Cabinet of Ministers Regulations No. 92 of Riga 2004 17 February (pr. Nr. 7, § 36) requirements for surface water, ground water and monitoring of protected areas and monitoring development Issued in accordance with the water management Act, article 9, paragraph 4 of the fourth part, the third subparagraph of article 20 and article 22 of the fifth i. General questions 1. determines the requirements for surface water, ground water and monitoring of protected areas and monitoring programme development, as well as action to be taken if the objectives have not been achieved ūdensobjekt environmental quality objectives.
2. The Latvian Environment Agency in cooperation with the Latvian Hidrometeoroloģij Agency and public health agencies, as well as with the State Geological Service and its territorial departments (hereinafter referred to as river basin management) every six years in the waters of developing monitoring programme for each river basin district. The program includes surface water, ground water and monitoring of protected areas. The program determines the location of the monitoring stations, reporting parameters and the frequency of sampling. The protected area monitoring program shall include the requirements laid down in other environmental legislation.
3. Surface water and monitoring of protected areas programmes organised by the Latvian Environment Agency in cooperation with the Latvian Hidrometeoroloģij Agency. Ground water monitoring programmes organised by the National Geology Department in cooperation with the Latvian Hidrometeoroloģij Agency. Bathing and bathing the monitoring the implementation of the programmes organized by the public health agency.
4. The Latvian Environment Agency and national geological service are entitled to receive from the other State and municipal institutions, information and data on the monitoring of the relevant institutions.
5. the Minister of Environment approved the water monitoring program. The Latvian Environment Agency within three months after the approval of the programme to the European Commission a report on the Minister of the environment approved water monitoring program.
II. monitoring of surface waters 6. developing surface water monitoring program, the Latvian Environment Agency, the following requirements shall be met: 6.1 number of monitoring stations and choose a location for the data to provide a comprehensive overview of the surface ūdensobjekt the ecological and chemical quality and artificial or heavily modified ūdensobjekt of the ecological potential and chemical quality and the data obtained allow to determine surface water quality class;
6.2. the program shall include reporting parameters that characterize the law of surface ūdensobjekt types, characteristics, classification and anthropogenic load procedure for determining certain ecological and chemical quality criteria;
6.3. the sampling frequency shall be determined such that: 6.3.1. ensure the result reliability and accuracy;
6.3.2. reflect the natural and anthropogenic induced quality criteria value turnover and seasonal fluctuations.
7. Surface water monitoring is intended to provide information about the surface ūdensobjekt the ecological and chemical quality and artificial or heavily modified ūdensobjekt of the ecological potential and chemical quality. In accordance with the tasks assigned to the monitoring of surface waters are divided into: 7.1. surveillance monitoring;
7.2. operational monitoring;
7.3. monitoring of research.
8. Surface water monitoring monitoring task is to get the information: to assess ūdensobjekt 8.1 current situation or ecological potential and identify anthropogenic load;
8.2. to optimize the monitoring programme;
8.3. to determine the type of surface ūdensobjekt of etalonstāvokl;
8.4. the natural conditions and anthropogenic activities that cause surface water quality changes over a longer period of time.
9. Surface water surveillance monitoring shall be carried out: 9.1 in numbers of surface ūdensobjekt to the data that characterize surface water status within each river basin district, as well as provide information on the extent of cross-border transfer of pollution and pollution entering the marine environment.
9.2. large surface ūdensobjekto that are important for the whole river catchment area, such as large rivers where the catchment area exceeding 2500 km2, and large lakes or reservoirs;
9.3. where significant surface ūdensobjekt crossing the State border.
10. monitoring of surface water monitoring station, surveillance monitoring shall be carried out within one year, and at least every six years. Sampling and observation frequency set out in the annex to these provisions. Based on the expert assessment, the Latvian Environment Agency physico-chemical criteria for otherwise the sampling frequency, compliance with the criteria of the natural and anthropogenic variation and seasonal variation.
11. If the surveillance monitoring data suggest that the ūdensobjekt has achieved good surface water status and then anthropogenic influences on concrete surface of ūdensobjekt has not changed, surveillance monitoring can be performed within one year of the three successive River catchment management plan implementation period.
12. operational monitoring of surface water is to obtain information about surface: 12.1. ūdensobjekt condition and artificial or heavily modified the ecological potential of the ūdensobjekt, which, through surveillance monitoring or determining the anthropogenic load, found the risk of not achieving the aims of environmental quality objectives (hereinafter referred to as the risk of surface ūdensobjekt);
12.2. risks of the surface ūdensobjekt the changes in the quality of the implementation of the programme of measures.
