Potential Defined List of Toxic Air Contaminants Based on the Draft Air Toxics Workgroup Methodology May 13, 2013 Future TAC Basis Reason for HAP ITSL CAS No. Chemical Name Ex.#1 for Yes No, etc. ? (ug/m3) AvgT epoxy resin solution YES ITSL no 6 annual amyl acetate (mixture) NO > 75%tile no 1100 24hr cyclopentyldichlorosilane NO default no 0.1 annual dicyclopentyldichlorosilane NO default no 0.1 annual disiloxane NO default no 0.1 annual n-butylglucamine YES ITSL no 6.4 annual purafect 4000g YES ITSL no 0.02 1hr biosam tp-1.5 YES ITSL no 0.02 1hr 2-(1-ethoxyethoxy)-6-(trifluoromethyl)-benzenethiol NO default no 0.1 annual 2-mercapto-3-(trifluoromethyl)-phenol NO default no 0.1 annual 4-chloro-2-ethyoxy-6-fluoropyrimidine NO default no 0.1 annual n-chloro-2,6-difluorobenzamide NO default no 0.1 annual cyclic (phme)2(me)2, d4 NO default no 0.1 annual 100 sxl NO default unknown 0.1 annual atlox 848 NO default no 0.1 annual ethomeen t/30 NO default no 0.1 annual sponto 11 NO default no 0.1 annual sponto 723 NO default no 0.1 annual t-det c-40 NO default no 0.1 annual witconol al 69-66 NO default no 0.1 annual heptamethyl-1-vinyl-1,7-dichlorotetrasilazane NO default no 0.1 annual fyre-zyme YES ITSL no 0.15 annual 1,1,2,4-tetramethyl-1-1-1-sila-2-aza-cyclopentane YES ITSL no 0.7 annual polyglycol 26-3 YES ITSL no 16 annual ad acid YES ITSL no 17 annual triethylammonium suleptanate YES ITSL no 17 annual see spec. polycyclic aromatic hydrocarbons (pahs) NO HAP comps. yes POM o-(1-ethoxyethyl)-2-(propylthio)-3- (trifluoromethyl)phenol NO default no 0.1 annual 50-00-0 formaldehyde YES Carc yes this chemical 9 8hr 50-03-3 hydrocortisone acetate YES ITSL no 15 annual 50-21-5 lactic acid YES ITSL no 7 annual 50-28-2 estradiol NO default no 0.1 annual 50-29-3 ddt YES Carc yes POM 50-32-8 benzo(a)pyrene YES Carc7 yes POM 51-28-5 2,4-dinitrophenol YES ITSL yes this chemical 7 24hr 51-79-6 Ethyl carbamate (Urethane) YES HAP YES 53-36-1 methyl predisolone acetate YES ITSL no 43 annual 53-70-3 dibenz(a,h)anthracene YES Carc7 yes POM 56-23-5 carbon tetrachloride YES Carc yes this chemical 100 24hr 56-49-5 3-methyl cholanthrene YES Cal Carc yes POM 56-55-3 benz(a)anthracene YES Carc7 yes POM 56-81-5 glycerol YES ITSL no 100 8hr 57-11-4 stearic acid YES ITSL no 100 8hr Page 1 of 29 Potential Defined List of Toxic Air Contaminants Based on the Draft Air Toxics Workgroup Methodology May 13, 2013 Future TAC Basis Reason for HAP ITSL CAS No. Chemical Name Ex.#1 for Yes No, etc. ? (ug/m3) AvgT 57-12-5 cyanide YES HAP yes cyanides 50 1hr 57-15-8 chlorobutanol NO default no 0.1 annual 57-41-0 phenytoin YES Carc yes POM 57-55-6 propylene glycol NO > 75%tile no 6000 annual 57-74-9 Chlordane YES HAP YES 57-83-0 progesterone NO default no 0.1 annual 57-97-9 7,12-dimethyl benzanthracene YES Cal Carc yes POM 58-36-6 10,10'-oxybisphenoxarsine oxide YES ITSL no 0.2 annual 60-29-7 ethyl ether NO > 75%tile no 12000 8hr 60-34-4 methyl hydrazine YES ITSL yes this chemical 0.03 24hr 60-57-1 dieldrin YES Carc no 62-53-3 aniline YES Carc yes this chemical 1 annual 62-73-7 dichlorvos YES ITSL yes this chemical 0.5 24hr 62-75-9 n-nitrosodimethylamine YES Carc yes this chemical 63-05-8 androstenedione YES ITSL no 17 annual 64-02-8 ethylenediamine tetra-acetic acid, tetrasodium salt NO default no 0.1 annual 64-04-0 