Scope of Decree. Designation of water bodies

Transcription

1 Ministry for Environmental Protection and Water (KvVM) Decree 30/2004. (XII. 30.) on rules for investigation of groundwaters Authorised by the provisions set forth in clause m), paragraph (8), Article 110 of the Act LIII of 1995 on the general rules of environmental protection (hereinafter: Kvt.) I have issued the following Ministerial Decree: Scope of Decree Article 1 This decree shall apply to the rights and obligations established for a) groundwater bodies (hereinafter: water body) in respect of aa) their designation, ab) characterisation and classification of their status, ac) their monitoring, ad) review of the tasks defined in clauses aa) to ac), b) investigation and monitoring of groundwaters, c) collection, processing and reporting of data necessary for the execution of the tasks mentioned in clauses a) and b). Designation of water bodies Article 2 (1) Designation of a water body includes spatial delimitation, mapping of the location and the identification thereof. (2) The minister of Environment and Water (hereinafter: minister) shall provide for with regard to the specification under a separate piece of legislation the harmonisation of transboundary water bodies designation with relevant country via institutions under his direction and by the involvement of the Hungarian Geological Institute, operating under the auspices of Hungarian Geological Service. (3) The water body shall be identified by a name reflecting its geographical location and by a code. (4) Boundaries of the horizontal extent of the water body and if known the borders of its vertical extent shall be presented in a geographic information system (hereinafter: GIS), in a digital database and on digital maps with a resolution and content corresponding to the scale at least 1: (5) The document containing the boundaries and identification of water bodies shall be accessible for the public, while the databank of digital maps under paragraph (4) for organisations financed from the state budget and taking part in the data exchange, further for the organisations under direction of the minister and of other ministers involved. Article 3 (1) Water bodies shall be designated on the basis of a) the type and occurrence of the aquifer, namely groundwaters in aa) karstic formations, ab) non-karstic and porous formations of basin-areas, ac) formations of mountainous areas, except those under clause aa) and ab), and b) the temperature of groundwaters coming to the surface from the aquifers : ba) cold groundwaters which mean groundwaters with temperature not exceeding 30 C, bb) thermal groundwaters which mean groundwaters with temperature higher than 30 C and c) the common consideration of the subsurface catchment area, flow conditions, and the natural hydrochemical composition of groundwater as well as the geological structure, for aquifers under a) and b). (2) The aquifer mentioned in paragraph (1) shall mean a the stratum or strata of geological formations of sufficient porosity and permeability to allow the abstraction of more than 10 m 3 a day or the quantity necessary for the drinking water supply of more than 50 persons.

2 2 (3) During designation it has to be considered, that a) the aquifers mentioned in paragraph (2), and b) all those, capable to provide water abstraction of more than 100 m 3 a day shall be assigned to a designated water body. (4) The designation shall be reviewed, and if necessary, modified acc. to the following: a) in the course of the assessment under paragraph (7) of water bodies qualified as being at risk acc. to a separate piece of legislation if certain parts of water bodies with equal characteristics can be easily distinguished from each other, or b) in cases of transboundary water bodies as part of harmonisation under paragraph (2), Article 2, or c) in cases when the assessment under Article 9 reveals differences between certain parts of the water body, not allowing the common qualification of the water body as a whole acc. to Article 11, or d) when there are changes in the quantitative and qualitative basic information, that has been used for designation, or e) in the course of a more detailed further characterisation or classification of the status, in connection with the preparation of the river basin management plans. Characterisation of the status of the water body Article 4 Following the designation, the status of water bodies shall be characterised with special regard to a) protected areas designated and registered acc. to a separate piece of legislation, b) water bodies at risk, c) those parts of a transboundary water body, which may be affected by transboundary impacts arising from activity, d) those parts of a water body on which the recharge of surface water bodies or the maintenance of terrestrial ecosystems directly depends. Article 5 (1) The initial characterisation shall be carried out for all water bodies. These analyses can employ existing hydrological, hydrogeological, geological, pedological and land use data collected for other purposes, information on the pressures to which groundwaters are subject, abstractions from groundwater, observation data on ecosystems, existing monitoring data, further the country-level studies on various relevant aspects with analyses of regional extent. Initial characterisation shall involve the identification of water bodies at risk. (2) Content and form requirements of the initial characterisation are set out in Annex 1 of this decree. (3) In the course of the initial characterisation water bodies at risk shall be identified based on the following criteria: a) adverse change in water(pressure)level; b) comparison of the abstractions with available groundwater resources defined in a separate piece of legislation; c) impact of abstractions and of existing and probable pressures, in particular that of diffuse and point pollution sources on ca) the quantity and quality of groundwaters, cb) the status of surface waters, cc) the surface water or terrestrial ecosystems directly dependent on groundwater; d) overlying strata characteristics, flow conditions and hydrogeological protection; e) chemical status of the water body, or the risk of contamination to occur therein, especially as a consequence of permanent environmental damages and/or from polluted areas; f) if there is the a lack of sufficient existing data needed for any of the assessments under clauses a)-e). Article 6 (1) Based on the initial characterisation the further characterisation of all water bodies at risk and of transboundary water bodies shall be carried out. (2) For water bodies not mentioned in paragraph (1) further characterisation shall be undertaken in the course of the preparation of river basin management plans. (3) The goals of the further characterisation are

