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M • • April 4, 2003 Version 1 (A) Due to variations among enclosed and within-vessel composting system designs, including 2 tunnels, the operator shall submit a system-specific temperature monitoring plan with the permit 3 application to meet the requirements of Subdivision (b)(2) of this Section. 4 (3) t"`e oper hon or facility uses-a windrow comp so hn cp ess,active compost shall be' 5 maintained under aerobic conditions at a temperature of 55 degrees Celsius (131 degrees 6 Fahrenheit) or higher for a pathogen reduction period of 15 days or longer. During the period 7 when the compost is maintained at 55 degrees Celsius or higher, there shall be a minimum of five 8 5 turruY-s of the windrow. 9 (4) If the operation or aci ity uses an aerated static pile composting process, all active compost 10 shall be covered with 6 to 12 inches of insulating material, and the active compost shall be 11 maintained at a temperature of 55 degrees Celsius (131 degrees Fahrenheit) or higher for a 12 pathogen reduction period of 3 days. 13 (c) Alternative methods of compliance to meet the requirements of Subdivision(b) of this Section 14 may be approved by the EA if the EA determines that the alternative method will provide 15 equivalent pathogen reduction. 16 (d) Compost operations and facilities shall be monitored as follows to ensure that the standards in 17 Subdivision(b) of this Section are met: 18 (1) Each day during the pathogen reduction period, at least one temperature reading shall be taken 19 per every 150 feet of windrow, or fraction thereof, or for every 200 cubic-yards of active compost, 20 or fraction thereof. 21 (2) Temperature measurements for pathogen reduction shall be measured as follows: 22 (A) Windrow composting processes and agitated bays shall be monitored twelve(12) to twenty- 23 four(24) inches below the pile surface; 24 (B) Aerated static pile composting processes shall be monitored twelve (12) to eighteen(18) 25 inches from the point where the insulation cover meets the active compost. 26 27 NOTE: Authority cited: Sections 40502, 43020, and 43021 of the Public Resources Code. 28 Reference: Sections 43020 and 43021 of the Public Resources Code. 29 30 Section 17868.5. Green Material Processing Requirements. 31 32 In order for a feedstock to be considered green material, as defined in Section 17852(a)(21), the 33 following requirements shall be met: 34 (a) The feedstock shall undergo load checking to ensure that physical contaminants are no 35 greater than 1.0 percent of total weight. Load checking shall include both visual observation of 36 incoming waste loads and load sorting to quantify percentage of contaminating materials. 37 (1) A minimum of one percent of daily incoming feedstock volume or at least one truck per 38 day, whichever is greater, shall be inspected visually. If a visual load check indicates a 39 contamination level greater than 1.0 percent, a representative sample shall be taken,physical 40 contaminants shall be collected and weighed, and the percentage of physical contaminants 41 determined. The load shall be rejected if physical contaminants are greater than 1.0 percent of 42 total weight. 43 (b)Upon request of the EA, the operator shall take a representative sample of feedstock, 44 physical contaminants shall be collected and weighed, and the percentage of physical 45 contaminants determined. 17