HJ 25.2-2019 English PDFUS$369.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. HJ 25.2-2019: Technical guidelines for monitoring during risk control and remediation of soil contamination of land for construction Status: Valid HJ 25.2: Historical versions
Basic dataStandard ID: HJ 25.2-2019 (HJ25.2-2019)Description (Translated English): Technical guidelines for monitoring during risk control and remediation of soil contamination of land for construction Sector / Industry: Environmental Protection Industry Standard Classification of Chinese Standard: Z04 Classification of International Standard: 13.020 Word Count Estimation: 16,136 Date of Issue: 2019 Date of Implementation: 2019-12-05 Issuing agency(ies): Ministry of Ecology and Environment HJ 25.2-2019: Technical guidelines for monitoring during risk control and remediation of soil contamination of land for construction---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. (Technical guidelines for soil pollution risk management and repair monitoring on construction land) National Environmental Protection Standard of the People's Republic of China Replaces HJ 25.2-2014 Control and Remediation of Construction Site Soil Pollution Risk Monitoring technical guidelines Technical guidelines for monitoring during risk control and remediation of soil contamination of land for construction 2019-12-5 release 2019-12-5 Implementation Released by the Ministry of Ecology and Environment ContentsForeword ... ii 1 Scope ... 1 2 Normative references ... 1 3 Terms and definitions ... 1 4 Basic principles, work content and work procedures ... 2 5 Monitoring plan development ... 3 6 Monitoring point layout ... 4 7 Sample Collection ... 9 8 Sample analysis ... 11 9 Quality control and quality assurance ... 11 10 Preparation of monitoring report ... 12ForewordAccording to the "Environmental Protection Law of the People's Republic of China" and the "Law of the People's Republic of China on Soil Pollution Control", Physical health, protecting the ecological environment, strengthening environmental protection and management of construction land, standardizing soil pollution risk management of construction land Control and repair monitoring, develop this standard. This standard specifies the principles, procedures, work contents and techniques for the management and restoration monitoring of soil pollution risks on construction land. Claim. This standard was first published in.2014, and this is the first revision. The main contents of this revision include. 1. The standard name was revised from the Technical Guidelines for Site Environmental Monitoring to the Management and Remediation of Soil Pollution Risks on Construction Land Guidelines for Monitoring Technology; 2. The scope of application shall be modified accordingly with reference to the standard name; 3. Added the normative reference document "Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard" (GB 36600), updated the relevant standard content of normative references; 4. Added terms and definitions for "soil pollution risk control and restoration", deleted "site" and "contaminated site" Terms and definitions, modified the terms and definitions of "concerned about pollutants"; 5. Modify "Repair Engineering Acceptance" to "Repair Effect Evaluation" and "Deep Soil" to "Lower Soil" Soil "; 6. Improved the relevant content of the monitoring project and well washing requirements, and refined the vertical sampling interval of soil and evaluation of remediation effect Monitor layouts and more. This standard and the following standards belong to a series of environmental protection standards for soil pollution risk management and restoration of construction land. "Technical Guidelines for Investigation of Soil Pollution on Construction Land" (HJ 25.1); "Technical Guidelines for Risk Assessment of Soil Pollution on Construction Land" (HJ 25.3); "Guidelines for Soil Remediation Technology for Construction Land" (HJ 25.4); "Technical Guidelines for Risk Control of Contaminated Land and Evaluation of Soil Remediation Effect" (HJ 25.5); "Guidelines for Groundwater Remediation and Risk Management and Control of Contaminated Land" (HJ 25.6). As of the implementation of this standard, the Technical Guidelines for Site Environmental Monitoring (HJ 25.2-2014) is abolished. This standard was formulated by the Department of Soil Ecology and Environment, Laws and Standards Department of the Ministry of Ecology and Environment. The main drafters of this standard. Shenyang Research Institute of Environmental Sciences, Institute of Environmental Standards of the Ministry of Ecology and Environment, Light Industry Environmental Protection Institute of Environmental Protection, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Shanghai Academy of Environmental Sciences. This standard was approved by the Ministry of Ecology and Environment on December 5,.2019. This standard will be implemented as of December 5,.2019. This standard is explained by the Ministry of Ecology and Environment. Technical guidelines for soil pollution risk management