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HJ 774-2015 English PDF

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HJ 774-2015: Technical guideline for the environmental protection status assessment of the centralized drinking water sources
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Basic data

Standard ID HJ 774-2015 (HJ774-2015)
Description (Translated English) Technical guideline for the environmental protection status assessment of the centralized drinking water sources
Sector / Industry Environmental Protection Industry Standard
Word Count Estimation 25,230
Date of Issue 2015-12-04
Date of Implementation 2016-03-01
Quoted Standard GB 12268; GB 13690; HJ/T 338; HJ/T 433; HJ 747; HJ 773
Regulation (derived from) Ministry of Environment Announcement 2015 No.80
Issuing agency(ies) Ministry of Ecology and Environment
Summary This Standard specifies the technical method of centralized drinking water source water quantity and quality, water source environmental management status and trend assessment. This Standard applies to evaluate multiple centralized drinking water sources environmental protection overall situation of a single centralized drinking water sources environmental protection conditions and administrative region (such as a city, town or township, etc.).

HJ 774-2015: Technical guideline for the environmental protection status assessment of the centralized drinking water sources


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Technical guideline for the environmental protection status assessment of the quality drinking water sources National Environmental Protection Standard of the People 's Republic of China Environmental Protection of Collective Drinking Water Source Evaluate technical specifications Technical guideline for the environmental protection status Assessment of the quality drinking water sources 2015-12-04 released 2016-03-01 implementation Ministry of Environmental Protection released Directory

Foreword

1 Scope of application

2 normative reference documents

3 Terms and definitions 1

4 Evaluation method

5 Evaluation results

6 Change trend assessment method ..10 7 Evaluation report preparation 11 Appendix B (informative appendix) Production instructions for centralized drinking water sources

Foreword

In order to implement the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on the Prevention and Control of Water Pollution, Drinking water source of environmental protection assessment of technical methods, and constantly improve the standardization of drinking water sources and environmental management of water Flat, to ensure water quality and safety, the development of this standard. This standard specifies the centralized drinking water source water and water quality, water source environmental management status and change the trend of the technical methods. This standard is the first release. Appendix A and B of this standard are informative. This standard is organized by the Ministry of Environmental Protection Science and Technology Standards Division. The main drafting of this standard. China Environmental Science Research Institute. This standard is approved by the Ministry of Environmental Protection on December 4,.2015. This standard has been implemented since March 1,.2016. This standard is explained by the Ministry of Environmental Protection. Technical specification for environmental assessment of centralized drinking water source

1 Scope of application

This standard specifies the centralized drinking water source water and water quality, water source environmental management status and change the trend of the technical methods. This standard applies to a single centralized drinking water source environmental protection and administrative areas (such as cities, towns or towns Etc.) assessment of the overall environmental protection of multiple centralized drinking water sources.

2 normative reference documents

This standard refers to the terms of the following documents. For undated references, the latest edition of this document applies to this standard. List of dangerous goods General rules for classification of chemicals and hazards Technical specification for division of drinking water source protection area Technical Requirements for Signs of Drinking Water Source Protection Area HJ/T 433 Specification for Centralized Drinking Water Source Code for HJ 747 Technical Requirements for Environmental Protection of Standardized Construction of Centralized Drinking Water Source

3 terms and definitions

The following terms and definitions apply to this standard. 3.1 centralized drinking water source Into the water pipe network to the user and have a certain size of the water (water supply population is generally greater than 1000 people) in use, spare And planning water sources. Depending on the water intake area, the centralized drinking water source can be divided into surface water drinking water source and underground Water drinking water source; depending on the type of water body where the water intake is different from the surface water drinking water source can be divided into river drinking water Water source and lake, reservoir type drinking water source. 3.2 standard water source source water reaching the standard According to the provisions of the national environmental protection departments, water quality assessment results to meet the relevant national standards of centralized drinking water sources. 3.3 water rate compliance rate of the source water quantity reaching the standard Water quality standards of centralized drinking water source and the total amount of water to assess the percentage. 3.4 rate of the water yield reaching the standard Water quality standards of centralized drinking water source water intake and assessment of the total amount of water intake percentage. 3.5 early warning monitoring In the specific monitoring section, select the specific indicators, the use of automatic (online) monitoring, monitoring water quality changes And the trend of risk prevention and control to provide a means of decision-making information. 3.6 video surveillance video monitoring The use of video (camera, monitor) and other facilities, sensitive or key areas of real-time monitoring of a measure. 3.7 decentralized domestic sewage Not included in the sewage collection pipe network collection and processing of townships, rural residents living sewage. 3.8 risk source risk May release toxic and hazardous substances to drinking water sources, resulting in deterioration of the water quality of drinking water sources, including but not Limited to industrial and mining enterprises, institutions and transportation of petrochemical, chemical products, such as pipeline sources; transport of dangerous chemicals, hazardous waste And other sources of vehicles, ships and other sources that affect the safety of drinking water sources; and may have an impact on the water quality of the water source No fixed pollution of the discharge point of livestock and poultry, aquaculture sewage and other non-point source. 3.9 Emergency protection facilities Emergency materials reserves, emergency pool, control gate, barge dam, diversion canal, water ditch and other emergency protection projects and equipment collectively.

