Summary: Compliance filing for Dockets TG-170189 Order 01 and TG-170977 Order 01, which is Tariff Supplement No. 4, replacing Tariff Supplements No.3 and generates approximately $100,300 (2.2 percent) in additional annual revenue. These tariff supplements adjust the annual remediation cost incurred by the company as a potentially liable party. The Company serves 5,800 customers in Benton, Franklin, and Walla Walla Counties. The Company's last general rate increase became effective June 1, 2017.