13. Surface water operational monitoring shall be undertaken in all surface ūdensobjekto of risk, as well as all surface ūdensobjekto and artificial or heavily redesigned ūdensobjekto that priority substances discharged into the aquatic environment and dangerous and especially dangerous substances.
14. the monitoring of surface water in the required operational monitoring station number and location, take account of the specific circumstances, as well as the following: 14.1. ūdensobjekt, which affects one or several point sources of pollution, be the number of monitoring stations to evaluate the pollution source overall load and its effects;
14.2. ūdensobjekt, which effect on diffuse pollution, shall be the number of monitoring stations for the assessment of pollution loads and its overall impact. If the diffuse pollution load affect multiple adjacent surface ūdensobjekt, monitoring stations can deploy only a portion of them, if data on workload and its effect is enough;
14.3. If the surface ūdensobjekt hidromorfoloģisko conditions significantly changed the anthropogenic activities, this ūdensobjekt be the number of monitoring stations to assess anthropogenic impacts and effects;
14.4. If the surface area of the priority ūdensobjekt and water environment particularly hazardous and dangerous substances, the monitoring station shall be established in accordance with the laws and regulations on the emission of pollutants in the water and on the surface water quality.
15. Surface water monitoring programme of the operational parameters of their choice be determined biological, hidromorfoloģisko and physico-chemical quality criteria that most affects a specific load, as well as tested priority substances and other contaminants, which ūdensobjekt in the municipality concerned in significant quantities. Sampling and observation frequency set out in the annex to these provisions. Based on the expert assessment, the Latvian Environment Agency detects a different sampling frequency, compliance with the quality criteria of the natural and anthropogenic variation and seasonal variation.
16. If surface water operational monitoring data and an assessment of anthropogenic load suggests that the impact of anthropogenic activities on the 14 of these rules referred to in paragraph ūdensobjekt is not relevant or is resolved by the implementation of the programme in question, the Latvian Environment Agency after coordination with the river basin management reduces the operational frequency of monitoring and monitoring quality criteria to be included in the programme.
17. monitoring of surface waters Research task is to find out: 17.1. environmental quality standards being exceeded causes;
17.2. the causes that prevent achieving environmental quality objectives if it found surveillance monitoring;
17.3. crash effects of pollution to surface waters, and to obtain appropriate data to enable the development of recommendations for the breakdown.
18. research of surface water monitoring stations reporting location, parameters and frequency of monitoring surface water monitoring programme shall be determined taking into account the specific circumstances.
III. monitoring of protected areas protected areas 19. monitoring shall include used for the abstraction of drinking water in surface ūdensobjekt of which a day on average, generate more than 100 m3 of drinking water. Ūdensobjekt monitoring of protected areas the following limit parameters: 19.1. ūdensobjekt concerned priority substances discharged and the aquatic environment particularly hazardous and dangerous substances;

19.2. substances in drinking water is controlled in accordance with the Cabinet of Ministers of 29 April 2003 regulations no 235 "mandatory drinking water safety and quality requirements, monitoring and control procedures" and ūdensobjekt in the municipality concerned in such quantities that can affect the State of the ūdensobjekt.
20. If the surface in ūdensobjekt a day on average, generate more than 100 m3 drinking water monitoring programme will determine the following sampling frequency: 20.1. four times a year, if the drinking water supply of less than 10000 inhabitants;
20.2. eight times a year, if the drinking water supply from 10000 to 30000 population;
20.3. twelve times a year, if the drinking water supply of more than 30000 people.
21. where a river basin district is located in protected areas in which their protection because of special environmental quality objectives, the monitoring station location, detection parameters and the frequency of monitoring surface water monitoring programme shall be determined taking into account the specific circumstances.
IV. Groundwater monitoring 22. developing underground water monitoring programme, the national geological service comply with the following requirements: 22.1. the number of monitoring stations and choose a location to: 22.1.1. the data obtained provide a coherent and comprehensive overview of water horizon and package each underground ūdensobjekt and describe their plans and cut;
22.1.2. data obtained allow to detect underground water quality class;
22.1.3. each groundwater quantitative status and contaminant concentration trend of anthropogenic influence;
22.2. the underground ūdensobjekto, crossing the Latvian border, provides a monitoring station density and frequency of sampling for assessing the transboundary groundwater flow direction, speed and chemical changes, as well as to establish the cause of the change;
22.3. the underground ūdensobjekto, which found no risk to achieve the aims of environmental quality objectives (hereinafter referred to as the risk of underground ūdensobjekt), provides a monitoring station density, to evaluate the water abstraction and artificial groundwater replenishment effect on groundwater levels.
