Good on you for being prepared to put your money where your mouth is. Your $1 contribution would go some way but not a long way
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I would not have the slightest clue. Fartherist away area of expertise i could imagine. There are experts for that sort of thing to work out a royalty for the use of water. maybe that makes it easier too. For the "use" of water not for the water .:sleep:
for a start it should be water that hits the ground from the irrigator - because that is the stuff that will eventually flow into poluted river.
It cant include the water that leaves the pivot sprinkler as some will be lost to evapouration before hitting the ground.
They have to measure their consumption now in Canterbury anyway. otherwise how do you check they are not exceeding their allocation?
Farmers are all honest of course but I am old enough to remember a sheep retention scheme where NZ s flock increased massively overnight.
westerly
Easy
Individual region pollution remediation cost / litres irrigated in the region X litres irrigated on the individual farm = individual farm irrigation tax. Spread tax bill equally over a number of years eg 20 years. The tax is levied on the farm, not the owner
But should also apply to non-irrigated farms because they are also very polluting
In non-irrigated areas it should be ratio'ed on head count and animal type
And all industries should make a contribution as well, based on effluent BOD or COD, suspended solids, toxic trace metals