Section 304.202  Chlor-alkali Mercury Discharges in St. Clair County

The mercury discharge standards of Sections 304.124 and 307.103 shall not apply to any manufacturing facility which operates chlor-alkali cells, is located in St. Clair County and discharges directly or indirectly into the Mississippi River; or to any publicly owned treatment works which receives such a manufacturing facility's wastewater.  The amount of mercury discharged by any such manufacturing facility shall not exceed an average of 114 g/day (0.25 pounds per day) during any calendar month and maximum of 227 g (0.5 pounds per day) during any calendar month and maximum of 227 g (0.5 pounds) during any one day.  Any publicly owned treatment works which, directly or indirectly, receives such a manufacturing facility's wastewater shall be entitled to discharge mercury in excess of the levels provided in Section 304.124 to the extent that said discharge exceeds those levels because of such a manufacturing facility's discharge.

(Source:  Amended at 6 Ill. Reg. 563, effective December 24, 1981)