[Code of Federal Regulations]
[Title 40, Volume 24]
[Revised as of July 1, 2005]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR258.75]

[Page 438-450]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 258_CRITERIA FOR MUNICIPAL SOLID WASTE LANDFILLS--Table of Contents
 
                 Subpart G_Financial Assurance Criteria
 
Sec. 258.75  Discounting.

    The Director of an approved State may allow discounting of closure 
cost estimates in Sec. 258.71(a), post-closure cost estimates in Sec. 
258.72(a), and/or corrective action costs in Sec. 258.73(a) up to the 
rate of return for essentially risk free investments, net of inflation, 
under the following conditions:
    (a) The State Director determines that cost estimates are complete 
and accurate and the owner or operator has submitted a statement from a 
Registered Professional Engineer so stating;
    (b) The State finds the facility in compliance with applicable and 
appropriate permit conditions;
    (c) The State Director determines that the closure date is certain 
and the owner or operator certifies that there are no foreseeable 
factors that will change the estimate of site life; and
    (d) Discounted cost estimates must be adjusted annually to reflect 
inflation and years of remaining life.

[61 FR 60339, Nov. 27, 1996]

    Appendix I to Part 258--Constituents for Detection Monitoring \1\

------------------------------------------------------------------------
                      Common name \2\                         CAS RN \3\
------------------------------------------------------------------------
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-Dichloroethane; Ethylidene chloride.............      75-34-3
  (34) 1,2-Dichloroethane; Ethylene dichloride.............     107-06-2
  (35) 1,1-Dichloroethylene; 1,1-Dichloroethene; Vinylidene      75-35-4
   chloride................................................
  (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; Iodomethane..........................      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;                  127-18-4
   Perchloroethylene.......................................
  (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
------------------------------------------------------------------------
\1\ This list contains 47 volatile organics for which possible
  analytical procedures provided in EPA Report SW-846 ``Test Methods for
  Evaluating Solid Waste,'' third edition, November 1986, as revised
  December 1987, includes Method 8260; and 15 metals for which SW-846
  provides either Method 6010 or a method from the 7000 series of
  methods.
\2\ Common names are those widely used in government regulations,
  scientific publications, and commerce; synonyms exist for many
  chemicals.
\3\ Chemical Abstracts Service registry number. Where ``Total'' is
  entered, all species in the ground water that contain this element are
  included.


[[Page 439]]


    Effective Date Note: At 70 FR 34555, June 14, 2005, Appendix I to 
part 258 was revised, effective July 14, 2005. For the convenience of 
the user, the revised text is set forth as follows:

      Appendix I to Part 258--Constituents for Detection Monitoring

------------------------------------------------------------------------
             Common name \1\                         CAS RN \2\
------------------------------------------------------------------------
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 1.................  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;             124-48-1
     Chlorodibromomethane.
    (28) 1,2-Dibromo-3-chloropropane;      96-12-8
     DBCP.
    (29) 1,2-Dibromoethane; Ethylene       106-93-4
     dibromide; EDB.
    (30) o-Dichlorobenzene; 1,2-           95-50-1
     Dichlorobenzene.
    (31) p-Dichlorobenzene; 1,4-           106-46-7
     Dichlorobenzene.
    (32) trans-1, 4-Dichloro-2-butene....  110-57-6
    (33) 1,1-Dichlorethane; Ethylidene     75-34-3
     chloride.
    (34) 1,2-Dichlorethane; Ethylene       107-06-2
     dichloride.
    (35) 1,1-Dichloroethylene; 1,1-        75-35-4
     Dichloroethene; Vinylidene chloride.
    (36) cis-1,2-Dichloroethylene; cis-    156-59-2
     1,2-Dichloroethene.
    (37) trans-1, 2-Dichloroethylene;      156-60-5
     trans-1,2-Dichloroethene.
    (38) 1,2-Dichloropropane; Propylene    78-87-5
     dichloride.
    (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;                74-95-3
     Dibromomethane.
    (46) Methylene chloride;               75-09-2
     Dichloromethane.
    (47) Methyl ethyl ketone; MEK; 2-      78-93-3
     Butanone.
    (48) Methyl iodide; Idomethane.......  74-88-4
    (49) 4-Methyl-2-pentanone; Methyl      108-10-1
     isobutyl ketone.
    (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;              127-18-4
     Tetrachloroethene; Perchloroethylene.
    (54) Toluene.........................  108-88-3
    (55) 1,1,1-Trichloroethane;            71-55-6
     Methylchloroform.
    (56) 1,1,2-Trichloroethane...........  79-00-5
    (57) Trichloroethylene;                79-01-6
     Trichloroethene.
    (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
------------------------------------------------------------------------
\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.

    Appendix II to Part 258--List of Hazardous Inorganic and Organic 
                            Constituents \1\

----------------------------------------------------------------------------------------------------------------
                                                                                        Suggested
            Common Name \2\               CAS RN \3\      Chemical abstracts service     methods   PQL ([micro]g/
                                                                index name \4\             \5\         L) \6\
----------------------------------------------------------------------------------------------------------------
Acenaphthene..........................         83-32-9  Acenaphthylene, 1,2-dihydro-..       8100       200
                                                                                             8270        10
Acenaphthylene........................        208-96-8  Acenaphthylene................       8100       200
                                                                                             8270        10
Acetone...............................         67-64-1  2-Propanone...................       8260       100
Acetonitrile; Methyl cyanide..........         75-05-8  Acetonitrile..................       8015       100
Acetophenone..........................         98-86-2  Ethanone, 1-phenyl-...........       8270        10
2-Acetylaminofluorene; 2-AAF..........         53-96-3  Acetamide, N-9H-fluoren-2-yl-.       8270        20

[[Page 440]]