3 3 a) to provide means for more exact prediction of whether the water body is to achieve the good status specified in a separate piece of legislation by the date set in the same piece of legislation, b) to enable the selection of measures necessary to achieve the environmental objectives, c) to implement the identification of water bodies at risk acc. to the criteria in paragraph (3), Article 5, if it could not be accomplished during the initial characterisation, d) to ensure the assessment of the elements specified in paragraph (1), Article 4 and paragraphs (1) and (3), Article 5, as well as to make possible to estimate the rate of deviation from the natural status of water bodies, and to reveal the causes thereof. (4) Further characterisation shall be undertaken acc. to the specifications laid down in a separate piece of legislation, and the content requirements set out in section 2 of Annex 1. Soil quality data and data from associated registers and monitoring systems, data on forestry activities, registration and information systems for waste management, monitoring data and other information concerning financial support of agriculture and rural development, data from registration systems and other information in connection with water management, groundwater and geological medium, registration systems of natural healing factors as well as data collected by the Hungarian Geological Service may be employed for further characterisation. Article 7 For water bodies identified as being at risk a detailed assessment of the rate of deviation from the natural status, and the causes and impacts liable for water body to be at risk shall be carried out in frame of further characterisation, focusing on the areas, where a) sustained adverse changes in water(pressure)level, or b) damage of ecosystems depending on groundwater, or c) pollution of groundwater, or permanent deterioration in quality, or permanent environmental damage has taken place. Water body at risk Article 8 (1) A water body is at risk, if a) due to the lack of data, or b) on the basis of the initial characterisation, or c) in the light of further characterisation, and despite of the program of measures established in the river basin management plan it is unlikely to achieve good status by 22 December, (2) Review of elements under paragraph (1) and control of the achievement of environmental objectives shall be carried out in line with a) requirements for the assessment of the good chemical status of groundwater bodies, b) criteria for the identification of significant and sustained adverse trends and of trend reversal points, c) methodology under clause e), paragraph (3), Article 16 establishing and publishing by the minister in a separate piece of legislation. (3) On the basis of paragraph (2) a) those areas within the water bodies shall be designated, where the geological medium, and/or groundwater has been permanently damaged as a result of activities and therefore good chemical status cannot be achieved at all or within the planing cycle, or its achievement is disproportionately expensive; b) those water bodies or parts of bodies shall be identified, where the achievement of good quantitative status would provide adverse effects to the status of surface waters and aquatic or terrestrial ecosystems directly dependent on groundwaters regarding ba) the efficiency of watershed control, flood protection and drainage, or bb) legal abstractions.