4 Evaluation method

4.1 water quality assurance status Single water source. water quality assurance status (WG) with water withdrawal assurance rate WGRi said. Groundwater drinking water source, real When the water intake is less than or equal to the designed water intake, WGRi is 100%; otherwise, WGRi is 0. Surface water drinking water, When the water level is not less than the design level, WGRi is 100%; otherwise, WGRi is 0. The water supply in the administrative area. the rate assurance rate (WGRS) is the mean value of the assessment rate of water intake. The formula is. Where. N is the total number of water resources involved in the assessment in the administrative area. 4.2 water quality standards Water quality standards with SQ said. The assessment is water compliance rate (WSR) and water quality compliance rate (WQR). 4.2.1 Water compliance rate Single water source. Water compliance rate (WSRi) is calculated as. 0WSRi  Total water intake Water source compliance (2) The water source in the administrative area. the water quality compliance rate (WSRs) is calculated as. 0WSRS  The sum of the total water intake Water quality compliance (3) 4.2.2 water quality compliance rate Single water source. WQRi is 100% when water is reached; otherwise, WQRi is 0. Water quality in the administrative area. WQRS is the percentage of the total number of water sources and the total number of drinking water sources Ratio, the formula is. 0WQRs  Total number of drinking water sources The sum of the quantities of water (4) 4.3 Environmental management status The environmental management status is represented by MS. The contents of the assessment are protected area construction, protected area renovation, monitoring ability, risk prevention and control Emergency response capability, management measures and so on. 4.3.1 Construction of protected areas 4.3.1.1 Division of protected areas The division of the protected area is expressed by the division rate completion rate of the protected area. Individual water source. refer to HJ/T 338, divide the protected area and be approved, then PDi is 100%; otherwise, PDi is 0. Administrative area water source. protected area division completion rate (PDS) is calculated as. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.1.2 Protected area flag setting Protected area flag setting status is indicated by flag setting completion rate PS. Single water source. 100% based on HJ/T 433 completion flag set; not set according to HJ/T 433, PSi Is 60%; not set, PSi is 0. Administrative area water source. protected area flag set completion rate (PSS) formula is. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.1.3 Isolation of primary protected areas The first-class protected area isolation condition is expressed by the isolation protection completion rate PF1. Single water source. a protected area isolation protection project completion rate PF1i formula is. 0PF1i   should be completed isolation protection works The amount of actual completion of the isolation protection workers The amount of isolation work to be completed shall be determined according to the requirements of HJ 773, and the actual amount of isolation and protection works to be completed is the evaluation period Within the amount of work done. Administrative area water source. a protected area isolation and protection project construction completion rate (PF1s) is calculated as. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.2 remediation of protected areas 4.3.2.1 remediation of primary protected areas Single water source. Level 1 protected area remediation conditions with a protected area renovation rate PCR1 said. Including demolition of construction projects In addition to completion rate BCR1, sewage outfall closure completion rate DCR1 and cage culture demolition completion rate CBR1 and other three indicators. First class The remediation rate of the sanctuary is the arithmetic mean of the three indicators. The formula is. among them, 100 R1i   total area to be demolished construction project building Construction site (10) 0DCR1i   Total number of outflows Number of shutters (11) 0CBR1i   Total area of cage culture Cage Breeding Total Area (12) The specific requirements for remediation of primary protected areas are based on HJ 773. The total construction area of the construction project to be dismantled, the total quantity of the sewage outfall And the total area of the cage culture for the assessment period of the initial site survey data; construction project demolition of the building area, close the sewage outfall Quantity and total area of cage culture demolition for the assessment period to complete the workload. No completion rate of remediation indicators as 100%. Administrative area water source. a protected area remediation rate PCR1s calculation formula is. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.2.2 secondary protected area remediation Single water source. the completion of the secondary protected area remediation rate with the completion rate of PCR2, including point source, non-point source pollution Control and governance. Respectively, with the protection zone to open the sewage outfall completion rate of DCR2, decentralized sewage treatment completion rate DDSR2, decentralized livestock and poultry breeding waste comprehensive utilization rate LWUR2 and cage culture finishing rate CRR2 and other four Indicator. Grade 2 protected area remediation rate for the above four indicators of the arithmetic mean. The formula is. The specific requirements for remediation of secondary protected areas are based on HJ 773. The total amount of decentralized sewage and the total area of cage culture Assessment of the initial site survey data; decentralized livestock and poultry farming wastewater generation, the use of the total amount, as well as waste generation, the use of the total The amount can be obtained by means of on-site sampling survey; the total amount of decentralized domestic sewage treatment and cage culture is the assessment period Within the work done. No completion rate of remediation indicators as 100%. Administrative area water source. secondary protected area remediation rate PCR2s calculation formula is. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.2.3 quasi-protected area remediation Single water source. quasi-protected area of the completion of the rectification of quasi-protected area with PCQRi said, including industrial pollution (Including industrial park) Discharge rate of wastewater Discharge rate WRSRi, quasi-protected area Total amount of water pollutant reduction Completion rate TCWRi And water conservation forest construction completion rate WCRi. Quasi-protected area remediation rate for the above three indicators of the arithmetic mean. among them. Industrial pollution sources (including industrial parks) wastewater discharge compliance rate is calculated as. 0WRSRi   Total number of industrial pollution sources Quantity of industrial sources of pollution (20) Quasi-protected areas of water pollutant emissions reduction rate of completion of the formula is. 0TCWRi  Contaminants Reduction target volume Pollutant Reduction (21) The completion rate of water conservation forest construction is calculated as follows. 