beta phenylethylamine NO default no 0.1 annual 64-17-5 ethyl alcohol NO > 75%tile no 19000 8hr 64-18-6 formic acid YES ITSL no 2 24hr 64-19-7 acetic acid YES ITSL no 250 8hr 64-67-5 diethyl sulfate YES ITSL yes this chemical 1 annual 65-85-0 benzoic acid NO PM Low Tox no 66-25-1 hexanaldehyde YES ITSL no 2 annual 67-56-1 methanol NO HAP > 75%tile yes this chemical 3250 1hr 67-63-0 isopropyl alcohol YES ITSL no 220 24hr 67-64-1 acetone NO > 75%tile no 5900 8hr 67-66-3 chloroform YES Carc yes this chemical 67-68-5 dimethylsulfoxide YES ITSL no 20 annual 67-72-1 hexachloroethane YES Carc yes this chemical 30 annual 68-12-2 N,N-dimethylformamide YES ITSL yes this chemical 30 24hr 71-23-8 n-propyl alcohol NO > 75%tile no 730 annual 71-36-3 n-butanol YES ITSL no 350 24hr 71-41-0 amyl alcohol NO > 75%tile no 120 annual 71-43-2 benzene YES Carc yes this chemical 30 annual 71-55-6 methyl chloroform NO HAP > 75%tile yes this chemical 6000 24hr 72-54-8 DDD (TDE) YES Carc no 72-55-9 DDE (p,p'-DDE) - CAS# 3547044 in original list YES HAP YES 74-83-9 methyl bromide YES ITSL yes this chemical 5 24hr 74-85-1 ethylene NO > 75%tile no 6240 24hr 74-87-3 methyl chloride YES Carc yes this chemical 90 24hr 74-88-4 Methyl iodide (Iodomethane) YES HAP YES 74-89-5 methylamine YES ITSL no 64 8hr 74-90-8 hydrogen cyanide YES ITSL yes cyanides 0.8 annual 74-93-1 methyl mercaptan YES ITSL no 10 1hr Page 2 of 29 Potential Defined List of Toxic Air Contaminants Based on the Draft Air Toxics Workgroup Methodology May 13, 2013 Future TAC Basis Reason for HAP ITSL CAS No. Chemical Name Ex.#1 for Yes No, etc. ? (ug/m3) AvgT 74-97-5 chlorobromomethane NO > 75%tile no 10600 8hr 74-99-7 methyl acetylene NO > 75%tile no 16500 8hr 75-00-3 ethyl chloride NO HAP > 75%tile yes this chemical 10000 24hr 75-01-4 vinyl chloride YES Carc yes this chemical 100 24hr 75-04-7 ethylamine YES ITSL no 92 8hr 75-05-8 acetonitrile YES ITSL yes this chemical 60 24hr 75-07-0 acetaldehyde YES Carc yes this chemical 9 24hr 75-09-2 methylene chloride YES Carc yes this chemical 2000 annual 75-12-7 formamide YES Carc no 600 24hr 75-15-0 carbon disulfide YES HAP yes this chemical 700 24hr 75-18-3 dimethylsulfide YES ITSL no 7 annual 75-21-8 ethylene oxide YES Carc yes this chemical 75-25-2 bromoform YES Carc yes this chemical 75-27-4 bromodichloromethane YES Carc no 75-28-5 isobutane NO > 75%tile no 23800 8hr 75-29-6 2-chloropropane YES ITSL no 100 24hr 75-31-0 isopropylamine YES ITSL no 120 8hr 75-34-3 1,1-dichloroethane YES HAP yes this chemical 500 24hr 75-35-4 vinylidene chloride (1,1-dichloroethylene) YES ITSL yes this chemical 200 24hr 75-36-5 acetyl chloride NO default no 0.1 annual 75-37-6 1,1-difluoroethane NO > 75%tile no 40000 24hr 75-38-7 vinylidene fluoride YES ITSL no 30 24hr 75-44-5 phosgene YES ITSL yes this chemical 0.3 24hr 75-45-6 chlorodifluoromethane NO > 75%tile no 50000 24hr 75-50-3 trimethylamine YES ITSL no 120 8hr 75-52-5 nitromethane YES Carc no 70 24hr 75-54-7 methyldichlorosilane YES ITSL no 4 annual 75-55-8 1,2-propylenimine YES HAP yes this chemical 5 8hr 75-56-9 propylene oxide YES Carc yes this chemical 30 24hr 75-64-9 t-butylamine NO > 75%tile no 60 annual 75-65-0 t-butanol NO > 75%tile no 1890 24hr 75-68-3 1-chloro-1,1-difluoroethane NO > 75%tile no 50000 24hr 75-69-4 trichlorofluoromethane