article 1 (purpose and basis of legislation) in order to strengthen drainage management, ensure the safe operation of drainage facilities, prevent waterlogging disasters, protect the water environment, and promote the scientific development of economy and society, these measures are formulated in accordance with the law of the people's Republic of China on the prevention and control of water pollution, the regulations on urban drainage and sewage treatment, the measures for the administration of urban sewage discharge into drainage networks and other relevant laws and regulations, and combined with the actual situation of this municipality.

article 2 (definition of concepts) the drainage facilities mentioned in these measures refer to pipelines, ditches, pumping stations (houses) and ancillary facilities such as gates, storm drains and inspection wells used for rainwater or sewage collection, lakes, rivers, sewage and sludge treatment and disposal facilities with storage functions and other related facilities.

drainage facilities include public drainage facilities and self-use drainage facilities. Public drainage facilities refer to drainage facilities mainly invested and built by the government for public use; Self-use drainage facilities refer to the drainage facilities built by units or individuals for the exclusive use of this area.

article 3 (scope of application) these measures are applicable to the planning, construction, operation, maintenance and management of urban drainage facilities within the administrative area of this municipality.

these measures are not applicable to agricultural production drainage, industrial wastewater treatment and water conservancy irrigation and drainage.

article 4 (departmental responsibilities) the municipal and county (district) housing and urban-rural construction departments are the municipal and county (district) drainage authorities (hereinafter referred to as the drainage authorities), responsible for the administrative management of drainage within their respective administrative areas, and responsible for organizing the implementation of these measures.

the municipal and county (district) drainage authorities may entrust specialized drainage management institutions to carry out daily drainage management.

the comprehensive law enforcement departments of urban and rural management of cities and counties (districts) exercise relevant functions of supervision and inspection, administrative punishment and administrative enforcement.

relevant departments of development and reform, natural resources, ecological environment, transportation, water conservancy, etc. shall, in accordance with their respective responsibilities, coordinate in the supervision and management of drainage.

article 5 (principles of drainage) drainage shall follow the principles of overall planning between urban and rural areas, unified planning, supporting construction, rain and sewage diversion and pollution control. Drainage facilities in newly-built areas shall be planned, constructed and put into use simultaneously with water supply facilities.

article 6 (construction of information platform for drainage facilities) the municipal and county (district) people's governments (administrative committees) shall establish and improve the management mechanism for the operation and maintenance of drainage specialty, establish an information platform for management evaluation and decision-making, and realize timely updating and reasonable sharing of drainage information. Actively promote the integration and professional operation and maintenance of sewage treatment plants, pipe networks and rivers and lakes to ensure the systematicness and integrity of sewage collection and treatment facilities.

article 7 (compilation of drainage planning) the drainage planning of huicheng district (except hengli town and Luzhou town) shall be uniformly compiled by the municipal drainage department in conjunction with the municipal natural resources and other relevant departments and huicheng district government, and shall be implemented after being approved by the municipal people's government.

The drainage planning of other counties (districts) and hengli town and Luzhou Town in Huicheng District shall be compiled by the drainage department of the county (district) in conjunction with the relevant departments of natural resources at the same level, and implemented after being approved by the people's government at the same level, and reported to the drainage department at the next higher level for the record.

The drainage planning shall not be changed without authorization. If it is really necessary to change, it shall be submitted for approval according to the original approval procedures.

article 8 (principles of construction and renovation of drainage facilities) the construction and renovation of drainage facilities shall meet the requirements of drainage planning and related planning of sponge city.

