As of the effective date of the ordinance codified in this chapter, in addition to any other sewer or water connection charges or permit fees required by the general ordinances of the city there is imposed a special connection charge upon the owners of properties lying in areas serviced under development contracts between the city and third parties, which properties have not been assessed or charged or borne an equitable share of the actual cost of the sewer or water improvement resulting from the development. Prior to connection to the city sewer or water system installed under the contract, the special connection charge in an amount to be computed as set forth in Section 13.12.020 shall be paid in cash or under installment contract, with interest at six percent per year computed annually on unpaid balances. Such contract shall provide for a down payment of ten percent of the total connection charge, payable upon execution of such contract, and for the payment of the balance in not to exceed ten equal annual installments, payable on or before July 1st of each year. Such installment contract shall provide that any unpaid balance may be paid in full at any payment date set forth therein, shall describe the property served by the sewer or water line, shall be acknowledged by the property owner, and shall be recorded by the city engineer in the office of the county auditor, at the expense of the property owner. Delinquent payments under such installment contract relating to a sewer improvement shall be a lien upon the described property as provided in RCW 35.67.200, enforceable in accordance with RCW 35.67.220 through 35.67.280; and as an additional and concurrent method of enforcing the lien, the water service to such property may be cut off in accordance with RCW 35.67.290 until the delinquent installments are paid. In water line improvements, the city is authorized to exercise all liens conferred by statutes of the state in connection with water systems and also all methods of enforcing payment of bills for water service in connection with collection of any and all delinquent payments under such installment contract. Upon payment in full of the contract, the city engineer, on behalf of the city, shall execute and deliver to the property owner a release of such lien. (Ord. 1480 § 1, 1969)