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<br />Page 3 - #21961 <br />To detect the ammonia the method of Tetlow and Wilson (Analyst <br />1964, 89, 453) was used on the (neutralized) aliquot of the digested <br />sample. This is essentially the chemistry used in the EPA's <br />automated total kjeldahl nitrogen method. <br />Formaldehyde <br />The leachate was extracted with benzene, and the extract was placed <br />in a gas chromatograph. <br />Loss of ignition <br />The loss of ignition was determined by heating a sand sample to <br />900 degree C for three hours and weighing it before and after <br />heating. <br />TEST RESULTS <br />The test results are shown on the attached data sheet. It should <br />be noted that the concentration of phenol and cyanide were less than <br />detectable by the test procedures used. <br />I hereby certify that this plan. <br />specification, or report was prepared <br />by me or under my direct supervision <br />and that I am a duly Registered Pro- <br />fessional Engineer under the laws. of <br />the State of Minnesota. <br />DONOVAN K STORMOE <br />Date /p-/ ~~ ~~ Reg . No . 10493 <br />s~s~ ~x~io~~~~s~n <br />