APPENDIX A

Local Discharge Limitations - Wyandotte WWTP

   No.   Parameters   Limit

         (Average Daily Concentration)

   1.   Arsenic, total   0.08 mg/l

   2.   Cadmium, total   1.20 mg/l

   3.   Chromium, total   15.0 mg/l

   4.   Copper, total   4.5 mg/l

   5.   Cyanide, total   1.80 mg/l

   6.   Lead, total   0.32 mg/l

   7.   Mercury, total   Non-detectable* mg/l

   8.   Nickel, total   6.00 mg/l

   9.   Silver, total   0.43 mg/l

   10.   Zinc, total   5.00 mg/l

   11.   Fats, Oil and Grease (FOG)   100.0 mg/l

   12.   Phenolics, total   1.0 mg/l

   13.   Polychlorinated Biphenyls   Non-detectable* mg/l

      (PCBs)

   14.   pH   5.0 - 11.5 s.u.

   15.   Biochemical Oxygen

      Demand (BODs)   4,000 mg/l

   16.   Total Phosphorous   177 mg/l

   17.   Total Suspended Solids (TSS)   10,000 mg/l

   18.   Chloroform   0.25 mg/l

   19.   Methylene Chloride   0.25 mg/l

   20.   Tetrachloroethylene   0.25 mg/l

   21.   Toluene   1.0 mg/l

   22.   Trichloroethylene   0.5 mg/l

   23.   BTEX (Benzene, Toluene, Ethylbenzene, Xylene)   2.0 mg/l

The quantification level shall not exceed 0.1 ug/l for PCB's and 0.2 ug/l for mercury, unless higher levels are appropriate because of sample matrix interference. Any discharge of PCB's or mercury at or above the quantification level is a specific violation of this Ordinance. This paragraph does not authorize the discharge of PCB's or mercury at levels which are injurious to the designated uses of the waters of the State or which constitute a threat to the public health or welfare. If a quantification level is specified in or approved under 40 CFR 136 or pursuant to rules adopted by the State of Michigan to implement the Great Lakes Initiative for PCB's or mercury, the quantification level in a permit issued pursuant to this Ordinance may be changed, upon County Agency approval, to incorporate such promulgated quantification level.

(Ord. 712. Passed 2-14-01.)