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r III IIIIIIIIIIIII III <br /> This method provides for 24 hours of gentle mixing of 5 kilograms of solid sample with an equal <br /> weight of "synthetic meteoric precipitation" (tap water made slightly acidic [pH 5.5 to 6.51 with <br /> nitric and sulfuric acid). A bottle rolling apparatus is used for this purpose. Knight Pi6sold will <br /> perform the batch leaching procedure. The method provides an accepted indication of constituent <br /> leachability due to exposure to typically acidic rain or snowfall. <br /> Following the 24-hour period batch leaching period, the mixture is allowed to settle for one hour <br /> and a liquid sample is removed, filtered (0.45 µm) and prepared for analysis. Variables such as <br /> pH and conductivity will be measured at the conclusion of the extraction. A commercial <br /> laboratory will be selected for all analyses listed in Section 4.0. <br /> 4.0 ANALYSIS OF BATCH EXTRACT <br /> The following analytes and properties of the batch extract will be determined by a selected <br /> commercial laboratory. The list includes those parameters specified in domestic, agricultural <br /> and/or livestock water quality standards (Wyoming Department of Environmental Quality, Water <br /> Quality Rules and Regulation, Chapter VIII, Table I). Analytical detection limits and methods <br /> are provided by <br /> Parameter Wyoming Ground Detection Limit Method <br /> W <br /> Aluminum 5.0(A, L) 0.03 EPA 200.7, ICP <br /> Antimony 0.0060 0.0002 EPA 200.8. ICP-MS <br /> Arsenic 0.05 (D) 0.001 EPA 200.8, ICP-MS <br /> Barium 1.0(D) 0.003 EPA 200.7, ICP <br /> Beryllium 0.1 (A) 0.002 EPA 200.7, ICP <br /> Boron 0.75 (D, A) 0.01 EPA 200.7, ICP <br /> Cadmium 0.01 (D, A) 0.003 EPA 200.7, ICP <br /> Calcium 0.2 EPA 200.7. ICP <br /> Chloride 100(A) 1 EPA 325.2 <br /> Chromium 0.05 (D, L) 0.01 EPA 200.7. ICP <br />