and repair monitoring on construction land1 ScopeThis standard specifies the basic principles, procedures, work content and skills requirement. This standard applies to the investigation of soil pollution on construction land and the assessment of soil pollution risk, risk control, restoration, Environmental monitoring of activities such as risk management and control effectiveness assessment, restoration effectiveness assessment, and subsequent management. This standard does not apply to the monitoring of radioactive and pathogenic biological pollution on construction land.2 Normative referencesThe content of this standard refers to the clauses in the following documents. For undated references, the valid version applies For this standard. GB 3095 Ambient Air Quality Standard GB 5085 Hazardous Waste Identification Standard GB 14554 Emission Standard for Odor Pollutants GB 36600 Soil Environmental Quality Control Standards for Soil Pollution Risk of Construction Land GB 50021 Geotechnical Engineering Exploration Code HJ/T 20 Technical Specifications for Sampling and Preparation of Industrial Solid Waste HJ 25.1 Technical Guidelines for Investigation of Soil Pollution on Construction Land HJ 25.4 Technical guidelines for soil remediation for construction land HJ 25.5 Technical Guidelines for Risk Management and Contamination Evaluation of Contaminated Land HJ/T 91 Technical specifications for surface water and sewage monitoring HJ/T 164 Technical Specifications for Groundwater Environmental Monitoring HJ/T 166 Technical Specifications for Soil Environmental Monitoring HJ/T 194 Technical Specifications for Manual Monitoring of Ambient Air Quality HJ 298 Technical Specification for Hazardous Waste Identification HJ 493 Technical regulations for the storage and management of water samples3 terms and definitionsThe following terms and definitions apply to this standard. 3.1 Risk control and remediation of soil contamination Soil pollution risk management and remediation includes investigation of soil pollution status and assessment of soil pollution risks, risk management and control, repair Assessment, risk management and control effect assessment, restoration effect assessment, and later management activities. 3.2 Contaminant of concern Determine the need for soil pollution based on the characteristics of the land pollution, relevant standards and specifications, and stakeholder opinions Pollutants in environmental surveys and soil pollution risk assessments. 3.3 Soil mixture sample Refers to the soil sample after the surface layer or the same layer of soil is evenly mixed. The number of sampling points that make up the mixed sample should be 5-20. 4 Basic principles, work content and work procedures 4.1 Basic principles 4.1.1 Principles of relevance Plot environmental monitoring should be based on the investigation of soil contamination status, soil pollution risk assessment, treatment and restoration, and evaluation of restoration effects. The purpose and requirements of environmental management at various stages such as assessment and retrospective assessment are carried out to ensure the coordination, consistency and timeliness of monitoring results. Effectiveness, providing a basis for environmental management of the plot. 4.1.2 Normative principles Programmatically and systematically standardize the basic principles, working procedures and working methods that should be followed in the environmental monitoring of land plots Method to ensure the scientificity and objectivity of the land environment monitoring. 4.1.3 Feasibility Principle Survey and review of soil pollution status and soil pollution risk assessment, governance and restoration, and assessment of remediation effects In the conditions of monitoring requirements at various stages such as performance assessment, comprehensive consideration of factors such as monitoring costs and technology application levels, to ensure that The monitoring work was feasible and the follow-up work went smoothly. 4.2 Work content 4.2.1 Survey and monitoring of soil pollution in the plot The environmental monitoring during the investigation of soil pollution status and the risk assessment of soil pollution, the main work is to use monitoring Means to identify pollutants of concern and hydrogeological characteristics in soil, groundwater, surface water, ambient air, residual waste Collect, and comprehensively analyze and determine the types of pollution, the degree of pollution, and the scope of pollution in the plot. 4.2.2 Monitoring of land improvement and repair Environmental monitoring during land remediation and repair, the main work is the implementation effect of various remediation and repair technical measures Relevant monitoring carried out, including the monitoring of environmental protection engineering quality and secondary pollutant discharge during the process of remediation Monitoring. 4.2.3 Evaluation and monitoring of land restoration effect The environmental monitoring after the completion of the land remediation project is to assess and evaluate the Whether it has met the identified restoration goals and the relevant requirements raised by the engineering design. 