1. Regulations
  2. title 40
  3. chapter I-i26
  4. part 258
  5. subpart G
  6. appendix AppendixI

Appendix I - Appendix I to Part 258—Constituents for Detection Monitoring

Common name 1CAS RN 2Inorganic 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) Acetone67-64-1 (17) Acrylonitrile107-13-1 (18) Benzene71-43-2 (19) Bromochloromethane74-97-5 (20) Bromodichloromethane75-27-4 (21) Bromoform; Tribromomethane75-25-2 (22) Carbon disulfide75-15-0 (23) Carbon tetrachloride56-23-5 (24) Chlorobenzene108-90-7 (25) Chloroethane; Ethyl chloride75-00-3 (26) Chloroform; Trichloromethane67-66-3 (27) Dibromochloromethane; Chlorodibromomethane124-48-1 (28) 1,2-Dibromo-3-chloropropane; DBCP96-12-8 (29) 1,2-Dibromoethane; Ethylene dibromide; EDB106-93-4 (30) o-Dichlorobenzene; 1,2-Dichlorobenzene95-50-1 (31) p-Dichlorobenzene; 1,4-Dichlorobenzene106-46-7 (32) trans-1, 4-Dichloro-2-butene110-57-6 (33) 1,1-Dichlorethane; Ethylidene chloride75-34-3 (34) 1,2-Dichlorethane; Ethylene dichloride107-06-2 (35) 1,1-Dichloroethylene; 1,1-Dichloroethene; Vinylidene chloride75-35-4 (36) cis-1,2-Dichloroethylene; cis-1,2-Dichloroethene156-59-2 (37) trans-1, 2-Dichloroethylene; trans-1,2-Dichloroethene156-60-5 (38) 1,2-Dichloropropane; Propylene dichloride78-87-5 (39) cis-1,3-Dichloropropene10061-01-5 (40) trans-1,3-Dichloropropene10061-02-6 (41) Ethylbenzene100-41-4 (42) 2-Hexanone; Methyl butyl ketone591-78-6 (43) Methyl bromide; Bromomethane74-83-9 (44) Methyl chloride; Chloromethane74-87-3 (45) Methylene bromide; Dibromomethane74-95-3 (46) Methylene chloride; Dichloromethane75-09-2 (47) Methyl ethyl ketone; MEK; 2-Butanone78-93-3 (48) Methyl iodide; Idomethane74-88-4 (49) 4-Methyl-2-pentanone; Methyl isobutyl ketone108-10-1 (50) Styrene100-42-5 (51) 1,1,1,2-Tetrachloroethane630-20-6 (52) 1,1,2,2-Tetrachloroethane79-34-5 (53) Tetrachloroethylene; Tetrachloroethene; Perchloroethylene127-18-4 (54) Toluene108-88-3 (55) 1,1,1-Trichloroethane; Methylchloroform71-55-6 (56) 1,1,2-Trichloroethane79-00-5 (57) Trichloroethylene; Trichloroethene79-01-6 (58) Trichlorofluoromethane; CFC-1175-69-4 (59) 1,2,3-Trichloropropane96-18-4 (60) Vinyl acetate108-05-4 (61) Vinyl chloride75-01-4 (62) Xylenes1330-20-7

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

2 Chemical 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]

AUTHORITY: 33 U.S.C. 1345(d) and (e); 42 U.S.C. 6902(a), 6907, 6912(a), 6944, 6945(c) and 6949a(c), 6981(a).

SOURCE: 56 FR 51016, Oct. 9, 1991, unless otherwise noted.