Peter C. Nelson was named president and CEO of California Water Service Co. Nelson also will be a director. He comes from Pacific Gas & Electric Co., where he was v.p.-division operations. He replaces the retiring Donald L. Houck.
Jack Lucido of ANR Pipeline Co. was elected to the American Gas Association's pipeline research committee, succeeding Gary Walker of Pacific Transmission Co.
The Electric Power Research Institute hired Karl G. Van Orsdol as senior manager, international relations.