis NC 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 C NC
THQ = 0.2
1.88E+00 6.47E+03 4.17E-01 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 2.81E+01 8.51E-01 4.53E-03 4.17E+00
Tox Basis NC 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 C NC
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
7637-07-2 107-04-0 108-86-1 74-97-5 75-27-4 75-25-2 74-83-9 106-99-0 78-92-2 75-15-0 56-23-5 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 88-73-3 76-06-2 98-82-8 57-12-5 110-82-7 108-94-1 110-83-8 72-55-9 96-12-8 124-48-1 106-93-4 74-95-3 764-41-0
Boron Trifluoride Bromo-2-chloroethane, 1Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Butadiene, 1,3Butyl alcohol, secCarbon Disulfide Carbon Tetrachloride Chlordane Chlorine Chlorine Dioxide Chloro-1,1-difluoroethane, 1Chloro-1,3-butadiene, 2Chlorobenzene Chlorobenzotrifluoride, 4Chlorodifluoromethane Chloroform Chloromethane Chloromethyl Methyl Ether Chloronitrobenzene, oChloropicrin Cumene Cyanide (CN-) Cyclohexane Cyclohexanone Cyclohexene DDE, p,p'Dibromo-3-chloropropane, 1,2Dibromochloromethane Dibromoethane, 1,2Dibromomethane (Methylene Bromide) Dichloro-2-butene, 1,4-
No Henrys Law Constant
1.26E+00 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 No Henrys Law Constant
6.54E-02 No Henrys Law Constant
4.34E+03 4.08E-02 8.20E+01 4.41E+01 6.28E+03 8.14E+00 5.21E+01 3.27E+00 5.49E+00 9.96E-01 1.77E+02 1.69E-01 2.04E+02 3.97E+05 1.12E+02 Not sufficiently toxic or volatile
2.81E-01 3.25E+01 1.76E+00 2.48E+01 3.06E-01
SGSL =IASL (B) x 1/AF
9.04E+01 1.56E+00 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 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 6.95E-02 2.78E+00 2.78E+03 5.56E+00 4.17E+04 4.87E+03 6.95E+03 9.65E+00 5.63E-02 3.47E+01 1.56E+00 2.78E+01 2.23E-01
1. Based on June 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 NC NC C C NC NC NC NC C NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC NC C C C C NC C
IASL (B)
TCR = 1.0E-06 THQ = 0.2
2.71E+00 4.68E-03 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 2.81E-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 2.09E-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 1.04E-01 4.68E-03 8.34E-01 6.68E-04
IASL (C)
TCR = 1.0E-05
Tox Basis NC C NC NC C C NC C NC NC C C NC NC NC C NC NC NC C NC C NC NC NC NC NC NC NC C C C C NC C
THQ = 0.2
2.71E+00 4.68E-02 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 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 2.09E-03 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E-01 1.69E-03 1.04E+00 4.68E-02 8.34E-01 6.68E-03
TCR = 1.0E-04
Tox Basis NC C NC NC C C NC NC NC NC C NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC NC C C C C NC C
THQ = 0.2
2.71E+00 4.68E-01 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 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 2.09E-03 8.34E-02 8.34E+01 1.67E-01 1.25E+03 1.46E+02 2.09E+02 2.89E+00 1.69E-02 1.04E+01 4.68E-01 8.34E-01 6.68E-02
Tox Basis NC C NC NC C C NC NC NC NC NC NC NC NC NC C NC NC NC C NC C NC NC NC NC NC NC NC C C C C NC C
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
1476-11-5 110-57-6 95-50-1 106-46-7 75-71-8 75-34-3 107-06-2 75-35-4 78-87-5 542-75-6 77-73-6 60-57-1 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 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
Dichloro-2-butene, cis-1,4Dichloro-2-butene, trans-1,4Dichlorobenzene, 1,2Dichlorobenzene, 1,4Dichlorodifluoromethane Dichloroethane, 1,1Dichloroethane, 1,2Dichloroethylene, 1,1Dichloropropane, 1,2Dichloropropene, 1,3Dicyclopentadiene Dieldrin Difluoroethane, 1,1Dihydrosafrole Diisopropyl Ether Dimethylformamide Dimethylhydrazine, 1,1Dimethylhydrazine, 1,2Dimethylvinylchloride Dioxane, 1,4Epichlorohydrin Epoxybutane, 1,2Ethoxyethanol Acetate, 2Ethoxyethanol, 2Ethyl Acetate Ethyl Chloride (Chloroethane) Ethyl Methacrylate Ethylbenzene Ethylene Oxide Ethyleneimine Formaldehyde Formic Acid Furfural Glycidyl Heptachlor
