SL 286-2003 Guidelines for the evaluation of groundwater overexploitation areas
Some standard content:
ICS 13.060.10
Water Industry Standard of the People's Republic of China
SL286—2003
Guidelines for the assessment of zones of groundwater overexploitation
ofgroundwateroverdraft
Published on 2003-05-12
Ministry of Water Resources of the People's Republic of China
Implemented on 2003-08-01
Ministry of Water Resources of the People's Republic of China
Notice on the approval and issuance of "Guidelines for the Evaluation of Groundwater Overexploitation Areas" SL286-2003
Shuiguoke [2003] No. 198
All units directly under the Ministry, water resources (water affairs) departments (bureaus) of provinces, autonomous regions and municipalities directly under the Central Government, water resources (water affairs) bureaus of cities with independent planning status, and water resources bureau of Xinjiang Production and Construction Corps: After review, "Guidelines for the Evaluation of Groundwater Overexploitation Areas" is approved as a water conservancy industry standard and is hereby issued. The standard number is SL286-2003. This standard shall be implemented on August 1, 2003. The standard text is published and distributed by China Water Resources and Hydropower Press. May 12, 2003
The main basis for the compilation of the "Guidelines for the Evaluation of Groundwater Overexploitation Areas" SL286-2003 is the "Regulations on the Compilation of Water Conservancy Technical Standards" (SL12002) issued by the Ministry of Water Resources on January 15, 2003.
The "Guidelines for the Evaluation of Groundwater Overexploitation Areas" has 4 chapters and 5 appendices. Its main contents include: general principles, delineation, classification and grading of groundwater overexploitation areas, dynamic monitoring, investigation and evaluation and data compilation of groundwater overexploitation areas. This guideline has detailed technical regulations for the delineation of groundwater overexploitation areas, classification and grading of groundwater overexploitation areas, and implementation of dynamic monitoring, investigation and evaluation and data compilation in groundwater overexploitation areas.
This guideline is recommended in its entirety.
Approval department of this guideline: Ministry of Water Resources of the People's Republic of China Host organization of this guideline: Water Resources Department of Ministry of Water Resources Interpretation unit of this guideline: Water Resources Department of Ministry of Water Resources Chief editor of this guideline: General Affairs Bureau of Ministry of Water Resources Participating unit of this guideline: Tianjin Water Resources and Hydropower Survey and Design Institute of Ministry of Water Resources Publishing and issuing unit of this guideline: China Water Resources and Hydropower Press Main drafters of this guideline: Guo Mengzhuo Wan Yusheng Yan Yong Yang Jingbin Wen Renxuexing Jin Ding Zhang Hongxing Gao Juan
Technical person in charge of the review meeting of this guideline: Zhang Weicha Reviewer of the format of this guideline: Cheng Guangming General provisions
Delineation, classification and classification of groundwater over-exploitation areas 2.1 Delineation of groundwater over-exploitation areas
2.2 Classification of groundwater over-exploitation areas
2.3 Classification of groundwater over-exploitation areas
3 Dynamic monitoring of groundwater over-exploitation areas 3.1 Dynamic monitoring and investigation of groundwater over-exploitation areas 3.2 Evaluation of groundwater over-exploitation areas
4 Data compilation
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Numbering of groundwater over-exploitation areas
Table format and filling instructions
Instructions for preparation of results map
Outline for writing results report
Explanation of terms used in this guideline
Explanation of clauses
1 General provisions
1.0.1 In accordance with the relevant provisions of the "Water Law of the People's Republic of China", this guideline is specially formulated to promote the rational development and utilization of groundwater resources, effectively protect them, strengthen the monitoring, investigation and evaluation of groundwater over-exploitation areas, and unify relevant technical requirements. 1.0.2 This guideline applies to: demarcation of groundwater overexploitation areas, classification and grading of groundwater overexploitation areas, dynamic monitoring, investigation, evaluation and data compilation of groundwater overexploitation areas.
