Document ID: chunk:federal_register_of_legislation:F2021C00494:clause:1_4
Version: federal_register_of_legislation:F2021C00494
Segment Type: clause
Provision Reference: sch 1 cl 4
Character Range: 59635–61021

4  Annual amount of methane permitted to be emitted from final and intermediate cover
 (1) The annual amount of methane that is permitted to be emitted from the final and intermediate cover of the landfill, in tonnes CO2‑e, is worked using the formula (equation 22):
where:
MReg,FI means the annual amount of methane that is permitted to be emitted from the final and intermediate cover of the landfill, in tonnes CO2‑e.
OF means the oxidation factor for near surface methane in landfill set out in the definition of OF in subsection 5.4(1) of the NGER (Measurement) Determination.
GWPCH4 means the global warming potential value for methane set out in regulation 2.02 of the NGER (Measurement) Determination.
Sx means the area of the landfill that is cover type x, in square metres.
Cx means the permitted methane flux rate for the landfill for cover type x, in tonnes of methane per square metre per hour, set out the applicable table in subsection (2) or (3).
x means the type of landfill cover, being either final cover or intermediate cover.
 (2) The following table sets out permitted methane flux rates for final cover.

Permitted methane flux rates for final cover (Cx)
Item                                               State or Territory            Methane concentration limit (CH4 ppm)  Permitted methane flux rate estimated from the methane concentration limit (tCH4/m2/hr)