APPLETON PAPERS INC VIOLATED ITS INDUSTRIAL PRETREATMENT LO- CAL LIMITATIONS FOR COPPER, ZINC, AND PH FROM 5/87 THROUGH 4/89 AND FROM 1/90 THROUGH 4/91. APPLETON PAPERS CONSTRUCT- ED A NEW PRETREATMENT PLANT WHICH WAS OPERATIONAL 5/91. THIS COMPANY HAS NOT BEEN APPROACHED FOR SETTLEMENT NEGOTIA- TIONS, BUT THE BOTTOM-LINE IS SO HIGH THAT THERE MAY NOT BE A POINT.