1.0.3 The technical requirements for hydrogeological surveys, groundwater resource evaluation, geodetic height measurement, groundwater level and water quality monitoring related to the evaluation of groundwater overexploitation areas shall comply with the provisions of the relevant national standards in force in addition to the requirements of this guideline. 1.0.4 This guideline adopts the relevant terms given in the National Standard "Hydrological Survey Terms and Symbols Standard" (GB/T95-86). In addition, the terms given in Appendix A shall also be used. 1.0.5 Under the principle of not conflicting with this guideline, local governments may formulate necessary supplementary regulations or implementation opinions based on actual conditions. 1
2 Delineation, classification and grading of groundwater overexploitation areas 2.1 Delineation of groundwater overexploitation areas
2.1.1 The amount of groundwater extracted exceeds the exploitable amount, causing the groundwater level to continue to drop, or the development and utilization of groundwater triggers environmental geological disasters or ecological environment deterioration, which are the basis for determining groundwater overexploitation and delineating groundwater overexploitation areas. 2.1.2 The following work procedures should be followed in delineating groundwater over-exploitation areas: 1. On the basis of fully collecting and analyzing the regional geological structure and groundwater recharge, runoff and discharge conditions, determine the stratigraphic position, thickness, lithological characteristics, regional distribution and groundwater type of the target aquifer group for groundwater development and utilization, and determine the groundwater extraction volume, groundwater recharge base and exploitable groundwater volume: 2. Analyze and determine the dynamic characteristics of groundwater levels in each target aquifer group for groundwater development and utilization during the period of groundwater development and utilization: 3. Investigate the status of environmental geological disasters or ecological environmental deterioration caused by groundwater development and utilization, and determine the geographical distribution of various environmental geological disasters or ecological environmental deterioration phenomena;
4. Delineate groundwater over-exploitation areas.
2.1.3 For the same groundwater development and utilization target aquifer group, if the groundwater level continues to decline or environmental geological disasters or ecological environment deterioration occur during the development and utilization period, the area shall be delineated as the groundwater over-exploitation area of the groundwater development and utilization target aquifer group during the groundwater development and utilization period, and the regional distribution boundary line of the groundwater over-exploitation area shall be drawn.
2.1.4 The larger area enclosed by the following two boundary lines shall be determined as the regional distribution boundary line of the groundwater over-exploitation area:
1 The outer envelope of the area where the groundwater level continues to decline: 2 The outer envelope of the area where environmental geological disasters or ecological environment deterioration occur due to the development and utilization of groundwater. Among them, the famous spring that needs to be protected has experienced spring flow attenuation, and the boundary line is the corresponding spring area of the spring. 2
2.1.5 In the deep confined water over-exploitation area, the urban built-up areas of each city and its planning area and the concentrated exploitation area of deep confined water sources with a daily exploitation volume of more than 50,000 m\ should be divided separately.
2.2 Classification of groundwater over-exploitation areasbzxz.net
2.2.1 According to the groundwater type of the target aquifer group for groundwater development and utilization, the groundwater over-exploitation area is divided into the following three categories:
fracture water over-exploitation area;
2 karst water over-exploitation area;
3 porous water over-exploitation area.
2.2.2 According to the burial characteristics of general bedrock and carbonate rock, the fracture water over-exploitation area and karst water over-exploitation area are divided into two types: exposed type and concealed type. 2.2.3 Based on the characteristics of the vertical stratification of the loose rock and soil aquifer groups, the order from top to bottom, and whether the groundwater is confined or not, the porous water over-exploitation area is divided into two types: shallow groundwater over-exploitation area and deep confined permanent over-exploitation area. Among them, the deep confined water over-exploitation area should indicate the order of the target aquifer group for groundwater development and utilization. 2.2.4 The names of various groundwater over-exploitation areas should be determined according to the names of the capitals above the main county-level administrative regions where the groundwater over-exploitation areas are located and the provisions of 2.2.1 to 2.2.3 of this guideline. 2.2.5 The groundwater over-exploitation areas should be uniformly numbered, and the numbering of groundwater over-exploitation areas should be implemented in accordance with Appendix B.
