Code of Federal Regulations (Last Updated: November 8, 2024) |
Title 40 - Protection of Environment |
Chapter I - Environmental Protection Agency |
SubChapter I - Solid Wastes |
Part 264 - Standards for Owners and Operators of Hazardous Waste Treatment, Storage, and Disposal Facilities |
Appendix IX to Part 264 - Ground-Water Monitoring List
Latest version.
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Appendix IX to Part 264 - Ground-Water Monitoring List
Ground-Water Monitoring List
Common name1 CAS RN2 Chemical abstracts service index name3 Acenaphthene 83-32-9 Acenaphthylene, 1,2-dihydro- Acenaphthylene 208-96-8 Acenaphthylene Acetone 67-64-1 2-Propanone Acetophenone 98-86-2 Ethanone, 1-phenyl- Acetonitrile; Methyl cyanide 75-05-8 Acetonitrile 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-(1α,4α,4aβ,5α,8α,8aβ)- Allyl chloride 107-05-1 1-Propene, 3-chloro- 4-Aminobiphenyl 92-67-1 [1,1′-Biphenyl]-4-amine Aniline 62-53-3 Benzenamine Anthracene 120-12-7 Anthracene Antimony (Total) Antimony Aramite 140-57-8 Sulfurous acid, 2-chloroethyl 2-[4-(1,1-dimethylethyl) phenoxy]-1-methylethyl ester 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,4β,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 111-44-4 Ethane, 1,1′-oxybis[2-chloro- Bis(2-chloro-1-methylethyl) ether; 2,2′-Dichlorodiisopropyl ether 108-60-1 Propane, 2,2′-oxybis[1-chloro- Bis(2-ethylhexyl) phthalate 117-81-7 1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl)ester Bromodichloromethane 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 57-74-9 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-α-(4-chlorophenyl)-α-hydroxy-, ethyl ester p-Chloro-m-cresol 59-50-7 Phenol, 4-chloro-3-methyl- Chloroethane; Ethyl chloride 75-00-3 Ethane, chloro- Chloroform 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 108-39-4 Phenol, 3-methyl- o-Cresol 95-48-7 Phenol, 2-methyl- p-Cresol 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 106-93-4 Ethane, 1,2-dibromo- Di-n-butyl phthalate 84-74-2 1,2-Benzenedicarboxylic acid, dibutyl ester o-Dichlorobenzene 95-50-1 Benzene, 1,2-dichloro- m-Dichlorobenzene 541-73-1 Benzene, 1,3-dichloro- p-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 75-71-8 Methane, dichlorodifluoro- 1,1-Dichloroethane 75-34-3 Ethane, 1,1-dichloro- 1,2-Dichloroethane; Ethylene dichloride 107-06-2 Ethane, 1,2-dichloro- 1,1-Dichloroethylene; Vinylidene chloride 75-35-4 Ethene, 1,1-dichloro- trans-1,2-Dichloroethylene 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- 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 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 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 1,4-Dioxane 123-91-1 1,4-Dioxane 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- benzodioxathiepin, 6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-, 3-oxide,(3α,5aβ,6α,9α,9aβ)- 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- Methenocyclopenta[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- Hexachlorophene 70-30-4 Phenol, 2,2′-methylenebis[3,4,6-trichloro- Hexachloropropene 1888-71-7 1-Propene, 1,1,2,3,3,3-hexachloro- 2-Hexanone 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- Methylene bromide; Dibromomethane 74-95-3 Methane, dibromo- Methylene chloride; Dichloromethane 75-09-2 Methane, dichloro- Methyl ethyl ketone; MEK; 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 O-(4-nitrophenyl) ester 4-Methyl-2-pentanone; Methyl isobutyl ketone 108-10-1 2-Pentanone, 4-methyl- 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 88-74-4 Benzenamine, 2-nitro- m-Nitroaniline 99-09-2 Benzenamine, 3-nitro- p-Nitroaniline 100-01-6 Benzenamine, 4-nitro- Nitrobenzene 98-95-3 Benzene, nitro- o-Nitrophenol 88-75-5 Phenol, 2-nitro- p-Nitrophenol 100-02-7 Phenol, 4-nitro- 4-Nitroquinoline 1-oxide 56-57-5 Quinoline, 4-nitro, 1-oxide 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;Di-n-propylnitrosamine 621-64-7 1-Propanamine, N-nitroso-N-propyl- N-Nitrosomethylethalamine 10595-95-6 Ethanamine, N-methyl-N-nitroso- N-Nitrosomorpholine 59-89-2 Morpholine, 4-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 Polychlorinated biphenyls; PCBs See footnote 4 1,1′-Biphenyl, chloro derivatives Polychlorinated dibenzo-p-dioxins; PCDDs See footnote 5 Dibenzo[b,e][1,4]dioxin, chloro derivatives Polychlorinated dibenzofurans; PCDFs See footnote 6 Dibenzofuran, chloro derivatives Pentachlorobenzene 608-93-5 Benzene, pentachloro- Pentachloroethane 76-01-7 Ethane, 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 2-Picoline 109-06-8 Pyridine, 2-methyl- 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 Pyridine 110-86-1 Pyridine 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; Perchloroethylene; Tetrachloroethene 127-18-4 Ethene, tetrachloro- 2,3,4,6-Tetrachlorophenol 58-90-2 Phenol, 2,3,4,6-tetrachloro- Tetraethyl dithiopyrophosphate; Sulfotepp 3689-24-5 Thiodiphosphoric acid ([(HO)2 P(S)]2 O), tetraethyl ester Thallium (Total) Thallium Tin (Total) Tin Toluene 108-88-3 Benzene, methyl- o-Toluidine 95-53-4 Benzenamine, 2-methyl- Toxaphene 8001-35-2 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 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 75-01-4 Ethene, chloro- Xylene (total) 1330-20-7 Benzene, dimethyl- Zinc (Total) Zinc [70 FR 34582, June 14, 2005, as amended at 70 FR 44151, Aug. 1, 2005]