When I headed Watercare we looked at all the options to completing the interceptor as originally designed. There were none that made any sense. It was simply waste to contest it further. Compost and Bio-Solids One of the surprises of living in Brisbane was how different gardening is there. Very little gardening with annuals is done.
Most landscaping is with shrubs and groundcover.
Our strategy for biosolids disposal there found little opportunity for beneficial reuse. Some of the areas surrounding Brisbane had taken up the opportunity and largely satisfied the overall market that way. The Council did some greenwaste composting but could not deal with all the potential stream for the lack of markets. The immediate future for Auckland sewage sludge disposal is to landfills but there has to be an opportunity for more than that here. It seems that the credible private sector partners are there and sewerage plant owners who have a need, eventually, for more disposal outlets than they currently have.