4 4 Assessment and qualification of the status of water bodies Article 9 (1) The impact of activities on groundwater shall be analysed and qualified for each water body acc. to the specifications of Annex 2 of this decree. (2) The first assessment shall be completed as part of the works providing basis for the first river basin management plan. Using data from the water body monitoring system put into operation in pursuance of certain rules for river basin management is required therefor. Article 10 The assessment of processes influencing the status of groundwater, and the analysis of the impact of activities thereon should be carried out every year on the basis of groundwater monitoring, and data on revision and self-revision reported acc. to a separate piece of legislation by the operators of activities. Article 11 (1) The status of water bodies shall be qualified under the assessment by its comparison with environmental objectives based on the water body monitoring set in Article 14. Qualification of water bodies shall be carried out as referred to in section 2 of Annex 2 of this decree. Data on water body qualification shall be provided in GIS digital database, and presented on digital maps with resolution and content corresponded to the scale at least 1: (2) Results of status qualification for water bodies with justification thereof and maps representing the status qualification outcomes shall be published in the river basin management plan. (3) Qualification under paragraph (1) shall include the following steps: a) the fulfilment of provisions for the good status of water bodies shall be checked, with regard to the specifications in paragraph (2) of, Article 8, b) if criteria for good status are not met, a detailed justification of causes shall be provided together with the determination of conditions, which are to ensure the achievement of good status by 2015, c) if good status cannot be achieved by 22 December 2015, the fulfilment of requirements modified on the basis of a separate piece of legislation shall be checked, d) for conditions under clause c) the identification specified in paragraph (3) of Article 8 shall be completed. Monitoring of groundwater status Article 12 (1) Changes in the quantitative and chemical status of groundwaters should be followed by monitoring. (2) The monitoring under paragraph (1) includes a system for detecting, measuring-, observing- and controlling of the quantitative and chemical status, and data providing information on natural impacts influencing the groundwater status and on the impact of the activity on groundwater. Article 13 (1) Meteorological and hydrometeorological data in connection with natural impacts (i.e. quantity and quality data on precipitation, data on evaporation) shall be provided by the organisations under the direction of the minister, especially by the Hungarian Meteorological Service. (2) Data detailing knowledge of the impacts on groundwater derived from activity shall be collected from the regional and land-use monitoring. (3) The regional monitoring includes a) monitoring systems being permanently operated by the organisations under the direction of the minister, namely aa) systems for controlling of the quantitative status with special regard to water(pressure)level measurements in shallow- and deep groundwater, karstic and thermal waters undertaking by the environmental and water directorates, as well as observation of springs, ab) hydrological and hydrographical activities being performed by the environmental and water directorates in order to measure and assess the quantity characteristics of surface waters associated with groundwater,

5 5 ac) in respect of water quality, installations where regular measurements are undertaken by the environmental inspectorates (hereinafter: inspectorate), in particular the environmental quality observation network for shallow groundwater, nitrate monitoring specified in a separate piece of legislation and the accidental monitoring established along major rivers, ad) specific monitoring systems established for the observation of certain territories, in particular for the monitoring at potential drinking water supply sites where drinking water resources are maintained for future needs; b) monitoring systems being permanently operated by other governmental organisation, i. e. ba) water(pressure)level measurements, conducting by Hungarian Geological Institute, bb) Information and Monitoring System for Soil Protection operated by Plant and Soil Protection Services; c) observations of quantitative and chemical status of groundwaters being carried out under a separate piece of legislation by local governments within the administrative areas of settlements; d) periodical surveys and expeditionary measurements conducted by governmental organisations as well as, scientific institutions and organisations. (4) Land-use monitoring includes: a) observations being carried out under a separate piece of legislation by the operator of the activity affecting the quantitative and chemical status of groundwater, in particular the monitoring related to public water works in connection with the drinking water supply, and water protection activity associated with drinking, mineral and medicinal water uses as well as monitoring of landfill operations and utilisation of residual sand-and gravel -pit lakes). b) remedial monitoring systems installed in polluted, permanently damaged areas acc. to a separate piece of legislation. (5) Availability of the results of the measurements and observations mentioned in paragraph (1), in clauses b)-d) of paragraph (3) and in paragraph (4) shall be ensured acc. to a separate piece of legislation. Monitoring program Article 14 (1) The monitoring programme mentioned in a separate piece of legislation shall cover the observations and measurements undertaken at the monitoring sites selected within the monitoring network under Article 12, the measuring and observation points of which shall be laid down in the river basin management plan. The monitoring programme includes: a) monitoring sites selected from the systems providing measurements and observations of the groundwater status in protected areas under clause a), Article 4, and b) the water body monitoring systems established in every water body. (2) The water body monitoring system under clause b), paragraph (1) consists of the observation and measurement points selected from the monitoring systems mentioned in clause a), paragraph (3), Article 13. (3) The water body monitoring includes: a) monitoring of groundwater quantitative status, b) monitoring of groundwater qualitative (chemical) status, in particular: ba) surveillance, and bb) operational monitoring of chemical status. (4) The water body monitoring may be supplemented by measurements of case study character; the water body monitoring shall be established in accordance with the requirements of Annex 3 of this decree. (5) Monitoring of quantitative status serves for observing long-term changes in water(pressure)level and status, having regard to short- and long-term variations of recharge. (6) Monitoring of chemical status provides a coherent and comprehensive overview on the chemical status of each groundwater body, and indicates the variations in concentration of the pollutants mentioned in a separate piece of legislation. Article 15 (1) Registration of the basic and measured data obtained in the course of a monitoring program shall be undertaken by VITUKI Kht. For purposes of registration VITUKI Kht. shall check basic data for wells and springs by comparing with those in the National Well Cadastre and the National Spring Cadastre, respectively.

