Summary: General rate increase in Item 230, drop box disposal fees requested by Waste Management of Kennewick. On December 4, 2017, drop box disposal fees, set by Waste Management Northwest, at the Kennewick Transfer Station will increase from $39.04 per ton to $59.95 per ton. Annual drop box disposal revenues and expenses would increase by approximately $40,000 (2.8 percent). The company serves approximately 200 drop box customers in Benton County. The company's last general rate increase became effective on December 1, 2010.