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Water supply and sanitation (WSS) in the European Union (EU) is the responsibility of each member state, but in the 21st century union-wide policies have come into effect. Water resources are limited and supply and sanitation systems are under pressure from urbanisation and
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
. Indeed, the stakes are high as the European Environmental Agency found that one European out of ten already suffers a situation of water scarcity and the IEA measured the energy consumption of the water sector to be equivalent to 3,5% of the electricity consumption of the EU.


Directives

The water policy of the EU is primarily codified in the following directives: * The Bathing Waters Directive (76/160/EEC) of 1976 replaced by the Directive 2006/7/EC; * The Urban Waste Water Treatment Directive (91/271/EEC) of 21 May 1991 concerning discharges of municipal and some industrial
waste water Wastewater is water generated after the use of freshwater, raw water, drinking water or saline water in a variety of deliberate applications or processes. Another definition of wastewater is "Used water from any combination of domestic, industrial ...
s; * The Water Framework Directive (2000/60/EC) of 23 October 2000 concerning
water resources Water resources are natural resources of water that are potentially useful for humans, for example as a source of drinking water supply or irrigation water. 97% of the water on the Earth is salt water and only three percent is fresh water; slight ...
management; * Th
Drinking Water Directive (2020/2184)
of 16 December 2020 concerning the quality of water intended for human consumption (codifying 98/83/EC amendments). EU member states have enacted national legislation in accordance with these directives. The institutional organisation of public water supply and sanitation does not fall under the purview of the EU, but remains a prerogative of each member state.


Urban Waste Water Treatment Directive of 1991

The Council Directive on Urban Waste Water Treatment concerns the collection, treatment and discharge of urban waste water and the treatment and discharge of waste water from certain industrial sectors. Its aim is to protect the environment from any adverse effects due to discharge of such waters. According to the directive's timetable: * by 31 December 1998: all agglomerations of more than 10 000 population equivalents (PE) which discharge water into sensitive areas had to have a proper collection and treatment system requiring meeting the most stringent quality standards, usually referred to as tertiary treatment (Art. 5); * by 31 December 2000: agglomerations of more than 15 000 p.e. outside sensitive areas had to have a collection and treatment system which enables them to satisfy less stringent requirements, usually referred to as secondary treatment (Art. 4); * by 31 December 2005: all agglomerations of between 2 000 and 10 000 PE. which discharge water into sensitive areas, and all agglomerations of between 2 000 and 15 000 p.e. which do not discharge into such areas had to have a collection and treatment system (Art. 3). However, in the case of Spain changes were made at the time of transposing the Directive. In Article 2 of the Directive, a collecting system means "a system of conduits which collects and conducts urban waste water" and therefore all sewers and drains, both public and private were included. However, in the Spanish transposition (Real Decreto-Ley 11/1995 of 28 December 1995), the definition of a collecting system was changed to mean "all systems of conduits which collect and conduct urban waste water, from the municipal sewer and drainage networks and go to the treatment plants". The added words mean that when the Spanish definition is applied to Article 3 of the Directive the municipal sewer and drainage networks are excluded. If the municipal network did not exist, as in the case of many urbanisations (housing estates) developed in the 1960s and 1970s and within agglomerations of over 2000 p.e. no collecting system needed to be provided at all, under the Real Decreto-Ley 11/1995. Obviously if waste water is not collected it cannot be treated, therefore the changed definition also affected Article 4 of the Directive. Even so, Spain had to and still has to comply fully with the Directive. On 5 March 2009, the Catalan Autonomous Government finally approved a law (La Llei de la millora d’urbanizacions) to deal with deficits of infrastructures, such as sewers in urbanisations in Catalonia, 18 years after the Directive was approved by the European Parliament. The directive also allows the establishment of less sensitive coastal areas, for which primary treatment would be sufficient, if it can be shown that there is no adverse impact on the environment (Art. 6). Member states had to establish lists of sensitive areas. It has been estimated that in 2004 about 34 percent of the pollutant load from
wastewater Wastewater is water generated after the use of freshwater, raw water, drinking water or saline water in a variety of deliberate applications or processes. Another definition of wastewater is "Used water from any combination of domestic, industr ...
that falls under the scope of the directive is discharged into sensitive areas. This Directive was amended by the Commission Directive 98/15/EC.


