California water prices have quadrupled
Why should other countries have all the fun with exploding prices for base resources, like heating in the UK, or all kinds of energy across Europe?
Nasdaq has an index for open-market wholesale prices for water in the US West, mostly California. Currently, it is in the order of a $1000 per acre-foot, while the non-drought price seems to be about $250.
Links: current prices, explanation.