MILLIPORE CORP IS A MANUFACTURER OF FILTER AND LIQUID SEPARATION PRODUCTS USED BY THE PHARMACEUTICAL, HIGH-TECH, AND FOOD PRODUCTS INDUSTRIES. ITS FACILITY IN JAFFREY, NH, HAS BEEN DISCHARGING POLLUTANTS SINCE 1972 INTO A TRIBUTARY OF AN UNNAMED STREAM WHICH FEEDS INTO THE CONTOOCOOK LAKE & FROM THERE, THE CONTOOCOOK RIVER. THE DISCHARGES FROM PLANT OPERATIONS TOTAL MORE THAN 120,000 GALLONS/DAY AND RE- CEIVE NO TREATMENT. THE COMPANY HOLDS A RCRA PERMIT FOR STORAGE IN THIS FACILITY, BUT HAS BEEN OPERATING W/O AN NPDES PERMIT SINCE 1972 AND ONLY FILED AN APPLICATION FOR SUCH A PERMIT IN DECEMBER OF 1983.