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MONITORING AND REPORTING PROGRAM <br /> CITY OF MANTECA <br /> SLUDGE APPLICATION TO LAND <br /> SAN JOAQUIN COUNTY -2- <br /> 7. Verification that the application of sludge will not exceed the maximum <br /> soluble metal concentrations (mg/1 ) to protect ground water (to prevent <br /> metals from leaching to ground water) . <br /> POST-APPLICATION REPORT <br /> A post-application report shall be submitted annually after sludge <br /> applications are completed. The report shall include: <br /> 1. Total dry weight, and dry weight per- acre, of sludge applied to each <br /> field. <br /> 2. Field numbers on which sludge was applied, as delineated in Attachment <br /> B. <br /> 3. Tons of wet sludge per acre and tons of dry sludge per acre applied. <br /> 4. Pounds per acre of metals and plant nutrients applied to each field <br /> receiving sludge, including sludge, wastewater, and fertilizer sources. <br /> 5. Sludge/Soil Mixture Monitoring. A representative composite sample of <br /> sludge/soil mixture from each field that received sludge during the <br /> year, after sludge application is completed, shall be analyzed for <br /> electrical conductivity and pH, and tested for soluble metals (cadmium, <br /> copper, lead, nickel , and zinc, all in mg/1) using the Waste Extraction <br /> Test (WET) described in the California Code of Regulations (CCR) Title <br /> 22, Division 4, Chapter 30 using distilled water to extract. Include a <br /> verification that the sludge/soil mixture has not exceeded the maximum <br /> soluble metal concentration (mg/1) to protect ground water. <br /> 6. Any variations from the pre-application report. <br /> SOIL SAMPLING <br /> The soil and soil/sludge mixture sampling required for the Pre-Application and <br /> Post-Application monitoring shall be performed as follows: <br /> 1. For soil sampling, fields that have received sludge in the fall shall be <br /> sampled the following January or February. Each field shall be divided <br /> into four approximately equal parts. Each part shall then be sampled in <br /> 6-10 widely dispersed locations. At each location, cores from 0 to 18 <br /> inches and from 18-33 inches in depth shall be obtained. Samples from <br /> each of the up to 40 locations will be mixed to represent the 0- to 18- <br /> inch and the 18- to 33-inch layers for the entire field. Thus, two <br /> samples are analyzed from each field for the parameters specified. <br />