Water Leakage - Feeble Targets, Feeble Action

I recently came across this article on water leakage from Edie. I have to say I find it pretty damning. I already knew that total leakage is colossal, especially from my provider Thames Water. What I hadn't realised was how feeble are the leakage targets imposed by Ofwat. On their web-site there are some catch all words about "encouraging a reduction in environmental impact from over-abstraction" but it all seems rather limp-wristed.