23. The underground water monitoring provides information about underground ūdensobjekt quantitative condition and chemical quality.
24. Groundwater quantitative status monitoring is to obtain information to assess: 24.1. anthropogenic load;
24.2. longer period observed the underground ūdensobjekt quantitative state changes caused by natural changes or anthropogenic activities.
25. Groundwater quantitative status monitoring is carried out: 25.1. risk of underground ūdensobjekto;
25.2. the underground ūdensobjekto, which happens in artificial groundwater replenishment;
25.3. the underground ūdensobjekto, located in the regional groundwater depression areas;
25.4. the underground parts of the ūdensobjekt, which takes concentrated groundwater extraction, if the groundwater in the underground water deposits are more than 100 m3 a day;
25.5. in areas where intensive water supply important groundwater replenishment of complex or horizon;
15.9. the underground ūdensobjekto, which crosses the borders of Latvia.
26. Groundwater monitoring in underground water in quantitative monitoring of the situation of the monitoring stations and the number of placements, as well as ground water levels, the frequency of observations for the assessment of the underground water replenishment in the conditions and amounts, as well as water and other types of anthropogenic impact on underground water resources.
27. Underground water wells, where groundwater is greater than 100 m3 a day, groundwater quantitative status monitoring provides users of water according to the underground water deposits passport requirements. Monitoring results annually submit national geology service.
28. in accordance with the tasks assigned, the ground water quality monitoring shall be divided into: 28.1. surveillance monitoring;
28.2. the operational monitoring;
28.3. the monitoring of research.
29. Groundwater chemical quality surveillance monitoring mission is to obtain information to assess: 29.1. anthropogenic load;
29.2. groundwater chemical changes over a longer period of time that have been caused by natural or anthropogenic influences;
29.3. the monitoring program optimization.
30. Groundwater chemical quality surveillance monitoring shall be carried out: 30.1. risk of underground ūdensobjekto;
18.8. potable water supply important underground ūdensobjekto, which takes concentrated groundwater extraction, if underground water supply underground water deposits are more than 100 m3 a day;
30.3. the underground ūdensobjekto, which crosses the borders of Latvia.
31. Groundwater monitoring in chemical detection surveillance monitoring parameters as appropriate to the type of contamination and pollutants that affect ūdensobjekt. Chemical surveillance monitoring test at least: 31.1. oxygen content;
31.2. hydrogen ion concentration negative logarithm of (pH);
31.3. electrical conductivity;
19.5. nitrate;
31.5. ammonium;
19.6. Na +, K +, Ca + Mg +, Cl-, SO42-, HCO3-ions;
19.7. organic substances.
32. in addition to the provisions referred to in paragraph 31, the parameters: 32.1. risk underground make it ūdensobjekto for the monitoring of parameters to be determined, which represents the risk caused by the cause of the problem and its impact.
32.2. the underground ūdensobjekto, which crosses the Latvian State border, carry out the monitoring of parameters to be determined, which allows you to judge the suitability of the water current and possible uses of water, as well as allows you to determine the risk of cross-border impact and assess transboundary impact.
33. Groundwater chemical quality operational monitoring tasks is to get information to: identify chemical 33.1. all risk in underground ūdensobjekt;
33.2. determine the lasting effects of anthropogenic induced pollutant concentration increase trend;
33.3. the control of the underground water quality changes in the underground parts of the ūdensobjekt, which is concentrated in the groundwater extraction, if the groundwater in the underground water deposits are more than 100 m3 a day, and wells, where groundwater is added artificially, as well as in areas with intensive ground water replenishment;
20.8. reasonable measures of individual ūdensobjekt program or the necessary rehabilitation measures.
34. Groundwater chemical quality operational monitoring shall be carried out not less than once a year. Groundwater chemical quality operational monitoring station location, and the number of reporting parameters and the frequency of sampling National Geology Department determines the groundwater monitoring program, considering the circumstances.
35. Underground water wells, where groundwater is greater than 100 m3 a day as well, when the underground water resources are replenished artificially, underground chemical ūdensobjekt operational monitoring provides users of water according to the underground water deposits passport requirements. Monitoring results of water user annually submit national geology service.
