Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:22:p21
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 22 (pt 21/29)
Character Range: 285388–288083

under subsection 3.19 (6).
 (2) For ∑Qij,cap,z, ∑Qij,flared,z and ∑Qijtr in subsection (1), the quantity of gas type (j) must be estimated in accordance with Division 2.3.6 as if a reference in that Division to quantities of gaseous fuels combusted from the operation of a facility was a reference to the following:
 (a) for ∑Qij,cap,z—quantities of gaseous fuels captured from the operation of a facility;
 (b) for ∑tQij,flared,z—quantities of gaseous fuels flared from the operation of a facility;
 (c) for ∑Qijtr—quantities of gaseous fuels transferred out of the operation of a facility.
 (3) In subsection (1), ∑Qijtr applies to carbon dioxide only if the carbon dioxide is captured for permanent storage.
Note: Division 1.2.3 contains a number of requirements in relation to deductions of carbon dioxide captured for permanent storage.
 (4) For GCjz in subsection (1), the content of gas type (j) contained by the gas bearing strata (z) must be estimated in accordance with sections 3.24, 3.25, 3.25A and 3.25B.

3.23  Estimate of proportion of gas content released below pit floor
  For paragraph (b) of the factor βz in subsection 3.22(1), estimate βz using one of the following equations:
 (a) equation 1:

  ;

 (b) equation 2:

  .

where:
x is the depth in metres of the floor of the gas bearing strata (z) measured from ground level.
h is the depth in metres of the pit floor of the mine measured from ground level.
dh is 20, being representative of the depth in metres of the gas bearing strata below the pit floor that releases gas.

3.24  General requirements for sampling
 (1) Core samples of a gas bearing strata must be collected to produce estimates of gas content that are representative of the gas bearing strata in the extraction area of the mine during the year.
 (2) The sampling process must also be free of bias so that any estimates are neither over nor under estimates of the true value.
 (3) Bias must be tested in accordance with an appropriate standard (if any).
 (4) The value obtained from the samples must only be used for the open cut mine from which it was intended to be representative.
 (5) Sampling must be carried out in accordance with:
 (a) the minimum requirements for data collection and gas testing mentioned in section 2 of the ACARP Guidelines; and
 (b) the data validation, analysis and interpretation processes mentioned in section 3 of the ACARP Guidelines.

3.25  General requirements for analysis of gas and gas bearing strata
  Analysis of a gas and a gas bearing strata, including the mass and gas content of the strata, must be done in accordance with:
 (a) the minimum requirements for data collection and gas testing mentioned in section