The water user charges shall be established by resolution by the council upon the passage of this chapter. These charges shall be reviewed from time to time and updated, by resolution of the council, to reflect actual costs of operation, maintenance, replacement, and financing of the water system and their facilities. Any revisions of the user charges shall be based on actual operation, maintenance, replacement, and financing expenses and the total water usage. Revisions due only to changes in expenses and user class shall be made by the city. All changes in user charges applicable to this chapter shall be computed by the methods outlined herein. (Ord. 2004-3, 9-23-2004)