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Composting Regulations - Title 14 CCR, Divsion 7, Chapter 3.1 Page 6 of 11 <br /> Authority cited: <br /> Sections 40502, 43020, and 43021 of the Public Resources Code. <br /> Reference: <br /> Sections 43020 and 43021 of the Public Resources Code. <br /> Section 17868.2. Maximum Metal Concentrations. <br /> (a) Compost products derived from compostable materials that contains any metal in amounts that exceed <br /> the maximum acceptable metal concentrations shown in Table 2 shall be designated for disposal, additional <br /> processing, or other use as approved by state or federal agencies having appropriate jurisdiction. <br /> Table 2 <br /> Maximum Acceptable Metal Concentrations <br /> Constituent Concentration (mg/kg) <br /> on dry weight basis <br /> Arsenic (As) 41 <br /> Cadmium (Cd) 39 <br /> Chromium (Cr) 1200 <br /> Copper (Cu) 1500 <br /> Lead (Pb) 300 <br /> Mercury (Hg) 17 <br /> Nickel (Ni) 420 <br /> Selenium (Se) 36 <br /> Zinc (Zn) 2800 <br /> (b) Alternative methods of compliance to meet the requirements of Subdivision (a) of this section, including <br /> but not limited to sampling frequencies, may be approved by the EA for green and food materials composting <br /> operations and facilities if the EA determines that the alternative method will ensure that the maximum <br /> acceptable metal concentrations shown in Table 2 are not exceeded. <br /> Note: <br /> Authority cited. <br /> Sections 40502, 43020, and 43021 of the Public Resources Code. <br /> Reference: <br /> Sections 43020 and 43021 of the Public Resources Code. <br /> Section 17868.3. Pathogen Reduction. <br /> (a) Compost products derived from compostable materials, that contains pathogens in amounts that exceed <br /> http://www.ciwmb.ca.gov/Regulations/Title 14/ch31 a5.htm 3/23/2006 <br />