Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:2:p2
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 2 (pt 2/12)
Character Range: 713992–716762

is the oxidation factor (0.1) for near surface methane in the landfill.
 (2) Work out the ratio of methane generated by legacy waste deposited in a sub‑facility zone to methane generated by all waste deposited in a sub‑facility zone using the default ratio mentioned in subsection (3) or the method described in subsection (4).

Default ratios
 (3) The default ratio of methane generated by landfill legacy waste deposited in a sub‑facility zone to methane generated by all waste deposited in a sub‑facility zone is:
 (a) if all of the waste in the sub‑facility zone is legacy waste—1; or
 (b) if none of the waste in the sub‑facility zone is legacy waste—0.

Method of working out ratio
 (4) Work out the ratio of methane generated by legacy waste deposited in a sub‑facility zone to methane generated by all waste deposited in a sub‑facility zone using the following formula:
where:
Lrz is the ratio of methane generated by legacy waste deposited in a sub‑facility zone to methane generated by all waste deposited in a sub‑facility zone.
CH4genlwz is the quantity of methane generated from legacy waste in a sub‑facility zone, measured in CO2‑e tonnes.
CH4genz is the methane generated from total waste deposited in a sub‑facility zone, measured in CO2‑e tonnes.

5.22C  How to estimate quantity of methane captured for combustion from legacy waste for each sub‑facility zone
  The quantity of methane captured for combustion from legacy waste during the reporting year for each sub‑facility zone must be estimated using the following formula:
where:
Qcaplw z is the quantity of methane captured for combustion from landfill legacy waste in each sub‑facility zone during a reporting year.
Qcap z is the total quantity of methane in landfill gas captured for combustion from the sub‑facility zone during the reporting year, measured in cubic metres in accordance with Division 2.3.6.
Lrz is the ratio of methane generated by legacy waste deposited in a sub‑facility zone to methane generated by all waste deposited in a sub‑facility zone.

5.22D  How to estimate quantity of methane in landfill gas flared from legacy waste in a sub‑facility zone
  The quantity of methane in landfill gas flared from landfill legacy waste during the reporting year for each sub‑facility zone must be estimated using the following formula:
where:
Qfllw z is the estimated quantity of methane in landfill gas flared from landfill legacy waste during the reporting year for each sub‑facility zone.
Qfl z is the total quantity of methane in landfill gas flared from the sub‑facility zone during the reporting year, measured in cubic metres in accordance with Division 2.3.6.
Lrz is the ratio of methane generated by legacy waste deposited in a sub‑facility zone to methane generated by all