RESPONDENT FAILED TO CONDUCT TOTAL COLIFORM MONITORING DURING SEVERAL QTRLY COMPLIANCE PERIODS BETWEEN 1996 AND 1999; FAILED TO CONDUCT ANNUAL MONITORING FOR NITRATE IN 1996, 1997, 1998, AND 1999; FAILED TO CONDUCT NITRITE MONITORING BY DECEMBER 31, 1996; FAILED TO REPORT THE ABOVE VIOLATIONS TO THE STATE WITHIN 48 HOURS OF THE VIOLATIONS; FAILED TO ISSUE PUBLIC NOTIFICATION IN ASSOCIATION WITH THE ABOVE VIOLATIONS.