Notice of the General Office of the Ministry of Housing and Urban-Rural Development and the General Office of the National Development and Reform Commission and the National Administration of Disease Control and Prevention on strengthening the safety of urban water supply

Urban water supply is an important livelihood project, related to the people's health and social stability. In order to further improve the level of urban water supply safety, the relevant matters are hereby notified as follows.

1. Overall requirements

Adhere to the people-centered development philosophy, comprehensively and systematically strengthen urban water supply work, and promote the high-quality development of urban water supply. Continue to enhance water supply safety and security capabilities to meet the people’s growing needs for a better life. Starting from April 1, 2023, urban water supply will fully implement the "Hygienic Standards for Drinking Water" (GB 5749-2022); by 2025, a relatively complete urban water supply full-process guarantee system and a basically sound urban water supply emergency system will be established.

　2. Promote the transformation of water supply facilities

　(1) Upgrade and transform water plant technology.

All localities should organize urban water supply enterprises to conduct reviews of water purification processes and effluent water quality compliance capabilities of water plants against the requirements of the "Hygienic Standards for Drinking Water" (GB 5749-2022). If renovation is needed, upgrading and renovation must be implemented in an orderly manner in accordance with national and industry engineering construction standards and health regulations. We should focus on sensory indicators, disinfection by-product indicators, new indicators, stricter limit indicators, and potential risk indicators of water source water quality. When the water source water quality cannot stably meet the standards or there are odors and tastes that are not within the water source water quality standards but will affect the water supply standards, When removing substances, relevant departments should be coordinated to adjust the water source or add pre-treatment or advanced treatment processes as needed.

(2) Strengthen the construction and transformation of water supply pipeline networks.

New water supply pipe networks must be planned and constructed in strict accordance with relevant standards and specifications, using advanced, applicable, reliable quality, and hygienic standard water supply pipe materials and construction techniques. The use of water pipes and construction techniques that have been expressly prohibited by the state is strictly prohibited. Cement pipes, asbestos pipes, gray cast iron pipes without anti-corrosion lining, etc. to ensure construction quality. Prepare a plan for the renewal and renovation of aging water supply pipelines in the region. For inferior pipes and pipelines that affect water supply quality, hinder water supply safety, and have serious leakage, and other pipelines that have been in operation for more than 30 years and pose safety risks, they should be combined with the renovation of old underground pipelines such as gas, etc. Urban renewal, renovation of old residential areas, renovation of secondary water supply facilities and "one household, one meter" renovation will be accelerated. RealityImplement leakage management in public water supply pipe networks to continuously reduce the leakage rate of water supply pipe networks. Further improve the management level of the water supply pipeline network, and achieve safe, low-consumption, energy-saving operation of the water supply pipeline network system through zoning metering, pressure control, optimized dispatch, intelligent management and other measures to meet users' water quantity, water pressure, and water quality requirements.

(3) Promote the overall management of residents’ pressurized storage facilities.

All localities should comprehensively investigate the water supply pressurization and storage facilities in residential areas, find out the basic situation of facility water supply scale, water supply method, water quality assurance level, service population, maintenance entities, etc., and establish dynamic updates of information mechanism. Encourage the simultaneous construction of water quality indicator monitoring facilities such as disinfectant residue and turbidity in pressurized storage facilities of newly built residential buildings, and coordinate the layout and construction of disinfection facilities. If existing pressure regulation and storage facilities do not comply with hygiene and engineering construction standards and specifications, they should be accelerated to implement updates and renovations, and measures to prevent flooding and power outages should be implemented. Explore the installation of emergency water supply interfaces that can be connected to external pressurized equipment such as water supply trucks on the water inlet pipes of construction communities and buildings. Further rationalize the management mechanism of pressurized water supply and storage facilities for residents, and encourage them to be handed over to water supply companies for professional operation and maintenance in accordance with laws and regulations. For pressurized regulation and storage facilities that are operated and managed by water supply companies, their operation, maintenance, repair and update costs will be included in the water supply price, and the price for residential electricity will continue to be implemented. If the transfer conditions are not yet met, the urban water supply and disease prevention and control authorities should guide and supervise the property rights units or property management units to carry out the operation and maintenance of the facilities in accordance with regulations and regulations.

　3. Improve water supply testing and emergency response capabilities

　 (4) Strengthen water supply quality testing.

The local disease prevention and control authorities should formulate and organize the implementation of local drinking water hygiene supervision and monitoring work plans in accordance with the "Measures for the Supervision and Management of Drinking Water Hygiene", intensify supervision and inspection, and carry out inspections in accordance with the law. Investigate and punish illegal activities; strengthen water quality and sanitation monitoring, effectively monitor the sanitation management and water quality of centralized water supply and secondary water supply in urban areas, carry out water supply sanitation safety risk assessment, promptly discover hidden dangers, and prevent health and safety risks. The urban water supply authorities should, in accordance with the "Urban Water Supply Water Quality Management Regulations", strengthen the capacity building of urban water supply water quality monitoring, establish and improve the urban water supply water quality supervision and inspection system, and organize and carry out key water quality inspections on factory water, pipe network water, and secondary water supply. Indicator full coverage check. Make a good connection between national random supervision and spot inspection tasks and local daily supervision work. Urban water supply enterprises should scientifically configure their water supply laboratory testing capabilities in accordance with the Level III requirements of no less than the "Technical Specifications for Urban Water Supply and Sewage Treatment Laboratories" (CJJ/T 182). When the processing scale is greater than 100,000 cubic meters per day, The laboratory level should be improved. Urban water supply enterprises and pressurized storage facility management units must establish and improve water quality testing systems."Urban Water Supply Engineering Project Specifications" (GB 55026) and "Urban Water Supply Water Quality Standards" (CJ/T 206) clearly specify the requirements for testing items, testing frequency and standard methods, and regularly test urban water source water, factory water and pipe network terminal water. Water quality; further improve the online monitoring system for water supply quality, rationally arrange monitoring points, scientifically determine monitoring indicators, and strengthen the operation and maintenance of online monitoring equipment.

