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CITY OF TRACY <br /> Table 8 <br /> Preapplication Report : 93-94 <br /> Approximate Site Lifetimes Based on Cumulative Loading and on <br /> Background Soil Concentrations and Soil D.I. Extract Limitations <br /> Site Life Based on Soil D.I. <br /> Limitation Extract Limitation and Range <br /> Cumulative on D.I.Extract Site life based of Reported Buffer Powers <br /> Laadu�g of We Soil/ on lifetime Maximum Minimum <br /> Limi[ <br /> Sludge Mixture loading limits Buffer Power I Buffer Power <br /> Constituent (Ib/acre) (mg/1) (Years) (Years) (years) <br /> Cadmium 17.8 0.1 1695 8930796 1662714 <br /> Copper 446 20 410 550873 183614 <br /> Lead 714 0.5 2181 1701023 3658 <br /> Nickel 179 0.134 798 765835 1614 <br /> Zinc 893 200 151 1749457 87470 <br /> Telephone 209/836-1650 3900 Holly Drive Tracy, California 95376 <br />