4.2.4 Retrospective Evaluation and Monitoring of Land After evaluation of the repair effect of the land, within a specific time range, in order to evaluate the land and soil Environmental monitoring of the environmental impacts of sewage, surface water and ambient air, as well as long-term in situ treatment of the land Validate environmental monitoring of the effects of physical restoration measures. 4.3 Working Procedure The working procedures of land environmental monitoring mainly include monitoring content determination, monitoring plan formulation, monitoring implementation and monitoring report Report preparation. The determination of the monitoring content is to determine the specific work content according to the requirements in 4.2 after the monitoring is started; the monitoring plan is formulated Including the process of data collection and analysis, determination of monitoring scope, monitoring medium, monitoring project and monitoring work organization, etc. The implementation includes monitoring point layout, sample collection and sample analysis.5 Development of monitoring plan5.1 Data collection and analysis According to the phased conclusions of the investigation of the soil pollution status of the plot, and consider the monitoring and evaluation of the remediation effect of the plot Monitoring and retrospective evaluation The purpose and requirements of each stage of monitoring, determine the plot information that should be collected in each stage of monitoring, It shall include the information obtained in the investigation phase of the soil contamination of the plot and the information collected in the monitoring and supplementary stages. 5.2 Monitoring scope 5.2.1 The monitoring range of the soil pollution status of the plot is the boundary range of the plot initially determined in the previous soil pollution status survey. Around. 5.2.2 The monitoring scope of the land remediation repair shall include the land remediation scope determined in the design of the remediation repair project, and the Areas affected by wastewater, waste gas, and residue during remediation. 5.2.3 The monitoring scope of the land remediation effect evaluation shall be consistent with the scope of land remediation and restoration. 5.2.4 The retrospective assessment and monitoring scope of the plot shall include the potential for environmental impact on soil, groundwater, surface water and ambient air The extent of the impact, and the extent of the area that may be affected by long-term remediation projects. 5.3 Monitoring objects The monitoring objects are mainly soil, and if necessary, groundwater, surface water, and ambient air should also be included. 5.3.1 Soil The soil includes the top soil and the lower soil in the plot. The specific depth division of the top soil and the lower soil should be based on The periodic conclusions of the investigation of the soil pollution status of the plot were determined. The backfill layer present in the plot can generally be used as topsoil. 5.3.2 Groundwater Groundwater is mainly groundwater within the boundary of the plot or shallow groundwater that flows through the plot to the downstream pooling area. in In areas where the pollution is heavy and the geological structure is conducive to the migration of pollutants to the lower soil, deep groundwater is monitored. 5.3.3 Surface water Surface water is mainly surface water flowing through or pooling within the boundary of the plot. For heavily polluted plots, it should also be considered Downstream pooling area of surface water. 5.3.4 Ambient air Ambient air refers to the air in the center of the contaminated area of the plot and the air downwind to the main environmentally sensitive points. 5.3.5 Residual waste Residual waste of the plot should also be considered in the monitoring object of the survey of soil pollution in the plot, mainly including the residual in the plot Production materials, industrial waste residues, waste chemicals and their pollutants, solid residues left in waste facilities, containers and pipelines Solid, semi-solid, and liquid materials, and other solid materials that differ significantly from local soil characteristics. 5.3.6 The object of land remediation and repair monitoring should also include substances discharged during the remediation process, such as waste gas, wastewater and waste Slag etc. 5.4 Monitoring project 5.4.1 Survey and monitoring project of soil pollution in the plot 5.4.1.1 The preliminary sampling and monitoring items for the investigation of soil pollution in the plot shall be in accordance with the requirements of GB 36600 and the preliminary soil pollution status. The phased conclusions of the survey and the work plan at this stage are determined, and they are determined in accordance with the relevant requirements of HJ 25.1. Possible risks Hazardous waste monitoring projects shall be determined with reference to relevant indicators in GB 5085. 