Appendix II to Part 258—List of Hazardous Inorganic and Organic Constituents

Appendix II - Appendix II to Part 258—List of Hazardous Inorganic and Organic Constituents

Common name 1	CAS RN 2	Chemical abstracts service index name 3	Acenaphthene	83-32-9	Acenaphthylene, 1,2-dihydro-	Acenaphthylene	208-96-8	Acenaphthylene	Acetone	67-64-1	2-Propanone	Acetonitrile; Methyl cyanide	75-05-8	Acetonitrile	Acetophenone	98-86-2	Ethanone, 1-phenyl-	2-Acetylaminofluorene; 2-AAF	53-96-3	Acetamide, N-9H-fluoren-2-yl-	Acrolein	107-02-8	2-Propenal	Acrylonitrile	107-13-1	2-Propenenitrile	Aldrin	309-00-2	1,4:5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-(1,4,4a,5,8,8a)-	Allyl chloride	107-05-1	1-Propene, 3-chloro-	4-Aminobiphenyl	92-67-1	[1,1′-Biphenyl]-4-amine	Anthracene	120-12-7	Anthracene	Antimony	(Total)	Antimony	Arsenic	(Total)	Arsenic	Barium	(Total)	Barium	Benzene	71-43-2	Benzene	Benzo[a]anthracene; Benzanthracene	56-55-3	Benz[a]anthracene	Benzo[b]fluoranthene	205-99-2	Benz[e]acephenanthrylene	Benzo[k]fluoranthene	207-08-9	Benzo[k]fluoranthene	Benzo[ghi]perylene	191-24-2	Benzo[ghi]perylene	Benzo[a]pyrene	50-32-8	Benzo[a]pyrene	Benzyl alcohol	100-51-6	Benzenemethanol	Beryllium	(Total)	Beryllium	alpha-BHC	319-84-6	Cyclohexane, 1,2,3,4,5,6-hexachloro-,(1α,2α,3β,4α,5β,6β)-	beta-BHC	319-85-7	Cyclohexane, 1,2,3,4,5,6-hexachloro-,(1α,2β,3α,4β,5α,6β)-	delta-BHC	319-86-8	Cyclohexane, 1,2,3,4,5,6-hexachloro-,(1α,2α,3α,4β,5α,6β)-	gamma-BHC; Lindane	58-89-9	Cyclohexane, 1,2,3,4,5,6- hexachloro-,(1α,2α, 3β, 4α,5α,6β)-	Bis(2-chloroethoxy)methane	111-91-1	Ethane, 1,1′-[methylenebis (oxy)]bis [2-chloro-	Bis(2-chloroethyl)ether; Dichloroethyl ether	111-44-4	Ethane, 1,1′-oxybis[2-chloro-	Bis(2-chloro-1-methylethyl) ether; 2,2′-Dichlorodiisopropyl ether; DCIP, See footnote 4	108-60-1	Propane, 2,2′-oxybis[1-chloro-	Bis(2-ethylhexyl) phthalate	117-81-7	1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl)ester	Bromochloromethane; Chlorobromethane	74-97-5	Methane, bromochloro-	Bromodichloromethane; Dibromochloromethane	75-27-4	Methane, bromodichloro-	Bromoform; Tribromomethane	75-25-2	Methane, tribromo-	4-Bromophenyl phenyl ether	101-55-3	Benzene, 1-bromo-4-phenoxy-	Butyl benzyl phthalate; Benzyl butyl phthalate	85-68-7	1,2-Benzenedicarboxylic acid, butyl phenylmethyl ester	Cadmium	(Total)	Cadmium	Carbon disulfide	75-15-0	Carbon disulfide	Carbon tetrachloride	56-23-5	Methane, tetrachloro-	Chlordane	See footnote 5	4,7-Methano-1H-indene, 1,2,4,5,6,7,8,8-octachloro-2,3,3a,4,7,7a-hexahydro-	p-Chloroaniline	106-47-8	Benzenamine, 4-chloro-	Chlorobenzene	108-90-7	Benzene, chloro-	Chlorobenzilate	510-15-6	Benzeneacetic acid, 4-chloro- -(4-chlorophenyl)- -hydroxy-, ethyl ester.	