Summary: Proposed rate increase in Tariff 17 for Item 230, drop box disposal fees. On March 1, 2019, drop box disposal fees, set by Okanogan County, at the Bridgeport Bar transfer station will increase from $74.00 per ton to $81.50 per ton. This is a pass through fee increase that effects drop box customers only. The company serves 32 drop box customers in Okanogan and Douglas County. The company's last general rate increase became effective on September 1, 2012.