Hydro-Excavating for all-new medium voltage conduits and cabling in operational combine cycle gas-fired power plant in Clatskanie, Oregon. Approximately. 27,650 feet of schedule 80 PVC underground, 83,500 feet of medium voltage cable from 1/0 to 750MCM, and over 200 medium voltage terminations. Installation of new owner furnished medium voltage switchgear in 2 shipping splits switching over redundant systems one at a time to maintain plant operations and generation. Replacement of 15 medium voltage PCB filled supply transformers (the last PCB oil-filled transformers in the entire PGE system) with OFCI new xmers.