p-Chloro-m-cresol; 4-Chloro-3-methylphenol	59-50-7	Phenol, 4-chloro-3-methyl-	Chloroethane; Ethyl chloride	75-00-3	Ethane, chloro-	Chloroform; Trichloromethane	67-66-3	Methane, trichloro-	2-Chloronaphthalene	91-58-7	Naphthalene, 2-chloro-	2-Chlorophenol	95-57-8	Phenol, 2-chloro-	4-Chlorophenyl phenyl ether	7005-72-3	Benzene, 1-chloro-4-phenoxy-	Chloroprene	126-99-8	1,3-Butadiene, 2-chloro-	Chromium	(Total)	Chromium	Chrysene	218-01-9	Chrysene	Cobalt	(Total)	Cobalt	Copper	(Total)	Copper	m-Cresol; 3-Methylphenol	108-39-4	Phenol, 3-methyl-	o-Cresol; 2-Methylphenol	95-48-7	Phenol, 2-methyl-	p-Cresol; 4-Methylphenol	106-44-5	Phenol, 4-methyl-	Cyanide	57-12-5	Cyanide	2,4-D; 2,4-Dichlorophenoxyacetic acid	94-75-7	Acetic acid, (2,4-dichlorophenoxy)-	4,4′-DDD	72-54-8	Benzene 1,1′-(2,2-dichloroethylidene) bis[4-chloro-	4,4′-DDE	72-55-9	Benzene, 1,1′-(dichloroethenylidene) bis[4-chloro-	4,4′-DDT	50-29-3	Benzene, 1,1′-(2,2,2-trichloroethylidene) bis[4-chloro-	Diallate	2303-16-4	Carbamothioic acid, bis(1-methylethyl)-, S- (2,3-dichloro-2-propenyl) ester.	Dibenz[a,h]anthracene	53-70-3	Dibenz[a,h]anthracene	Dibenzofuran	132-64-9	Dibenzofuran	Dibromochloromethane; Chlorodibromomethane	124-48-1	Methane, dibromochloro-	1,2-Dibromo-3-chloropropane; DBCP	96-12-8	Propane, 1,2-dibromo-3-chloro-	1,2-Dibromoethane; Ethylene dibromide; EDB	106-93-4	Ethane, 1,2-dibromo-	Di-n-butyl phthalate	84-74-2	1,2-Benzenedicarboxylic acid, dibutyl ester	o-Dichlorobenzene; 1,2-Dichlorobenzene	95-50-1	Benzene, 1,2-dichloro-	m-Dichlorobenzene; 1,3-Dichlorobenzene	541-73-1	Benzene, 1,3-dichloro-	p-Dichlorobenzene; 1,4-Dichlorobenzene	106-46-7	Benzene, 1,4-dichloro-	3,3′-Dichlorobenzidine	91-94-1	[1,1′-Biphenyl]-4,4′-diamine, 3,3′-dichloro-	trans-1,4-Dichloro-2-butene	110-57-6	2-Butene, 1,4-dichloro-, (E)-	Dichlorodifluoromethane; CFC 12	75-71-8	Methane, dichlorodifluoro-	1,1-Dichloroethane; Ethyldidene chloride	75-34-3	Ethane, 1,1-dichloro-	1,2-Dichloroethane; Ethylene dichloride	107-06-2	Ethane, 1,2-dichloro-	1,1-Dichloroethylene; 1,1-Dichloroethene;	75-35-4	Ethene, 1,1-dichloro-	Vinylidene chloride cis-1,2-Dichloroethylene; cis-1,2-Dichloroethene	156-59-2	Ethene, 1,2-dichloro-(Z)-	trans-1,2-Dichloroethylene; trans-1,2-Dichloroethene	156-60-5	Ethene, 1,2-dichloro-, (E)-	2,4-Dichlorophenol	120-83-2	Phenol, 2,4-dichloro-	2,6-Dichlorophenol	87-65-0	Phenol, 2,6-dichloro-	1,2-Dichloropropane	78-87-5	Propane, 1,2-dichloro-	1,3-Dichloropropane; Trimethylene dichloride	142-28-9	Propane, 1,3-dichloro-	2,2-Dichloropropane; Isopropylidene chloride	594-20-7	Propane, 2,2-dichloro-	1,1-Dichloropropene	563-58-6	1-Propene, 1,1-dichloro-	cis-1,3-Dichloropropene	10061-01-5	1-Propene, 1,3-dichloro-, (Z)-	trans-1,3-Dichloropropene	10061-02-6	1-Propene, 1,3-dichloro-, (E)-	Dieldrin	60-57-1	2,7:3,6-Dimethanonaphth [2,3-b]oxirene, 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1aα,2β,2aα,3β,6β,6aα,7β,7aα)-	Diethyl phthalate	84-66-2	1,2-Benzenedicarboxylic acid, diethyl ester	O,O-Diethyl O-2-pyrazinyl phosphorothioate; Thionazin	297-97-2	Phosphorothioic acid, O,O-diethyl O-pyrazinyl ester.	