It shall be the duty of the person against whose lot or parcel of land such assessment is made to pay to the City Clerk the amount of each assessment with ten percent (10%) interest thereon from date of the levy of the assessment, and in case such assessment or assessments remain unpaid by November 1 of each year, they shall be certified by the Clerk to the County Treasurer, and shall be paid to and collected by the County Treasurer as ordinary taxes.