Acrolein..............................        107-02-8  2-Propenal....................       8030         5
                                                                                             8260       100
Acrylonitrile.........................        107-13-1  2-Propenenitrile..............       8030         5
                                                                                             8260       200
Aldrin................................        309-00-2  1,4:5,8-Dimethanonaphthalene,        8080         0.05
                                                         1,2,3,4,10,10-hexachloro-           8270        10
                                                         1,4,4a,5,8,8a-hexahydro-
                                                         (1[alpha],4[alpha],4a[beta],5
                                                         [alpha],8[alpha],8a[beta])-
Allyl chloride........................        107-05-1  1-Propene, 3-chloro-..........       8010         5
                                                                                             8260        10
4-Aminobiphenyl.......................         92-67-1  [1,1\1\-Biphenyl]-4-amine.....       8270        20
Anthracene............................        120-12-7  Anthracene....................       8100       200
                                                                                             8270        10
Antimony..............................         (Total)  Antimony......................       6010       300
                                                                                             7040      2000
                                                                                             7041        30
Arsenic...............................         (Total)  Arsenic.......................       6010       500
                                                                                             7060        10
                                                                                             7061        20
Barium................................         (Total)  Barium........................       6010        20
                                                                                             7080      1000
Benzene...............................         71-43-2  Benzene.......................       8020         2
                                                                                             8021         0.1
                                                                                             8260         5
Benzo[a]anthracene; Benzanthracene....         56-55-3  Benz[a]anthracene.............       8100       200
                                                                                             8270        10
Benzo[b]fluoranthene..................        205-99-2  Benz[e]acephenanthrylene......       8100       200
                                                                                             8270        10
Benzo[k]fluoranthene..................        207-08-9  Benzo[k]fluoranthene..........       8100       200
                                                                                             8270        10
Benzo[ghi]perylene....................        191-24-2  Benzo[ghi]perylene............       8100       200
                                                                                             8270        10
Benzo[a]pyrene........................         50-32-8  Benzo[a]pyrene................       8100       200
                                                                                             8270        10
Benzyl alcohol........................        100-51-6  Benzenemethanol...............       8270        20
Beryllium.............................         (Total)  Beryllium.....................       6010         3
                                                                                             7090        50
                                                                                             7091         2
alpha-BHC.............................        319-84-6  Cyclohexane, 1,2,3,4,5,6-            8080         0.05
                                                         hexachloro-,                        8270        10
                                                         (1[alpha],2[alpha],3[beta],4[
                                                         alpha],5[beta],6[beta])-.
beta-BHC..............................        319-85-7  Cyclohexane, 1,2,3,4,5,6-            8080         0.05
                                                         hexachloro-,                        8270        20
                                                         (1[alpha],2[beta],3[alpha],4[
                                                         beta],5[alpha],6[beta])-.
delta-BHC.............................        319-86-8  Cyclohexane, 1,2,3,4,5,6-            8080         0.1
                                                         hexachloro-,                        8270        20
                                                         (1[alpha],2[alpha],3[alpha],4
                                                         [beta],5[alpha],6[beta])-.
gamma-BHC; Lindane....................         58-89-9  Cyclohexane, 1,2,3,4,5,6-            8080         0.05
                                                         hexachloro-,                        8270        20
                                                         (1[alpha],2[alpha],3[beta],4[
                                                         alpha],5[alpha],6[beta])-.
Bis(2-chloroethoxy)methane............        111-91-1  Ethane, 1,1\1\-                      8110         5
                                                         [methylenebis(oxy)]bis[2-           8270        10
                                                         chloro-.
Bis(2-chloroethyl) ether;                     111-44-4  Ethane, 1,1\1\-oxybis[2-chloro-      8110         3
 Dichloroethyl ether.                                    .                                   8270        10
Bis-(2-chloro-1-methylethyl) ether;           108-60-1  Propane, 2,2\1\-oxybis[1-            8110        10
 2,2\1\-Dichlorodiisopropyl ether;                       chloro-.                            8270        10
 DCIP, See note 7
Bis(2-ethylhexyl) phthalate...........        117-81-7  1,2-Benzenedicarboxylic acid,        8060        20
                                                         bis(2-ethylhexyl) ester.
Bromochloromethane; Chlorobromomethane         74-97-5  Methane, bromochloro-.........       8021         0.1
                                                                                             8260         5
Bromodichloromethane;                          75-27-4  Methane, bromodichloro-.......       8010         1
 Dibromochloromethane.                                                                       8021         0.2
                                                                                             8260         5
Bromoform; Tribromomethane............         75-25-2  Methane, tribromo-............       8010         2
                                                                                             8021        15
                                                                                             8260         5
4-Bromophenyl phenyl ether............        101-55-3  Benzene, 1-bromo-4-phenoxy-...       8110        25
                                                                                             8270        10
Butyl benzyl phthalate; Benzyl butyl           85-68-7  1,2-Benzenedicarboxylic acid,        8060         5
 phthalate.                                              butyl phenylmethyl ester.           8270        10
Cadmium...............................         (Total)  Cadmium.......................       6010        40
                                                                                             7130        50
                                                                                             7131         1
Carbon disulfide......................         75-15-0  Carbon disulfide..............       8260       100

[[Page 441]]


Carbon tetrachloride..................         56-23-5  Methane, tetrachloro-.........       8010         1
                                                                                             8021         0.1
                                                                                             8260        10
Chlordane.............................      See Note 8  4,7-Methano-1H-indene,               8080         0.1
                                                         1,2,4,5,6,7,8,8-octachloro-         8270        50
                                                         2,3,3a,4,7,7a-hexahydro-.
p-Chloroaniline.......................        106-47-8  Benzenamine, 4-chloro-........       8270        20
Chlorobenzene.........................        108-90-7  Benzene, chloro-..............       8010         2
                                                                                             8020         2
                                                                                             8021         0.1
                                                                                             8260         5
Chlorobenzilate.......................        510-15-6  Benzeneacetic acid, 4-chloro-        8270        10
                                                         [alpha]-(4-chlorophenyl)-
                                                         [alpha]-hydroxy-, ethyl ester.
p-Chloro-m-cresol; 4-Chloro-3-                 59-50-7  Phenol, 4-chloro-3-methyl-....       8040         5
 methylphenol.                                                                               8270        20
Chloroethane; Ethyl chloride..........         75-00-3  Ethane, chloro-...............       8010         5
                                                                                             8021         1
                                                                                             8260        10
Chloroform; Trichloromethane..........         67-66-3  Methane, trichloro-...........       8010         0.5
                                                                                             8021         0.2
                                                                                             8260         5
2-Chloronaphthalene...................         91-58-7  Naphthalene, 2-chloro-........       8120        10
                                                                                             8270        10
2-Chlorophenol........................         95-57-8  Phenol, 2-chloro-.............       8040         5
                                                                                             8270        10
4-Chlorophenyl phenyl ether...........       7005-72-3  Benzene, 1-chloro-4-phenoxy-..       8110        40
                                                                                             8270        10
Chloroprene...........................        126-99-8  1,3-Butadiene, 2-chloro-......       8010        50
                                                                                             8260        20
Chromium..............................         (Total)  Chromium......................       6010        70
                                                                                             7190       500
                                                                                             7191        10
Chrysene..............................        218-01-9  Chrysene......................       8100       200
                                                                                             8270        10
Cobalt................................         (Total)  Cobalt........................       6010        70
                                                                                             7200       500
                                                                                             7201        10
Copper................................         (Total)  Copper........................       6010        60
                                                                                             7210       200
                                                                                             7211        10
m-Cresol; 3-methylphenol..............        108-39-4  Phenol, 3-methyl-.............       8270        10
o-Cresol; 2-methylphenol..............         95-48-7  Phenol, 2-methyl-.............       8270        10
p-Cresol; 4-methylphenol..............        106-44-5  Phenol, 4-methyl-.............       8270        10
Cyanide...............................         57-12-5  Cyanide.......................       9010       200
2,4-D; 2,4-Dichlorophenoxyacetic acid.         94-75-7  Acetic acid, (2,4-                   8150        10
                                                         dichlorophenoxy)-.
4,4\1\-DDD............................         72-54-8  Benzene 1,1\1\-(2,2-                 8080         0.1
                                                         dichloroethylidene)bis[4-           8270        10
                                                         chloro-.
4,4\1\-DDE............................         72-55-9  Benzene, 1,1\1\-                     8080         0.05
                                                         (dichloroethyenylidene)bis[4-       8270        10
                                                         chloro-.
4,4\1\-DDT............................         50-29-3  Benzene, 1,1\1\-(2,2,2-              8080         0.1
                                                         trichloroethylidene)bis[4-          8270        10
                                                         chloro-.
Diallate..............................       2303-16-4  Carbamothioic acid, bis(1-           8270        10
                                                         methylethyl)-,S-(2,3-dichloro-
                                                         2-propenyl) ester.
Dibenz[a,h]anthracene.................         53-70-3  Dibenz[a,h]anthracene.........       8100       200
                                                                                             8270        10
Dibenzofuran..........................        132-64-9  Dibenzofuran..................       8270        10
Dibromochloromethane;                         124-48-1  Methane, dibromochloro-.......       8010         1
 Chlorodibromomethane.                                                                       8021         0.3
                                                                                             8260         5
1,2-Dibromo-3-chloropropane; DBCP.....         96-12-8  Propane, 1,2-dibrome-3-chloro-       8011         0.1
                                                                                             8021        30
                                                                                             8260        25
1,2-Dibromoethane; Ethylene                   106-93-4  Ethane, 1,2-dibromo-..........       8011         0.1
 dribromide; EDB.                                                                            8021        10
                                                                                             8260         5
Di-n-butyl phthalate..................         84-74-2  1,2-Benzenedicarboxylic acid,        8060         5
                                                         dibutyl ester.                      8270        10

