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1 <br /> ROY F. WESTON, INC. <br /> STOCKTON ANALYTICAL LABORATORY <br /> ANALYTICAL CASE NARRATIVE <br /> Client: Treatek <br /> ' RFW# : 9112S471 <br /> Inorganics Case Narrative <br /> 1. Analyses completed in accordance with methods 6010, 7060, <br /> 7740, 7841, 7471, 7196 and 340. 2 with the exceptions noted <br /> below. <br /> 2. The sample was received at 18 degrees centigrade, above the <br /> EPA recommended 4 ± 2. <br /> 3 . Soils are reported in mg/kg dry weight with the exception of <br /> Fluoride and Hexavalent Chromium. Fluoride and Hexavalent <br /> ' Chromium are analyzed on a deionized water extraction and <br /> reported in mg/l leachate. <br /> ' 4. Spike recoveries for Arsenic and Selenium were below the <br /> control limit. <br /> -1 <br /> l I <br /> T. L. Hammonds Date <br /> Unit Leader <br /> 1 <br /> 1 <br /> 1 <br />