RESPONDENT FAILED TO CONDUCT TOTAL COLIFORM MONITORING DURING SEVERAL QUARTERLY COMPLIANCE PERIODS BETWEEN 1994 AND 1999; FAILED TO CONDUCT ANNUAL MONITORING FOR NITRATE IN 1994, 1995, 1996, 1997, AND 1998; FAILED TO CONDUCT NITRATE MONITORING BY 12/13/95; FAILED TO REPORT THE VIOLATIONS TO THE SATE WITHIN 48 HOURS; FAILED TO ISSUE PUBLIC NOTIFICATION IN ASSOCIATION WITH THE VIOLATIONS