Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:10:p9
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 10 (pt 9/15)
Character Range: 695704–698410

parts per million.

5.17G  Installation of flux boxes in representative zone
 (1) After the walkover survey has been completed, the operator of the landfill must arrange for the installation of flux boxes in the representative zone.
 (2) The number of flux boxes must be at least the minimum number identified during the walkover survey.
 (3) The flux boxes must be installed at the locations identified in the walkover survey.
 (4) If the operator installs the flux boxes, the operator must ensure that an independent expert certifies, in writing, that the boxes have been correctly installed and located.
 (5) If the operator arranges for some other person to install the flux boxes, the other person must be an independent expert.
 (6) If an independent expert identifies an area within a representative zone that has low methane emissions, the landfill operator must:
 (a) calculate the methane gas flow rate of the area by using a rate of 0.01g CH4 per square metre per hour; or
 (b) take all reasonable steps to ensure that the independent expert performs the calculation mentioned in paragraph (a).
 (7) If an independent expert identifies an area within a representative zone that has intermediate methane emissions, the landfill operator must:
 (a) calculate the methane gas flow rate of the area by using a rate of 0.12g CH4 per square metre per hour; or
 (b) take all reasonable steps to ensure that the independent expert performs the calculation mentioned in paragraph (a).
 (8) If an independent expert identifies an area within a representative zone that has elevated methane emissions, the landfill operator must:
 (a) calculate the methane gas flow rate for the area by using a rate of 4.3 g CH4 per square metre per hour; or
 (b) take all reasonable steps to ensure that the independent expert performs the calculation mentioned in paragraph (a); or
 (c) take all reasonable steps to ensure that the independent expert works out the minimum number of flux boxes for the area by using the following formula:

where:
Z is the size of the area within the representative zone that has elevated methane emissions, measured in square metres.
 (9) If an independent expert identifies an area within a representative zone that has high methane emissions, the landfill operator must:
 (a) calculate the methane gas flow rate of the area by using a rate of 75 g CH4 per square metre per hour; or
 (b) take all reasonable steps to ensure that the independent expert performs the calculation mentioned in paragraph (a); or
 (c) take all reasonable steps to ensure that the independent expert works out the minimum number of flux boxes for the area by using the following formula:

where:
Z is the