[[Page 442]]


o-Dichlorobenzene; 1,2-Dichlorobenzene         95-50-1  Benzene, 1,2-dichloro-........       8010         2
                                                                                             8020         5
                                                                                             8021         0.5
                                                                                             8120        10
                                                                                             8260         5
                                                                                             8270        10
m-Dichlorobenzene; 1,3-Dichlorobenzene        541-73-1  Benzene, 1,3-Dichloro-........       8010         5
                                                                                             8020         5
                                                                                             8021         0.2
                                                                                             8120        10
                                                                                             8260         5
                                                                                             8270        10
p-Dichlorobenzene; 1,4-Dichlorobenzene        106-46-7  Benzene, 1,4-dichloro-........       8010         2
                                                                                             8020         5
                                                                                             8021         0.1
                                                                                             8120        15
                                                                                             8260         5
                                                                                             8270        10
3,3\1\-Dichlorobenzidine..............         91-94-1  [1,1\1\-Biphenyl]-4,4\1\-            8270        20
                                                         diamine, 3,3\1\-dichloro-.
trans-1,4-Dichloro-2-butene...........        110-57-6  2-Butene, 1,4-dichloro-, (E)-.       8260       100
Dichlorodifluoromethane; CFC 12;......         75-71-8  Methane, dichlorodifluoro-....       8021         0.5
                                                                                             8260         5
1,1-Dichloroethane; Ethyldidene                75-34-3  Ethane, 1,1-dichloro-.........       8010         1
 chloride.                                                                                   8021         0.5
                                                                                             8260         5
1,2-Dichloroethane; Ethylene                  107-06-2  Ethane, 1,1-dichloro-.........       8010         0.5
 dichloride.                                                                                 8021         0.3
                                                                                             8260         5
1,1-Dichloroethylene; 1,1-                     75-35-4  Ethene, 1,1-dichloro-.........       8010         1
 Dichloroethene; Vinylidene chloride.                                                        8021         0.5
                                                                                             8260         5
cis-1,2-Dichloroethylene; cis-1,2-            156-59-2  Ethene, 1,2-dichloro-, (Z)-...       8021         0.2
 Dichloroethene.                                                                             8260         5
trans-1,2-Dichloroethylene trans-1,2-         156-60-5  Ethene, 1,2-dichloro-, (E)-...       8010         1
 Dichloroethene.                                                                             8021         0.5
                                                                                             8260         5
2,4-Dichlorophenol....................        120-83-2  Phenol, 2,4-dichloro-.........       8040         5
                                                                                             8270        10
2,6-Dichlorophenol....................         87-65-0  Phenol, 2,6-dichloro-.........       8270        10
1,2-Dichloropropane; Propylene                 78-87-5  Propane, 1,2-dichloro-........       8010         0.5
 dichloride.                                                                                 8021         0.05
                                                                                             8260         5
1,3-Dichloropropane; Trimethylene             142-28-9  Propane, 1,3-dichloro-........       8021         0.3
 dichloride.                                                                                 8260         5
2,2-Dichloropropane; Isopropylidene           594-20-7  Propane, 2,2-dichloro-........       8021         0.5
 chloride.                                                                                   8260        15
1,1-Dichloropropene...................        563-58-6  1-Propene, 1,1-dichloro-......       8021         0.2
                                                                                             8260         5
cis-1,3-Dichloropropene...............      10061-01-5  1-Propene, 1,3-dichloro-, (Z)-       8010        20
                                                                                             8260        10
trans-1,3-Dichloropropene.............      10061-02-6  1-Propene, 1,3-dichloro-, (E)-       8010         5
                                                                                             8260        10
Dieldrin..............................         60-57-1  2,7:3,6-Dimethanonaphth[2,3-         8080         0.05
                                                         b]oxirene, 3,4,5,6,9,9-hexa,        8270        10
                                                         chloro-1a,2,2a,3,6,6a,7,7a-
                                                         octahydro-,
                                                         (1a[alpha],2[beta],2a[alpha],
                                                         3[beta],6[beta],6a[alpha],7[b
                                                         eta],7a[alpha])-.
Diethyl phthalate.....................         84-66-2  1,2-Benzenedicarboxylic acid,        8060         5
                                                         diethyl ester.                      8270        10
0,0-Diethyl 0-2-pyrazinyl                     297-97-2  Phosphorothioic acid, 0,0-           8141         5
 phosphorothioate; Thionazin.                            diethyl 0-pyrazinyl ester.          8270        20
Dimethoate............................         60-51-5  Phosphorodithioic acid, 0,0-         8141         3
                                                         dimethyl S-[2-(methylamino)-2-      8270        20
                                                         oxoethyl] ester.
p-(Dimethylamino)azobenzene...........         60-11-7  Benzenamine, N,N-dimethyl-4-         8270        10
                                                         (phenylazo)-.
7,12-Dimethylbenz[a]anthracene........         57-97-6  Benz[a]anthracene, 7,12-             8270        10
                                                         dimethyl-.
3,3\1\-Dimethylbenzidine..............        119-93-7  [1,1\1\-Biphenyl]-4,4\1\-            8270        10
                                                         diamine, 3,3\1\-dimethyl-.
2,4-Dimethylphenol; m-Xylenol.........        105-67-9  Phenol, 2,4-dimethyl-.........       8040         5
                                                                                             8270        10