5.4.1.2 Detailed survey of soil pollution in the land The characteristics of dyes and plots shall be determined in accordance with the relevant requirements of HJ 25.1. 5.4.2 Land governance and restoration, restoration effect evaluation and retrospective evaluation monitoring project 5.4.2.1 Soil monitoring items are indicators for soil pollution risk assessment that need to be treated and repaired. Groundwater, surface Water and ambient air monitoring projects shall be determined according to the technical requirements for treatment and restoration. 5.4.2.2 The monitoring project should also consider the pollutants that may be generated during the land remediation and repair process. The technical requirements of the double process are determined, see relevant requirements in HJ 25.4. 5.5 Organization of monitoring work 5.5.1 Division of monitoring work The division of labor in monitoring generally includes information collection and arrangement, monitoring plan preparation, monitoring point layout, sample collection and On-site analysis, sample laboratory analysis, data processing, monitoring report preparation, etc. The undertaking unit should organize according to the monitoring task Good division of responsibilities within the unit and between cooperating units. 5.5.2 Preparation for monitoring The preparation of monitoring work generally includes the division of labor, information collection, work plan preparation, and personal protection Equipment, site surveys, sampling equipment and containers and analytical instruments. 5.5.3 Implementation of monitoring work The implementation of monitoring work mainly includes the monitoring point layout, sample collection, sample analysis, and subsequent data processing. And report preparation. In general, the core of the implementation of monitoring work is spot sampling, so on-site spot sampling should be implemented in a timely manner. Relevant working conditions. In the process of sample collection, preparation, transportation and analysis, the necessary technology and management should be adopted Measures to ensure the safety protection of monitoring personnel.6 Monitoring point layout6.1 Monitoring point layout method 6.1.1 Soil monitoring point layout method Geographical location, plot boundaries, and work requirements at each stage determined based on the periodic conclusions of the survey of soil pollution in the plot Seek to determine the range of points. Mark the exact geographic location on the area map or plan map, draw plot boundaries, and Position the corners of the field accurately. Commonly used monitoring point layout methods for soil environment monitoring of the plot include systematic random distribution Method, system layout method and partition layout method, see Figure 1. Figure 1 Schematic diagram of monitoring point layout method 6.1.1.1 For the areas with similar soil characteristics and the same land use function in the plot, the system random distribution method can be used. Monitoring point layout. 1) The system random distribution method is to divide the monitoring area into several working units of equal area, from which random (random number To obtain a method that can be used to roll the dice, draw lots, and check the random number table, draw a certain number of work units, and A monitoring point is arranged in the unit. 2) The number of samples taken should be determined according to the area of the plot, the purpose of monitoring and the use of the plot. 6.1.1.2 If the soil pollution characteristics of the plot are unclear or the original condition of the plot is severely damaged, the system can be used for monitoring Point layout. The system layout method is to divide the monitoring area into several working units of equal area. A monitoring point. 6.1.1.3 For the parcels with different land use functions and obvious differences in pollution characteristics, the zoning method can be adopted. Monitoring point layout. 1) The zoning method is to divide the plot into different plots, and then determine the plots based on the plot area or pollution characteristics. method. 2) The division of land use functions within a plot is generally divided into production area, office area, and living area. In principle, the production area The division of units should be based on structures or production processes, including production workshops, raw materials and product storage, and wastewater And waste slag storage yard, material circulation road in the yard, underground storage structure and pipeline, etc. The office area includes office buildings, Fields, roads, green spaces, etc., living areas include canteens, dormitories and public buildings. 3) For production areas with similar land use functions and small unit areas, several units can also be combined into a single monitor. 作 UNIT. 6.1.1.4 Setting ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of HJ 25.2-2019_English be delivered?Answer: Upon your order, we will start to translate HJ 25.2-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. 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