Search result: HJ 25.1-2019 (HJ 25.1-2014 Older version)
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Technical guidelines for investigation on soil contamination of land for construction
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HJ 25.1-2019
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| HJ 25.1-2014 | English | 639 |
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Technical guidelines for environmental site investigation
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HJ 25.1-2014
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| HJ/T 25-1999 | English | 639 |
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Environmental quality risk assessment criteria for soil at manufacturing facilities
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HJ/T 25-1999
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| Standard ID | HJ 25.1-2019 (HJ25.1-2019) | | Description (Translated English) | Technical guidelines for investigation on 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 | 16,140 | | Date of Issue | 2019 | | Date of Implementation | 2019-12-05 |
HJ 25.1-2019
(Technical guidelines for surveying soil pollution on construction land)
National Environmental Protection Standard of the People's Republic of China
Replaces HJ 25.1-2014
Investigation of soil pollution on construction land
Technical guidelines
Technical guidelines for investigation on soil contamination of land for
construction
2019-12-5 release
2019-12-5 Implementation
Released by the Ministry of Ecology and Environment
Contents
Foreword ... ii
1 Scope ... 1
2 Normative references ... 1
3 Terms and definitions ... 1
4 Basic principles and working procedures ... 1
5 Investigation of soil pollution in the first stage ... 3
6 Investigation of soil pollution in the second stage ... 5
7 Survey of soil pollution in the third stage ... 8
8 Report preparation ... 8
Appendix A (Informative) Outline of Survey Report Preparation ... 10
Appendix B (informative) Common plots and characteristic pollutants ... 12
Foreword
According 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 supervision and management of construction land, and regulating the regulation of soil pollution on construction land
Check and develop this standard.
This standard specifies the principles, content, procedures and technical requirements for the investigation of soil pollution on construction land.
Appendix A and Appendix B of this standard are informative appendices.
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 "Technical Guidelines for Site Environmental Investigation" to "Technical Guidelines for Investigation of Soil Pollution on Construction Land"
then";
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 other standards-related content of normative references;
4. Deleted terms and definitions for "site" and "potentially contaminated site";
5. Removed the conditions for launching the third phase of the soil pollution survey and revised the work on the soil pollution survey
Content and procedure diagram;
6. Improved the requirements for testing items in the formulation of the sample analysis plan.
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 the Control and Remediation of Soil Pollution Risks on Construction Land" (HJ 25.2);
"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 Surveys (HJ 25.1-2014) are 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 are. Institute of Environmental Protection for Light Industry, Institute of Environmental Standards of the Ministry of Ecology and Environment,
Nanjing Institute of Environmental Sciences, Shanghai Institute of Environmental Sciences, and Shenyang Institute 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.
The interpretation of this standard is the responsibility of the Ministry of Ecology and Environment.
Technical guidelines for surveying soil pollution on construction land
1 Scope
This standard specifies the principles, content, procedures and technical requirements for the investigation of soil pollution on construction land.
This standard is applicable to the investigation of soil pollution status on construction land, and provides for the management and restoration of soil pollution risk on construction land.
Basic data and information.
This standard does not apply to the investigation of plots containing radioactive contamination.
2 Normative references
According to the characteristics of the plot and the characteristics of potential pollutants, a survey of the concentration and spatial distribution of the pollutants is conducted to provide the environment for the plot.
Management provides the basis.
4.1.2 Normative principles
Adopting a programmatic and systematic approach to standardize the investigation process of soil contamination, and ensure the scientific and objective investigation process
Observation.
4.1.3 Operational principles
Comprehensively consider factors such as survey methods, time, and funding, and combine current scientific and technological development and professional skills to make surveys
The process is practical.
4.2 Working Procedure
The investigation of soil pollution can be divided into three stages. The working procedure of the investigation is shown in Figure 1.
Investigation launched
Whether a second stage investigation is needed
Collection and analysis of on-site survey staff interview data
Result analysis
Develop a preliminary sampling analysis work plan
Live sampling
Data evaluation and analysis
Investigation of environmental characteristic parameters Investigation of receptor exposure parameters
Do you need detailed sampling and analysis
Develop a detailed sampling and analysis work plan
......
