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1 <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />ccRS, toe. <br />agitated test where as the SGCLP test is not. The SGCLP test was conducted at CSU with the <br />collected water samples sent to Analytica Environmental Labs for chemical analyses. <br />• Sulfate • Chloride • Fluoride Cyanide <br />• Mercury • Nitrite• Nitrate <br />• 10 other metals from the following list of 20 metals (Aluminum, Antimony, <br />Arsenic, Barium, Beryllium, Boron, Cadmium, Chromium, Cobalt, Copper, Iron, <br />Lead, Lithium, Manganese, Nickel, Selenium, Silver, Thallium, Vanadium and <br />Zinc). Conductivity and pH will of the leachate was measured at CSU prior to <br />sending the sample to the laboratory far chemical analysis. <br />3.0 ANALYTICAL RESULTS <br />3.1 "Sequential ErtraMion Leaching Procedure^ (SEEP) <br />Analytical results for the SEEP are presented in Table 2. As mentioned, the purpose of the SEEP <br />testing was to estimate the maximum leaching capability of a material. In general, substantial <br />concentration reductions were observed in second extraction analyses. Of the metals analyzed, at <br />all pHs Aluminum, Boron, Iron and Manganese appeared to be the most leachable. None of these <br />elements are listed in the primary drinking water standards. It appears that variations in pH have <br />some effect in leaching characteristics of the sample set. At a pH of 8.5, there were 14 elements <br />that exceeded standards in samples obtained from Cherokee Silo Ash 2/3. These concentrations <br />were generally much higher than other ash samples as well. Recycled asphalt had the next highest <br />number of elements that were in excess of drinking water standards for metals. <br />At a pH of 7, samples obtained from Class F Silo Ash with Gypsum appeared to be the most <br />leachable and at a pH of 5, samples obtained from the recycled asphalt had the most elements <br />exceeding drinking water standards. Of the nonmetals fluoride appeared to be the most leachable <br />compound, insofar as having the most number of samples exceeding the agicultural water quality <br />standard. <br />3.2 "Toxic Characteristics Leachiug Procedure" (TCLP) <br />The results of TCLP testing are presented in Table 3. A review of Table 3 shows that none of the <br />samples tested exhibited characteristics of a hazardous waste. Overall, analyte concentrations were <br />7 <br />