2.2.6 Groundwater over-exploitation areas with the same name are independent units for groundwater over-exploitation area evaluation.
2.2.7 When two or more groundwater over-exploitation areas exist in the same area at the same time, their names and regional distribution boundaries should be determined separately, and groundwater over-exploitation area evaluation should be carried out separately.
2.3 Classification of groundwater overexploitation areas
2.3.1 Groundwater overexploitation areas should be divided into the following four levels according to their size:
1 Groundwater overexploitation areas with an area of not less than 5000km2 are extra-large groundwater overexploitation areas;
2 Groundwater overexploitation areas with an area of less than 5000km2 and not less than 1000km2 are large groundwater overexploitation areas;
3 Groundwater overexploitation areas with an area of less than 1000km2 and not less than 100km2 are medium-sized groundwater overexploitation areas;
4 Groundwater overexploitation areas with an area of less than 100km2 are small groundwater overexploitation areas. 2.3.2 Based on the annual average groundwater level decline rate, annual average groundwater overexploitation coefficient, and the degree of environmental geological disasters or ecological environment deterioration in the groundwater overexploitation area during the development and utilization period, the groundwater overexploitation areas at all levels should be divided into general overexploitation areas and severe overexploitation areas, and no-exploitation areas should be divided in the severe overexploitation areas. 2.3.3. In the shallow groundwater over-exploitation areas, fissure water over-exploitation areas and karst water over-exploitation areas at all levels, the areas that meet one of the following conditions are determined as serious over-exploitation areas: 1. The annual average groundwater over-exploitation coefficient is greater than 0.3; 2. The annual average groundwater level drop rate of pore water is greater than 1.0m, and the annual average groundwater level drop rate of fissure water or karst water is greater than 1.5m; 3. The annual average spring flow attenuation rate of famous springs that need to be protected is greater than 0.1; 4. Ground collapse has occurred, and the annual average number of ground collapse points per 100km2 area is more than 2, or the annual average number of ground collapse points with a volume of collapsed rock and soil greater than 2m* is more than 1; 5. Ground fissures, and there are more than 2 ground fissures per 100km2 per year, or more than 1 ground fissure with a length greater than 10m, a surface tear width greater than 5cm, and a depth greater than 0.5m per year;
6 Groundwater pollution has occurred, and the quality of the polluted groundwater is worse than that before pollution by one grade or more, or the polluted groundwater can no longer meet the quality requirements for drinking water;
7 Seawater intrusion has occurred due to the development and utilization of groundwater; Saltwater intrusion has occurred due to the development and utilization of groundwater; 8
Sandification of the raw land has occurred due to the development and utilization of groundwater. In the over-exploitation areas of deep confined water at all levels, the areas that meet one of the following conditions are determined as serious over-exploitation areas in 2.3.4:
1 The annual average groundwater level continuous decline rate is greater than 2m; 4
2 The annual average land subsidence rate is greater than 10mm;
3 Groundwater pollution has occurred, and the quality of the polluted groundwater is worse than that of the pollution before the pollution by one category or more, or the polluted groundwater can no longer meet the water quality requirements for drinking water.
2.3.5 In the groundwater over-exploitation areas, the areas that do not meet the requirements of 2.3.3 and 2.3.4 of this guideline are determined as general over-exploitation areas.
