The city treasurer shall mail to each person whose name appears on the assessment roll as owner of the property charged with any assessment or installment which is delinquent, at the address last known to the city treasurer, a notice at least 30 days before the commencement of any action to foreclose a delinquent assessment. The notice shall state the amount due on each separate lot, tract or parcel of land, and the date after which the proceedings will commence. (Ord. 532 § 2, 1968).