I agree with what you said previously:
I do think it is appalling that landowners are solely responsible for the cost of removing illegal waste dumped on their land. It costs some landowners thousands of pounds a year. We need better ways to deal with waste to prevent it happening in the first place and stronger penalties to discourage the criminals that do this. The EA is a useless organisation.
Between councils, the environment agency and police it is apparent both in this case, the Oxford case, the site at Basser Wood in Kent that I posted about earlier, and no doubt other illegal dumps in other parts of the country locals are quick to report the dumping and authorities are slow to do anything about it, including closing off access to the dump sites to prevent further illegal dumping.
I don't know the back history of how the law came to be that landowners were responsible for clear ups but I imagine that when that went on the statute book they were talking about the odd bag of domestic waste or the occasional mattress. Not tens or even hundreds of tons of potentially toxic waste. It is time government took the problem seriously and gave the authorities the power and indeed the responsibility to take rapid action to close off sites, identify the criminals, confiscate lorries bringing the waste and prosecute with significant penalties.
It's really quite ridiculous to blame The King for the situation on a small area of land that has accidentally come under the ownership of the Duchy. In any case he/the Duchy can't just steam in to clear the waste on his 30% of the land as it will need to be a joint project with the Council who seem to be dragging their heels so far.