• For Scope 1 and 2 emissions, the geographical boundary includes the footprint of the Project,
construction material sources that are on-site, and directly related haul roads. All other related
activities that are outside this area have been considered to fall under Scope 3 emissions.
The maximum annual emissions (Scope 1 and Scope 2) for the Project were calculated as 9,947 tonnes
of CO 2 -e. In accordance with DETSI guidelines this application falls under the category of low emitter
being less than 25,000 tonnes CO 2 -e per year. As specified in Table 3 of the Greenhouse Gas Emissions
Guidelines (DETSI, 2025) , Scope 3 emissions are not required to be assessed for low emitters.
The Scope 1 and 2 emission sources for each phase of the Project are shown in Table 54.
Table 54. GHG Emission Inventory
Phase
Scope 1
Scope 2
Vegetation Clearing
• •
Construction
Fuel combustion from earthmoving equipment (dozers, graders, haul trucks, excavators)
Electricity for pump used for dewatering
•
(2028)
Fuel for light vehicles
•
Electricity for water plant discharge pump systems, return to water plant pump systems, and OCP to UMG pump systems
•
Operation
Fuel combustion in light vehicles for inspections and maintenance Fuel use in emergency generators
•
(2029-2033)
•
Closure and
Fuel combustion from earthmoving equipment (dozers, graders, haul trucks, excavators)
•
Rehabilitation
None
•
(2034)
Fuel in light vehicles
•
6.11.2. Impact Assessment
A summary of all estimated GHG emissions by year is provided in Table 55. The Project is estimated to
generate 11,614 t CO 2 -e of GHG emissions (Scope 1 and 2) across its 7-year life. The maximum annual
emissions for the Project are estimated as 9,947 t of CO 2 -e, occurring in 2028 during construction. This
year accounts for 86% of total Project emissions, with drastic reductions in emissions during operation
and closure, as shown in Figure 51. Furthermore, vegetation clearing is the largest source of Project
emissions, accounting for 66% of total emissions.
191
Wulguru Technical Services Pty Ltd – Supporting Information to Amend an Environmental Authority
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