[[Page 443]]


Dimethyl phthalate....................        131-11-3  1,2-Benzenedicarboxylic acid,        8060         5
                                                         dimethyl ester.                     8270        10
m-Dinitrobenzene......................         99-65-0  Benzene, 1,3-dinitro-.........       8270        20
4,6-Dinitro-o-cresol 4,6-Dinitro-2-           534-52-1  Phenol, 2-methyl-4,6-dinitro..       8040       150
 methylphenol.                                                                               8270        50
2,4-Dinitrophenol;....................         51-28-5  Phenol, 2,4-dinitro-..........       8040       150
                                                                                             8270        50
2,4-Dinitrotoluene....................        121-14-2  Benzene, 1-methyl-2,4-dinitro-       8090         0.2
                                                                                             8270        10
2,6-Dinitrotoluene....................        606-20-2  Benzene, 2-methyl-1,3-dinitro-       8090         0.1
                                                                                             8270        10
Dinoseb; DNBP; 2-sec-Butyl-4,6-                88-85-7  Phenol, 2-(1-methylpropyl)-4,6-      8150         1
 dinitrophenol.                                          dinitro-.                           8270        20
Di-n-octyl phthalate..................        117-84-0  1,2-Benzenedicarboxylic acid,        8060        30
                                                         dioctyl ester.                      8270        10
Diphenylamine.........................        122-39-4  Benzenamine, N-phenyl-........       8270        10
Disulfoton............................        298-04-4  Phosphorodithioic acid, 0,0-         8140         2
                                                         diethyl S-[2-                       8141         0.5
                                                         (ethylthio)ethyl] ester.            8270        10
Endosulfan I..........................        959-98-8  6,9-Methano-2,4,3-                   8080         0.1
                                                         benzodioxathiepin,                  8270        20
                                                         6,7,8,9,10,10-hexa- chloro-
                                                         1,5,5a,6,9,9a-hexahydro-, 3-
                                                         oxide,
Endosulfan II.........................      33213-65-9  6,9-Methano-2,4,3-                   8080         0.05
                                                         benzodioxathiepin,                  8270        20
                                                         6,7,8,9,10,10-hexa- chloro-
                                                         1,5,5a,6,9,9a-hexahydro-, 3-
                                                         oxide,
                                                         (3[alpha],5a[alpha],6[beta],9
                                                         [beta],9a[alpha])-.
Endosulfan sulfate....................       1031-07-8  6,9-Methano-2,4,3-                   8080         0.5
                                                         benzodioxathiepin,                  8270        10
                                                         6,7,8,9,10,10-hexa- chloro-
                                                         1,5,5a,6,9,9a-hexahydro-,3-3-
                                                         dioxide.
Endrin................................         72-20-8  2,7:3,6-Dimethanonaphth[2,3-         8080         0.1
                                                         b]oxirene, 3,4,5,6,9,9-             8270        20
                                                         hexachloro-
                                                         1a,2,2a,3,6,6a,7,7a-octahydro-
                                                         , (1a[alpha],
                                                         2[beta],2a[beta],3[alpha],6[a
                                                         lpha],6a[beta],7[beta],7a[alp
                                                         ha])-.
Endrin aldehyde.......................       7421-93-4  1,2,4-                               8080         0.2
                                                         Methenocyclopenta[cd]pentalen       8270        10
                                                         e-5-carboxaldehyde,
                                                         2,2a,3,3,4,7-
                                                         hexachlorodecahydro-,
                                                         (1[alpha],2[beta],2a[beta],4[
                                                         beta],4a[beta],5[beta],6a[bet
                                                         a],6b[beta],7R*)-.
Ethylbenzene..........................        100-41-4  Benzene, ethyl-...............       8020         2
                                                                                             8221         0.05
                                                                                             8260         5
Ethyl methacrylate....................         97-63-2  2-Propenoic acid, 2-methyl-,         8015         5
                                                         ethyl ester.                        8260        10
                                                                                             8270        10
Ethyl methanesulfonate................         62-50-0  Methanesulfonic acid, ethyl          8270        20
                                                         ester.
Famphur...............................         52-85-7  Phosphorothioic acid, 0-[4-          8270        20
                                                         [(dimethylamino)sulfonyl]phen
                                                         yl] 0,0-dimethyl ester.
Fluoranthene..........................        206-44-0  Fluoranthene..................       8100       200
                                                                                             8270        10
Fluorene..............................         86-73-7  9H-Fluorene...................       8100       200
                                                                                             8270        10
Heptachlor............................         76-44-8  4,7-Methano-1H-indene,               8080         0.05
                                                         1,4,5,6,7,8,8-heptachloro-          8270        10
                                                         3a,4,7,7a-tetrahydro-.
Heptachlor epoxide....................       1024-57-3  2,5-Methano-2H-indeno[1,2-           8080         1
                                                         b]oxirene, 2,3,4,5,6,7,7-           8270        10
                                                         heptachloro-1a,1b,5,5a,6,6a-
                                                         hexahydro-, (1a[alpha],
                                                         1b[beta], 2[alpha], 5[alpha],
                                                         5a[beta], 6[beta], 6a[alpha]).
Hexachlorobenzene.....................        118-74-1  Benzene, hexachloro-..........       8120         0.5
                                                                                             8270        10
Hexachlorobutadiene...................         87-68-3  1,3-Butadiene, 1,1,2,3,4,4-          8021         0.5
                                                         hexachloro-.                        8120         5
                                                                                             8260        10
                                                                                             8270        10
Hexachlorocyclopentadiene.............         77-47-4  1,3-Cyclopentadiene,                 8120         5
                                                         1,2,3,4,5,5-hexachloro-.            8270        10
Hexachloroethane......................         67-72-1  Ethane, hexachloro-...........       8120         0.5
                                                                                             8260        10
                                                                                             8270        10
Hexachloropropene.....................       1888-71-7  1-Propene, 1,1,2,3,3,3-              8270        10
                                                         hexachloro-.
2-Hexanone; Methyl butyl ketone.......        591-78-6  2-Hexanone....................       8260        50