HJ 25.1-2014
Technical guidelines for environmental site investigation
People's Republic of China National Environmental Protection Standards
Replacing HJ/T 25-1999
Issued on.2014-02-19
2014-07-01 implementation
Issued by the Ministry of Environmental Protection
Table of Contents
Preface II
1. Scope ..1
2 Normative references ..1
3 Terms and Definitions .1
4 Basic Principles and procedures 1
5 The first phase of site environmental investigation .. 3
6 ..5 second phase of site environmental investigation
7 The third phase environmental site investigation ..7
8 of the report prepared ..8
Appendix A (informative) Outline of the investigation report prepared ..9
Annex B (informative) Common characteristics of pollutants and contaminated sites 11
Foreword
According to "People's Republic of China Environmental Protection Law", to protect the ecological environment, safeguarding human health, strengthen contaminated sites
Environmental supervision and management, regulate the site environmental investigation, the development of this standard.
This standard and contaminated sites belong to the following standard series of environmental standards.
"Site Environmental Monitoring Technical Guidelines" (HJ 25.2-2014);
"Contaminated Sites Risk Assessment Guidelines" (HJ 25.3-2014);
"Contaminated site soil remediation technology Guidelines" (HJ 25.4-2014).
From the date of implementation of the above standards, "Soil Environmental Quality Industrial Risk Evaluation Criteria" (HJ/T 25-1999)
Abolished.
This standard specifies the principles of environmental investigation of the site, content, procedures and technical requirements.
This standard is developed by the Ministry of Environmental Protection Science, Technology organization.
This standard is mainly drafted by. Environmental Protection Research Institute of Light Industry, the Ministry of Environmental Protection Standards Institute ENVIRONMENTAL PROTECTION
Nanjing Institute of Environmental Sciences care unit, the Shanghai Academy of Environmental Sciences, Shenyang Academy of Environmental Sciences.
This standard MEP February 19, 2014 for approval.
This standard from July 1, 2014 implementation.
This standard by the Ministry of Environmental Protection is responsible for interpretation.
Environmental Site Investigation Technical Guidelines
1 Scope
This standard specifies the principles of environmental site investigation of soil and groundwater, content, procedures and technical requirements.
This standard applies to environmental site investigation, provide the basic data and information for environmental management of contaminated sites.
This standard does not apply to radioactive contamination of the site investigation.
2 Normative references
The standard content of the following documents cited in the articles. For undated references, the effective version applies
To this standard.
GB 15618 Soil Environmental Quality Standards
GB/T 14848 groundwater quality standards
HJ/T 164 groundwater environmental monitoring technical specifications
HJ/T 166 soil environmental monitoring technical specifications
HJ 25.2 Site Environmental Monitoring Technical Guidelines
HJ 25.3 Contaminated Sites Risk Assessment Guidelines
HJ 25.4 contaminated site soil remediation guidelines
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1 site site
The total land within a certain range of soil, groundwater, surface water and land within all structures, facilities and biological
and.
3.2 potentially contaminated sites potential contaminated site
Means for engaging in production, management, processing and storage of toxic and hazardous substances, piling or potentially hazardous waste treatment and disposal, in order to
And engaged in mining activities such as pollution and the ecological environment on human health or pose a potential risk venues.
3.3 Environmental Site Investigation environmental site investigation
Methods A systematic investigation to determine whether the process of site contamination and pollution degree and scope.
3.4 sensitive target potential sensitive targets
It refers to the possibility of contaminated sites around the residential areas, schools, hospitals, drinking water source protection areas and important affected by contamination
Public places.
4 basic principles and procedures
4.1 Basic Principles
4.1.1 Targeted principle
Based on the characteristics and potential pollutant characteristics of the site, carry out investigation of spatial distribution and concentration of pollutants, the venue for the environment
Management provide the basis.
4.1.2 normative principles
Adoption procedures and systematic manner regulate environmental site investigation process to ensure scientific and objective investigation process
Sex.
4.1.3 operability principles
Comprehensive considerations survey methodology, time and money, combined with the current development of science and technology and professional skills, so that the investigation
Process feasible.
