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Show MAGNA CONCENTRATE LOADING SITE (M06) CHARACTERIZATION SAMPLING REPORT INTRODUCTION The Magna Concentrate Loading Site is an inactive operational area consisting of a railroad spur and an overhead copper concentrate chute. The chute loaded rail cars with copper concentrate from the North Concentrator for shipment to the smelter. The site covers an area appromately 200,000 square feet. Twenty-seven characterization samples were collected from the area during June 1999. The samples were collected from the surface and from test trenches excavated with a backhoe. The samples were analyzed for total arsenic, cadmium, lead and selenium concentrations at Kennecott Environmental Laboratory (KEL) and for leachabl e arsenic, barium, cadmium, chromium, lead, mercury, selenium and silver (RCRA eight metals) concentrations using the Synthetic Precipitation Leaching Procedure (SPLP). LOCATION AND DESCRIPTION The Magna Concentrate Loading Site is located on the north side of the North Concent rator complex (see Dwg. No. 507-T-0 173), limited from the north by a frontage road connecti ng Bravo gate with Bonneville gate and to the south by the Magna Mill. The site consists of a 1650 feet long by 15 to 150 feet wide strip that trends east-west adjacent to the frontage road and includes two sets of railroad tracks. The first set of railroad tracks parallels the frontage road and the second set of tracks intersects with the first tracks and connects to the Magna Mill building. The total area of the site, including the two rail lines and the areas between, is 200,000 square feet. Included in the area is 40,000 square feet concrete pad, which will not be characterized. PREVIOUS WORK No previous sampling has been done at this site, and it has not been characterized before. SAMPLE COLLECTION A total of 27 characterization samples were collected from the Site (see Dwg. No. 507-T-0 193). The samples were assigned the identification numbers MG99Z00O 1 through MG99Z 0027. Two samples were split as part of Quality Assurance/Quality Control (QA/QC) procedures and the split samples were assigned the identification numbers MG99S000 1 through MG99S0002. Sample locations were chosen in an attempt to define the lateral and vertical limits of contaminated soil. Fourteen samples were collected as composite samples from the top layer (0 M06ZRPT.DOC 11/28/01 |
