Constituents of Concern and 
                  Their Maximum Leachable Concentrations.

Values are based on information contained in Federal Registers Vol.
55 / Friday, July 27, 1990; Vol. 56 / June 7, 1991; and Integrated
Risk Information Systems, U.S. Environmental Protection Agency, and
40 CFR 264 Appendix 9.                                                              
                                                                                                         
             					   Concentration
Compound                       CAS No.                (mg/l)
                                                                  

Acenaphthene                   83-32-9                   210
Acetone                        67-64-1                   400
Acetonitrile                   75-05-8                    20
Acetophenone                   98-86-2                   400
Acrylamide                     79-06-1                  0.08
Acrylonitrile                 107-13-1                   0.6
Aniline                        62-53-3                    60
#Anthracene                   120-12-7               	1050
Antimony                     7440-36-0                     1
Arsenic                      7440-38-2                   1.8
Barium                       7440-39-3                 100.0
Benzene                        71-43-2                  0.50
Benzidine                      92-87-5                 0.002
Beryllium                    7440-41-7                  0.08
Bis(2-chloroethyl)ether       111-44-4                   0.3
Bis(2-ethylhexyl)             117-81-7                    30
    phthalate                       --                    --      
Bromodichloromethane           75-27-4                   0.3
Bromomethane                   74-83-9                     5
Butylbenzyl phthalate          85-68-7                   700
Cadmium                      7440-43-9                   0.5
Carbon disulfide               75-15-0                   400
Carbon tetrachloride           56-23-5                  0.50
Chlordane                      57-74-9                  0.03
Chlorobenzene                  08-90-7                 	  70
Chloroform                     67-66-3                 	 6.0
#Chloro-m-cresol, p            59-50-7                  7000
2-Chlorophenol                 95-57-8                 	  20
Chromium                     7440-47-3                 	 5.0
m-Cresol                      108-39-4                200.0*
o-Cresol                       95-48-7                200.0*
p-Cresol                      106-44-5                200.0*
DDD                            72-54-8                     1
DDE                            72-55-9                     1
DDT                            50-29-3                     1
Dibutyl phthalate              84-74-2                   400
1,4-Dichlorobenzene           106-46-7                   7.5
3,3-Dichlorobenzidine          91-94-1                   0.8
1,2-Dichloroethane            107-06-2                  0.50
Dichlorodifluoromethane        75-71-8                   700
1,1-Dichloroethylene           75-35-4                   0.6
1,3-Dichloropropene           542-75-6                     1
2,4-Dichlorophenol            120-83-2                    10
2,4-Dichlorophenoxy-           94-75-7                  10.0
   acetic acid (2,4-D)              --                    -- 
Dieldrin                       60-57-1                  0.02
Diethyl phthalate              84-66-2                  3000
Dimethoate                     60-51-5                    70
#2,4-Dimethylphenol           105-67-9                    70
#2,6-Dimethylphenol           576-26-1                    21
m-Dinitrobenzene               99-65-0                   0.4
2,4-Dinitrophenol              51-28-5                     7
2,4 -Dinitrotoluene           602-01-7                  0.13
  (and 2,6-, mixture)               --                    -- 
#Dinoseb                       88-85-7                   3.5
1,4-Dioxane                   123-91-1                    30
Dioxins (Poly chlorinated dibenzo-p-dioxins)
     2,3,7,8-TCDD            1746-01-6                 0.005
     1,2,3,7,8-PeCDD         0321-76-4                 0.010
   1,2,3,4,7,8-HxCDD        57653-85-7                 0.050
     1,2,3,6,7,8-HxCDD      34465-46-8                 0.050  
     1,2,3,7,8,9-HxCDD                                 0.050
Diphenylamine                 122-39-4                    90
1,2-Diphenylhydrazine         122-66-7                   0.4
Disulfoton                    298-04-4                   0.1
Endosulfan                    959-98-8                   0.2
Endrin                         72-20-8                  0.02
#2-Ethoxyethanol              110-80-5                  1400
Ethylbenzene                  100-41-4                   400