4.2 work program
Site environmental survey can be divided into three stages, the investigation procedures shown in Figure 1.
the first
stage
site
surroundings
survey
No need for second phase of the investigation
third
stage
site
surroundings
survey
Preliminary work to develop sampling and analysis plan
Site sampling
Data assessment and analysis
Sampling and analysis to develop a detailed work plan
Detailed sampling site
Data assessment and analysis
Site preparation of the Environmental Investigation Report
Site characterization parameter survey receptor exposure parameter survey
Data collection and analysis of field reconnaissance Interview
second
stage
site
surroundings
survey
The need for detailed sampling and analysis
Risk assessment needs to repair or
Work content and procedure 1 environmental site investigation
Start Survey
End Survey
Result analysis
4.2.1 The first phase of the Environmental Site Investigation
The first stage is a data collection site environmental investigation, site survey and interviewing personnel contamination identification, the original
It is not on-site sampling and analysis. If the first phase of the investigation confirmed that there was no possibility and historical venue and surrounding area of the current
Sources of pollution, environmental conditions considered acceptable site, investigations can end.
4.2.2 The second phase of the Environmental Site Investigation
4.2.2.1 The second phase of site environmental sampling and analytical investigation is based pollution confirmed stage, when the first phase of site conditions
Investigation showed that the venue or the existence of possible sources of contamination around the area, such as chemical plants, pesticide plants, refineries, gas stations, chemical
Chemical storage tanks, solid waste disposal facilities or activities may generate toxic and hazardous substances; and due to the lack of other raw materials
When the cause can not be excluded due to the presence of sources inside and outside the venue, as potential sites for the second phase of contaminated site environmental investigation,
Determine the types of pollutants, the concentration (degree) and spatial distribution.
4.2.2.2 The second phase environmental site investigation can usually be divided into a preliminary sampling and analysis and detailed sampling and analysis performed in two steps, each step
They include work plans, field sampling, data evaluation and analysis of the results and other steps. Preliminary sampling and analysis and detailed sampling
Analysis of the actual situation can implement in batches, to gradually reduce the uncertainty of the investigation.
4.2.2.3 According to the preliminary results of sampling and analysis, if not exceed the concentration of pollutants and other relevant national and local standards and clean
The concentration of the control point (with ambient background soil inorganic), and through uncertainty analysis confirmed that no further investigation
After the second phase of site environmental survey work can be completed, or that the potential environmental risks shall be adjusted in detail
check. Standard does not involve pollutants can be integrated judgment based on professional knowledge and experience. Detailed sampling and analysis in the early
Based on the analysis of the sampling step further sampling and analysis to determine the degree and extent of site contamination.
4.2.3 Phase III Environmental Site Investigation
If the need for a risk assessment or Remediation, will carry out the third phase of site environmental investigation. The third stage venue
Environmental surveys to supplement the main sampling and testing, risk assessment and met soil and groundwater remediation desired parameter. this
The investigation phase may be carried out separately, can also be carried out simultaneously in the second phase of the investigation process.
5 The first phase of site environmental investigation
5.1 Data collection and analysis
5.1.1 Data Collection
Including. site use change data, environmental information site, site-related records related to government documents, as well as
Site where nature and society of the region. When the survey site and adjacent to the site of the existence of cross-contamination may be necessary to investigate
Adjacent sites relevant records and information.
5.1.1.1 Change of venue use of information, including. identification of the site and adjacent to the development site and activity status of aerial or satellite
Star Pictures, site planning and land-use data, other contaminated sites help evaluate historical data, such as land registration
Information and so on. Change of venue use in the process of building sites, facilities, production process and pollution situation changes
condition.
5.1.1.2 Site environmental information include. site soil and groundwater pollution recorded sites and hazardous waste dumps recording venue
Positional relationship between nature reserves and protected areas of water sources and the like.
5.1.1.3 venue related records include. products, raw and auxiliary materials and intermediate list, floor plan, process flow diagrams, ground
With the line chart, the list of chemicals storage and use, disclosure records, waste management record, a list of ground and underground storage tanks, ring
Environmental monitoring data, environmental impact report or table, environmental audit reports and reports of Geological Prospecting.
5.1.1.4 by the government and authorities of the save, and publish environmental information, such as regional planning and environmental protection, environmental quality
Announcement, enterprises and government departments to record relevant environmental approval and water source protection areas and ecological planning.