36. Groundwater chemical quality research monitoring task is to find out: 36.1. environmental quality standards being exceeded causes;
36.2. the causes that prevent achieving environmental quality objectives if it found surveillance monitoring;
36.3. crash effects of pollution to surface waters, and to obtain appropriate data to enable the development of recommendations for the breakdown.
37. Groundwater research monitoring station location, detection parameters and monitoring frequency is determined by the groundwater monitoring program, considering the circumstances.
V. action to be taken if the objectives have not been achieved ūdensobjekt environmental quality objectives 38. If surface or subsurface monitoring results or other data indicate that the current ūdensobjekt imposed environmental quality objectives not achieved or not achieved the planned deadlines, the Ministry of the environment: 38.1. instructs the river basin authorities investigate the causes of non-compliance and review of programmes of measures;
38.2. instructs the regional environmental authorities to revise the category (A) or (B) permit or pollutant of water use permit conditions, reducing the required emission limits or change the conditions of use of water resources;
23.8. instructs the Latvian Environment Agency and national geological service review monitoring programme;
23.9. carrying out other measures to prevent further contamination of surface or underground water deterioration and facilitate its improvement.
39. The Ministry of the environment do not hesitate to make this rule 38 the measures referred to in paragraph if environmental quality objectives cannot be achieved in circumstances of force majeure, such as the great flood or prolonged drought,.
Informative reference to European Union directive rules included provisions arising from the Directive 2000/60/EC.
Prime Minister e. Repše Environment Minister r. vējonis Editorial Note: rules shall enter into force on 26 February 2004.
Annex to the Cabinet of Ministers of 17 February 2004 the provisions of no. 92 of sampling frequency for the monitoring of surface waters

I. sampling frequency surveillance monitoring no PO box
Quality criteria for rivers lakes transitional waters coastal waters 1.
Biological criteria 1.1.
phytoplankton not less frequently than once a year, no less than annually not less than annually not less than annually 1.2.
other aquatic plants (flora) not less frequently than once a year, no less than annually not less than annually not less than annually 1.3.
macrozoobenthos (invertebrates) not less frequently than once a year, no less than annually not less than annually not less than annually 1.4.
fish at least once a year at least once a year at least once a year — 2.
Hydromorphological criteria 2.1.
continuity not less frequently than once a year — — — 2.2.
Hydrology continuously once a month — 2.3.
morphology of the time during the monitoring time during the monitoring time during the monitoring time monitoring 3.
Physico-chemical criteria 3.1.
temperature every three months, every three months, every three months, every three months, 3.2.
the content of oxygen in every three months, every three months, every three months, every three months, 3.3.
occurs every three months, every three months, every three months, 3.4.
nutrient elements in every three months, every three months, every three months, every three months, 3.5.
acidification every three months every three months — 3.6
other pollutants every three months, every three months, every three months, every three months, 3.7.
priority substances once a month once a month once a month once a month II. Sampling frequency operational monitoring no PO box
Quality criteria for rivers lakes transitional waters coastal waters 1.
Biological criteria 1.1.
phytoplankton not less frequently than once every six months at least every six months at least every six months at least every six months, 1.2.
other aquatic plants (flora) not less frequently than every three years, not less frequently than every three years, not less frequently than every three years, not less frequently than every three years, 1.3.
macrozoobenthos (invertebrates) not less frequently than every three years, not less frequently than every three years, not less frequently than every three years, not less frequently than every three years, 1.4.
Fish not less frequently than every three years, not less frequently than every three years, not less frequently than once every three years — 2.
Hydromorphological criteria 2.1.
continuity not less frequently than every six years — — — 2.2.
Hydrology continuously once a month — 2.3.
morphology, and at least every six years thereafter at intervals not exceeding six years, and at least every six years thereafter at intervals not exceeding six years 3.
Physico-chemical criteria 3.1.
temperature not less frequently than once every three months at least once every three months at least once every three months at intervals not exceeding three months, 3.2.
oxygen content of not less than once every three months at least once every three months at least once every three months at intervals not exceeding three months, 3.3.
salinity not less frequently than once every three months at least once every three months at intervals not exceeding three months, 3.4.
nutrient elements not less frequently than once every three months at least once every three months at least once every three months at intervals not exceeding three months, 3.5.
acidification not less frequently than once every three months at least once every three months:-3.6.
other pollutants not less frequently than once every three months at least once every three months at least once every three months at intervals not exceeding three months, 3.7.
priority substances not less frequently than once a month at least once a month at least every month not less than once a month, Minister for the environment r. vējonis