Newly-built, rebuilt and expanded buildings and communities, urban roads, green spaces and squares, parks and water systems should be classified to promote the absorption, storage and release of rainwater by ecosystems, control rainwater runoff, and realize natural accumulation, natural infiltration and natural purification.

when building, rebuilding or expanding sewage treatment facilities, the sewage pipe network should be built simultaneously, and the sludge treatment and disposal scheme should be determined simultaneously.

article 9 (risk assessment system) the competent drainage department shall, in accordance with the relevant provisions of the state, establish a drainage risk assessment system and a post-disaster assessment system, conduct a comprehensive inspection of drainage facilities before the flood season, and instruct the relevant units to deal with the problems found within a time limit, and strengthen the management of waterlogging-prone points such as villages in cities, squares, overpasses, tunnels, culverts and low-lying areas, strengthen drainage measures, and increase necessary compulsory drainage facilities and equipment.

article 11 (requirements for construction and renovation of drainage facilities) rain and sewage should be separated in new projects; Reconstruction and expansion projects need supporting the construction of drainage facilities, rain and sewage diversion should be implemented.

the completed area where rainwater and sewage meet should be transformed into rain and sewage separately.

in areas where rainwater and sewage are separated, it is forbidden for units or individuals to mix sewage pipes with rainwater pipes.

in addition to the rainwater drainage system on the roof, the drainage of balconies (terraces) of newly-built or rebuilt houses should be connected to sewage collection pipes and municipal sewage pipe networks.

article 11 (construction of sewage facilities for construction projects) in the area covered by the public sewage pipe network, the construction unit shall build its own sewage pretreatment facilities, and discharge the sewage into the public sewage pipe network according to the regulations after the treatment reaches the standard, and shall not discharge it at will. Sewage discharge shall comply with relevant national or local standards and regulations, such as Integrated Wastewater Discharge Standard, Water Quality Standard for Sewage Discharged into Urban Sewers, etc.

in the area not covered by the public sewage pipe network, the construction unit should build its own sewage treatment facilities, and discharge them after treatment; Or self-built drainage pipe network connected to public drainage facilities. Drainage households with self-built sewage treatment facilities are not allowed to set up sewage outlets without authorization to discharge the treated sewage into rivers and lakes. The cost of self-built sewage treatment facilities or drainage pipe network connecting with public drainage facilities shall be borne by the construction unit and included in the construction and installation costs.

article 12 (requirements for construction of drainage facilities and preliminary work) if drainage facilities need to be built for newly built, rebuilt or expanded projects, they should be designed, constructed and put into operation at the same time as the main project.

for the construction projects of public drainage facilities within the scope of urban drainage planning and the new construction, reconstruction and expansion projects that need to be connected with public drainage facilities, the competent department of urban and rural planning shall solicit the opinions of the competent department of drainage on the drainage facilities design scheme of the construction projects when issuing the planning conditions. The competent department of drainage shall put forward opinions on whether the drainage design scheme meets the drainage planning and related standards.

article 13 (completion acceptance and filing of drainage facilities) after the completion of the construction of public drainage facilities, the construction unit shall organize the completion acceptance according to law, and notify the local drainage authorities or the specialized drainage management institutions entrusted by them to participate. Only those who pass the completion acceptance can be delivered for use, and within fifteen days from the date of completion acceptance, the completion acceptance report and related materials shall be reported to the local drainage authorities for the record.

the construction unit shall organize the repair or reconstruction of the drainage facilities that fail to pass the inspection.

article 14 (standards for acceptance of drainage facilities) the acceptance of public drainage facilities shall meet the following conditions:

(1) compliance with relevant standards or technical specifications;

(2) Carry out the construction according to the documents and drawings approved by relevant departments;

(3) The drainage pipeline shall be constructed according to the separation of rainwater and sewage;

(4) meeting the requirements of drainage and flood prevention;

(5) the drainage facilities are in good condition and unblocked;

(6) Other conditions stipulated by laws and regulations.

article 15 (maintenance and repair responsibilities of operating units) the maintenance and operation unit shall be responsible for the maintenance, repair and daily management of public drainage facilities, which shall be determined by the competent drainage department through bidding and entrustment.