Natural and social information 5.1.1.5 Area venues including. natural information including location maps, topography, soil
Soil, hydrological, geological and meteorological data; social information including population density and distribution, the distribution of sensitive targets, and land Lee
In a way, the regional economic situation and location development planning, relevant national and local policies, regulations and standards, and
Local endemic diseases statistics.
5.1.2 Data Analysis
Investigators should be based on the expertise and experience to identify data errors and unreasonable information, such as the impact of missing data
Judging site pollution conditions shall be stated in the report.
5.2 site visit
5.2.1 Security preparations
Before the site visit, according to the specific circumstances of the site master the relevant knowledge of safety and health protection, and equipped with the necessary proof
Nursing supplies.
5.2.2 site reconnaissance range
In the main venue, and should include the area around the venue, the scope of the area around the site shall be unclean according to investigators
Pollutants may migrate to judge distance.
5.2.3 The main content of the site visit
Site visit of the main contents include. status and history of the site, adjacent to the site of the current situation and historical circumstances, Zhou
Situation and historical circumstances, regional geology, hydrogeology and described the terrain around the area and so on.
5.2.3.1 Status and history of the site. may cause soil and groundwater contamination substance use, production, storage, three
Waste treatment and disposal as well as leak condition may result in the use of the site in the past left traces of soil and groundwater contamination abnormal
Like, such as tanks, tank leakage and waste temporary stacking signs of contamination.
5.2.3.2 Status adjacent sites and historical circumstances. the use of the site adjacent to the current situation and sources, used in the past and left
It may cause abnormal signs of soil and groundwater contamination, such as tanks, tank leakage and waste temporary stacking signs of contamination.
5.2.3.3 Status and history of the surrounding area. the current or past land use types surrounding areas, such as residential,
Shops and factories should be possible to observe and record; waste and all kinds of wells in use around the region, such as wells, etc.;
Sewage treatment and disposal systems; chemicals and waste storage and disposal facilities; on the ground ditch, river, pond; surface water
Body, stormwater drainage and runoff and roads and utilities.
5.2.3.4 geology, hydrogeology and topography description. Geological site and its surrounding area, hydrogeology and topography shall outlook
Police, recorded and analyzed to help determine whether contaminants could migrate around to survey the site, as well as the venue pollution
And groundwater from migrating outside the venue.
5.2.4 site visit focused
Key reconnaissance objects should normally include. the use of hazardous substances, handling, storage and disposal; and set up the production process
Equipment, tanks and pipelines; odor, chemical taste Road and irritating odor, pollution and signs of corrosion; drain or drainage, sewage
Pool or other body of surface water, waste dumps, the wells.
It should also be observed and recorded whether the venues and around the likely affected by contamination of residential areas, schools, hospitals, drinking
Water source protection areas and other public places, and to clarify its position in relation to the site reports.
5.2.5 site survey method
Through the identification of abnormal odor, photography and photography, field notes, etc. preliminary judging site contamination situation.
During reconnaissance, can be used for rapid determination of the instrument.
5.3 Interview
5.3.1 Interviews
It should include data collection and site survey questions involved, as well as research and information supplement existing data.
5.3.2 interviewees
Respondents to the venue or historical status of insiders, should include. site management agencies and local government officials, environmental
Officials protection administrative department, site of past and present users of each stage, as well as site location or familiar space
Third parties, such as the staff and residents of adjacent sites nearby.
5.3.3 Method Interview
Can be taken face to face communication, telephone communication, written or electronic questionnaires and other ways.
5.3.4 organize content
Response interview to organize and control the existing data, suspicious of them and at the perfect place to verify and complement
Charge, as an annex to the investigation report.
5.4 Conclusion and Analysis
At this stage the findings should be made clear whether the area around the venue and possible sources of contamination, and uncertainty analysis.
If possible sources of contamination, should indicate the type of possible contamination, pollution situation and sources, and should make the second stage venues ring
Recommendations throughout the investigation.
6 The second phase Environmental Site Investigation
6.1 Preliminary work sampling and analysis plan
Preliminary work to develop sampling and analysis plan based on the first phase of site environmental investigation, including verification of the existing letter
Interest, to determine the distribution of pollutants may develop sampling program to develop health and safety programs and develop analytical sample
Case and determine the quality assurance and quality control procedures and other tasks.
