Since its creation, the website has launched a number of sewage treatment plant-related data services. Each sewage treatment plant project from the government planning or approval of the project began to build a file tracking, in-depth excavation of the feasibility study, environmental assessment, survey, design, construction and other stages of progress, until the end of the completion of the commissioning.　　With the advent of the big data era and the overwhelming amount of data in every field, the simplest and most efficient way to get the data they need has become more and more popular with users' attention and expectations. In order to meet the different needs of the sewage industry chain of different business scope of enterprises on the sewage project data, to help users with a simple and efficient way to get the content they need, in May 2013, China's wastewater engineering network launched a new data service system for each user to provide exclusive data customization services and data to provide solutions. Sewage treatment wind vane is a third-party statistical data, the main content of the country's latest proposed sewage treatment plant construction progress. The data mainly comes from the project database of China Sewage Engineering Network, which presents the progress of the construction of sewage treatment facilities in various cities and towns through charts and graphs to help environmental protection departments, research institutions, environmental protection enterprises and environmental protection people to understand the situation of the construction of China's sewage treatment facilities.