Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:10:p4
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 10 (pt 4/15)
Character Range: 682679–685490

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 estimated in accordance with section 5.14C.
Note 1: For the definition of reporting year, see the National Greenhouse and Energy Reporting Regulations 2008.
Note 2: If the result of the first equation in subsection 5.15(4):
(a) was, for a previous reporting year or years, greater than the collection efficiency limit for the landfill calculated in accordance with section 5.15C; and
(b) is, for the current reporting year, less than or equal to the collection efficiency limit for the landfill calculated in accordance with section 5.15C;
 use:
(c) the calculation in section 5.15A to calculate the change in the opening stock of carbon for the final reporting year in which the result of that equation is greater than the collection efficiency limit for the landfill calculated in accordance with section 5.15C; and
(d) the calculation in section 5.15B to calculate the closing stock for that reporting year.

5.15B  Equation—quantity of closing stock at landfill in particular reporting year
 (1) For paragraph 5.15(5)(b), 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 quantity of closing stock of decomposable degradable organic carbon (Ccst) in the most recent year to which subsection 5.15(4) applies:
 (a) located in the landfill during the reporting year; and
 (b) measured in tonnes;
must be calculated using the equation mentioned in subsection (3).
 (3) For subsection (2), the equation is:

where:
Ccst is the closing stock of carbon in the last year in which subsection 5.15(4) was used to calculate emissions.
Cost is the opening stock of carbon in the first year in which 5.15(4) was used to calculate emissions.
∆Cost is the change in carbon stock for all years in which 5.15(4) applies and is estimated in accordance with 5.15A
Note: The quantity of closing stock calculated in accordance with this section is the same as the quantity of opening stock for the current reporting year.

5.15C  Equation—collection efficiency limit at landfill in particular reporting year
 (1) Subject to subsection (3), the collection efficiency limit for a landfill is calculated using the following formula:

where:
A2 is the area of the landfill in square metres, regardless of cover type, without active gas collection.
A3 is the area of the landfill in square metres that has daily soil cover and active gas collection.