Statistical activity code: 10302
Water extraction by source and type of water, incl. extraction of ground water by aquifers and bodies of groundwater
Water use by type of water and economic activity and by field of water use
Amount of wastewater and pollution load by pollutant; amount of wastewater and pollution load by catchment area
Estonian Classification of Economic Activities (EMTAK 2008) based on NACE Rev. 2
Classification of Estonian administrative units and settlements (EHAK)
All sectors and activities
Biological Oxygen Demand (BOD7) – quantity of oxygen expressed in milligrams consumed in the biological decomposition of organic substances contained in one litre of water during 7 days. The source of organic pollutants is wastewater of households, food processing industry and agriculture. The result of large quantity of organic pollutants in water bodies is reduction of oxygen and suffocation of fish and other water biota.
Cooling water – water which is used to absorb and remove heat. The main users of cooling water are large power stations of Ida-Viru county (AS Narva Elektrijaamade Balti elektrijaam and Eesti elektrijaam).
Effluent – water discharged to the environment after being used or rain water collected and discharged through sewerage.
Ground water – fresh water that is being held in, and can usually be recovered from, or via, an underground formation, which may accumulate in wells and filter into surface water bodies.
Mechanical treatment – primary treatment of waste water whereby suspended solids are separated from the sewage by sedimentation, floating, filtration, microfiltration or oil/water separation. It is usually used in combination with other types of treatment, either as the first step (in order to protect other treatment facilities against damage or surface contamination) or as final treatment (in order to remove particulate matter or oils separated during prior treatment).
Mineral water – a special kind of ground water. Mineral water includes minerals or other dissolved substances, which give water taste or therapeutic properties.
Mining water – quantity of water abstracted from mines and quarries during the year.
Rain and drainage water – water from natural sources collected by drainage system, which is not wastewater.
Sea water – quantity of water abstracted from the Baltic Sea during the year.
Surface water – water that stands or flows permanently or temporarily in a water body or water in snow or ice aggregate, except sea water.
Suspended solids – a mixture of fine powdery substances and liquid in which the solid particles are bigger than in a colloidal solution.
Total nitrogen – annual load of nitrogen (N) from households and economic sectors discharged into aquatic ecosystems with waste water.
Total phosphorus – annual load of phosphorus (P) from households and economic sectors discharged into aquatic ecosystems with waste water.
Waste water – water which is damaged beyond the level of harmlessness and which requires purification, or effluent or contaminated rain water.
Water abstraction – water removed from ground or surface water source during the year. Water abstraction from households’ wells, which did not need permit of special use of water is not included.
Water discharge – discharge of effluent into a recipient.
Water use – water that is actually used for a specific purpose such as for domestic use, production and agriculture. Excludes water returned without usage like water extracted in mining and quarrying, draining water, etc.
Enterprises who have been issued a water abstraction permit or an integrated environmental permit
Estonia as a whole
Notifications about dissemination of statistics are published in the release calendar, which is available on the website. Every year on 1 October, the release times of the Statistical Database, news releases, main indicators by IMF SDDS and publications are announced in the release calendar (in case of publications – the release month).
All users have been granted equal access to official statistics: dissemination dates of official statistics are announced in advance and no user category (incl. Eurostat, state authorities and mass media) is provided access to official statistics before other users. Official statistics are first published in the Statistical Database. If there is also a news release, it is published simultaneously with data in the Statistical Database. Official statistics are available on the website at 8:00 a.m. on the date announced in the release calendar.
Data are published under the subject area “Environment / Natural resources and their use” and “Environment / Environmental pressure” in the Statistical Database at http://pub.stat.ee.
The dissemination of data collected for the purpose of producing official statistics is guided by the requirements provided for in § 33, § 34, § 35, § 36, § 38 of the Official Statistics Act. Access to micro-data and anonymisation of microdata are regulated by Statistics Estonia’s procedure for dissemination of confidential data for scientific purposes: http://www.stat.ee/dokumendid/51669.
Data serve as input for statistical activities 10001 “Environmental trends”, 10601 “Material flow accounts”, 50101 “Regional development” and 50201 “Sustainable development indicators”.
Data Collection Manual for the OECD/Eurostat Joint Questionnaire on Inland Waters. Concepts, definitions, current practices, evaluations and recommendations, Eurostat (2008)
To assure the quality of processes and products, Statistics Estonia applies the EFQM Excellence Model, the European Statistics Code of Practice and the Quality Assurance Framework of the European Statistical System (ESS QAF). Statistics Estonia is also guided by the requirements in § 7. “Principles and quality criteria of producing official statistics” of the Official Statistics Act.
Statistics Estonia performs all statistical activities according to an international model (Generic Statistical Business Process Model – GSBPM). According to the GSBPM, the final phase of statistical activities is overall evaluation using information gathered in each phase or sub-process; this information can take many forms, including feedback from users, process metadata, system metrics and suggestions from employees. This information is used to prepare the evaluation report which outlines all the quality problems related to the specific statistical activity and serves as input for improvement actions.
Ministry of the Environment
Ministry of the Interior
Stockholm Environment Institute (SEI Tallinn)
Users’ suggestions and information about taking these into account are available on the website of Statistics Estonia at http://www.stat.ee/statistikatood.
Since 1996, Statistics Estonia conducts reputation and user satisfaction surveys.
All results are available on the website at http://www.stat.ee/user-surveys.
Complete for the territory of Estonia as a whole
The following data are received from the Estonian Environment Agency: water extraction by source and type of water, including extraction of ground water by aquifers and bodies of groundwater; water consumption by type of water and economic activity and by field of water use; wastewater discharge and pollution load by pollutant; wastewater discharge and pollution load by catchment area; wastewater discharge and pollution load by wastewater collection area; level and method of wastewater treatment by wastewater collection area; capacity of treatment plants covered by the Council Directive concerning urban wastewater treatment by amount of water treated, BOD by population equivalent; volume of sludge and sludge treatment method.
DATA FROM OTHER STATISTICAL ACTIVITIES
Enterprises which have been issued a water abstraction permit or an integrated environmental permit submit a report to the Environmental Board (by 15 February). The Environmental Board submits a report to the Estonian Environment Agency (by 1 March).
Statistics Estonia receives aggregated data together with the source data from the Estonian Environment Agency by e-mail.
Arithmetic and qualitative controls are used in the validation process, including comparison with other data. Before data dissemination, the internal coherence of the data is checked. The data are compared with the data of previous periods and checked for inconsistencies.
The collected data are converted into statistical output. This includes calculating additional indicators. New variables are calculated by applying arithmetic conversion to already existing variables. Microdata are aggregated to the level necessary for analysis.