1 General Provisions
1.0.1 This code is prepared with a view to guarantee the urban water safety and water environment quality, maintain the health water circulation and regulate the basic function and technical performance of urban water supply and drainage systems and facilities.
1.0.2 This code is applicable to the planning, investigation, design, construction, acceptance, running, maintenance and management, etc. of systems and facilities relevant to urban water supply, drainage, wastewater reclamation and reuse and rainwater utilization.
For urban water supply, systems and facilities for water intaking, delivery, purification, distribution and building water supply are included; for urban sewerage, systems and facilities for building drainage as well as collection, delivery, treatment and disposal of rainwater and sewage are included; for sewage reclamation and reuse and rainwater utilization, urban sewage reclamation and reuse and rainwater utilization systems as well as water and rainwater utilization facilities in local area, residential area and building are included.
1.0.3 The planning, investigation, design, construction, running, maintenance and management of urban water supply and drainage systems and facilities shall comply with the principles of making safety water supply, service function guarantee, resource conservation and environment protection keep harmonious development with the natural circulation of water.
1.0.4 Besides meeting those specified in this code, the planning, investigation, design, construction, running, maintenance and management of urban water supply and drainage systems and facilities shall also comply with those stipulated in the current relevant standards of the nation; when relevant current standards are inconsistent with those specified in this code, those specified in this code shall be observed.
2 Basic Requirements
2.0.1 Water supply and drainage system compatible with the development demands must be constructed in the urban to maintain the ecological security of water environment.
2.0.2 Urban water supply and drainage planning shall be based on the master plans of the region, urban and town, and shall be in harmony with water resource planning, water pollution control planning, ecological and environmental protection planning and disaster prevention planning, etc.
2.0.3 Urban water supply and drainage facilities shall be provided with capacities for responding to natural disaster, accident disaster, public health event, social security event and other emergency incidents.
2.0.4 The flood control criteria for urban water supply and drainage facilities shall not be less than the corresponding fortification requirements of serviced town and shall have appropriate safety margin.
2.0.5 Qualified materials and facilities must be used for urban water supply and drainage facilities. Meanwhile, the materials and facilities of urban water supply facilities must meet sanitary security requirements.
2.0.6 Water-saving and energy-saving technology, equipment, instrument and product shall be adopted for urban water supply and drainage system.
2.0.7 In urban water supply and drainage system, construction relevant to production safety, environmental protection and water-saving facility shall be designed, constructed and put into operation together with the principal part of the project.
2.0.8 Corresponding operation standards shall be prepared for the running, maintenance and management of urban water supply and drainage systems and facilities and be enforced strictly.
2.0.9 The construction and management for relevant facilities must be carried out during the construction and running of urban water supply and drainage engineering to meet the requirements for production safety, occupational sanitation safety, fire safety and safety and security.
2.0.10 Noise, wastewater, exhaust and solid wastes produced during the construction and running of urban water supply and drainage engineering shall not cause harm to surrounding environment and personal health and measures shall be taken to reduce the discharge of greenhouse gases.
2.0.11 Inflammable, explosive and toxic dangerous chemicals used and produced during the running of urban water supply and drainage facilities shall be managed strictly to avoid the occurrence of personal injury and disastrous accidents.
2.0.12 Safety protective measures shall be adopted for urban water supply and drainage related facilities that are set in public places for the convenience of maintenance and not influencing the public safety.
2.0.13 Corresponding anti-corrosion measures to be taken by structures, equipment and pipes shall be determined by urban water supply and drainage facilities according to the corrosivity of medium stored and transmitted by them and the environmental conditions.
2.0.14 When there is lack of current standard for regulating the adopted new technology, new process and new material or they are inconsistent with mandatory standard of project construction, approval shall be made based on relevant program and specification.
3 Water Supply
3.1 General Requirements
3.1.1 Urban water supply system shall be provided with the ability of assuring continuous and uninterrupted water supply to urban and meeting the water utilization requirements by urban regarding water quality, water volume and water pressure.
3.1.2 The water quality of drinking water in urban water supply must comply with the national current standard Standards for Drinking Water Quality.
Contents
1 General Provisions
2 Basic Requirements
3 Water Supply
3.1 General Requirements
3.2 Water Source and Water Abstraction
3.3 Water Pumping Station
3.4 Water Transmission and Distribution Pipe Network
3.5 Water Treatment
3.6 Building Water Supply
3.7 Building Hot Water and Purified Drinking Water
4 Wastewater
4.1 General Requirements
4.2 Building Drainage
4.3 Sewer
4.4 Drainage Pumping Station
4.5 Sewage Treatment
4.6 Sludge Treatment
5 Reuse of Sewage and Use of Rainwater
5.1 General Requirements
5.2 Source of Reclaimed Water and Its Water Quality
5.3 Water Reclamation Safety Guarantee
5.4 Use of Rainwater
6 Structure
6.1 General Requirements
6.2 Building
6.3 Pipe
6.4 Structural Earthquake-resistance
7 Machinery, Electric and Automation
7.1 General Requirements
7.2 Mechanical Equipment
7.3 Electrical System
7.4 Instrument and Automation Control System
Explanation of Wording in This Code
List of Quoted Standards
