ARCHIVED REPORTS_[REV] MAY & JULY 2014 RCSI

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3-12 Forward Composting Facility SWT Engineering Report of Composting Site Information - MayJuly 2014 z:\projects\allied waste\forward\resource recovery facility\5 yr permit rvw 2013-14\rcsi 2014\text\revision track_july 2014\sec 3_revtr.doc 3.5.5 End Product Forward follows a process to ensure that the compost end product is innocuous and free of sharp edges and particles that have the potential to be harmful to human health and safety. The quality of the end product will depend on the product's use. The highest quality end product would be used as top soil amendment. Forward follows the sampling and analysis requirements, as discussed in previous sections, to ensure that all compost products meet regulatory requirements for the protection of human health and safety. All products are screened and free of sharp-edged particles. 3.5.6 Environmental Health Standards Forward follows processes to ensure that compost end products meet environmental health standards for maximum metal concentrations and pathogen reduction. One sample per 5,000 yards of finished compost is analyzed at a Department of Health Services Approved Laboratory, in accordance with 17868.1(a)(3). Samples are analyzed for the constituents required pursuant to 14 CCR, Section 17861.1. Compost product which exceeds the maximum metal concentrations or maximum acceptable pathogen concentrations shall be designated by the appropriate State or Federal jurisdiction for another use, including disposal, additional processing, or other use. The maximum acceptable metal concentrations are presented in Table 3. All tests for metal concentrations are conducted at a certified lab. The density of fecal coliform in the stabilized compost is less than 1,000 Most Probable Number (MPN) per gram of total solids on a dry weight basis, or the density of Salmonella bacteria in the stabilized compost is less than 3 MPN per 4 grams of total solids on a dry weight basis. Active compost containing biosolids waste are operated at the minimum temperature and process time requirements presented in Table 4. 3.5.7 Compliance Monitoring Program Forward follows a compliance monitoring program as required by 14 CCR, Section 17868.1 for biosolids composting facilities, as discussed in Section 2.2. and mixed solid waste composting facilities. Biosolids. Active compost containing biosolids are monitored for metals, pathogen density, and active compost temperature at the frequency listed in Table 5. To meet the requirements of 14 CCR, Section 17868.1, at least one composite sample is analyzed for every 5,000 cubic yards of compost produced. A composite sample consists of twelve mixed samples of equal volume. Four samples will be extracted from within the compost pile, each at a different cross- section as follows: ♦ One-half the horizontal width of the pile ♦ One-fourth the horizontal width of the pile ♦ One-eighth the horizontal width of the pile At least one temperature reading is taken daily per either 150 feet of Windrow, or fraction