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Common name1 CAS RN2
Inorganic Constituents:
(1) Antimony (Total)
(2) Arsenic (Total)
(3) Barium (Total)
(4) Beryllium (Total)
(5) Cadmium (Total)
(6) Chromium (Total)
(7) Cobalt (Total)
(8) Copper (Total)
(9) Lead (Total)
(10) Nickel (Total)
(11) Selenium (Total)
(12) Silver (Total)
(13) Thallium (Total)
(14) Vanadium (Total)
(15) Zinc (Total)
Organic Constituents:
(16) Acetone 67-64-1
(17) Acrylonitrile 107-13-1
(18) Benzene 71-43-2
(19) Bromochloromethane 74-97-5
(20) Bromodichloromethane 75-27-4
(21) Bromoform; Tribromomethane 75-25-2
(22) Carbon disulfide 75-15-0
(23) Carbon tetrachloride 56-23-5
(24) Chlorobenzene 108-90-7
(25) Chloroethane; Ethyl chloride 75-00-3
(26) Chloroform; Trichloromethane 67-66-3
(27) Dibromochloromethane; Chlorodibromomethane 124-48-1
(28) 1,2-Dibromo-3-chloropropane; DBCP 96-12-8
(29) 1,2-Dibromoethane; Ethylene dibromide; EDB 106-93-4
(30) o-Dichlorobenzene; 1,2-Dichlorobenzene 95-50-1
(31) p-Dichlorobenzene; 1,4-Dichlorobenzene 106-46-7
(32) trans-1, 4-Dichloro-2-butene 110-57-6
(33) 1,1-Dichlorethane; Ethylidene chloride 75-34-3
(34) 1,2-Dichlorethane; Ethylene dichloride 107-06-2
(35) 1,1-Dichloroethylene; 1,1-Dichloroethene; Vinylidene chloride 75-35-4
(36) cis-1,2-Dichloroethylene; cis-1,2-Dichloroethene 156-59-2
(37) trans-1, 2-Dichloroethylene; trans-1,2-Dichloroethene 156-60-5
(38) 1,2-Dichloropropane; Propylene dichloride 78-87-5
(39) cis-1,3-Dichloropropene 10061-01-5
(40) trans-1,3-Dichloropropene 10061-02-6
(41) Ethylbenzene 100-41-4
(42) 2-Hexanone; Methyl butyl ketone 591-78-6
(43) Methyl bromide; Bromomethane 74-83-9
(44) Methyl chloride; Chloromethane 74-87-3
(45) Methylene bromide; Dibromomethane 74-95-3
(46) Methylene chloride; Dichloromethane 75-09-2
(47) Methyl ethyl ketone; MEK; 2-Butanone 78-93-3
(48) Methyl iodide; Idomethane 74-88-4
(49) 4-Methyl-2-pentanone; Methyl isobutyl ketone 108-10-1
(50) Styrene 100-42-5
(51) 1,1,1,2-Tetrachloroethane 630-20-6
(52) 1,1,2,2-Tetrachloroethane 79-34-5
(53) Tetrachloroethylene; Tetrachloroethene; Perchloroethylene 127-18-4
(54) Toluene 108-88-3
(55) 1,1,1-Trichloroethane; Methylchloroform 71-55-6
(56) 1,1,2-Trichloroethane 79-00-5
(57) Trichloroethylene; Trichloroethene 79-01-6
(58) Trichlorofluoromethane; CFC-11 75-69-4
(59) 1,2,3-Trichloropropane 96-18-4
(60) Vinyl acetate 108-05-4
(61) Vinyl chloride 75-01-4
(62) Xylenes 1330-20-7

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

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

[70 FR 34555, June 14, 2005; 70 FR 44150, Aug. 1, 2005]


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