Summary: Tariff revisions to recover increases in the King County Hazardous Waste Tax. On January 1, 2021, the King County Board of Health is increasing Local Hazardous Waste Management Plan fees by approximately 5.4 percent. Single family customers will see an increase of $0.05 per month; commercial customers will see increases of between $0.09 and $2.77 based on container size. The company serves approximately 2,125 residential and 230 commercial customers on Vashon Island in King County.