NO > 75%tile no 56200 1hr 75-71-8 dichlorodifluoromethane NO > 75%tile no 49500 8hr 75-75-2 methane sulfonic acid YES ITSL no 1.4 annual 75-76-3 tetramethylsilane NO > 75%tile no 1300 annual 75-77-4 trimethylchlorosilane YES ITSL no 6 annual 75-78-5 dimethyldichlorosilane YES ITSL no 6.2 annual 75-79-6 methyltrichlorosilane NO > 75%tile no 109 annual 75-94-5 vinyltrichlorosilane YES ITSL no 7 annual 76-05-1 trifluoroacetic acid YES ITSL no 8 annual 76-13-1 1,1,2-trichloro-1,2,2-trifluoroethane NO > 75%tile no 19140 24hr 76-14-2 dichlorotetrafluoroethan NO > 75%tile no 69000 8hr 76-44-8 heptachlor YES Carc yes this chemical Page 3 of 29 Potential Defined List of Toxic Air Contaminants Based on the Draft Air Toxics Workgroup Methodology May 13, 2013 Future TAC Basis Reason for HAP ITSL CAS No. Chemical Name Ex.#1 for Yes No, etc. ? (ug/m3) AvgT 76-83-5 triphenyl methyl chloride YES ITSL yes POM 17 annual 77-47-4 hexachlorocyclopentadiene YES ITSL yes this chemical 0.2 24hr 77-48-5 1,3-dibromo-5,5-dimethylhydantoin YES ITSL no 2 8hr 77-58-7 dibutyl tin dilaurate YES ITSL no 5 8hr 77-73-6 dicyclopentadiene YES ITSL no 1 24hr 77-76-9 2,2-dimethoxypropane NO default no 0.1 annual 77-78-1 dimethyl sulfate YES HAP yes this chemical 0.5 8hr 77-93-0 triethyl citrate NO > 75%tile no 290 annual 78-07-9 ethyltriethoxysilane NO > 75%tile no 44 annual 78-10-4 ethyl silicate YES ITSL no 850 8hr 78-59-1 isophorone YES Carc yes this chemical 280 1hr 78-78-4 2-methyl butane NO > 75%tile no 17700 8hr 78-79-5 isoprene YES Carc no 78-83-1 isobutyl alcohol YES ITSL no 1500 8hr 78-84-2 isobutyraldehyde YES ITSL no 160 24hr 78-87-5 propylene dichloride YES ITSL yes this chemical 4 24hr 78-92-2 sec-butanol NO > 75%tile no 3000 8hr 78-93-3 methyl ethyl ketone NO > 75%tile delisted HAP 5000 24hr 78-96-6 monoisopropanolamine YES ITSL no 15 annual 79-00-5 1,1,2-trichloroethane YES Carc yes this chemical 79-01-6 trichloroethylene YES Carc yes this chemical 2 annual 79-06-1 acrylamide YES Carc yes this chemical 6 24hr 79-09-4 propionic acid YES ITSL no 300 8hr 79-10-7 acrylic acid YES ITSL yes this chemical 1 24hr 79-11-8 Chloroacetic acid YES HAP YES 79-14-1 hydroxyacetic acid/ glycolic acid YES ITSL no 4 annual 79-20-9 methyl acetate NO > 75%tile no 6100 8hr 79-24-3 nitroethane YES ITSL no 60 24hr 79-29-8 2,3-dimethylbutane NO > 75%tile no 3500 8hr 79-31-2 isobutyric acid YES ITSL no 0.9 annual 79-34-5 1,1,2,2-tetrachloroethane YES Carc yes this chemical 79-41-4 methacrylic acid YES ITSL no 30 24hr 79-46-9 2-nitropropane YES Carc yes this chemical 20 24hr 79-92-5 camphene NO > 75%tile no 80 annual 80-15-9 cumene hydroperoxide YES ITSL no 6 24hr 80-43-3 dicumyl peroxide NO default no 0.1 annual 80-56-8 pinene, alpha YES ITSL no 1120 8hr 80-62-6 methyl methacrylate NO HAP > 75%tile yes this chemical 700 24hr 80-73-9 n,n'-dimethylethyleneurea NO default no 0.1 annual 82-68-8 pentachloronitrobenzene YES ITSL yes this chemical 11 24hr 83-32-9 acenaphthene YES ITSL yes POM 210 24hr 84-66-2 diethyl phthalate YES ITSL no 50 8hr 84-74-2 dibutyl phthalate YES HAP yes this chemical 50 8hr 85-01-8 phenanthrene NO default yes POM 0.1 annual Page 4 of 29 Potential Defined List of Toxic Air Contaminants Based on the Draft Air Toxics Workgroup Methodology May 13, 2013 Future TAC Basis Reason for HAP ITSL CAS No.