[[Page 444]]


Indeno(1,2,3-cd)pyrene................        193-39-5  Indeno(1,2,3-cd)pyrene........       8100       200
                                                                                             8270        10
Isobutyl alcohol......................         78-83-1  1-Propanol, 2-methyl-.........       8015        50
                                                                                             8240       100
Isodrin...............................        465-73-6  1,4,5,8-Di metha nonaphtha           8270        20
                                                         lene,1,2,3,4,10,10-                 8260        10
                                                         hexachloro-1,4,4a,5,8,8a
                                                         hexahydro-
                                                         (1[alpha],4[alpha],4a[beta],5
                                                         [beta],8[beta],8a[beta])-.
Isophorone............................         78-59-1  2-Cyclohexen-1-one, 3,5,5-           8090        60
                                                         trimethyl-.                         8270        10
Isosafrole............................        120-58-1  1,3-Benzodioxole, 5-(1-              8270        10
                                                         propenyl)-.
Kepone................................        143-50-0  1,3,4-Metheno-2H-cyclo               8270        20
                                                         buta[cd]penta len-2-one,
                                                         1,1a,3,3a,4,5,5,5a,5b,6-deca
                                                         chloro octahydro-.
Lead..................................         (Total)  Lead..........................       6010       400
                                                                                             7420      1000
                                                                                             7421        10
Mercury...............................         (Total)  Mercury.......................       7470         2
Metha crylonitrile....................        126-98-7  2-Propen enitrile, 2-methyl-..       8015         5
                                                                                             8260       100
Metha pyrilene........................         91-80-5  1,2-Ethanediamine, N.N-              8270       100
                                                         dimethyl-N\1\-2-pyridinyl-N1/
                                                         2-thienylmethyl)-.
Methoxychlor..........................         72-43-5  Benzene,1,1\1\-                      8080         2
                                                         (2,2,2,trichloroethylidene)bi       8270        10
                                                         s[4-methoxy-.
Methyl bromide; Bromomethane..........         74-83-9  Methane, bromo-...............       8010        20
                                                                                             8021        10
Methyl chloride; Chloromethane........         74-87-3  Methane, chloro-..............       8010         1
                                                                                             8021         0.3
3-Methyl cholanthrene.................         56-49-5  Benz[j]acean thry lene, 1,2-         8270        10
                                                         dihydro-3-methyl-.
Methyl ethyl ketone; MEK; 2-Butanone..         78-93-3  2-Butanone....................       8015        10
                                                                                             8260       100
Methyl iodide; Iodomethane............         74-88-4  Methane, iodo-................       8010        40
                                                                                             8260        10
Methyl methacrylate...................         80-62-6  2-Propenoic acid, 2-methyl-,         8015         2
                                                         methyl ester.                       8260        30
Methyl methane sulfonate..............         66-27-3  Methane sulfonic acid, methyl        8270        10
                                                         ester.
2-Methyl naphtha lene.................         91-57-6  Naphtha lene, 2-methyl-.......       8270        10
Methyl parathion; Parathion methyl....        298-00-0  Phosphoro thioic acid, 0,0-          8140         0.5
                                                         dimethyl.                           8141         1
                                                                                             8270        10
4-Methyl-2-pentanone; Methyl isobutyl         108-10-1  2-Pentanone, 4-methyl-........       8015         5
 ketone.                                                                                     8260       100
Methylene bromide; Dibro momethane....         74-95-3  Methane, dibromo-.............       8010        15
                                                                                             8021        20
                                                                                             8260        10
Methylene chloride; Di chloro methane.         75-09-2  Methane, dichloro-............       8010         5
                                                                                             8021         0.2
                                                                                             8260        10
Naphtha lene..........................         91-20-3  Naphtha lene..................       8021         0.5
                                                                                             8100       200
                                                                                             8260         5
                                                                                             8270        10
1,4-Naphtho quinone...................        130-15-4  1,4-Naphtha lenedione.........       8270        10
1-Naphthyla mine......................        134-32-7  1-Naphtha lenamine............       8270        10
2-Naphthyla mine......................         91-59-8  2-Naphthalena mine............       8270        10
Nickel................................         (Total)  Nickel........................       6010       150
                                                                                             7520       400
o-Nitroaniline; 2-Nitroaniline........         88-74-4  Benzenamine, 2-nitro-.........       8270        50
m-Nitroaniline; 3-Nitroanile..........         99-09-2  Benzenamine, 3-nitro-.........       8270        50
p-Nitroaniline; 4-Nitroaniline........        100-01-6  Benzenamine, 4-nitro..........       8270        20
Nitrobenzene..........................         98-95-3  Benzene, nitro-...............       8090        40
                                                                                             8270        10
o-Nitrophenol; 2-Nitrophenol..........         88-75-5  Phenol, 2-nitro-..............       8040         5
                                                                                             8270        10
p-Nitrophenol; 4-Nitrophenol..........        100-02-7  Phenol, 4-nitro-..............       8040        10
                                                                                             8270        50
N-Nitrosodi-n-butylamine..............        924-16-3  1-Butanamine, N-butyl-N-             8270        10
                                                         nitroso-.
N-Nitro sodiethyla mine...............         55-18-5  Ethanamine, N-ethyl-N-nitroso-       8270        20
N-Nitro sodimethyla mine..............         62-75-9  Methanamine, N-methyl-N-             8070         2
                                                         nitroso-.

