Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:10:p3
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 10 (pt 3/15)
Character Range: 680077–682923

zone during the reporting year, measured in cubic metres in accordance with Division 2.3.6.
Qflared is the quantity of methane in landfill gas flared from the landfill during the year, measured in cubic metres in accordance with Division 2.3.6.
Qflaredz is the quantity of methane in landfill gas flared by the landfill from a sub‑facility zone during the reporting year, measured in cubic metres in accordance with Division 2.3.6.
Qtr is the quantity of methane in landfill gas transferred out of the landfill during the year, measured in cubic metres in accordance with Division 2.3.6.
Qtrz is the quantity of methane in landfill gas transferred out of the landfill from a sub‑facility zone during the reporting year, measured in cubic metres in accordance with Division 2.3.6.
 (5) For subsection (1), if the result of the first equation in subsection (4) is, for the reporting year for which the result is calculated (the current reporting year), greater than the collection efficiency limit for the landfill calculated in accordance with section 5.15C:
 (a) the change in the quantity of the opening stock of decomposable degradable organic carbon (∆Cost) must be calculated using the equation mentioned in section 5.15A; and
 (b) the quantity of the closing stock of decomposable degradable organic carbon (∆Ccst) must be calculated using the equation mentioned in section 5.15B.
 (6) This method may be used only if specific information is available on the waste mix types at the landfill.
Note 1: For the definition of reporting year, see the National Greenhouse and Energy Reporting Regulations 2008.
Note 2: For provisions regarding the selection and requirements of representative zones, see sections 5.16 to 5.17I.
Note 3: Section 5.17AA sets out, for a landfill operator using method 2 in Division 5.2.3 or method 3 in Division 5.2.4, the number of sub‑facility zones that the landfill operator may select and the requirements for sub‑facility zones that the landfill operator must comply with.

5.15A  Equation—change in quantity of particular opening stock at landfill for calculating CH4gen
 (1) For paragraph 5.15(5)(a), this section applies if the result of the first equation in subsection 5.15(4) is, for the reporting year for which the result is calculated (the current reporting year), greater than the collection efficiency limit for the landfill calculated in accordance with section 5.15C.
 (2) The change in the quantity of the opening stock of decomposable degradable organic carbon (∆Cost) that is:
 (a) located in the landfill during the reporting year; and
 (b) measured in tonnes; and
 (c) lost through decomposition;
must be calculated using the equation mentioned in subsection (3).
 (3) For subsection (2), the equation is:

where:
t is the reporting year.
F is the fraction of methane generated in landfill gas