SALT RIVER PROJECT: SUPERIOR TO SILVER KING 115 kV TRANSMISSION LINE REROUTE, PINAL COUNTY, ARIZONA Prepared by: William L. Deaver Reviewed and Submitted by: Fred Huntington 4001 East Paradise Falls Drive Tucson, Arizona 85712 (520) 206-9585 Cultur...
Mining/exploitation and commercial applications of the rare-earth elements (REEs: La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) in the past 3 decades have raised concerns about their emissions to the environment, possible accumulation in fo