What are the water management ideas proposed by the director of the water department who made his debut?

At the press conference of the Ministry of Ecology and Environment, a new face caught everyone's attention:

At the press conference, Huang Xiaoyuan comprehensively reviewed the progress and effectiveness of water ecological environment protection work, and proposed the next step of water management roadmap. It may sound easy to reduce the proportion of Class V water quality sections in national surface water by 0.5 percentage points, but what if the base is only 1.2 percentage points?