Trash Colorado Public Utilities Commission recent ruling cripples business of small trash collectors, Post Ap 239 1972 p,1922 RMN AP 259 1972 p.10 Public Utilities Commission rules that independent trash haulers in the state must cut back the territories that they serve. Cervils Journal Ap 20, 1972 p,l Coors Co. to construct plant to convert Denver area solid waste into recycling materials and energy. RMN D 12, 1972 P.5 RMN D 14, 1972 p.8 Post D 14, 1972 p.32