2.3.6 In areas of serious groundwater overexploitation, areas that meet one of the following conditions shall be identified as prohibited areas:
1 The shallow groundwater level is lower than 4/5 of the thickness of the corresponding target aquifer group for groundwater development and utilization;
2 The cumulative attenuation rate of the flow of famous springs that need to be protected is greater than 0.6, or the average annual cumulative cessation of gushing time is more than 100 days;
3 The average annual number of ground collapse points per 100km2 area is more than 10, or the average annual number of ground collapse points with a rock and soil volume greater than 2m\ per 100km2 area is more than 10. 5; more than 10 ground fissures per year on an area of 4100km2, or more than 5 ground fissures with a length of more than 10m, a surface tear width of more than 5cm, and a depth of more than 0.5m per year;
seawater intrusion causes the chloride ion content of groundwater to be greater than 1000mg/L: 6
saltwater intrusion causes the groundwater mineralization to be greater than 3000mg/L; wilderness barrenness causes the vegetation coverage rate to decrease by more than 50%; the quality of polluted groundwater has reached Class V water; the maximum cumulative ground subsidence is greater than 2000mm. The annual average groundwater level continuous decline rate in the groundwater over-exploitation area can be calculated according to formula (2.3.7):
where: annual average groundwater level continuous decline rate (m/a): H - groundwater level at the beginning of the groundwater development and utilization period (m); H - + groundwater level at the end of the groundwater development and utilization period (m); T - number of years in the groundwater development and utilization period (a). (2.3.7)
The annual average groundwater overexploitation coefficient in the groundwater overexploitation zone can be calculated according to formula (2.3.8):
Q可班
Q可开
Wherein, the annual average groundwater overexploitation coefficient:
Q可开1 groundwater development and utilization period annual average groundwater extraction volume (10,000 tn\); Q可开1 groundwater development and utilization period annual average groundwater exploitable volume (10,000 m3).
The annual average land subsidence rate can be calculated according to formula (2.3.9):2.3.9
Wherein, V视—annual average land subsidence rate (mm/a); At—time period (a);
Ah—ground subsidence volume in a time period of △t (mm). The annual average spring water flow rate attenuation rate can be calculated according to formula (2.3.10): 2.3.10
Q泉t，-Q桌tg
U桌= Q,(tz - t1)
Wherein, V豪
Q泉ta
The annual average spring water flow rate attenuation rate during t1～t; the annual average spring water flow rate in year t (m*/s);
the annual average spring water flow rate in year t? (m/s);
the initial calculation year;
the final calculation year.
2.3.11 The category of groundwater quality should be determined by the single index method in reference to the national standard "Groundwater Quality Standard" (GB/T14848-93), and the concentration limit value between Class I water and Class IV water in the standard should be used as the standard value for judging compliance with drinking water and as the control standard for calculating the excess rate.
2.3.12 It is required to fill in the basic situation table of groundwater overexploitation areas (see Table C.1.1 in Appendix C for the table format and C.2 in Appendix C for filling instructions). 6
3 Dynamic monitoring, investigation and evaluation of groundwater overexploitation areas 3.1 Dynamic monitoring and investigation of groundwater overexploitation areas 3.1.1 The dynamic monitoring area shall be determined according to the scope of the groundwater overexploitation area, and dynamic monitoring and investigation shall be carried out in the dynamic monitoring area.
3.1.2 The dynamic monitoring area of the shallow groundwater overexploitation area shall be delineated in accordance with the following principles: 1 The area enclosed by the geographical distribution boundary line of the groundwater overexploitation area with a distance of not less than 5 km shall be delineated as the dynamic monitoring area of the groundwater overexploitation area; 2 When the distance between the geographical distribution boundary line of the groundwater overexploitation area and the boundary line of the corresponding groundwater development and utilization self-target aquifer group is not more than 5 km, the boundary line of the groundwater development and utilization target aquifer group shall be used as the basis for delineating the dynamic monitoring area of the groundwater overexploitation area;
3 When the geographical distribution boundary lines of two adjacent groundwater overexploitation areas belonging to the same groundwater development and utilization target aquifer group are not more than 10 km apart, the midline between the geographical distribution boundary lines of the two groundwater overexploitation areas shall be used as the basis for delineating the dynamic monitoring area of the two groundwater overexploitation areas. 3.1.3 In the fissure water overexploitation area and karst water overexploitation area, the groundwater exploitation area therein shall be determined as the dynamic monitoring area.