2.46E-01 2.46E-01 5.32E+02 2.59E+01 1.49E+00 7.64E+01 2.24E+01 3.91E+01 7.24E+00 2.87E+01 2.45E-02 1.49E+01 1.01E+04 3.20E-01 1.40E+03 2.07E+06 1.47E+02 6.18E+01 6.52E-01 2.86E+04 1.68E+02 5.67E+02 9.57E+04 2.17E+06 2.67E+03 4.60E+03 2.67E+03 3.49E+01 5.27E+01 2.99E+00 1.48E+05 9.17E+03 6.77E+04 6.51E+03 1.80E+00
SGSL =IASL (B) x 1/AF
2.23E-01 2.23E-01 1.39E+03 8.51E+01 6.95E+02 5.85E+02 3.60E+01 1.39E+03 2.78E+01 1.39E+02 2.09E+00 2.03E-01 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 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
1. Based on June 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 NC C NC C C NC NC NC NC C NC C NC NC NC C C C NC NC NC NC NC NC NC C C C NC NC NC NC C
IASL (B)
TCR = 1.0E-06 THQ = 0.2
6.68E-04 6.68E-04 4.17E+01 2.55E-01 2.09E+01 1.75E+00 1.08E-01 4.17E+01 2.81E-01 7.02E-01 6.26E-02 6.10E-04 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 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
IASL (C)
TCR = 1.0E-05
Tox Basis C C NC C NC C C NC C C NC C NC C NC NC NC C C C NC NC NC NC NC NC NC C C C C NC NC NC C
THQ = 0.2
6.68E-03 6.68E-03 4.17E+01 2.55E+00 2.09E+01 1.75E+01 1.08E+00 4.17E+01 8.34E-01 4.17E+00 6.26E-02 6.10E-03 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 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
TCR = 1.0E-04
Tox Basis C C NC C NC C C NC NC NC NC C NC C NC NC NC C C C NC NC NC NC NC NC NC C C C NC NC NC NC C
THQ = 0.2
6.68E-02 6.68E-02 4.17E+01 2.55E+01 2.09E+01 1.75E+02 1.46E+00 4.17E+01 8.34E-01 4.17E+00 6.26E-02 6.10E-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 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
Tox Basis C C NC C NC C NC NC NC NC NC C NC C NC NC NC C C NC NC NC NC NC NC NC NC C C C NC NC NC NC C
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
1024-57-3
Heptachlor Epoxide
39635-31-9 118-74-1 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
Heptachlorobiphenyl, 2,3,3',4,4',5,5'- (PCB 189) 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
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)
1.26E+01
3.60E-01
Cgw&Csg Tox Basis C
Not sufficiently toxic or volatile
8.51E-01 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
C 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
8.78E-01 4.37E+00 Not sufficiently toxic or volatile Not sufficiently toxic or volatile
3.85E-03 3.03E+00 3.78E-02 1.61E+01 1.06E+00 1.98E+00 1.64E+03 2.30E+02 5.00E-08 3.07E+01 6.87E+02 1.19E+00 1.26E+05 1.34E-01 6.20E+02 2.24E+07 1.64E+04 3.09E+05 5.13E+02 4.48E+05 3.23E+03 1.11E+05 5.51E+00 1.12E+04 6.78E+01 4.50E+03 9.42E+02 1.66E-01
SGSL =IASL (B) x 1/AF
1. Based on June 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
1.08E-03
Tox Basis C
2.55E-03 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
C 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
THQ = 0.2
IASL (C) TCR = 1.0E-04
1.08E-02
Tox Basis C
2.55E-02 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
C 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
THQ = 0.2
1.08E-01
Tox Basis C
2.55E-01 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
C 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
THQ = 0.2
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
91-20-3 13463-39-3 98-95-3 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 94-59-7 100-42-5 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