6 6 (2) Changes in the basic data of monitoring stations included in the monitoring programme, and in the measured data obtained within the reporting year shall be submitted to VITUKI Kht. by 31 March of the year following the reporting year. Data reporting and co-ordination Article 16 (1) VITUKI Kht. shall carry out the characterisation of water bodies and the assessment of groundwater status based on the data from monitoring systems, further the evaluation and qualification of the water bodies supported by the data obtained from the observation and measurement points included in the monitoring programme under Article 14. (2) Organisations under direction of the minister shall register for the purposes defined in paragraph (1) the data falling under their competence and shall transfer them to VITUKI Kht. by 31 March of the year following the reporting year. (3) Institutions under direction of other ministers involved (especially the Hungarian Geological Institute, the Central Service of Plant and Soil Protection, the National Head Directorate for Health Resorts and Medical Spas under the National Public Health and Epidemiological Officer Authority, the National Institute for Environment and Health of the Fodor József National Centre for Public Health) shall provide relevant data necessary for the purposes under paragraph (1) acc. to the specifications of a separate piece of legislation. (4) Local municipalities shall submit the monitoring outcomes as defined in clause c) paragraph (3), Article 13 to the competent inspectorate by 1 March following the reporting year. (5) The VITUKI Kht. shall in connection with paragraph (1) a) charge the functions of the system administrator of national databases under clauses a) and d), paragraph (3), Article 13, as well as manage and co-ordinate the central registration of information and data reporting under paragraph (5), Article 13. b) draw up a draft proposal on specification of the monitoring programme under Article 14 and assessments defined in paragraph (1), including ba) a guidance document on methodology, rules on operations, designing manuals and toolboxes, data reporting sheets and reporting patterns, bb) development of the monitoring systems included, with special regard to the identification of necessary modifications in the monitoring under paragraph (2), Article 13, bc) data flow proceeding pattern for monitoring systems operated by various organisations, bd) development of information systems, be) complementary measurements, bf) identification of organisations to be involved; c) develop draft for implementation of the monitoring programme under paragraph (1), Article 14 in cooperation with the institutions defined in clause b), paragraph (3), Article 13; d) take part in the development of the programme of measures specified in a separate piece of legislation; e) elaborate technical specifications and standardised methods for the qualification of water bodies and operation of monitoring programmes, and make a proposal on the year and period under section 2.4. of Annex 2. Miscellaneous, closing and transitional provisions Article 17 (1) This decree shall enter into force on the 30 th day following its publication. (2) The co-ordinating institute under paragraph (1), Article 16 shall select observation and measurement sites of the water body monitoring defined in paragraph (1), Article 14 until 31 December, (3) Tasks under clause e), paragraph (5), Article 16 shall be implemented until 30 June, (4) Where the activity is being performed without control, the water inspection survey and/or the inspectorate shall - with regard to a separate piece of legislation - take measures on the establishment and operation of the monitoring system, and on ordering the data reporting obligations by 22 December, 2006 for those water abstractions and pressures, defined in a separate piece of legislation, which are significant in the context of water bodies assessment. (5) The characterisation specified in paragraph (2), Article 6, and the assessment under paragraph (1), Article 9 should be carried out first by 30 June, 2008 and every 6 years thereafter.

