After the Council has determined that a local improvement shall be made and when the estimated cost has been ascertained on the basis of contract awarded or city departmental costs, or after the work has been done and the cost thereof actually determined the Council shall, if it has not already done so, determine whether the property specially benefited shall bear all or a portion of said cost and thereafter the Council shall designate the City Recorder or other city official to prepare the proposed assessment to the respective lots or parcels of land specially benefited by said improvement and within the assessment district; said proposed assessment shall be filed in the office of the City Recorder. Thereafter notice of said proposed assessment shall be mailed or personally delivered to the owner of each lot or parcel of land proposed to be assessed, which notice shall state the amount of proposed assessment on said property, a date by which time objections thereto shall be filed with the Recorder and said notice shall indicate that any objections to said proposed assessment shall state the grounds thereof. (Ord. 2-1961 § 8, 1961.)