Summary: Request for Commission approval to operate a proposed new twelve inch pipeline at a Maximum Allowable Operating Pressure (MAOP) of 499 psig, within 100 feet of existing structures intended for human occupancy, pursuant to WAC 480-93-020. The new 20,500 foot segment of twelve inch pipeline, named Kitsap Phase 4, will be located in rural Mason County about 2 miles northeast of Shelton, WA.