A RELEASE OF APPROXIMTELY 1840 POUNDS OF ANHYDROUS AMMONIA WAS RELEASEDFROM THE FACILITY INTO THE AIR ON JANUARY 11, 1992. THE RELEASE WASDISCOVERED AROUND 11:00 AM ON THAT DATE. TWO EMPLOYEES AT THE PLANTNOTICED OR HAD CALLED TO THEIR ATTENTION, THE SMELLS OF AMMONIA. THEYTOOK NO ACTION, HOWEVER, AND A SOMEONE AT A NEIGHBORING FACILITY CALLEDIN THE ODOR TO THE FIRE DEPARTMENT AT ABOUT THIS SAME TIME. THE FIREDEPARTMENT ARRIVED BUT WAS UNABLE TO CONTACT THE PLANT MANAGER UNTILAROUND 1:00 P.M. THE FACILITY DID NOT NOTIFY THE NRC UNTIL 1930 HOURS(7:30 PM), NOR THE MINNESOTAT EMERGENCY RESPONSE COMMISSION UNTIL 1845HOURS (6:45 P.M.). THE RESPONDENT SUBMITTED A WRITTEN NOTIFICATION ONFEBRUARY 5, 1992, THE COMPLAINT ALLEGES THE RESPONDENTFAILED TO NOTIFY THE NRC AND MERC IMMEDIATELY AND THATWRITTEN NOTIFICATION WAS LATE.