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INTY OF TRAMP <br /> soil due to sludge application is to a large extent balanced by plant uptake and soil <br /> sorption. <br /> Verification that Maxiumum Soluble Metal Concentrations for Soil Will not be Exceeded <br /> (7) <br /> Limitations to soluble metal concentrations in the soil could influence potential site life. <br /> This was previously determined by life loading limits for each of the metals, so that the <br /> site life was calculated directly from the metals content of the sludge. The objective of <br /> these standards is to keep the metals concentration in the soil from reaching levels that <br /> could lead to contamination of groundwater. If greater dilution could be demonstrated, <br /> then these standards should be flexible according to the RWQCB. <br /> Tables 7 and 8 were developed by our consultant and roughly predict ranges of site lifes <br /> based on(1) background levels of heavy metals at K&L Farms, and(2) reported ranges <br /> of soil properties for each metal. Based on these rough estimates, it appears that the site <br /> life will not be shortened by the soluble metals limits in our permit. <br /> Monitoring data, to date, has not shown that any single application of sludge has caused <br /> soluble metals levels to exceed the specified limits. <br /> 3 <br /> Telephone 209/836-1650 3900 Holly Drive Tracy. California 95376 <br />