6.1.1 Verification existing information
Verification of existing information, including the first phase of site environmental investigation in important environmental information, such as soil type and
Now possible distribution and migration of contaminants in soil, groundwater, surface water or the environment around the site in the letter; groundwater table
Interest rates; access to information leakage and pollutant emissions. You should verify the above sources of information, to ensure its authenticity and applicability.
6.1.2 may determine the distribution of pollutants
Depending on site conditions, the distribution of sources inside and outside the venue, hydrogeological conditions and contaminant migration and transfer
Of other factors, to determine the site contaminants may be distributed in the soil and groundwater, and provide the basis for the development of the sampling program.
6.1.3 develop sampling scheme
Sampling programs generally include. acquisition method laid sampling points, the number of samples, sample site rapid testing party
Method, sample collection, preservation, transportation and storage requirements.
Layout 6.1.3.1 sampling points in the horizontal direction with reference to Table 1, and shall state the sampling points laid the grounds, see the specific HJ
25.2.
Table 1 several common distribution method and applicable conditions
Distribution method applicable conditions
Systematic random distribution method is suitable for a uniform distribution of contaminated sites.
Professional judgment method is suitable for distribution of potentially contaminated sites clear.
Zoning distribution method is suitable for the uneven distribution of pollution, contamination distribution and access site.
System distribution method applicable to all types of venues, especially the distribution of pollution or contamination is not clear distribution of a wide range of situations.
6.1.3.2 sampling points in the vertical direction of soil sampling depth depending on the location of the sources of pollution, migration and formation structure and hydrogeological
Quality and other settings judgment. If the lack of understanding of the site information, it is difficult to judge reasonable sampling depth, spacing, etc. can be 0.5-2 meters
Set the sampling location.
6.1.3.3 For groundwater, under normal circumstances should be near the site selection survey control points clean. Laid groundwater sampling points
You should consider the groundwater flow, hydraulic gradient, aquifer permeability, depth and thickness and hydrogeological conditions and pollution
Migration and transformation of pollutants and other factors; for existing groundwater monitoring wells within or adjacent to the site within the region, if they meet the groundwater
Environmental monitoring technical specifications, can be used as groundwater sampling points or control points.
6.1.4 to develop health and safety plan
According to relevant laws and regulations and the actual situation of the work site, the development of the site investigators health and safety count
Draw.
6.1.5 development of sample analysis program
Test items should be based on conservative principles, both inside and outside the venue in accordance with the first phase of the investigation to determine the potential sources of pollution and contamination
Matter, taking into account the migration and transformation of pollutants, whether the detection of a sample analysis item; can not be determined for the project, optional
Take a typical sample contamination potential screening analysis. General industrial sites selectable test items are. heavy metals, volatile
Organics, semi-volatile organic compounds, cyanide and asbestos. Such as soil and groundwater was normal and no routine testing project
When France recognized biological toxicity test method can be used to filter judge.
6.1.6 Quality Assurance and Quality Control
On-site quality assurance and quality control measures should include. to prevent sample contamination procedures, transport blank sample analysis,
Scene repeated sample analysis, sampling equipment clean blank sample analysis, sampling media impact analysis, as well as to protect the sample analysis results
Kept in a manner and time to analyze the results of the impact analysis, see in particular HJ 25.2. Quality assurance and quality laboratory analysis
Specific requirements for control, see HJ/T 164 and HJ/T 166.
6.2 detailed work plan for sampling and analysis
Sampling and analysis to develop a detailed work plan on the basis of preliminary sampling and analysis. Detailed sampling and analysis plan major work packages
Comprising. a preliminary assessment of the work plan and the results of sampling and analysis, the development of the sampling program, and the development of sample analysis programs. detailed
Monitoring the course of the investigation in accordance with the technical requirements of the implementation of the provisions HJ 25.2.
6.2.1 Preliminary assessment of the results of the sampling analysis
Preliminary analysis of the sampling site access to information, including soil type, hydrogeological conditions, field and laboratory tests
Initially identified types of pollutants, the extent and spati......
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