Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:10:p12
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 10 (pt 12/15)
Character Range: 703182–705893

table in subsection 5.14(6); and
 (b) worked out by performing the steps set out in subsection (2).
Qz means the gas flow rate for the representative zone.
CH4gen is the quantity of methane generated by the landfill as calculated under this section and measured in CO2‑e tonnes.
 (2) For subsection (1), the steps are.
Step 1  Identify the total amount of methane:
         (a) estimated in accordance with section 5.17D; and
         (b) collected at the gas collection wells in the representative zone.
Step 2  Identify the total amount of methane generated by the representative zone:
         (a) measured in accordance with section 5.17H; and
         (b) converted in accordance with subsection 5.17H(5).
Step 3  Identify Qz by adding the amount identified under step 1 to the amount identified under step 2.
Step 4  Calculate CH4gen to within ± 0.001 of Qz, using the amount identified under step 3 and the equation mentioned in section 5.4D, by adjusting incrementally each default methane generation constant for each of those waste mix types using the following formula:

        kiadj = kidef  (1 + incr%)

        where:
        kiadj is the adjusted methane generation constant for each waste mix type mentioned in column 3 of the table in subsection 5.14(6).
        kidef is the default methane generation constant for each waste mix type mentioned in column 3 of the table in subsection 5.14(6).
        incr% is the incremental percentage (≤ 1%).

 (3) For subsection (1):
 (a) CH4gen for each representative zone must be worked out:
 (i) using the estimates mentioned in section 5.4A and the equations mentioned in sections 5.4B, 5.4C and 5.4D; and
 (ii) for each waste mix type mentioned in column 3 of the table in subsection 5.14(6)—using the formula for calculating kiadj and the method of working out ki in this section; and
 (b) it is sufficient if CH4gen is within ± 0.001 of Qz.
 (4) Subsection (6) applies if:
 (a) in the previous reporting year, a methane generation constant for each waste mix type mentioned in column 3 of a table in section 5.14 is selected from one of those tables for the purpose of estimating methane emissions from the solid waste located in a sub‑facility zone; and
 (b) ki is worked out before 1 October 2013 for each waste mix type mentioned in column 3 of the table in subsection 5.14(6).
 (5) However, subsection (6) does not apply to solid waste of a waste mix type mentioned in column 3 of the table in subsection 5.14(6) if:
 (a) the waste has been deposited in a sub‑facility zone; and
 (b) a methane generation constant for the solid waste has been:
 (i) estimated under method 2; and
 (ii) used in the previous reporting year.
 (6) For each waste