ON 09/17/91 AN EMERGENCY ADMINISTRATIVE ORDER WAS ISSUED TO HIGH COUNTRY WATER DISTRICT IN JACKSON, WYOMING BASED ON THE EPA FINDING THAT THE PRESENCE OF THE CONTAMINANT FECAL COLIFORM/E.COLI IN THE WATER SUPPLY PRESENTED AN IMMINENT AND SUBSTANTIAL ENDANGERMENT TO THE HEALTH OF THE PEOPLE SERVED. A FOLLOW-UP LETTER DATED 02/06/92 INDICATED THAT SAMPLES FROM NOVEMBER AND DECEMBER, 1991 DEMONSTRATED THAT THE WATER WAS SAFE FOR THAT PERIOD. THE LETTER ALSO POINTED OUT, HOWEVER, THAT UNSAFE BACTERIOLOGICAL WATER QUALITY IN THEIR SYSTEM HAS HISTORICALLY OCCURRED DURING THE SUMMER, AND BECAUSE OF THIS, HIGH COUNTRY WATER WOULD BE REQUIRED TO RETURN TO A WEEKLY BACTERIOLOGICAL MONITORING SCHEDULE BEGINNING JUNE 1. 1992.