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r April 4, 2003 Version 1 (6) "Agricultural Material Composting Operation"means an operation that produces compost 2 from green or agricultural material additives, and/or amendments. 3 (7) "Amendments" means materials added to stabilized or cured compost to provide attributes for 4 certain compost products, such as product bulk, product nutrient value,product pH, and soils 5 blend. Amendments do not include septage,biosolids, or compost feedstock. 6 (8) "Anaerobic Decomposition" means the biological decomposition of organic substances in the 7 absence of oxygen. 8 (9) "Biosolids" means solid, semi-solid, or liquid residue generated during the treatment of 9 domestic sewage in a treatment works. Biosolids includes,but is not limited to,treated domestic 10 septage and scum or solids removed in primary, secondary, or advanced wastewater treatment 11 processes. Biosolids does not include ash generated during the firing of sewage sludge in a 12 sewage sludge incinerator or grit and screenings generated during the preliminary treatment of 13 domestic sewage in a treatment works. 14 (10) "Chipping and Grinding Operations and Facilities" means an operation or facility, that does 15 not produce compost, that mechanically reduces the size or otherwise engages in the handling, of 16 compostable material and: 17 (A) The site does the following: 18 1. The site handles only material, excluding manure, allowed at a green material composting 19 operation or facility as set forth in section 17852(a)(22); and, 20 2. Each load of green material is removed from the site within 48 hours of receipt. The EA 21 may allow a site to keep green material on-site-for up to 7 days if the EA determines that the 22 additional time does not increase the potential fpr violations of this Chapter. 23 (B) If the site fails to meet the definition of grgen material because it exceeds the contamination 24 limits in section 17852(a)(21), the site shall be regulated as set forth in the Transfer/Processing 25 Regulatory requirements (commencing at section 17400). 26 (C) If the site fails to meet the definition of this.section because the green material remains on- 27 site for a longer period of time than is allowed,then the site shall be regulated as a compostable 28 material handling operation or facility, as set forth in this Chapter. 29 (11) "Compostable Material"means any organic material that when accumulated will become 30 active compost as defined in Section 17852(a)(1). 31 (12) "Compostable Materials Handling Operation" or"Facility"means an operation or facility 32 that processes, transfers, or stores compostable materials. Handling of compostable materials 33 results in controlled biological decomposition. Handling includes composting, screening, 34 chipping and grinding, and storage activities related to the production of compost, compost 35 feedstocks, and chipped and ground materials. "Compostable Materials Handling Operation or 36 Facility"does not include activities excluded from regulation in Section 17855. "Compostable 37 Materials Handling Operation or Facility"also includes: 38 (A) agricultural material composting operations; 39 (B) green material composting operations and facilities; 40 (C) research composting operations; and, 41 (D) chipping and grinding operations and facilities. 42 (13) "Curing" means the final stage of the composting process that occurs after compost has 43 undergone pathogen reduction, as described in Section 17868.3, and after most of the readily 44 metabolized material has been decomposed and stabilized. 45 (14) "Domestic Sewage" means waste and wastewater from humans or household operations that 46 is discharged to or otherwise enters a treatment works. 47 (15) "Disposal"means: 48 (A) stockpiling of compostable organic material onto land for a combined period of time 49 greater than six months,or agricultural and green material for twelve months on prime 5o agricultural land as defined in Government Code section 51201,unless the RWQCB in 51 consultation with the EA makes a written finding that the material may remain within the 52 operations area for a period of time greater than specified. 2