[[Page 445]]


N-Nitro sodiphenyla mine..............         86-30-6  Benzenamine, N-nitroso-N-            8070         5
                                                         phenyl-.
N-Nitro sodipropyla mine; N-Nitroso-N-        621-64-7  1-Propanamine, N-nitroso-N-          8070        10
 dipropylamine; Di-n-propyl                              propyl-.
 nitrosamine.
N-Nitro somethylethala mine...........      10595-95-6  Ethanamine, N-methyl-N-nitroso-      8270        10
                                                         .
N-Nitro sopiperidine..................        100-75-4  Piperidine, 1-nitroso-........       8270        20
N-Nitro sopyrrolidine.................        930-55-2  Pyrrolidine, 1-nitroso-.......       8270        40
5-Nitro-o-toluidine...................         99-55-8  Benzenamine, 2-methyl-5-nitro-       8270        10
Parathion.............................         56-38-2  Phosphorothioic acid, 0,0-           8141         0.5
                                                         diethyl 0-(4-nitrophenyl)           8270        10
                                                         ester.
Penta chloro benzene..................        608-93-5  Benzene, pentachloro-.........       8270        10
Penta chloro nitro benzene............         82-68-8  Benzene, pentachloronitro-....       8270        20
Penta chloro phenol...................         87-86-5  Phenol, pentachloro-..........       8040         5
                                                                                             8270        50
Phenacetin............................         62-44-2  Acetamide, N-(4-ethoxyphenl)..       8270        20
Phenanthrene..........................         85-01-8  Phenanthrene..................       8100       200
                                                                                             8270        10
Phenol................................        108-95-2  Phenol........................       8040         1
p-Phenylene diamine...................        106-50-3  1,4-Benzene diamine...........       8270        10
Phorate...............................        298-02-2  Phosphoro dithioic acid, 0,0-        8140         2
                                                         diethyl S-[(ethylthio)methyl]       8141         0.5
                                                         ester.                              8270        10
Poly chlorinated biphenyls; PCBs;           See Note 9  1,1'-Biphenyl, chloro                8080        50
 Aroclors.                                               derivatives.                        8270       200
Pronamide.............................      23950-58-5  Benzamide, 3,5-dichloro-N-(1,1-      8270        10
                                                         dimethyl-2-propynyl)-.
Propio nitrile; Ethyl cyanide.........        107-12-0  Propane nitrile...............       8015        60
                                                                                             8260       150
Pyrene................................        129-00-0  Pyrene........................       8100       200
                                                                                             8270        10
Safrole...............................         94-59-7  1,3-Benzodioxole, 5-(2-              8270        10
                                                         propenyl)-.
Selenium..............................         (Total)  Selenium......................       6010       750
                                                                                             7740        20
                                                                                             7741        20
Silver................................         (Total)  Silver........................       6010        70
                                                                                             7760       100
                                                                                             7761        10
Silvex; 2,4,5-TP......................         93-72-1  Propanoic acid, 2-(2,4,5-            8150         2
                                                         trichlorophenoxy)-.
Styrene...............................        100-42-5  Benzene, ethenyl-.............       8020         1
                                                                                             8021         0.1
                                                                                             8260        10
Sulfide...............................      18496-25-8  Sulfide.......................       9030      4000
2,4,5-T; 2,4,5-Trichloro phenoxyacetic         93-76-5  Acetic acid, (2,4,5-trichloro        8150         2
 acid.                                                   phenoxy)-.
1,2,4,5-Tetrachloro benzene...........         95-94-3  Benzene, 1,2,4,5-tetrachloro-.       8270        10
1,1,1,2-Tetra chloroethane............        630-20-6  Ethane, 1,1,1,2-tetrachloro-..       8010         5
                                                                                             8021         0.05
                                                                                             8260         5
1,1,2,2-Tetrachloroethane.............         79-34-5  Ethane, 1,1,2,2-tetrachloro-..       8010         0.5
                                                                                             8021         0.1
                                                                                             8260         5
Tetrachloroethylene;                          127-18-4  Ethene, tetrachloro-..........       8010         0.5
 Tetrachloroethene; Perchloroethylene.                                                       8021         0.5
                                                                                             8260         5
2,3,4,6-Tetrachlorophenol.............         58-90-2  Phenol, 2,3,4,6-tetrachloro-..       8270        10
Thallium..............................         (Total)  Thallium......................       6010       400
                                                                                             7840      1000
                                                                                             7841        10
Tin...................................         (Total)  Tin...........................       6010        40
Toluene...............................        108-88-3  Benzene, methyl-..............       8020         2
                                                                                             8021         0.1
                                                                                             8260         5
o-Toluidine...........................         95-53-4  Benzenamine, 2-methyl-........       8270        10
Toxaphene.............................     See Note 10  Toxaphene.....................       8080         2
1,2,4-Trichlorobenzene................        120-82-1  Benzene, 1,2,4-trichloro-.....       8021         0.3
                                                                                             8120         0.5
                                                                                             8260        10
                                                                                             8270        10
1,1,1-Trichloroethane;                         71-55-6  Ethane, 1,1,1-trichloro-......       8010         0.3
 Methylchloroform.                                                                           8021         0.3
                                                                                             8260         5

[[Page 446]]


1,1,2-Trichloroethane.................         79-00-5  Ethane, 1,1,2-trichloro-......       8010         0.2
                                                                                             8260         5
Trichloroethylene; Trichloroethene....         79-01-6  Ethene, trichloro-............       8010         1
                                                                                             8021         0.2
                                                                                             8260         5
Trichlorofluoromethane; CFC-11........         75-69-4  Methane, trichlorofluoro-.....       8010        10
                                                                                             8021         0.3
                                                                                             8260         5
2,4,5-Trichlorophenol.................         95-95-4  Phenol, 2,4,5-trichloro-......       8270        10
2,4,6-Trichlorophenol.................         88-06-2  Phenol, 2,4,6-trichloro-......       8040         5
                                                                                             8270        10
1,2,3-Trichloropropane................         96-18-4  Propane, 1,2,3-trichloro-.....       8010        10
                                                                                             8021         5
                                                                                             8260        15
0,0,0-Triethyl phosphorothioate.......        126-68-1  Phosphorothioic acid, 0,0,0-         8270        10
                                                         triethylester.
sym-Trinitrobenzene...................         99-35-4  Benzene, 1,3,5-trinitro-......       8270        10
Vanadium..............................         (Total)  Vanadium......................       6010        80
                                                                                             7910      2000
                                                                                             7911        40
Vinyl acetate.........................        108-05-4  Acetic acid, ethenyl ester....       8260        50
Vinyl chloride; Chloroethene..........         75-01-4  Ethene, chloro-...............       8010         2
                                                                                             8021         0.4
                                                                                             8260        10
Xylene (total)........................     See Note 11  Benzene, dimethyl-............       8020         5
                                                                                             8021         0.2
                                                                                             8260         5
Zinc..................................         (Total)  Zinc..........................       6010        20
                                                                                             7950        50
                                                                                             7951         0.5
----------------------------------------------------------------------------------------------------------------
Notes
\1\ The regulatory requirements pertain only to the list of substances; the right hand columns (Methods and PQL)
  are given for informational purposes only. See also footnotes 5 and 6.
\2\ Common names are those widely used in government regulations, scientific publications, and commerce;
  synonyms exist for many chemicals.
\3\ Chemical Abstracts Service registry number. Where ``Total'' is entered, all species in the ground water that
  contain this element are included.
\4\ CAS index are those used in the 9th Collective Index.
\5\ Suggested Methods refer to analytical procedure numbers used in EPA Report SW-846 ``Test Methods for
  Evaluating Solid Waste'', third edition, November 1986, as revised, December 1987. Analytical details can be
  found in SW-846 and in documentation on file at the agency. CAUTION: The methods listed are representative SW-
  846 procedures and may not always be the most suitable method(s) for monitoring an analyte under the
  regulations.
\6\ Practical Quantitation Limits (PQLs) are the lowest concentrations of analytes in ground waters that can be
  realiably determined within specified limits of precision and accuracy by the indicated methods under routine
  laboratory operating conditions. The PQLs listed are generally stated to one significant figure. PQLs are
  based on 5 mL samples for volatile organics and 1 L samples for semivolatile organics. CAUTION: The PQL values
  in many cases are based only on a general estimate for the method and not on a determination for individual
  compounds; PQLs are not a part of the regulation.
\7\ This substance is often called Bis(2-chloroisopropyl) ether, the name Chemical Abstracts Service applies to
  its noncommercial isomer, Propane, 2,2[sec]-oxybis[2-chloro- (CAS RN 39638-32-9).
\8\ 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). PQL shown
  is for technical chlordane. PQLs of specific isomers are about 20 [micro]g/L by method 8270.
\9\ 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). The PQL shown is an average value for PCB congeners.
\10\ Toxaphene: This entry includes congener chemicals contained in technical toxaphene (CAS RN 8001-35-2),
  i.e., chlorinated camphene.
\11\ 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). PQLs for method 8021 are 0.2 for o-
  xylene and 0.1 for m- or p-xylene. The PQL for m-xylene is 2.0 [micro]g/L by method 8020 or 8260.