7 7 Article 18 Article 19 This decree is to comply with the provisions laid down in Articles 3., 5., 7. and 8., and Annexes II. and V. of the Directive 2000/60/EC of the European Parliament an the Council of 23 October 2000 establishing a framework for Community action in the field of water policy. Annex 1 to the Ministry for Environmental Protection and Water (KvVM) Decree 30/2004. (XII. 30.) KvVM 1. Initial characterisation Initial and further characterisation The documentation presenting initial characterisation shall consist of a series of maps prepared on the basis of digital map database with resolution and content corresponding to a scale of 1: , and relevant descriptions and tables, serving together the presentation of: a) geological conditions determining the natural status of the water body: aa) geological and hydrogeological characteristics of aquifers and aquitards or aquifuges, in particular hydraulic conductivity, porosity and flow conditions, ab) characteristics of overlaying layer and soil, with special regard to the recharge potential from precipitation, the hydrogeological conditions influencing the infiltration of pollutants and, water cycle for shallow groundwater, in particular to the type, thickness, porosity, hydraulic conductivity, absorption characteristics of overlying strata (hydrogeological protection); b) natural quantitative status of the water body accompanied by the presentation of : ba) areas of natural recharge and discharge, with indication of the water cycle characteristics by their average values of long-term time series for, bb) spatial and temporal variations of the average characteristics of recharge and discharge, bc) and data required for determination of the available groundwater resources, spatial variation and fluctuation of the groundwater(pressure)level expressed in long-term average values; c) the natural chemical status of the water body with demonstration of: ca) the chemical composition expressed by total dissolved salt content, hydrogeochemical type, and the spatial diversity of gas content, cb) long-term average temperature, cc) occurrence of accumulation of chemical element (increasing concentration) of natural origin, anomalies in water quality, with presenting of known verified background concentration values (Ab) in basin areas and their spatial distribution and stratification; d) dependence of surface water and terrestrial ecosystems on the qualitative and quantitative status of groundwater by: da) identification of water bodies, where good status of the ecosystem depends on the groundwater supply, db) identification of the ecosystems, which may be subject to significant deterioration due to changes in groundwater status, with special regard to natural areas under protection and forests; e) activities affecting quantitative and chemical status of the water body expressed in: ea) summarized rates of abstraction, eb) results of the study on the permanent decrease in groundwater level and changes in quality caused by abstractions, ec) summarized amounts of artificial recharge, ed) quality and quantity values of direct discharges into groundwater summarized on the water body level, ee) point, and non-point (diffuse) pollution sources, ef) polluted areas permanently damaged, eg) other activities causing such a change in the quantitative and chemical status of the water body, or such changes in land use, which impede the achievement of good quantitative and chemical status.

8 8 2. Further characterisation, to supplement section 1. With respect of groundwater the following data should be collected and evaluated continuously during activity impact assessment: a) geological characteristics of the groundwater body, including the extent and type of geological units, and the information under points a) to d) of section 1; b) for drinking water abstraction providing 10 m3/day or more, or serving more than 50 persons, and for direct abstractions with significant impact on status of surface water and terrestrial ecosystems dependent on groundwater: ba) location of abstraction and water use purposes bb) rate of annual average abstraction ( for abstraction of bank-filtered water the estimated value of the background inflow shall be indicated), bc) chemical composition and temperature of the abstracted water, bd) impact area and rate of the long-term steady decrease in water(pressure)level caused by abstractions;; c) for direct discharge into groundwater: ca) annual average rate of discharge, cb) quality of water discharged or re-injected into groundwater, cc) spatial configuration of the water(pressure)level steadily transformed under direct discharges and its variations cd) amounts and quality of pollutants directly discharged into groundwater; d) for land uses in areas of recharge: da) location, type of potential and real point, linear and diffuse pollution sources, and for real pollution sources, identification of the most dangerous priority substances directly introduced into geological medium and pollutants directly introduced into geological medium in the highest annual amounts, db) location of permanently damaged polluted areas, level of pollution, with presentation of the most dangerous priority substance and the pollutant of the highest amount, dc) data on significant dredging and damming affecting surface waters, further data on retention of more than m3 water by dams, and on drainage on the territories with area exceeding 300 ha, dd) location and pollution-transferring impact of activities reducing natural protection of groundwaters (open-cut mining, recreational lakes, inadequate well constructions, abandoned wells, etc.), de) land uses in the recharge area of the water body, with regard to local impacts, df) the impact of the activities under the points da) to de) on the quantitative and chemical status of groundwaters, e) spatial distribution of abstractions and available groundwater resources and their relationship with respective presentation of permitted direct and estimated indirect abstractions and artificial recharges. Annex 2 to the Ministry for Environmental Protection and Water (KvVM) Decree 30/2004. (XII. 30.) Assessment and qualification of water body status 1. Objectives for assessment of water body status and relevant tasks to be completed 1.1. Comparison of the results of characterisations with environmental objectives; 1.2. Execution of investigations to support the achievement of environmental objectives (especially the comparison of groundwater status with the abstraction limit value (Mi), trend reversal points, the verified background concentration (Ab) and the pollution limit value (B) defined in a separate piece of legislation); 1.3. Estimate of sustained changes observed in quantitative and chemical status of groundwater body by statistical methods, with special regard to upward trends in pollutant concentration resulting from the impact of activities, and to trend reversals; 1.4. Qualification of water status; 1.5. Numerical expression of the level of confidence for water body assessment and analyses.