Implementation challenges

Commission Decision 93/481/EEC defines the information that Member States should provide the commission on the state of implementation of the Directive. The
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
published three reports on the implementation of the directive, the latest in 2004. The report noted that the wastewater treatment situation in Europe is still very unsatisfactory and that none of the deadlines has been met by all member countries. Only Austria, Denmark and Germany fully complied with the directive. The report noted that BOD levels in European rivers have been reduced by 20–30 percent since the enactment of the directive, but that other pollution parameters such as nitrogen levels remained high. The reason is that much of the nitrogen pollution comes from non-point sources in agriculture, and the still insufficient nutrient removal by wastewater treatment plants. The
eutrophication Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytopla ...
of the
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and from ...
,
North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...
and considerable parts of the
Mediterranean The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the e ...
thus remains a "severe problem". The report also noted that it is estimated that more than 50 percent of the discharges into sensitive areas was not treated sufficiently. Even for non-sensitive areas, although the picture was less bleak, only 69% of the discharge received treatment and the 2000 deadline was not met by most member countries. 25 out of 556 cities in the EU still had no wastewater treatment system at all. The directive triggered substantial investment in
sewage treatment Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable for discharge to the surrounding envir ...
throughout the EU. A controversial aspect of the directive is the requirement for all agglomerations with more than 2,000 inhabitants to have a wastewater collection system, which has been widely interpreted as requiring connection to a sewer system even if existing on-site sanitation systems perform adequately. The cost of connecting houses to sewers in small rural towns with dispersed housing patterns is often very high and imposes a high financial burden on users. According to the European Commission, the directive represents the most cost intensive European legislation in the environmental sector. The EU estimates that the equivalent of €152 billion were invested in wastewater treatment from 1990 to 2010. The EU provides support for the implementation of the directive in the order of 5 billion Euro per year.


Planned revision

The European Commission is currently undergoing a consultation on the Urban Waste Water Treatment Directive. As the directive was adopted in 1991, its challenge will be to integrate the commitments taken with the
Paris agreement The Paris Agreement (french: Accord de Paris), often referred to as the Paris Accords or the Paris Climate Accords, is an international treaty on climate change. Adopted in 2015, the agreement covers climate change mitigation, Climate change a ...
as the wastewater treatment sector consumes 1% of the global total energy consumption. Under a business as usual scenario, this figure is expected to increase by 60% by 2040 compared to 2014. With the introduction of energy efficiency requirements, the energy consumption of the wastewater treatment sector can be reduced by 50% only by using current technologies. On top of that, there are also opportunities to produce enough energy from wastewater to turn the whole water sector energy neutral. It uses the energy embedded in the
sludge Sludge is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, wastewater treatment or on-site sanitation systems. For example, it can be produced as a settled suspension obtained from conventiona ...
by producing biogas through
anaerobic digestion Anaerobic digestion is a sequence of processes by which microorganisms break down biodegradable material in the absence of oxygen. The process is used for industrial or domestic purposes to manage waste or to produce fuels. Much of the ferm ...
. These features have been mainly overlooked due to the over-riding objective for utilities to meet existing and future needs for wastewater treatment. In the European Union, 0.8% of total energy consumption goes to wastewater treatment facilities.


