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Sampling. Forward will analyze at least one composite sample for every 5,000 cubic <br /> yards of compost. Compost product, which exceeds the maximum metal concentrations or <br /> maximum acceptable pathogen concentrations shall be designated by the appropriate state or <br /> federal jurisdiction for another use, including disposal, additional processing, or other use. <br /> A composite sample will consist of twelve (12) mixed samples. The twelve samples will <br /> be of equal volume. Four samples will be extracted at each of three different locations <br /> within the compost pile as follows: <br /> ® One-half the horizontal width of the pile <br /> • One-fourth the horizontal width of the pile <br /> • One-eight the horizontal width of the pile <br /> Metal Concentrations. The maximum acceptable metal concentrations are presented in <br /> Table 2.3. Tests for metal concentration will be conducted at a certified lab. <br /> Table 2.3 <br /> Maximum Acceptable Metal Concentrations <br /> Concentration (mg/kg) <br /> Constituent on Dry-Weight Basis <br /> Arsenic (As) 41 <br /> Cadmium (Cd) 39 <br /> Chromium (Cr) 1,200 <br /> Copper (Cu) 1,500 <br /> Lead (Pb) 300 <br /> Mercury (Hg) 17 <br /> Nickel (Ni) 420 <br /> Selenium (Se) 36 <br /> Zinc (Zn) 2,800 <br /> Pathogen Reduction. The density of fecal coliform in the stabilized compost will be less <br /> than 1,000 most probable number (MPN) per gram of total solids on a dry weight basis, or <br /> the density of salmonella bacteria in the stabilized compost will be less than 3 WN per <br /> 4 grams of total solids on a dry weight basis. Compost facilities shall be operated at the <br /> minimum temperature and process time requirements presented in Table 2.4. <br /> ®ea10029B64.wp5/43 <br /> 9/28/94 43 <br />