(5) Strengthen the construction of emergency water supply capabilities.

All localities should improve water supply emergency plans based on the new situations, new problems, and new challenges faced by urban water supply in recent years, and further clarify different risk situations such as sudden pollution of water sources and sudden changes in droughts and floods. water supply emergency response mechanism. Strengthen water supply quality monitoring and early warning, identify potential characteristic pollutants based on water source risks, urge water supply companies to strengthen relevant emergency water purification materials and water purification technology reserves, and improve emergency water purification process operation plans. The urban water supply authorities with a single water source should actively coordinate and cooperate with relevant departments to speed up the construction of emergency water sources or backup water sources. Provinces and cities where the national water supply emergency rescue base is located should establish a daily maintenance system for emergency water purification equipment, implement operation and maintenance funds, and continuously improve water supply emergency rescue capabilities.

(6) Strengthen safety precautions for water supply facilities.

Water supply enterprises and pressurized storage facility management units must comprehensively carry out safety hazard investigation and rectification, coordinate epidemic prevention and control and safety production, and strive to improve water supply facilities to respond to emergencies and natural disasters capabilities to enhance water supply system resilience. Cities that draw from underground water sources should conduct regular or irregular inspections and rectifications of the sanitary conditions and safety hazards of water source wells during flood seasons and epidemics, prevent rainwater backflow and water intake facilities from being flooded, and strengthen water quality testing and disinfection. In accordance with the relevant requirements for anti-terrorism prevention in the urban water supply system, we must strengthen the safety management of water supply facilities, take comprehensive safety precautions such as civil defense, technical defense, and physical defense for key targets and key locations such as water intakes, water plants, and pumping stations, and establish Improve the water supply safety prevention and management system.

　4. Optimize and improve urban water supply services

　(7) Promote the level of intelligent management of water supply.

All localities should continue to improve the informatization level of water supply supervision, promote the construction and information sharing of city-level and provincial-level water supply supervision platforms, and timely and accurately grasp key information such as urban water sources, water supply facilities, and water supply quality. , and provide business support for urban water supply supervision. Promote the census of water supply pipelines and other facilities, improve the dynamic update mechanism of information, and update the base map of water supply facility information in real time. Guide water supply companies to strengthen the intelligent transformation of water supply facilities, encourage qualified areas to combine renovation and transformation to build intelligent sensing equipment, and build urban water supply Internet of Things and operation dispatching platforms.The platform realizes functions such as dynamic updating of facility base numbers, real-time monitoring of operating status, risk scenario simulation and prediction, optimized dispatching auxiliary support, etc., and continuously improves the refinement level of water supply facility operations.

(8) Promote the disclosure of water supply information.

All localities should strengthen the supervision, management and guidance of information disclosure by water supply enterprises and institutions, and standardize information disclosure. Urban water supply units should formulate implementation details based on the "Implementation Measures for Information Disclosure of Water Supply, Gas Supply, Heating and Other Public Enterprises and Institutions" (Jiancheng Gui [2021] No. 4), "Urban Water Supply Services" (GB/T 32063), etc., to The list method refines and clearly lists the information content and time limit requirements, and dynamically adjusts them according to the actual situation. Continue to improve the efficiency and quality of water supply services, innovate service methods, formulate simple and standardized water supply service processes based on local conditions while ensuring water supply safety, clarify service standards and time limits, and optimize the business environment.

5. Improve safeguard measures

(9) Implement detailed responsibilities.

The water supply and disease prevention and control authorities at all levels should deepen departmental collaboration, strengthen information sharing, and jointly ensure water supply safety; urban water supply authorities should strengthen guidance and supervision of urban water supply and organize water supply operations Standardized assessment, sampling inspection of water supply quality, etc., timely identification of problems, careful rectification and implementation; disease prevention and control authorities should further strengthen supervision, management and monitoring of drinking water hygiene in accordance with the law, continue to carry out supervision and inspection of drinking water hygiene and safety, involving drinking water hygiene and safety Products must obtain health licenses in accordance with the law. Implement the main responsibility of the urban people's government for water supply safety, and carry out urban water source security, water supply facility construction and renovation, water supply management and operation mechanisms, etc. Coordinate and formulate implementation plans in the medium to long term. Urban water supply enterprises must continuously improve their internal management and control systems, promote the construction, renovation, operation and maintenance of urban water supply facilities, and ensure the safe and stable operation of the water supply system.

(10) Strengthen factor protection.

All localities should increase investment, accelerate the construction of water supply infrastructure, support and urge water supply enterprises to coordinate and integrate relevant channel funds, and ensure funds for the construction, renovation, operation and maintenance of water supply pipeline networks. It is necessary to increase the training of personnel in water plant operation, water quality testing, pipe network operation and maintenance, and enterprise operation management to improve the professional capabilities of employees. Pricing authorities in various regions should rationally formulate and dynamically adjust water supply prices in accordance with relevant requirements such as the "Measures for the Administration of Urban Water Supply Prices" and the "Measures for the Supervision and Review of Urban Water Supply Pricing Costs". Taking into account factors such as the local economic and social development level and user affordability, price adjustments should not beIf the implementation makes it difficult for water supply enterprises to achieve the permitted income, the local people's government shall provide corresponding compensation.

General Office of the Ministry of Housing and Urban-Rural Development

State General Office of the National Development and Reform Commission

Comprehensive Department of the National Administration of Disease Control and Prevention

August 30, 2022

(This article is released to the public)