3.1.4 The urban built-up areas and planning areas of each city in the deep confined water over-exploitation area and the deep confined water sources with a daily extraction base of more than 5 cubic meters should be concentrated and demarcated as the dynamic monitoring area of the deep confined water over-exploitation area. 3.1.5 The names and numbers of the dynamic monitoring areas are the same as those of the corresponding groundwater over-exploitation areas. It is required to draw a distribution map of the dynamic monitoring areas of the groundwater over-exploitation areas (see Appendix D for map preparation instructions). 3.1.6 In the dynamic monitoring area of the groundwater over-exploitation area, dynamic monitoring and investigation should include the following contents:
1 Groundwater level monitoring;
2 Groundwater diversion monitoring, artificial recharge water volume and water quality investigation; 3 Monitoring of the flow rate of famous springs that need to be protected: 76. Or the annual cumulative cessation time of gushing is more than 100 days;
There are more than 10 ground collapse points per 3100km2 area, or more than 5 ground collapse points with rock and soil volume greater than 2m\ per 100km2 area; there are more than 10 ground fissures per year per 4100km2 area, or more than 5 ground fissures with a length greater than 10m, a surface tear width greater than 5cm, and a depth greater than 0.5m per year;
Seawater intrusion causes the chloride ion content of groundwater to be greater than 1000mg/L: 6
Saltwater intrusion causes the groundwater mineralization to be greater than 3000mg/L; the wilderness is barren, causing the vegetation coverage rate to decrease by more than 50%; the quality of the polluted groundwater has reached Class V water; the maximum cumulative ground settlement is greater than 2000mm. The annual average groundwater level continuous decline rate in the groundwater overexploitation area can be calculated according to formula (2.3.7):
Wherein, the annual average groundwater level continuous decline rate (m/a): H-groundwater level at the beginning of the groundwater development and utilization period (m); H-groundwater level at the end of the groundwater development and utilization period (m); T-number of years in the groundwater development and utilization period (a). (2.3.7)
The annual average groundwater overexploitation coefficient in the groundwater overexploitation area can be calculated according to formula (2.3.8):
Q can be opened
Q can be opened
Wherein, the annual average groundwater overexploitation coefficient:
Q can be opened during the groundwater development and utilization period (10,000 tn\); Q can be opened during the groundwater development and utilization period. The annual average groundwater exploitation volume (10,000 m)
The annual average land subsidence rate can be calculated according to formula (2.3.9): 2.3.9
Wherein V视—annual average land subsidence rate (mm/a); At—time period (a);
Ah—ground subsidence in the time period △t (mm). The annual average spring water flow attenuation rate can be calculated according to formula (2.3.10): 2.3.10
Q泉t，—Q桌tg
U桌= Q,(tz - t1)
Wherein V豪
Q泉ta
The annual average spring water flow attenuation rate during t1～t; The annual average spring water flow in year t (m*/s);
The annual average spring water flow in year t? (m/s);
The initial calculation year;
The final calculation year.
2.3.11 The category of groundwater quality should be determined by single index method in reference to the national standard "Groundwater Quality Standard" (GB/T14848-93), and the concentration boundary value between Class I water and Class IV water in the standard should be used as the standard value for judging compliance with drinking water and as the control standard for calculating the excess rate.
2.3.12 It is required to fill in a basic situation table of groundwater overexploitation areas (see Table C.1.1 in Appendix C for the table format and C.2 in Appendix C for filling instructions). 6
3 Dynamic monitoring, investigation and evaluation of groundwater overexploitation areas 3.1 Dynamic monitoring and investigation of groundwater overexploitation areas 3.1.1 Determine the dynamic monitoring area based on the scope of the groundwater overexploitation area, and carry out dynamic monitoring and investigation in the dynamic monitoring area.
3.1.2 The dynamic monitoring area of the shallow groundwater overexploitation area shall be delineated in accordance with the following principles: 1 The area enclosed by the geographical distribution boundary line of the groundwater overexploitation area with a distance of not less than 5 km shall be delineated as the dynamic monitoring area of the groundwater overexploitation area; 2 When the distance between the geographical distribution boundary line of the groundwater overexploitation area and the boundary line of the corresponding groundwater development and utilization self-target aquifer group is not more than 5 km, the boundary line of the groundwater development and utilization target aquifer group shall be used as the basis for delineating the dynamic monitoring area of the groundwater overexploitation area;
3 When the geographical distribution boundary lines of two adjacent groundwater overexploitation areas belonging to the same groundwater development and utilization target aquifer group are not more than 10 km apart, the midline between the geographical distribution boundary lines of the two groundwater overexploitation areas shall be used as the basis for delineating the dynamic monitoring area of the two groundwater overexploitation areas. 3.1.3 In the fissure water overexploitation area and karst water overexploitation area, the groundwater exploitation area therein shall be determined as the dynamic monitoring area.