    Effective Date Note: At 70 FR 34556, June 14, 2005, Appendix II to 
part 258 was revised, effective July 14, 2005. For the convenience of 
the user, the revised text is set forth as follows:

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

------------------------------------------------------------------------
                                                     Chemical abstracts
       Common name \1\             CAS RN \2\        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-

[[Page 447]]


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-
                                                     Dimethanonaphthalen
                                                     e, 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[min]-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;           56-55-3.............  Benz[a]anthracene
 Benzanthracene.
Benzo[b]fluoranthene........  205-99-2............  Benz[e]acephenanthry
                                                     lene
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-
                                                     ,(1[alpha],2[alpha]
                                                     ,3[beta],4[alpha],5
                                                     [beta],6[beta])-
beta-BHC....................  319-85-7............  Cyclohexane,
                                                     1,2,3,4,5,6-
                                                     hexachloro-
                                                     ,(1[alpha],2[beta],
                                                     3[alpha],4[beta],5[
                                                     alpha],6[beta])-
delta-BHC...................  319-86-8............  Cyclohexane,
                                                     1,2,3,4,5,6-
                                                     hexachloro-
                                                     ,(1[alpha],2[alpha]
                                                     ,3[alpha],4[beta],5
                                                     [alpha],6[beta])-
gamma-BHC; Lindane..........  58-89-9.............  Cyclohexane,
                                                     1,2,3,4,5,6-
                                                     hexachloro-
                                                     ,(1[alpha],2[alpha]
                                                     , 3[beta],
                                                     4[alpha],5[alpha],6
                                                     [beta])-
Bis(2-chloroethoxy)methane..  111-91-1............  Ethane, 1,1[min]-
                                                     [methylenebis
                                                     (oxy)]bis [2-chloro-

Bis(2-chloroethyl)ether;      111-44-4............  Ethane, 1,1[min]-
 Dichloroethyl ether.                                oxybis[2-chloro-
Bis(2-chloro-1-methylethyl)   108-60-1............  Propane, 2,2[min]-
 ether; 2,2[min]-                                    oxybis[1-chloro-
 Dichlorodiisopropyl ether;
 DCIP, See footnote 4.
Bis(2-ethylhexyl) phthalate.  117-81-7............  1,2-
                                                     Benzenedicarboxylic
                                                     acid, bis(2-
                                                     ethylhexyl)ester
Bromochloromethane;           74-97-5.............  Methane, bromochloro-
 Chlorobromethane.
Bromodichloromethane;         75-27-4.............  Methane,
 Dibromochloromethane.                               bromodichloro-
Bromoform; Tribromomethane..  75-25-2.............  Methane, tribromo-
4-Bromophenyl phenyl ether..  101-55-3............  Benzene,1-bromo-4-
                                                     phenoxy-
Butyl benzyl phthalate;       85-68-7.............  1,2-
 Benzyl butyl phthalate.                             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-  59-50-7.............  Phenol, 4-chloro-3-
 3-methylphenol.                                     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-                   94-75-7.............  Acetic acid, (2,4-
 Dichlorophenoxyacetic acid.                         dichlorophenoxy)-
4,4[min]-DDD................  72-54-8.............  Benzene 1,1[min]-
                                                     (2,2-
                                                     dichloroethylidene)
                                                     bis[4-chloro-
4,4[min]-DDE................  72-55-9.............  Benzene, 1,1[min]-
                                                     (dichloroethenylide
                                                     ne) bis[4-chloro-
4,4[min]-DDT................  50-29-3.............  Benzene, 1,1[min]-
                                                     (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]anthracen
                                                     e
Dibenzofuran................  132-64-9............  Dibenzofuran

[[Page 448]]