0WCR i   plot planning water conservation forest construction surface Water conservation forest construction area (22) The specific requirements for quasi-protected areas are based on HJ 773. The total amount of industrial pollution sources is the initial site survey data for the assessment period, The number of industrial sources of pollution emitted by the standard is the field survey data at the end of the assessment period. Pollutant reduction target volume is meant to ensure entry Into the surface water drinking water source secondary protected areas of water quality to meet the target requirements, in quasi-protected areas or catchment areas within the need to cut Reduction of pollutant emissions. The amount of pollutant reduction is the amount of reduction achieved during the assessment period. Planning water conservation forest construction area Water area related to the planning requirements of the construction area; water conservation forest construction area for the assessment period to complete the construction area. No need Remediation indicators, PCQRi as 100%. Administrative area water source. remediation rate PCQR s calculation formula is. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.3 monitoring capacity The monitoring capability status is expressed in WM, for routine monitoring (including commission monitoring) (MI), early warning monitoring (WE) and Frequency control (VS) weighted average. ) VS (WE0.3MI0.7WM  varies 480  /2 (24) 4.3.3.1 General monitoring status Single water source. The routine monitoring completion rate MIi is calculated as follows. 0MI i   The number of monitoring indicators to be completed Number of indicators to complete monitoring (25) Surface water drinking water source and groundwater drinking water source "should be completed the number of monitoring indicators", according to the environment at all levels The monitoring task issued by the protection authority is required to be determined. Administrative area water source. monitoring index completion rate MIs formula is. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.3.2 Early warning monitoring status Early warning monitoring status includes early warning monitoring completion rate and video surveillance completion rate of two indicators. The calculation formula of the single water source. early warning monitoring (WEi) and video monitoring (VSi) completion rate is. 0WEi   The number of warnings to be completed The actual number of early warning monitoring 0VSi   The number of video monitoring to be completed The actual number of video surveillance completed Early warning monitoring and video surveillance construction requirements based on HJ 773. The number of early warning monitoring and video surveillance construction is the evaluation period The number of finished. Do not need to build early warning monitoring and video surveillance, WEi or VSi as 100%. Administrative area water source. early warning monitoring completion rate WEs formula is. The video monitoring completion rate VSi is calculated as. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.4 risk prevention and control and emergency response capability 4.3.4.1 Risk prevention and control Single source. Risk control (RPC) risk management index completion rate RMR, including risk source list The completion rate of RDEi and the establishment of dangerous chemicals transport management system DCBRi two indicators. Risk management index completion rate of 2 The arithmetic mean of the index. The formula is. Among them, the identification and classification of hazardous chemicals, with reference to GB 12268 and GB 13690, the risk source list should include the risk source List and corresponding management measures. RDEi is 100%; otherwise, RDEi is 0. Has established a dangerous chemicals transport management system Degree, DCBRi is 100%; otherwise, DCBRi is 0. Upstream and surrounding pollution-free water sources, its RDEi and DCBRi As 100%. Risk source list covers. river-type water source for the quasi-protected areas and upstream 20 km, the depth of the river along the 1000m Area; lakes and reservoir-type water sources are quasi-protected areas or non-point source pollution import areas; groundwater sources are quasi-protected areas and their Closely related to the catchment range. The source of the quasi-protected area is not assigned to a range of secondary protected areas (primary protected areas) Area. Administrative area water source. risk management index completion rate RMRs is calculated as. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.4.2 Emergency capability Single water source. Emergency capability (ERC) with emergency management index completion rate EME representation. Including drinking water sources Emergency preparedness, revision and filing; emergency drills; materials and technical storage for major emergencies Emergency response project construction; emergency expert library; emergency monitoring capacity of six content. Where. According to the environmental protection authorities issued a request to complete a single indicator, the completion rate of 100%; otherwise, 0. EMEi The arithmetic mean of the completion rate of 6 individual indicators. Water sources in the administrative areas. water sources can be alternate, alternative water sources or water supply to multiple water supply With the emergency area with emergency water supply capacity, emergency water supply capacity of 100% EMS; otherwise 0. Emergency capability completion rate EME s The formula is. Where. N is the total number of water sources involved in the assessment in the administrative area. 4.3.5 Management measures Single water source. Management measures (MM) with management system completion rate MSR representation. Including water source code, water source file The system, the regular inspection of the protected areas, the regular assessment of environmental conditions, the establishment of information management platform and information disclosure and other six content. Among them. water source code based on HJ 747. In accordance with the requirements of environmental protection departments at all levels to complete the requirements of individual indicators, single refers to Standard completion rate of 100%; otherwise 0. MSRi is the arithmetic mean of the completion rate of 6 individual indicators. Administrative Area Water Source. Management System Completion Rate MSRs are calculated as. Where. N is the total number of water sources involved in the assessment in the administrative area.

