Summary: Tariff revisions that would generate approximately $14,400 (2.0 percent) additional annual revenue to recover the increased cost of disposal fees set by King County. On January 1, 2019, disposal fees will increase from $134.59 per ton to $140.82 per ton at the King County solid waste system facilities. Vashon Disposal serves approximately 2,300 garbage customers in King County. The company's last general rate increase became effective on January 1, 2013.