Dibromochloromethane;         124-48-1............  Methane,
 Chlorodibromomethane.                               dibromochloro-
1,2-Dibromo-3-chloropropane;  96-12-8.............  Propane, 1,2-dibromo-
 DBCP.                                               3-chloro-
1,2-Dibromoethane; Ethylene   106-93-4............  Ethane, 1,2-dibromo-
 dibromide; EDB.
Di-n-butyl phthalate........  84-74-2.............  1,2-
                                                     Benzenedicarboxylic
                                                     acid, dibutyl ester
o-Dichlorobenzene; 1,2-       95-50-1.............  Benzene, 1,2-
 Dichlorobenzene.                                    dichloro-
m-Dichlorobenzene; 1,3-       541-73-1............  Benzene, 1,3-
 Dichlorobenzene.                                    dichloro-
p-Dichlorobenzene; 1,4-       106-46-7............  Benzene, 1,4-
 Dichlorobenzene.                                    dichloro-
3,3[min]-Dichlorobenzidine..  91-94-1.............  [1,1[min]-Biphenyl]-
                                                     4,4[min]-diamine,
                                                     3,3[min]-dichloro-
trans-1,4-Dichloro-2-butene.  110-57-6............  2-Butene, 1,4-
                                                     dichloro-, (E)-
Dichlorodifluoromethane; CFC  75-71-8.............  Methane,
 12.                                                 dichlorodifluoro-
1,1-Dichloroethane;           75-34-3.............  Ethane, 1,1-dichloro-
 Ethyldidene chloride.
1,2-Dichloroethane; Ethylene  107-06-2............  Ethane, 1,2-dichloro-
 dichloride.
1,1-Dichloroethylene; 1,1-    75-35-4.............  Ethene, 1,1-dichloro-
 Dichloroethene;
Vinylidene chloride cis-1,2-  156-59-2............  Ethene, 1,2-dichloro-
 Dichloroethylene; cis-1,2-                          (Z)-
 Dichloroethene.
trans-1,2-Dichloroethylene;   156-60-5............  Ethene, 1,2-dichloro-
 trans-1,2-Dichloroethene.                           , (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;          142-28-9............  Propane, 1,3-
 Trimethylene dichloride.                            dichloro-
2,2-Dichloropropane;          594-20-7............  Propane, 2,2-
 Isopropylidene chloride.                            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-,
                                                     (1a[alpha],2[beta],
                                                     2a[alpha],3[beta],6
                                                     [beta],6a[alpha],7[
                                                     beta],7a[alpha])-
Diethyl phthalate...........  84-66-2.............  1,2-
                                                     Benzenedicarboxylic
                                                     acid, diethyl ester
O,O-Diethyl O-2-pyrazinyl     297-97-2............  Phosphorothioic
 phosphorothioate; Thionazin.                        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-                         57-97-6.............  Benz[a]anthracene,
 Dimethylbenz[a]anthracene.                          7,12-dimethyl-
3,3[min]-Dimethylbenzidine..  119-93-7............  [1,1[min]-Biphenyl]-
                                                     4,4[min]-diamine,
                                                     3,3[min]-dimethyl-
alpha, &alpha-                122-09-8............  Benzeneethanamine,[a
 Dimethylphenethylamine.                             lpha][alpha]-
                                                     dimethy1
2,4-Dimethylphenol; m-        105-67-9............  Phenol, 2,4-dimethyl-
 Xylenol.
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-    534-52-1............  Phenol, 2-methyl-4,6-
 Dinitro-2-methylphenol.                             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-   88-85-7.............  Phenol, 2-(1-
 4,6-dinitrophenol.                                  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,
                                                     (3[alpha],5a[alpha]
                                                     ,6[beta],9[beta],
                                                     9a[alpha])-
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-,
                                                     (1a[alpha],
                                                     2[beta],2a[beta],
                                                     3[alpha],6[alpha],6
                                                     a[beta],7[beta],7a[
                                                     alpha])-
Endrin aldehyde.............  7421-93-4...........  1,2,4-Methenocyclo-
                                                     penta[cd]pentalene-
                                                     5-
                                                     carboxaldehyde,2,2a
                                                     ,3,3,4,7-
                                                     hexachlorodecahydro-
                                                      (1[alpha],2[beta],
                                                     2a[beta],4[beta],4a
                                                     [beta],5[beta],6a[b
                                                     eta],6b[beta],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)sul
                                                     fonyl]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-

[[Page 449]]


Heptachlor epoxide..........  1024-57-3...........  2,5-Methano-2H-
                                                     indeno[1,2-
                                                     b]oxirene,
                                                     2,3,4,5,6,7,7-
                                                     heptachlor-
                                                     1a,1b,5,5a,6,6a,-
                                                     hexahydr-
                                                     ,(1a[alpha],1b[beta
                                                     ],2[alpha],5[alpha]
                                                     ,5a[beta],6[beta],6
                                                     a[alpha])
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      591-78-6............  2-Hexanone
 ketone.
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-
                                                     Dimethanonaphthalen
                                                     e,1,2,3,4,1 0,10-
                                                     hexachloro-
                                                     1,4,4a,5,8,8a
                                                     hexahydro-
                                                     (1[alpha],
                                                     4[alpha],
                                                     4a[beta],5[beta],8[
                                                     beta],8a[beta])-
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[min]-
                                                     2-pyridinyl-N[min]-
                                                     (2-thienylmethyl)-
Methoxychlor................  72-43-5.............  Benzene, 1,1[min]-
                                                     (2,2,2,trichloroeth
                                                     ylidene)bis [4-
                                                     methoxy-
Methyl bromide; Bromomethane  74-83-9.............  Methane, bromo-
Methyl chloride;              74-87-3.............  Methane, chloro-
 Chloromethane.
3-Methylcholanthrene........  56-49-5.............  Benz[j]aceanthrylene
                                                     , 1,2-dihydro-3-
                                                     methyl-
Methyl ethyl ketone; MEK; 2-  78-93-3.............  2-Butanone
 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   298-00-0............  Phosphorothioic
 methyl.                                             acid, O,O-dimethyl
4-Methyl-2-pentanone; Methyl  108-10-1............  2-Pentanone, 4-
 isobutyl ketone.                                    methyl-
Methylene bromide;            74-95-3.............  Methane, dibromo-
 Dibromomethane.
Methylene chloride;           75-09-2.............  Methane, dichloro-
 Dichloromethane.
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-            88-74-4.............  Benzenamine, 2-nitro-
 Nitroaniline.
m-Nitroaniline; 3-            99-09-2.............  Benzenamine, 3-nitro-
 Nitroaniline.
p-Nitroaniline; 4-            100-01-6............  Benzenamine, 4-nitro-
 Nitroaniline.
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-    621-64-7............  1-Propanamine, N-
 Nitroso-N-dipropylamine; Di-                        nitroso-N-propyl-
 n-propylnitrosamine.
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;    See footnote 6......  1,1[min]-Biphenyl,
 PCBs.                                               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

[[Page 450]]


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-               93-76-5.............  Acetic acid, (2,4,5-
 Trichlorophenoxyacetic acid.                        trichlorophenoxy)-
2,3,7,8-TCDD; 2,3,7,8-        1746-01-6...........  Dibenzo[b,e][1,4]dio
 Tetrachlorodibenzo- p-                              xin, 2,3,7,8-
 dioxin.                                             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;          127-18-4............  Ethene, tetrachloro-
 Tetrachloroethene;
 Perchloroethylene.
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;        71-55-6.............  Ethane, 1,1,1-
 Methylchloroform.                                   trichloro-
1,1,2-Trichloroethane.......  79-00-5.............  Ethane, 1,1,2-
                                                     trichloro-
Trichloroethylene;            79-01-6.............  Ethene, trichloro-
 Trichloroethene.
Trichlorofluoromethane; CFC-  75-69-4.............  Methane,
 11.                                                 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                126-68-1............  Phosphorothioic
 phosphorothioate.                                   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[sec]-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).

                           PART 259 [RESERVED]