Proceedings by the city to foreclose delinquent local improvement district assessments or utility local improvement district assessments or delinquent installments thereof authorized by Revised Code of Washington 35.50.030 shall be commenced on or before June 1st, but not before the city finance director has mailed to the persons whose names appear on the assessments roll as owners of the property charged with the assessments or installments which are delinquent, at the address last known to the finance director, a notice thirty days before the commencement of proceedings setting forth the amount due upon each separate lot, tract or parcel of land and the date after which the proceedings will be commenced. (Ord. 1021 §33, 1995; Ord. 334 (part), 1974).