Dimethoate	60-51-5	Phosphorodithioic acid, O,O-dimethyl S-[2-(methylamino)-2-oxoethyl] ester	p-(Dimethylamino)azobenzene	60-11-7	Benzenamine, N,N-dimethyl-4-(phenylazo)-	7,12-Dimethylbenz[a]anthracene	57-97-6	Benz[a]anthracene, 7,12-dimethyl-	3,3′-Dimethylbenzidine	119-93-7	[1,1′-Biphenyl]-4,4′-diamine, 3,3′-dimethyl-	alpha, alpha-Dimethylphenethylamine	122-09-8	Benzeneethanamine, α,α-dimethyl-	2,4-Dimethylphenol; m-Xylenol	105-67-9	Phenol, 2,4-dimethyl-	Dimethyl phthalate	131-11-3	1,2-Benzenedicarboxylic acid, dimethyl ester	m-Dinitrobenzene	99-65-0	Benzene, 1,3-dinitro-	4,6-Dinitro-o-cresol; 4,6-Dinitro-2-methylphenol	534-52-1	Phenol, 2-methyl-4,6-dinitro-	2,4-Dinitrophenol	51-28-5	Phenol, 2,4-dinitro-	2,4-Dinitrotoluene	121-14-2	Benzene, 1-methyl-2,4-dinitro-	2,6-Dinitrotoluene	606-20-2	Benzene, 2-methyl-1,3-dinitro-	Dinoseb; DNBP; 2-sec-Butyl-4,6-dinitrophenol	88-85-7	Phenol, 2-(1-methylpropyl)-4,6-dinitro-	Di-n-octyl phthalate	117-84-0	1,2-Benzenedicarboxylic acid, dioctyl ester	Diphenylamine	122-39-4	Benzenamine, N-phenyl-	Disulfoton	298-04-4	Phosphorodithioic acid, O,O-diethyl S-[2- (ethylthio)ethyl] ester	Endosulfan I	959-98-8	6,9-Methano-2,4,3-benzodiox-athiepin, 6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-, 3-oxide,	Endosulfan II	33213-65-9	6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-hexachloro- 1,5,5a,6,9,9a-hexahydro-, 3-oxide, (3α,5aα,6β,9β, 9aα)-	Endosulfan sulfate	1031-07-8	6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-, 3,3-dioxide	Endrin	72-20-8	2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1aα, 2β,2aβ, 3α,6α,6aβ,7β,7aα)-	Endrin aldehyde	7421-93-4	1,2,4-Methenocyclo-penta[cd]pentalene-5-carboxaldehyde,2,2a,3,3,4,7-hexachlorodecahydro- (1α,2β,2aβ,4β,4aβ,5β,6aβ,6bβ,7R*)-	Ethylbenzene	100-41-4	Benzene, ethyl-	Ethyl methacrylate	97-63-2	2-Propenoic acid, 2-methyl-, ethyl ester	Ethyl methanesulfonate	62-50-0	Methanesulfonic acid, ethyl ester	Famphur	52-85-7	Phosphorothioic acid, O-[4-[(dimethylamino)sulfonyl]phenyl]-O,O-dimethyl ester	Fluoranthene	206-44-0	Fluoranthene	Fluorene	86-73-7	9H-Fluorene	Heptachlor	76-44-8	4,7-Methano-1H-indene,1,4,5,6,7,8,8-heptachloro-3a,4,7,7a-tetrahydro-	Heptachlor epoxide	1024-57-3	2,5-Methano-2H-indeno[1,2-b]oxirene, 2,3,4,5,6,7,7-heptachloro-1a,1b,5,5a,6,6a,-hexahydro-,(1aα,1bβ,2α,5α,5aβ,6β,6aα)	