5 Evaluation results

5.1 Classification assessment 5.1.1 Evaluation of water quality assurance status A single water source or administrative area of water, the water quality assurance status assessment score. 100WGRWG  (37) 5.1.2 Assessment of water quality standards A single water source or administrative area of water, the water quality assessment status assessment score. 100) 0.3WQR0.7WSRSQ   ((38) 5.1.3 Assessment of environmental management status Individual water sources or administrative areas of water, the environmental management status of MS assessment score. 100) W (INDEXMS ii  (39) Where INDEXi includes PD, PS, PF1, PCR1, PCR2, PCQR, WM, RMR, EME, MSR. The meaning and weight of each indicator symbol are shown in Table 1. Table 1 Centralized drinking water source assessment of environmental conditions and weight table Target layer System layer Weight indicator layer (INDEX) Sub-weight (Wi) Concentrated drinking water Source of environmental protection Condition evaluation index system (SWES) Water quality assurance Condition (WG) 0.1 water quality assurance rate (WGR) 1.0 Water standards Status (SQ) 0.6 Water compliance rate (WSR) 0.7 Water quality compliance rate (WQR) 0.3 Management status (MS) Protection area division (PD) 0.10 Protected area flag setting (PS) 0.05 Level 1 protected area isolation protection (PF1) 0.10 Primary protected area remediation (PCR1) 0.10 Secondary protected area remediation (PCR2) 0.10 Quas...

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