the self-use drainage facilities are managed by the owners themselves, or they can be entrusted to other units or individuals to ensure normal operation and discharge up to the standard. The owner of the drainage facilities shall sign a management agreement with the maintenance and operation unit to clarify the management responsibility.

article 16 (removal, alteration and relocation of drainage facilities) if drainage facilities need to be removed, rebuilt or moved due to engineering construction, the construction unit shall obtain the consent of the competent department of urban and rural planning and the competent department of drainage in advance, and bear the expenses of reconstruction, reconstruction and temporary measures.

article 17 (provisions on connection) the construction unit shall build facilities such as connecting pipe networks according to the drainage design scheme; Without the construction of connecting pipe network and other facilities, it shall not be put into use. The construction unit shall accept the guidance and supervision of the drainage department or its entrusted drainage management specialized agency.

if the connecting pipe network and other facilities are not built or the drainage does not meet the prescribed standards, the competent drainage department or the comprehensive law enforcement department of urban and rural management may notify the water supply enterprise to restrict its water supply.

article 18 (requirements for drainage households to apply for drainage permit) enterprises, institutions and individual industrial and commercial households (hereinafter referred to as drainage households) engaged in industrial, construction, catering, medical and other activities shall apply to the drainage authorities for a permit to discharge sewage into the drainage pipe network (hereinafter referred to as drainage permit), and drainage can only be carried out after approval by the drainage authorities.

if there are multiple drainage households in a centrally managed building or unit, the property right unit or its entrusted property management unit may apply for a drainage permit in a unified manner, and the licensed unit shall be responsible for the drainage behavior of the drainage households.

article 19 (classification of drainage households) drainage households are divided into general drainage households and key drainage households.

key drainage households refer to drainage households whose discharge of sewage may cause harm to the normal operation of drainage facilities, including:

(1) medical units with monthly water consumption of more than 511 cubic meters;

(2) hotels, canteens and other catering enterprises with a monthly water consumption of more than 511 cubic meters;

(3) Discharge of sewage will corrode drainage pipelines and affect the normal operation of chemical and biological laboratories of sewage treatment facilities;

(4) farms, slaughterhouses and food processing enterprises;

(5) garbage disposal sites (stations);

(6) car washing industry, automobile maintenance industry and farmers' market;

(7) metallurgical, electroplating, chemical, printing and dyeing, pharmaceutical, paper-making, leather processing, mechanical processing, pharmaceutical and other enterprises;

(8) Other non-resident drainage households with monthly water consumption of more than 1,111 cubic meters;

(9) Other drainage households whose sewage discharge is likely to cause harm to the normal operation of urban drainage facilities.

drainage households other than those specified in the second paragraph above are general drainage households.

Article 21 (Materials Required for Applying for Drainage Permit) When a drainage household applies for drainage permit, it shall provide the following materials:

(1) An application form for drainage permit;

(2) Drawings and descriptions of drainage pipe network, special inspection well, location and caliber of sewage outfalls, etc.;

(3) relevant materials for the construction of sewage pretreatment facilities according to regulations;

(4) New construction, reconstruction and expansion projects shall be submitted: a written letter of commitment to inform the drainage project that it is qualified with the seal of the legal entity of the drainage household and signed by the legal representative; The existing project shall provide a written undertaking that the legal entity of the drainage household is sealed and signed by the legal representative to ensure that there is no mixed connection or wrong connection of rainwater and sewage pipe network and mixed discharge of rainwater and sewage;

(5) a written commitment letter of qualified drainage water quality and water discharge sealed by the legal entity of the drainage household and signed by the legal representative;

(6) drainage households listed in the list of key pollutant discharge units of the competent department of ecological environment shall provide relevant materials that have installed online automatic monitoring equipment capable of detecting water quantity, pH value and chemical oxygen demand at the discharge port;

(7) other materials as prescribed by laws and regulations.

if the activity involves changing the nature of the planned use of the use place, the drainage department shall solicit the opinions of the urban and rural planning department.

in the area covered by the drainage pipe network, all kinds of construction operations shall drain water to the drainage facilities of the public. When the construction unit applies for the construction drainage permit, it shall provide the materials in Items (1), (3) and (5) of the first paragraph of this article.

article 21 (requirements for special inspection wells) special inspection wells for drainage include rainwater inspection wells and sewage inspection wells.

drainage households should set up rain water detection wells and sewage detection wells respectively before the connection point between self-use drainage facilities and public drainage facilities, and install water quality detection well identification plates.