Ethylene dibromide            106-93-4                 0.004
#Ethylene Glycol              107-21-1                  7000
#Fluoranthene                 206-44-0                   140
#Fluorene                      86-73-7                   140
Furans (Polychlorinated dibenzo furans)
     2,3,7,8-TCDF           51207-31-9                 0.050
     1,2,3,7,8-PeCDF                                   0.100
     2,3,4,7,8-PeCDF                                   0.010
     1,2,3,4,7,8-HxCDF                                 0.050
     1,2,3,6,7,8-HxCDF                                 0.050
     1,2,3,7,8,9-HxCDF                                 0.050
Heptachlor                     76-44-8                 0.008
  (and its hydroxide)               --                    -- 
Heptachlor epoxide           1024-57-3                  0.04
Hexachlorobenzene             118-74-1                  0.13
Hexachloro-1,3-butadiene       87-68-3                   0.4
Hexachlorocyclopentadiene      77-47-4                    20
Hexachloroethane               67-72-1                   3.0
Hexachlorophene                70-30-4                     1
Isobutyl alcohol               78-83-1                  1000
Isophorone                     78-59-1                    90
Lead                         7439-92-1                   1.5
Lindane                        58-89-9                   0.3
Mercury                      7439-97-6                   0.2
Methacrylonitrile             126-98-7                   0.4
Methomyl                    16752-77-5                    90
Methoxychlor                   72-43-5                  10.0
#2-Methoxyethanol             109-86-4                  14.0
Methyl ethyl ketone            78-93-3                 200.0
Methyl isobutyl ketone        108-10-1                   200
Methylene chloride             75-09-2                    50
Methyl parathion              298-00-0                   0.9
#Mirex                       2385-85-5                   0.7
Nickel                       7440-02-0                    70
Nitrobenzene                   98-95-3                   2.0
N-Nitroso-di-n-butylamine     924-16-3                  0.06
N-Nitrosodiphenylamine         86-30-6                    70
N-Nitrosomethylethylamine   10595-95-6                  0.02
N-Nitroso-n-propylamine       621-64-7                  0.05
N-Nitrosopyrrolidine          930-55-2                   0.2
p-Phenylene diamine           106-50-3                    20
Parathion                      56-38-2                    20
Pentachlorobenzene            608-93-5                     3
Pentachloronitrobenzene        82-68-8                    10
Pentachlorophenol              87-86-5                 100.0
Phenol                        108-95-2                  2000
Pronamide                   23950-58-5                   300
#Pyrene                       129-00-0                   5.9
Pyridine                      110-86-1                     4
Selenium                     7782-49-2                   1.0
Silver                       7440-22-4                   5.0
Styrene                       100-42-5                   700
1,1,1,2-Tetrachloroethane     630-20-6                    10
1,1,2,2-Tetrachloroethane      79-34-5                     2
Tetrachloroethylene           127-18-4                   0.7
2,3,4,6-Tetrachlorophenol      58-90-2                   100
Toluene                       108-88-3                  1000
Toxaphene                    8001-35-2                   0.3
trans-1,3-Dichloro-           542-75-6                     1
    propene                         --                    --
Tribromomethane                75-25-2                    70
    (Bromoform)
1,2,4-Trichlorobenzene        120-82-1                    70
1,1,1-Trichloroethane          71-55-6                   300
Trichloroethylene              79-01-6                   0.5
1,1,2-Trichloroethane          79-00-5                     6
Trichlorofluoromethane         75-69-4                  1000
2,4,5-Trichlorophenoxy-        93-72-1                   1.0
    propionic acid                  --                    --
   (2,4,5 TP or Silvex)
1,2,3-Trichloropropane         96-18-4                    20
2,4,5-Trichlorophenol          95-95-4                 400.0
2,4,6-Trichlorophenol          88-06-2                     2
Vanadium Pentoxide           1314-62-1                    30
Vinyl chloride                 75-01-4                   0.2
Xylenes (all isomers)        1330-82-1                  7000

----------------------------------------------------------------
#    Constituent added since original rule publication.
*   If o-, m-, and p-Cresol concentrations cannot be differen-
    tiated, the total cresol concentration is used.  The Maximum
    Concentration for total cresol is 200.0 mg/l.