9 9 The assessment under points 1.1 to 1.5 is to be appropriate for the identification of water bodies, failed to achieve good status acc. to the results of the investigations under paragraph (2) of Article 9 and consequently qualified to be in poor quantitative or chemical status, and for the identification with regard to environmental objectives - of adverse trends in water bodies qualified to be in good status.. 2. Qualification of the water body status 2.1. Water body can be qualified: a) from the point of view of its quantitative status as aa) good, indicated by green colour -code, ab) poor, indicated by red colour -code, b) from the point of view of qualitative, in particular chemical status as ba) good, indicated by green colour-code, bb) poor, indicated by red colour-code, 2.2. Within the categories under points a) and b), Subsection 2.1 changes in status should be distinguished and indicated based on the results of the analyses under Subsection 1.3: a) if in terms of quantitative status aa) water(pressure)level shows a tendency to decline, it shall be indicated by black hatching, ab) water(pressure)level shows a tendency to improve, it shall be indicated by blue hatching; b) if chemical components show a tendency to decline, it shall be indicated by black dotting, to improve, it shall be indicated by blue dotting; c) no indication is necessary if there is no change in status In assessing and qualifying of chemical status the results of water body monitoring points shall be aggregated for the body as a whole. For chemical components a) the mean values of monitoring data for each point in the groundwater body or group of bodies shall be calculated, and b) shall be further used in calculations specified in a separate piece of legislation and in clause a), paragraph (3), Article 11 to demonstrate whether the water body meets good chemical status criteria or not. Compliance with the provisions established for good status of water body should be checked. To this end the identification of the year and period from which the trend characteristics should be calculated, is required. Annex 3 to the Ministry for Environmental Protection and Water (KvVM) Decree 30/2004. (XII. 30.) Requirements for the establishment of water body monitoring 1. Requirements for setting up of monitoring of quantitative status 1.1. Monitoring of quantitative status shall support the assessment of quantitative status for each groundwater body or group of bodies, including the selection and revision of the abstraction limit value (Mi) and an estimate of the available groundwater resources For water bodies at risk from the point of view of their quantitative status, or in case of transboundary water bodies the density of monitoring points and frequency of monitoring shall be determined so that to be appropriate for a) inventory and control of the impacts of abstractions and discharges on groundwater(pressure)levels, b) determination of the direction and rate of groundwater flows across the state boundaries. 2. Requirements for establishment of monitoring of qualitative status 2.1. Requirements for the chemical surveillance monitoring Surveillance monitoring of chemical status shall be appropriate to a) provide and validate all relevant information required for determination of the activity impacts, b) provide information for each period identified in a river basin management plan, and to support the design of the operational monitoring of chemical status, c) shall include the measurements of the following basic parameters: ca) oxygen content, ph-value, conductivity, nitrate, ammonium,

10 10 cb) parameters determining the ion composition of the water, in particular: sodium, potassium, calcium, magnesium, chloride, sulphate, bicarbonate; d) shall consist of monitoring points of sufficient spatial density in water bodies at risk and transboundary water bodies in order to da) provide -in water bodies at risk -sufficient amount of monitoring data for all pollutants, threatening the good chemical status of groundwater, acc. to the investigation of groundwater and the characterisation of water bodies, db) to provide - for transboundary water bodies - sufficient monitoring data on all parameters deemed to be important in terms of direct abstractions from groundwater flows across state boundaries Requirements for operational monitoring of chemical status Operational monitoring of chemical status should be operated in the periods between surveillance monitoring programmes in water bodies or parts of water bodies qualified as being at risk on the basis of characterisation of the water body and the results of the surveillance monitoring, so that a) the spatial density thereof shall be appropriate to establish the chemical status of the water body or groups of bodies; b) the monitoring frequency shall be sufficient for a more precise identification of an upward trend in the concentration of any pollutant, but sampling and analyses should be carried out at least once a year; c) the data under a) and b) shall represent the quality of the water body or group of bodies. 3. EOV co-ordinates of water body monitoring installations specified in section 1 and 2 should be presented in digital map database with accuracy of ±1 m.