What happens with asbestos contaminated cable from the NBN project? Exposure to asbestos will not stop with the workers and neighbors. The project planning stage of the NBN should have identified that the cable will be potentially contaminated.
Put 2+2 together. What happens when you drag cables through asbestos ducts and pits? It is logical that the duct and pit surfaces will be abraded and the cable will be contaminated. Where is this mountain of cable going to go?
Copper is valuable currently being about $7,500 per tonne. Where-ever the cable goes will create further exposures; transport workers, recycling plant workers, neighbors of the recycling facility, subsequent occupants of the recycling facility, etc.
What recycling method will be used? It seems likely that the first step would be a cutting/granulating process. What happens when you cut asbestos contaminated cable into small pieces? The outcome can not be good. Is there any worse possible thing to do with asbestos than to put it through a grinder?
Who will get to recycle possibly thousands of tonnes of contaminated cable? Will it be exported to China or India?
These risks are supposed to be addressed at the planning stage. The safest decision without any doubt was not to disturb existing ducts and pits. And most importantly do not drag cables through the system and create this problem in the first place. The basic project planning is flawed.