Hexachlorobenzene	118-74-1	Benzene, hexachloro-	Hexachlorobutadiene	87-68-3	1,3-Butadiene, 1,1,2,3,4,4-hexachloro-	Hexachlorocyclopentadiene	77-47-4	1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloro-	Hexachloroethane	67-72-1	Ethane, hexachloro-	Hexachloropropene	1888-71-7	1-Propene, 1,1,2,3,3,3-hexachloro-	2-Hexanone; Methyl butyl ketone	591-78-6	2-Hexanone	Indeno(1,2,3-cd)pyrene	193-39-5	Indeno[1,2,3-cd]pyrene	Isobutyl alcohol	78-83-1	1-Propanol, 2-methyl-	Isodrin	465-73-6	1,4,5,8-Dimethanonaphthalene,1,2,3,4,1 0,10-hexachloro-1,4,4a,5,8,8a hexahydro-(1α, 4α, 4aβ,5β,8β,8aβ)-	Isophorone	78-59-1	2-Cyclohexen-1-one, 3,5,5-trimethyl-	Isosafrole	120-58-1	1,3-Benzodioxole, 5-(1-propenyl)-	Kepone	143-50-0	1,3,4-Metheno-2H-cyclobuta-[cd]pentalen-2-one, 1,1a,3,3a,4,5,5,5a,5b,6-decachlorooctahydro-	Lead	(Total)	Lead	Mercury	(Total)	Mercury	Methacrylonitrile	126-98-7	2-Propenenitrile, 2-methyl-	Methapyrilene	91-80-5	1,2,Ethanediamine, N,N-dimethyl-N′-2-pyridinyl-N′-(2-thienylmethyl)-	Methoxychlor	72-43-5	Benzene, 1,1′-(2,2,2,trichloroethylidene)bis [4-methoxy-	Methyl bromide; Bromomethane	74-83-9	Methane, bromo-	Methyl chloride; Chloromethane	74-87-3	Methane, chloro-	3-Methylcholanthrene	56-49-5	Benz[j]aceanthrylene, 1,2-dihydro-3-methyl-	Methyl ethyl ketone; MEK; 2-Butanone	78-93-3	2-Butanone	Methyl iodide; Iodomethane	74-88-4	Methane, iodo-	Methyl methacrylate	80-62-6	2-Propenoic acid, 2-methyl-, methyl ester	Methyl methanesulfonate	66-27-3	Methanesulfonic acid, methyl ester	2-Methylnaphthalene	91-57-6	Naphthalene, 2-methyl-	Methyl parathion; Parathion methyl	298-00-0	Phosphorothioic acid, O,O-dimethyl	4-Methyl-2-pentanone; Methyl isobutyl ketone	108-10-1	2-Pentanone, 4-methyl-	Methylene bromide; Dibromomethane	74-95-3	Methane, dibromo-	Methylene chloride; Dichloromethane	75-09-2	Methane, dichloro-	Naphthalene	91-20-3	Naphthalene	1,4-Naphthoquinone	130-15-4	1,4-Naphthalenedione	1-Naphthylamine	134-32-7	1-Naphthalenamine	2-Naphthylamine	91-59-8	2-Naphthalenamine	Nickel	(Total)	Nickel	o-Nitroaniline; 2-Nitroaniline	88-74-4	Benzenamine, 2-nitro-	m-Nitroaniline; 3-Nitroaniline	99-09-2	Benzenamine, 3-nitro-	p-Nitroaniline; 4-Nitroaniline	100-01-6	Benzenamine, 4-nitro-	Nitrobenzene	98-95-3	Benzene, nitro-	o-Nitrophenol; 2-Nitrophenol	88-75-5	Phenol, 2-nitro-	p-Nitrophenol; 4-Nitrophenol	100-02-7	Phenol, 4-nitro-	N-Nitrosodi-n-butylamine	924-16-3	1-Butanamine, N-butyl-N-nitroso-	N-Nitrosodiethylamine	55-18-5	Ethanamine, N-ethyl-N-nitroso-	N-Nitrosodimethylamine	62-75-9	Methanamine, N-methyl-N-nitroso-	N-Nitrosodiphenylamine	86-30-6	Benzenamine, N-nitroso-N-phenyl-	N-Nitrosodipropylamine; N-Nitroso-N-dipropylamine; Di-n-propylnitrosamine	621-64-7	