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Show ARSENIC (ppm) CADMIUM (ppm) LEAD (ppm) SELENIUM (ppm) MINIMUM <5 <l <2 <4 MAXIMUM 270 6.3 11000 30 AVERAGE* 100 2.5 1971 4.9 The Concentrate Loading Site (M06) is an active operations area consisting of a rail line and a overhead concentrate chute that loads the rail cars. This site has not been characterized to date. The East Debris Site (M09) consists of predominately waste ore and metal debris. Characterization sampling indicates six of the eighteen samples are elevated in total arsenic (215 ppm, 390 ppm, 210 ppm, 990 ppm and 360 ppm) and(or) total lead (4940 ppm, 4900 ppm, 4800 ppm and 9900 ppm). The Sites' overall average, maximum and minimum are listed below. • ARSENIC (ppm) CADMIUM (ppm) LEAD (ppm) SELENIUM (ppm) MINIMUM <5 0.59 12.2 <4 MAXIMUM 990 14 9900 41 AVERAGE* 163 4.7 1506 7.4 C.3 .1.3 Utah Power Plant Above the Magna Concentrator is the Utah Power Plant with 175-megawatt generating capacity for the North Facilities operations. The plant has the capability of burning coal and(or) natural gas as fuel sources. The Power Plant was inspected on November 24, 1987, by representatives of the Utah Bureau of Solid and Hazardous Waste and the Salt Lake City-County Health Department to investigate allegations of improper disposal of materials. Improper disposal was never substantiated and it was determined that "no substantial threat to human health or the environment exists" due to operations. It was recommended that no further action be taken (EPA No. UTD980959282). Subsequent to that investigation, Kennecott has not found any inorganic concerns at the Power Plant. C.3 .1.4 Bonneville Crusher • The Bonneville Crushing and Grinding facility was constructed in 1966 and receives ore by rail from the Bingham Canyon Mine. The Bonneville facility is currently operational with crushed ore being supplied to and processed at the Magna Concentrator. After processing, concentrate is sent from the North Concentrator area to the Smelter or shipped by rail to customers. The Bonneville Area consists of four sites. All four soil sites have been characterized and are below all total metals action levels (AL). No demolition sites have been identified to date at Bonneville . Appendix C* 7 July 18, 1996 Rev. C |
