Public service company of Colorado Colorado.Project/Common Cause to protest utilities hike before U.S. Price Commission. Post D 17, 1971 p.28 RMN D 18, 1971 p.108 Request to dismiss rate hike by Colorado Project/Common Cause denied. RMN D 22, 1971 p.5 Post D 22, 1971..p.4 $128 million capital budget approved. Post D 16, 1971 p.47 RMN D 16,-1971 p.113 Colorado Public Utilities Commission rules for retail rate increase. RMN D 16, 1971 p.118