Drinking water directive of 1998


Content

The Directive is intended to protect human health by laying down healthiness and purity requirements which must be met by drinking water within the Community (see
water quality Water quality refers to the chemical, physical, and biological characteristics of water based on the standards of its usage. It is most frequently used by reference to a set of standards against which compliance, generally achieved through tr ...
). It applies to all water intended for human consumption apart from natural mineral waters and waters which are medicinal products. Member States shall ensure that such
drinking water Drinking water is water that is used in drink or food preparation; potable water is water that is safe to be used as drinking water. The amount of drinking water required to maintain good health varies, and depends on physical activity level, a ...
: * does not contain any concentration of
micro-organism A microorganism, or microbe,, ''mikros'', "small") and ''organism'' from the el, ὀργανισμός, ''organismós'', "organism"). It is usually written as a single word but is sometimes hyphenated (''micro-organism''), especially in olde ...
s,
parasite Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has ...
s or any other substance which constitutes a potential human health risk; * meets the minimum requirements (microbiological and chemical
parameter A parameter (), generally, is any characteristic that can help in defining or classifying a particular system (meaning an event, project, object, situation, etc.). That is, a parameter is an element of a system that is useful, or critical, when ...
s and those relating to radioactivity) laid down by the directive. * They will take any other action needed to guarantee the healthiness and purity of water intended for human consumption. In setting contaminant levels the directive applies the
precautionary principle The precautionary principle (or precautionary approach) is a broad epistemological, philosophical and legal approach to innovations with potential for causing harm when extensive scientific knowledge on the matter is lacking. It emphasizes caut ...
. For example, the EU contaminant levels for
pesticide Pesticides are substances that are meant to control pests. This includes herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lampri ...
s are up to 20 times lower than those in the WHO drinking water guidelines, because the EU directive not only aims at protecting human health but also the environment. The WHO contaminant levels themselves are already set so that there would be no potential risk if the contaminant was absorbed continuously over a person's lifetime. EU drinking water standards and cases where these standards are temporarily exceeded by a small margin should be interpreted in this context. Compared to the previous European drinking water directive of 1980 the number of parameters has been reduced, allowing member to add parameters such as
magnesium Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic ta ...
, total
hardness In materials science, hardness (antonym: softness) is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. In general, different materials differ in their hardness; for example hard ...
,
phenols In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of one or more hydroxyl groups (— O H) bonded directly to an aromatic hydrocarbon group. The simplest is phenol, . Phenolic compounds are c ...
,
zinc Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodi ...
,
phosphate In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid . The phosphate or orthophosphate ion is derived from phospho ...
,
calcium Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to ...
and
chlorite The chlorite ion, or chlorine dioxide anion, is the halite with the chemical formula of . A chlorite (compound) is a compound that contains this group, with chlorine in the oxidation state of +3. Chlorites are also known as salts of chlorous ac ...
."Europe paves the way for revision of the Drinking Water Directive", Water 21, Journal of the International Water Association, August 2006, p. 18 The directive requires member states to regularly monitor the quality of water intended for human consumption by using the methods of analysis specified in the directive, or equivalent methods. Member states also have to publish drinking water quality reports every three years, and the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
is to publish a summary report. Within five years Member States had to comply with the Directive. Exemptions can be granted on a temporary basis, provided that they do not affect human health.


Implementation challenges and planned revision

Until 2006 the European Commission has not published a summary report on drinking water quality. No EU country achieves full compliance with the directive, mainly because of the geological nature of its soil and agricultural activity. in 2003 the European Commission initiated a broad consultation process to prepare a revision of the Directive. One key aspect of the revision would be to move away from a pure end-of-pipe standard setting approach. Instead the whole water supply process from the basin to the tap would be assessed to identify risk and the most effective control points, through so-called
Water safety plan A water safety plan is a plan to ensure the safety of drinking water through the use of a comprehensive risk assessment and risk management approach that encompasses all steps in water supply from catchment to consumer. Origins According to the ...
s. Another important challenge will be to integrate the new environmental, climate and energy goals of the EU. The issue is substantial as in average 23% of the treated water in the EU is leaked, with some countries facing leakage rates as high as 60%.


Water Framework Directive of 2000


Content

Under this Directive, member states have to identify all the
river basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the ...
s lying within their national territory and assign them to individual river basin districts. By 22 December 2003 at the latest, a competent authority had to be designated for each of the river basin districts. In addition, member states have to analyse the characteristics of each river basin and have to carry out an economic analysis of water use. Nine years after the entry into force of the directive, a management plan must be produced for each river basin district. The measures provided for in the river basin management plan seek to: * prevent deterioration, enhance and restore bodies of surface water, achieve good chemical and ecological status of such water and reduce pollution from discharges and emissions of
hazardous substance Dangerous goods, abbreviated DG, are substances that when transported are a risk to health, safety, property or the environment. Certain dangerous goods that pose risks even when not being transported are known as hazardous materials ( syllabi ...
s; * protect, enhance and restore all bodies of
groundwater Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidate ...
, prevent the pollution and deterioration of groundwater, and ensure a balance between abstraction and recharge of groundwater; * preserve
protected area Protected areas or conservation areas are locations which receive protection because of their recognized natural, ecological or cultural values. There are several kinds of protected areas, which vary by level of protection depending on the ena ...
s. By 2010, Member States must ensure that water pricing policies provide adequate incentives for users to use water resources efficiently and that the various economic sectors contribute to the recovery of the costs of water services including those relating to the environment and resources. This cost recovery rule is expected to impact particularly irrigated agriculture, where users have not paid the full costs of water supply. At the latest twelve years after the date of entry into force of the Directive, the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
has to publish a report on the implementation of the Directive.