3.1.4 The urban built-up areas and planning areas of each city in the deep confined water over-exploitation area and the deep confined water sources with a daily extraction base of more than 5 cubic meters should be concentrated and demarcated as the dynamic monitoring area of the deep confined water over-exploitation area. 3.1.5 The names and numbers of the dynamic monitoring areas are the same as those of the corresponding groundwater over-exploitation areas. It is required to draw a distribution map of the dynamic monitoring areas of the groundwater over-exploitation areas (see Appendix D for map preparation instructions). 3.1.6 In the dynamic monitoring area of the groundwater over-exploitation area, dynamic monitoring and investigation should include the following contents:
1 Groundwater level monitoring;
2 Groundwater diversion monitoring, artificial recharge water volume and water quality investigation; 3 Monitoring of the flow rate of famous springs that need to be protected: 76. Or the annual cumulative cessation time of gushing is more than 100 days;
There are more than 10 ground collapse points per 3100km2 area, or more than 5 ground collapse points with rock and soil volume greater than 2m\ per 100km2 area; there are more than 10 ground fissures per year per 4100km2 area, or more than 5 ground fissures with a length greater than 10m, a surface tear width greater than 5cm, and a depth greater than 0.5m per year;
Seawater intrusion causes the chloride ion content of groundwater to be greater than 1000mg/L: 6
Saltwater intrusion causes the groundwater mineralization to be greater than 3000mg/L; the wilderness is barren, causing the vegetation coverage rate to decrease by more than 50%; the quality of the polluted groundwater has reached Class V water; the maximum cumulative ground settlement is greater than 2000mm. The annual average groundwater level continuous decline rate in the groundwater overexploitation area can be calculated according to formula (2.3.7):
Wherein, the annual average groundwater level continuous decline rate (m/a): H-groundwater level at the beginning of the groundwater development and utilization period (m); H-groundwater level at the end of the groundwater development and utilization period (m); T-number of years in the groundwater development and utilization period (a). (2.3.7)
The annual average groundwater overexploitation coefficient in the groundwater overexploitation area can be calculated according to formula (2.3.8):
Q can be opened
Q can be opened
Wherein, the annual average groundwater overexploitation coefficient:
Q can be opened during the groundwater development and utilization period (10,000 tn\); Q can be opened during the groundwater development and utilization period. The annual average groundwater exploitation volume (10,000 m)
The annual average land subsidence rate can be calculated according to formula (2.3.9): 2.3.9
Wherein V视—annual average land subsidence rate (mm/a); At—time period (a);
Ah—ground subsidence in the time period △t (mm). The annual average spring water flow attenuation rate can be calculated according to formula (2.3.10): 2.3.10
Q泉t，—Q桌tg
U桌= Q,(tz - t1)
Wherein V豪
Q泉ta
The annual average spring water flow attenuation rate during t1～t; The annual average spring water flow in year t (m*/s);
The annual average spring water flow in year t? (m/s);
The initial calculation year;
The final calculation year.
2.3.11 The category of groundwater quality should be determined by single index method in reference to the national standard "Groundwater Quality Standard" (GB/T14848-93), and the concentration boundary value between Class I water and Class IV water in the standard should be used as the standard value for judging compliance with drinking water and as the control standard for calculating the excess rate.
2.3.12 It is required to fill in a basic situation table of groundwater overexploitation areas (see Table C.1.1 in Appendix C for the table format and C.2 in Appendix C for filling instructions). 6
3 Dynamic monitoring, investigation and evaluation of groundwater overexploitation areas 3.1 Dynamic monitoring and investigation of groundwater overexploitation areas 3.1.1 Determine the dynamic monitoring area based on the scope of the groundwater overexploitation area, and carry out dynamic monitoring and investigation in the dynamic monitoring area.
