Maximum Contaminant Levels (MCLs).

Values obtained from 40 CFR Part 141, Subparts B and G, Maximum
Contaminant Levels and 40 CFR Part 143, Total Dissolved Solids.

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Constituent                                  MCL (mg/l)
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 Arsenic                                      0.05
 Barium                                       1
*Benzene                                      0.005
 Cadmium                                      0.005
*Carbon tetrachloride                         0.005
 Chlordane                                    0.002
*Chlorobenzene                                0.1 
 Chromium                                     0.1
 2,4-D                                        0.07
*Dibromochloropropane                         0.0002
*ortho-Dichlorobenzene                        0.6
*para-Dichlorobenzene                         0.075
*1,2-Dichloroethane                           0.005
*1,1-Dichloroethylene                         0.007
*trans-1,2-Dichloroethylene                   0.1
*1,2-Dichloropropane                          0.005
*Ethylbenzene                                 0.7
 Heptachlor                                    .0004
 Heptachlor epoxide                           0.0002
 Lead                                         0.05
 Mercury                                      0.002
 Methoxychlor                                 0.04
 Pentachlorophenol                            0.001
 Selenium                                     0.05
 Silver                                       0.05
*Styrene                                      0.1
*Tetrachloroethylene                          0.005
*1,1,1-Trichloroethane                        0.20
*Trichloroethylene                            0.005
*Toluene                                      1
 Toxaphene                                    0.003
 2,4,5-TP (Silvex)                            0.05
*Vinyl chloride                               0.002
*Xylenes (total)                             10
 Total Dissolved Solids                     500

* For a class 3 waste classification, these constituents must also be evaluated
using the test methods described in 40 Code of Federal Regulations Part 261,
Appendix II. See 335.507(4)(A)(ii) for additional information.