Not suggesting all aren't connected. "Section 8" of the Macintyre wind farm is the first one which has decommissioning I have found so thank you.
https://proaccionaau.blob.core.wind...macintyre-wind-farm-precinct-sia_v3-2-web.pdf
The document linked also states a few bits which are impossible! No impact on the farming (agricultural land )
"As such, the operational phase of the project, it is unlikely that turbines will impact the productivity of the agricultural land on which they are located (Walker & Swift 2015)."
" 8.3.3 Livelihood related to agriculture – unmitigated....Various construction impacts (such as noise, traffic, vibration, and land use)
will likely affect landholders’ ability to use certain areas for agricultural purposes, including potential decreases in productivity and issues with livestock management."
Current farmers may be happy" regular income from turbine lease payments providing financial security for their businesses"
2.7 Decommissioning
The wind turbines and associated infrastructure is expected to have an operating life of 30+ years with the operation
facilitated by lease agreements between ACCIONA, CleanCo, and individual landowners.
At the end of the lease agreement period the Project could undergo either:
• refurbishment of existing infrastructure to prolong turbine life (subject to agreements and approvals);
• a program to replace turbine infrastructure on an as-needed basis (subject to agreements and approvals); or
• decommissioning and site rehabilitation.
The priority would be to keep the wind farm operating if they are financially viable and in good working order, in
accordance with current industry practices. It is important to note that no wind farm has been decommissioned in
Australian to date.
"However, should the decision be made to withdraw from one or more leases, the site would need to be
decommissioned in accordance with the conditions of approval which would be done in consultation with
landholders. Decommissioning means that the wind turbines, site office and any other ancillary infrastructure is
removed from the site, and roads
and foundation pads are covered and revegetated, allowing land to be returned to its former use"
Covering 70 tones of the concrete foundation pads is what I thought will happen!! There are clearly permeant impacts on the water table and profile of all land which is not covered or discussed.
No bond or fund for decommissioning costs which makes this a direct risk for taxpayers to pay for decommissioning. 
