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<br /> <br />Approximately one-half hour after the SPLP test was begun, the leachate had a pH of 12.5 and a specific <br />conductance (SC) of 10,b00 tunhos. At the end of the 18-hour test, the pH was 12.7, the SC was 12,300 <br />umhos, and the chloride and sulfate concentrations were 77.2 and 3,800 mg/L, respectively. The reported <br />trace and minor constituent concentrations detected at the end of the 18-hour SPLP test were (in mg/L): <br />selenium (0.013), nickel (0.061), aluminum (0.59), iron (0.24), manganese (0.028); the major constituents <br />calcium and sodium were 251 and 195 mg/L, respectively. All other minor constituents were below the <br />laboratory detection limits. <br />The laboratory reports for both the modified TCLP and for the SPLP tests are included in Appendix G of <br />the attached Hydrogeologic Assessment. <br />~u -Ca~vl/' <br />;G' <br />L.r-C.G~•-~- <br /> <br />lay,fK~G <br />/~ ' <br /> / <br />M~3 <br />v~ ~ <br />Ka~ <br />/ ~' <br />v <br />V - <br />ZK-ZrKL v <br /> v <br /> L <br /> V <br /> <br /> <br /> <br /> <br />Sorb <br />Table 3. CIS /Sludge Leach Test Results <br />Analyte Historic TCLP TCLP <br />(pH 7.01) SPLP <br />(pH 5.1) <br />Arsenic 0.001 - 0.007 <0.006 <0.005 <br />Antimony NA <0.2 NA <br />Barium 0.42 - 2.58 <0.1 <0.1 <br />Beryllium NA <0.01 <0.01 <br />Cadmium <0.005 <0.01 <0.01 <br />Hexavalent Chromium 0.01 - 0.03 <0.05 <0.05 <br />Lead <0.02 <0.005 <0.05 <br />Mercury 0.001 - 0.003 <0.005 <0.005 <br />Nickel NA <0.01 0.061 <br />Selenium 0.02 <0.005 O.OI3 <br />Silver <0.01 <0.01 NA <br />Thallium NA <0.1 NA <br />Aluminum NA 0.55 0.59 <br />Iron NA <0.05 0.24 <br />Manganese NA <0.01 0.028 <br />Magnesium NA <0.01 <0.01 <br />Calcium NA 264 251 <br />Sodiyim NA NA 195 <br />pH NA 12.77 12.5 / 12.7 <br />Conductivity NA 14,700 10,600 / 12,300 <br />Sulfate NA 6,300 3,800 <br />Chloride NA NA 77.2 <br />KS-9903-02 Page 7 K-S &Comprny <br />August 16, 1999 Copyright 1999 <br />