Water is the most important material basis for the occurrence and existence of all life on earth. With the development of urbanization and the expansion of industrial and agricultural production specifications, a large amount of fresh water is consumed, while the limited freshwater resources are polluted. As a well-known testing institution in the industry, CTI is familiar with the operation and management policies of domestic market and has rich experience. It can provide professional monitoring scheme formulation, field sampling and laboratory analysis for domestic sewage, industrial wastewater, surface water, sediment, medical wastewater, groundwater, industrial circulating water, etc.