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Forward RRF SWT Engineering <br />Z:\PROJECTS\Allied Waste\Forward\Resource Recovery Facility\5 Yr Permit Rvw 2019-2020\RCSI 2019\Tables\Table 3 - Max Accept <br />Metal Con.doc <br /> <br />TABLE 3 <br />FORWARD COMPOSTING FACILITY <br />MAXIMUM ACCEPTABLE METAL CONCENTRATIONS <br /> <br /> <br />Constituent Concentration (mg/kg) <br />on Dry-Weight Basis <br />Arsenic (As) 41 <br />Cadmium (Cd) 39 <br />Chromium (Cr) <br />No Maximum <br />Acceptable <br />Concentration (1) <br />Copper (Cu) 1,500 <br />Lead (Pb) 300 <br />Mercury (Hg) 17 <br />Nickel (Ni) 420 <br />Selenium (Se) 100 <br />Zinc (Zn) 2,800 <br /> <br />Reference: 14 CCR, Section 17868.2 (Maximum Metal Concentrations) <br /> <br />(1) Although there is no maximum acceptable metal concentration for chromium in compost, <br />operators subject to subdivision (a) shall arrange for concentrations of chromium in compost <br />they produce to be determined in connection with the analysis of other metals. Operators <br />shall maintain records of all chromium concentrations together with their records of other <br />metal concentrations.