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The estimated assay of the CRF sludges, percent ms metal, is shorn in the <br />following table: <br />Cadmium 1.4 <br />(Chromium 2.8 <br />Copper 5.3 or 5.4 <br />Lead 0.4 or 0.5 <br />Nickel 3.6 or 3.9 <br />Zinc 1.6 to 1.9 <br />This estimated assay ignores the following constituents which may also be <br />present: sodium, potassium, calcium, magnesium, aluminum, iron, tin. fluoride, <br />chloride, nitrate, phosphate, sulfate, and sulfide. It will not be possible to <br />make an estimate of the -amounts of these constituents until late in the design <br />process. Even such an estimate should be verified by assays of the plant's <br />sludge after start-up and shakedown because not all of the minor constituents in <br />each bath of each shop will have been considered during design. <br />Sincerely. <br />Edward J . Con)ray, P. E . 0 <br />Senior Chem i al Engineer �' \ <br />EJC/bl <br />cc: project file 115.01 <br />Dan Shuster <br />