1-Propanamine, N-nitroso-N-propyl-	N-Nitrosomethylethalamine	10595-95-6	Ethanamine, N-methyl-N-nitroso-	N-Nitrosopiperidine	100-75-4	Piperidine, 1-nitroso-	N-Nitrosopyrrolidine	930-55-2	Pyrrolidine, 1-nitroso-	5-Nitro-o-toluidine	99-55-8	Benzenamine, 2-methyl-5-nitro-	Parathion	56-38-2	Phosphorothioic acid, O,O-diethyl-O-(4-nitrophenyl) ester	Pentachlorobenzene	608-93-5	Benzene, pentachloro-	Pentachloronitrobenzene	82-68-8	Benzene, pentachloronitro-	Pentachlorophenol	87-86-5	Phenol, pentachloro-	Phenacetin	62-44-2	Acetamide, N-(4-ethoxyphenyl)	Phenanthrene	85-01-8	Phenanthrene	Phenol	108-95-2	Phenol	p-Phenylenediamine	106-50-3	1,4-Benzenediamine	Phorate	298-02-2	Phosphorodithioic acid, O,O-diethyl S- [(ethylthio)methyl] ester	Polychlorinated biphenyls; PCBs	See footnote 6	1,1′-Biphenyl, chloro derivatives	Pronamide	23950-58-5	Benzamide, 3,5-dichloro-N-(1,1-dimethyl-2-propynyl)-	Propionitrile; Ethyl cyanide	107-12-0	Propanenitrile	Pyrene	129-00-0	Pyrene	Safrole	94-59-7	1,3-Benzodioxole, 5-(2- propenyl)-	Selenium	(Total)	Selenium	Silver	(Total)	Silver	Silvex; 2,4,5-TP	93-72-1	Propanoic acid, 2-(2,4,5- trichlorophenoxy)-	Styrene	100-42-5	Benzene, ethenyl-	Sulfide	18496-25-8	Sulfide	2,4,5-T; 2,4,5-Trichlorophenoxyacetic acid	93-76-5	Acetic acid, (2,4,5- trichlorophenoxy)-	2,3,7,8-TCDD; 2,3,7,8-Tetrachlorodibenzo- p-dioxin	1746-01-6	Dibenzo[b,e][1,4]dioxin, 2,3,7,8-tetrachloro-	1,2,4,5-Tetrachlorobenzene	95-94-3	Benzene, 1,2,4,5-tetrachloro-	1,1,1,2-Tetrachloroethane	630-20-6	Ethane, 1,1,1,2-tetrachloro-	1,1,2,2-Tetrachloroethane	79-34-5	Ethane, 1,1,2,2-tetrachloro-	Tetrachloroethylene; Tetrachloroethene; Perchloroethylene	127-18-4	Ethene, tetrachloro-	2,3,4,6-Tetrachlorophenol	58-90-2	Phenol, 2,3,4,6-tetrachloro-	Thallium	(Total)	Thallium	Tin	(Total)	Tin	Toluene	108-88-3	Benzene, methyl-	o-Toluidine	95-53-4	Benzenamine, 2-methyl-	Toxaphene	See footnote 7	Toxaphene	1,2,4-Trichlorobenzene	120-82-1	Benzene, 1,2,4-trichloro-	1,1,1-Trichloroethane; Methylchloroform	71-55-6	Ethane, 1,1,1-trichloro-	1,1,2-Trichloroethane	79-00-5	Ethane, 1,1,2-trichloro-	Trichloroethylene; Trichloroethene	79-01-6	Ethene, trichloro-	Trichlorofluoromethane; CFC-11	75-69-4	Methane, trichlorofluoro-	2,4,5-Trichlorophenol	95-95-4	Phenol, 2,4,5-trichloro-	2,4,6-Trichlorophenol	88-06-2	Phenol, 2,4,6-trichloro-	1,2,3-Trichloropropane	96-18-4	Propane, 1,2,3-trichloro-	O,O,O-Triethyl phosphorothioate	126-68-1	Phosphorothioic acid, O,O,O-triethyl ester	sym-Trinitrobenzene	99-35-4	Benzene, 1,3,5-trinitro-	Vanadium	(Total)	Vanadium	Vinyl acetate	108-05-4	Acetic acid, ethenyl ester	Vinyl chloride; Chloroethene	75-01-4	Ethene, chloro-	Xylene (total)	See footnote 8	Benzene, dimethyl-	Zinc	(Total)	Zinc