Naphthalene Nickel Carbonyl Nitrobenzene 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 Safrole Styrene 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, 1,2,4-
3.48E+01 No Henrys Law Constant
7.16E+02 8.92E+02 2.14E+00 9.74E+00 3.25E+01 7.57E+01 3.00E-02 2.21E+00 3.29E+00 2.17E+00 3.29E+00 9.51E-04 4.08E+00 9.17E-02 6.27E-02 5.56E+02 4.86E+02 7.81E+01 1.11E+07 2.20E+03 4.34E+02 1.86E+03 3.62E-04 2.80E-01 3.71E+01 3.23E+01 1.15E+01 8.16E+03 1.45E+05 No Henrys Law Constant
3.84E+03 2.91E+02 7.19E+00
SGSL =IASL (B) x 1/AF
2.09E+01 9.73E-02 2.34E+01 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 5.36E+00 6.95E+03 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
1. Based on June 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 NC C C C C NC C C C C C NC NC NC NC NC NC NC NC C NC C C C C NC NC NC NC NC NC NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
8.26E-02 2.92E-03 7.02E-02 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 1.61E-02 2.09E+02 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
IASL (C)
TCR = 1.0E-05
Tox Basis C NC C C C C C C NC C C C C C NC NC NC NC NC NC NC C C NC C C C C NC NC NC NC NC NC NC
THQ = 0.2
6.26E-01 2.92E-03 7.02E-01 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 1.61E-01 2.09E+02 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
TCR = 1.0E-04
Tox Basis NC NC C NC C C C C NC C C C C C NC NC NC NC NC NC NC NC C NC C C C C NC NC NC NC NC NC NC
THQ = 0.2
6.26E-01 2.92E-03 1.88E+00 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 1.61E+00 2.09E+02 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
Tox Basis NC NC NC NC C C C C NC C C C C C NC NC NC NC NC NC NC NC C NC C C C C NC NC NC NC NC NC NC
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
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
71-55-6 79-00-5 79-01-6 75-69-4 96-18-4 96-19-5 121-44-8 526-73-8 95-63-6 108-05-4 593-60-2 75-01-4 108-38-3 95-47-6 106-42-3 1330-20-7 140-88-5
Trichloroethane, 1,1,1Trichloroethane, 1,1,2Trichloroethylene Trichlorofluoromethane Trichloropropane, 1,2,3Trichloropropene, 1,2,3Triethylamine Trimethylbenzene, 1,2,3Trimethylbenzene, 1,2,4Vinyl Acetate Vinyl Bromide Vinyl Chloride Xylene, mXylene, oXylene, PXylenes Ethyl Acrylate
1.48E+03 1.24E+00 1.04E+00 3.68E+01 4.46E+00 8.70E-02 2.40E+02 5.85E+00 5.80E+00 2.00E+03 1.24E+00 1.47E+00 7.11E+01 9.85E+01 7.40E+01 9.85E+01 1.20E+02
SGSL =IASL (B) x 1/AF
3.48E+04 1.39E+00 1.39E+01 4.87E+03 2.09E+00 2.09E+00 4.87E+01 3.48E+01 4.87E+01 1.39E+03 2.09E+01 5.59E+01 6.95E+02 6.95E+02 6.95E+02 6.95E+02 5.56E+01
1. Based on June 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 NC NC NC NC NC C NC NC NC NC NC
IASL (B)
TCR = 1.0E-06 THQ = 0.2
1.04E+03 4.17E-02 4.17E-01 1.46E+02 6.26E-02 6.26E-02 1.46E+00 1.04E+00 1.46E+00 4.17E+01 8.77E-02 1.68E-01 2.09E+01 2.09E+01 2.09E+01 2.09E+01 1.67E+00
IASL (C)
TCR = 1.0E-05
Tox Basis NC NC NC NC NC NC NC NC NC NC C C NC NC NC NC NC
THQ = 0.2
1.04E+03 4.17E-02 4.17E-01 1.46E+02 6.26E-02 6.26E-02 1.46E+00 1.04E+00 1.46E+00 4.17E+01 6.26E-01 1.68E+00 2.09E+01 2.09E+01 2.09E+01 2.09E+01 1.67E+00
TCR = 1.0E-04
Tox Basis NC NC NC NC NC NC NC NC NC NC NC C NC NC NC NC NC
THQ = 0.2
1.04E+03 4.17E-02 4.17E-01 1.46E+02 6.26E-02 6.26E-02 1.46E+00 1.04E+00 1.46E+00 4.17E+01 6.26E-01 1.68E+01 2.09E+01 2.09E+01 2.09E+01 2.09E+01 1.67E+00
Tox Basis NC NC NC NC NC NC NC NC NC NC NC C NC NC NC NC NC
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
DIVISION OF WASTE MANAGEMENT NON-RESIDENTIAL VAPOR INTRUSION SCREENING CONCENTRATIONS Not To Be Used for Structures Frequented or Occupied By Children
1. Based on June 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
