Minister for the Environment David Parker says he will personally feel he has failed if the country's fresh water is not in a better state when he leaves politics than when he entered.
The comments were made on Friday during a keynote address to the New Zealand Planning Institute's annual conference, titled Weaving the Strands, held in Napier.
"By the time I finish politics, if I haven't helped get this problem under control, I'll personally feel that I've failed, so I am pretty determined to give it a push."
He said as a country New Zealand had been aware of the issues around increasing nutrient loads and sediment in waterways since 2004.
"And sadly, that's a decade and a half, since then, that things have been allowed to get a lot worse."
He said it was the birthright of every New Zealander to be able to go to their local swimming hole, put their head under the water and not get sick.