Ronald Sewer District (District) appeals from a summary judgment in favor of respondents Mills, dismissing its suit to foreclose a lien against Mills property for nonpayment of sewer service charges. The District is a municipal corporation located in King County, Washington, organized pursuant to RCW 56.04, whose purpose is "acquirement, construction, [and] maintenance . . . of a system of sewers . . ." RCW 56.04.020. It forms Utility Local Improvement District No. 11, which includes the property at 19532 14th Avenue N.E., Seattle, Washington, owned by Mills.