Article 22 (Pretreatment Facilities) The following drainage households shall set up sewage pretreatment facilities in accordance with relevant national and local standards and norms:

(1) If the drainage of canteens, restaurants, meat and food processing contains edible oil, or the drainage contains gasoline, kerosene, diesel oil and other industrial oils, a grease trap shall be set up;

(2) Farms, slaughterhouses, farmers' markets, etc. should be equipped with grid wells before sewage detection wells;

(3) Car washing industry, automobile maintenance industry, etc. should be operated indoors, and a three-stage sedimentation tank should be set in front of the sewage detection well;

(4) hair collection wells should be set up in beauty salons;

(5) Drainage households with toxic and harmful pollutants shall adopt corresponding sewage pretreatment facilities.

article 23 (requirements for land use of inspection wells and pretreatment facilities) special inspection wells and pretreatment facilities for drainage shall be located within the red line of land for construction projects, and in a position convenient for dredging and maintenance, and shall not occupy land for public facilities.

article 24 (issuance of drainage permit) if the conditions stipulated in the measures for the administration of urban sewage discharge into the drainage pipe network are met, the drainage permit valid for 5 years shall be issued by the competent department of urban drainage.

article 25 (contents of drainage permit) the drainage permit issued by the drainage department to the drainage households shall record the name of the drainage households, the water quality and quantity of the drainage, and the effective period.

drainage households shall discharge water according to the contents recorded in the drainage permit.

article 26 (change and renewal of drainage permit) if it is necessary to change the name of the drainage user or the contents such as the water quality and quantity of the drainage, the drainage user shall apply 31 days in advance, and the change can only be made after approval. The competent department of drainage shall make a decision on whether to approve the change in time.

if it is necessary to extend the validity period of the drainage permit, the drainage households shall apply 31 days before the expiration of the validity period of the drainage permit. The competent department of drainage shall make a decision on whether to grant the extension before the expiration of the validity period of the drainage permit; If the extension is granted, the validity period shall be extended for 5 years.

article 27 (requirements for the subject of drainage supervision and inspection) drainage monitoring institutions with metrological certification qualifications shall be entrusted by the drainage authorities to regularly monitor the water quality and quantity of sewage discharged by drainage households. Every year, the sampling inspection of key drainage households is not less than 1 times, and sampling inspection methods are adopted for general drainage households. The cost of testing is included in the budget of the drainage department.

water quality testing items include but are not limited to pH value, five-day biochemical oxygen demand, chemical oxygen demand, suspended solids and ammonia nitrogen.

drainage monitoring institutions shall establish drainage monitoring files. The drainage monitoring files shall include the basic information of drainage households, the connecting materials of drainage facilities, the quality of drainage, the monitoring results of water quantity, the drainage permit, etc. Drainage households should be monitored and provide relevant information truthfully.

article 28 (water quality standard for sewage treatment) after sewage is treated by a sewage treatment unit, the water quality shall meet the national and local sewage treatment and water pollutant discharge standards.

strictly implement the management of pollutant discharge permit system and fully meet the discharge standards of industrial pollution sources. It is forbidden for industrial enterprises, institutions and other producers and operators to discharge waste water and sewage without or in violation of the provisions of the sewage permit; It is forbidden to use seepage wells, pits, cracks and caves, set concealed pipes privately, tamper with or forge monitoring data, or run water pollution prevention and control facilities abnormally.