This is an Administrative Order (AO) pursuant to the SDWA issued to Calaveras County Water District (CCWD) for violations in their drinking water distribution system. The violation involves running annual average violations of the maximum contaminant level for haloacetic acids. The Order directs CCWD to submit a plan that will bring the District into compliance with the MCL by June 30, 2006, to actually achieve this compliance and to redetermine the location of the maximum residence time of the water.