1 Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals.

2 Chemical Abstracts Service registry number. Where “Total” is entered, all species in the ground water that contain this element are included.

3 CAS index names are those used in the 9th Cumulative Index.

4 This substance is often called bis(2-chloroisopropyl) ether, the name Chemical Abstracts Service applies to its noncommercial isomer, propane, 2,2″-oxybis[2-chloro-(CAS RN 39638-32-9).

5 Chlordane: This entry includes alpha-chlordane (CAS RN 5103-71-9), beta-chlordane (CAS RN 5103-74-2), gamma-chlordane (CAS RN 5566-34-7), and constituents of chlordane (CAS RN 57-74-9 and CAS RN 12789-03-6).

6 Polychlorinated biphenyls (CAS RN 1336-36-3); this category contains congener chemicals, including constituents of Aroclor-1016 (CAS RN 12674-11-2), Aroclor-1221 (CAS RN 11104-28-2), Aroclor-1232 (CAS RN 11141-16-5), Aroclor-1242 (CAS RN 53469-21-9), Aroclor-1248 (CAS RN 12672-29-6), Aroclor-1254 (CAS RN 11097-69-1), and Aroclor-1260 (CAS RN 11096-82-5).

7 Toxaphene: This entry includes congener chemicals contained in technical toxaphene (CAS RN 8001-35-2), i.e., chlorinated camphene.

8 Xylene (total): This entry includes o-xylene (CAS RN 96-47-6), m-xylene (CAS RN 108-38-3), p-xylene (CAS RN 106-42-3), and unspecified xylenes (dimethylbenzenes) (CAS RN 1330-20-7).

[70 FR 34556, June 14, 2005; 70 FR 44150, Aug. 1, 2005]