3.1.2 The dynamic monitoring area of the shallow groundwater overexploitation area shall be delineated in accordance with the following principles: 1 The area enclosed by the geographical distribution boundary line of the groundwater overexploitation area with a distance of not less than 5 km shall be delineated as the dynamic monitoring area of the groundwater overexploitation area; 2 When the distance between the geographical distribution boundary line of the groundwater overexploitation area and the boundary line of the corresponding groundwater development and utilization self-target aquifer group is not more than 5 km, the boundary line of the groundwater development and utilization target aquifer group shall be used as the basis for delineating the dynamic monitoring area of the groundwater overexploitation area;
3 When the geographical distribution boundary lines of two adjacent groundwater overexploitation areas belonging to the same groundwater development and utilization target aquifer group are not more than 10 km apart, the midline between the geographical distribution boundary lines of the two groundwater overexploitation areas shall be used as the basis for delineating the dynamic monitoring area of the two groundwater overexploitation areas. 3.1.3 In the fissure water overexploitation area and karst water overexploitation area, the groundwater exploitation area therein shall be determined as the dynamic monitoring area.
3.1.4 The urban built-up areas and planning areas of each city in the deep confined water over-exploitation area and the deep confined water sources with a daily extraction base of more than 5 cubic meters should be concentrated and demarcated as the dynamic monitoring area of the deep confined water over-exploitation area. 3.1.5 The names and numbers of the dynamic monitoring areas are the same as those of the corresponding groundwater over-exploitation areas. It is required to draw a distribution map of the dynamic monitoring areas of the groundwater over-exploitation areas (see Appendix D for map preparation instructions). 3.1.6 In the dynamic monitoring area of the groundwater over-exploitation area, dynamic monitoring and investigation should include the following contents:
1 Groundwater level monitoring;
2 Groundwater diversion monitoring, artificial recharge water volume and water quality investigation; 3 Monitoring of the flow rate of famous springs that need to be protected: 73 In the fissure water over-exploitation area and karst water over-exploitation area, the groundwater exploitation area shall be identified as the dynamic monitoring area.
3.1.4 The urban built-up areas and their planning areas of each city in the deep confined water over-exploitation area and the deep confined water source areas with a daily exploitation base greater than 5 cubic meters shall be concentrated and designated as the dynamic monitoring area of the deep confined water over-exploitation area. 3.1.5 The names and numbers of the dynamic monitoring areas are the same as those of the corresponding groundwater over-exploitation areas. It is required to draw a distribution map of the dynamic monitoring areas of the groundwater over-exploitation areas (see Appendix D for map preparation instructions). 3.1.6 In the dynamic monitoring area of the groundwater over-exploitation area, dynamic monitoring and investigation shall include the following contents:
1 Groundwater level monitoring;
2 Groundwater opening volume monitoring, artificial recharge water volume and water quality investigation; 3 Monitoring of the flow rate of famous springs that need to be protected: 73 In the fissure water over-exploitation area and karst water over-exploitation area, the groundwater exploitation area shall be identified as the dynamic monitoring area.
3.1.4 The urban built-up areas and their planning areas of each city in the deep confined water over-exploitation area and the deep confined water source areas with a daily exploitation base greater than 5 cubic meters shall be concentrated and designated as the dynamic monitoring area of the deep confined water over-exploitation area. 3.1.5 The names and numbers of the dynamic monitoring areas are the same as those of the corresponding groundwater over-exploitation areas. It is required to draw a distribution map of the dynamic monitoring areas of the groundwater over-exploitation areas (see Appendix D for map preparation instructions). 3.1.6 In the dynamic monitoring area of the groundwater over-exploitation area, dynamic monitoring and investigation shall include the following contents:
1 Groundwater level monitoring;
2 Groundwater opening volume monitoring, artificial recharge water volume and water quality investigation; 3 Monitoring of the flow rate of famous springs that need to be protected: 7
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.