Pollution. Water pollution. Colorado Emperious Mining Co. ordered by Colorado Water Pollution Control Commission to improve minesacid drainage. Post Ja 12, 1972 p.23 RMN Ja 13, 1972 p.42 Monfort of Colorado, Inc. takes corrective measures pre- venting another spill of liquid beef fat into La Poudre River. RMN F 10, 1972 p.8 Water from high pressure wells degrading Colorado River water. Post Mr 19, 1972 p.56 Sand Creek near E. Colfax in Arapahoe county being polluted with building debris and junk. Post Mr 2, 1972 p.46