Legal analysis: According to the national standard for drinking water formulated by China, the ph value of drinking water is between 6.5 and 8.5, and the optimal value is 7.5. The ideal drinking water beneficial to human health must meet seven standards, two of which are essential: the water contains a proper amount of minerals needed by human body, and the ph value is weakly alkaline (7-8). The "Guide to Drinking Water Quality" formulated by the World Health Organization (who) clearly stipulates that only "safe water" can meet its 3 1 water quality index, and safe water refers to drinking water that is harmless to human body. Many experts put forward the concept of "healthy water". In addition to all the conditions of safe water, healthy water must also meet a series of indicators such as hardness, total dissolved solids and silicon dioxide. , in which the ph value must be greater than 7.
Legal basis: Article 10 of the Measures for the Supervision and Administration of Drinking Water Hygiene stipulates that centralized water supply units must have fine disinfection facilities for water quality and necessary water quality inspection instruments, equipment and personnel to conduct daily inspection of water quality, and submit the inspection data to the health and family planning department and the construction administrative department of the local people's government. Urban tap water supply enterprises and self-inspection facilities of water supply enterprises, the construction and implementation of their production management system, personnel qualifications and daily water quality testing are managed by the administrative department of urban construction.