The Land Air Water Aotearoa, or LAWA, website is a collaboration of 16 councils, the Ministry for the Environment and Cawthron Institute scientists.
Regional councils collect water samples from more than 1100 sites, the data is analysed, independently verified and uploaded online.
So why aren't they waiting for this to be included in National's regular environmental reporting? Possibly they've figured out that Ministerial control means that reporting can't be trusted...
The website is here.