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~ rear i7 •4~ o~:~-Fn <br />. .. -, <br /> <br />MEMORANDU <br />T0: Jim Pendleton, Ph.D. <br />FROM: Cliff Shutt <br />DATE: April 17, 1992 <br />SUBJECT: Chemical Analytical Matrix <br />I would like to confirm in writing what we discussed this morning dy telephone. <br />1. Vour suggestion of using ice to keep the samples at 5°C 's certainly <br />sound, however, with the two (2) days that it takes to get turn San Luis <br />to Denver by UPS, I am net sure that this would do an goad. To <br />compensate for potential volatization of HCN, we stabilize th Ph at +11,0 <br />and make a presumption, therefore, that alt cyanide is Ares nt as {CN}". <br />If you still prefer the use of ice, we shall, of course, oblige, <br />2. You referred to there being no description in the preViou memo about <br />procedures for well sampling. we are charged only ith cyanide <br />detoxification and I know that BMG is working with Harry on the well <br />sampling procedures. <br />3. Your request that a series of analyses be completed on the p nd so as to <br />give a three-dimensional picture of cyanide distributi n is well <br />understood. I shall be going to San Luis on Tuesday, A ril 2y to <br />complete such sampling. Rather than trying to discuss a sam ling matrix <br />here, not knowing what the conditions are going to be like, I hope that <br />you will agree that I can describe the matrix that was compl tad. <br />I shall take between 20 and 40 samples throughout the depth <br />pond, which is currently used as the tailings pond. <br />This sampling will be repeated, perhaps once every two (2) <br />decide on sampling frequency when you return to Denver. <br />Although we did not discuss this matter, T presume that the <br />presently have is satisfactory for the moment? <br />Regards - <br />``~~.~`~ <br />the lower <br />ks; we can <br />ix that you <br /> <br /> <br />C fi 5. rf <br />