Statutory Definition in Waste Collection

I commented before on the proposed changes to waste collection in Brent, and how there a number of questions I thought should be put in the public domain, particularly on climate change and the effect on the West London Waste Authority (WLWA).  One suggestion in the blogosphere is about the proposed charge for green waste. 

Someone has suggested charging for landfill, but not for green waste.  In fact, this is not possible as landfill collections really are covered by your Council Tax.  They are a statutory duty of Brent Council, and cannot be subject to a separate charge.  Garden waste, on the other hand, can, or indeed not collected at all.  In other words, this is an example of the "graph of doom" coming into play.  Councils are being forced to strip back "free services" to the statutory minimum, and charge for the rest by Eric Pickles systematically destroying local government funding.