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Show f C.2.5 Land Use Land use in the vicinity of the North Facilities is industrial, associated with Kennecott mineral processing. Transportation corridors located north of the Facilities include State Highway 201, Union Pacific Railroad, and federal Interstate Route 80. Other facilities in the area not operated by Kennecott are Union Pacific Resources north of the Smelter and Praxair (oxygen plant) near the Refinery. The Chevron Chemical Property has recently been acquired by Kennecott to facilitate the Tailings Impoundment Expansion and Modernization Project. Great Salt Lake beaches and the Great Salt Lake State Park and Marina are north of the Facilities. The nearest areas of human habitation include the cities of Magna and Lake Point, about four miles east and west of the Smelter, respectively. C.3.0 NORTH FACILITIES HISTORY The Kennecott Smelter/Refinery Modernization will replace several process units at the Smelter, Refinery, and Wastewater Treatment Plant (WWTP) adjacent to State Highway 201 (along with other ancillary facilities at Arthur, Bonneville, and Magna Concentrators). It was determined from sampling activities that soil and associated debris affiliated with the North Facilities contain elevated levels of heavy metals. This Sampling Plan is based on previously collected and current data, operational history of the facilities, and previous removal actions conducted by Kennecott. The following provides an operational history of the major facilities and a description of the soil and demolition sites identified to date. Detailed characterization reports will be submitted as addenda to the Soil and Demolition Debris Quality Assurance Project Plan and Sampling and Analysis Plan as studies are completed. C.3.1 North Concentrator Area The North Concentrator Area includes four main facilities at the north end of the Oquirrh Mountains east of the refinery; the Arthur Concentrator, the Magna Concentrator, the Utah Power Plant, and the Bonneville Crusher (Dwg. No. 507-T-0173). C .3 .1.1 Arthur Concentrator The Arthur Concentrator, built in 1909 by Boston Consolidated (acquired by Utah Copper in 1910), included crushing, grinding, flotation, and filter plant processing facilities. Ancillary facilities included a steel and brass foundry, boiler shop, machine shop, paint shop, and a reagent circuit (Arthur Stills). In 1975, a tailings re-treatment plant was added. Operations at the facilities were halted in 1985 and 1986 during the Kennecott shutdown. The processing area (excluding the maintenance shops and administration building currently in use) was demolished in 1988 and 1989. The tailings re-treatment plant was demolished in 1992. Currently, no Appendix C* 4 July 18, 1996 Rev. C |