Implementation challenges

Some countries, such as France and Spain, had already established basin agencies before the enactment of the directive. They should thus find it easy to implement that part of the directive. Other countries that have historically managed their water resources through institutions whose geographical limits were determined by administrative boundaries, such as in the case of Germany where the states (Laender) manage water resources, are in the process of setting up co-ordinating mechanisms for each river basin. Other elements of the directive, such as the protection of groundwater and cost recovery rules, may be more difficult to implement, especially in Southern member countries that have extensive irrigated agriculture. In March 2007 the EU commission published its first progress report on the implementation of the EU Framework Directive. The report notes mixed results. Almost all member countries have transposed the directive into national law, but the report notes that "the legal transposition of the Directive in national law is poor and in many cases inadequate". Indeed, the report finds that only in three countries the national law (Austria, Malta and Portugal) is in conformity with the Directive. Furthermore, there have been significant delays in the analysis of the characteristics of each river basin. Since the establishment of this knowledge base is a precondition for Basin Plans, this delay jeopardises progress of the implementation of the entire Directive.


Water Supply and Sanitation


Access

Average connection rates to
sanitation Sanitation refers to public health conditions related to clean drinking water and treatment and disposal of human excreta and sewage. Preventing human contact with feces is part of sanitation, as is hand washing with soap. Sanitation systems ...
systems between 80%–90% are reported for Northern, Southern and Central Europe. Eastern Europe still copes with much lower rates of 40%–65% of the population connected to primary
wastewater treatment Wastewater treatment is a process used to remove contaminants from wastewater and convert it into an effluent that can be returned to the water cycle. Once returned to the water cycle, the effluent creates an acceptable impact on the environme ...
at least. Europe in general is improving: Over the last decade more households accessed public treatment plants or even upgraded their treatment system (e.g. from secondary to tertiary treatment).


Service quality

As access is dependent on each member state so is service quality. It ranges from very good service quality in Northern and Southern States of the European Union for example in
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...
or
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
to insufficient or poor services especially in Eastern European states. The history of WSS within the member states and different states in development can partly explain the heterogeneous state of the supply and treatment systems.


History of WSS sector

The supply of water and its disposal has been managed in Europe for many centuries. Centralised water supply and sanitation started with the Romans who were responsible for the construction of aqueducts and systems to collect and distribute water. During the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...
water was distributed through private carriers or/and organised through local communities or cities. The
industrial revolution The Industrial Revolution was the transition to new manufacturing processes in Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going f ...
and the construction of modern industrialised conurbations in Europe was dependent upon managed water supplies. The United Kingdom pioneered urban planning at that time. The time of industrialisation and development of cities (between 1800 and 1900) in terms of WSS is called the time of simple regime followed by the regimes of lower complexity between 1900 and 1950, medium (1980–1970), high complexity (1970–1985) and the era finally ended up in an so called attempt of integration from 1985 onwards. The terms reflect the approach of most (Western) European countries towards WSS at that time. It steadily developed from privately organised co-operations to governmental influenced systems. Together with water management in general, it nowadays comes back to private initiatives manifested in Public-Private co-operations.


Other tools and instruments


The Blueprint to Safeguard Europe's Waters

The Blueprint to Safeguard Europe's Waters is the EU's policy response to the challenges of the implementation of the EU
Water Framework Directive The Water Framework Directive 2000/60/EC is an EU directive which commits European Union member states to achieve good qualitative and quantitative status of all water bodies (including marine waters up to one nautical mile from shore) by 2015. ...
. It is basically structured in four parts: * The review of actions taken to mitigate
water scarcity Water scarcity (closely related to water stress or water crisis) is the lack of fresh water Water resources, resources to meet the standard water demand. There are two types of water scarcity: physical or economic water scarcity. Physical water ...
and droughts, * So called Fitness-Checks identifying overlapping or redundant policy structures and recommend improvement strategies, * The assessments of (a) river basin management plans (by Member States) and (b) vulnerability of water resources due to climate change.


Water Supply and Sanitation Technology Platform

Main text: Water Supply and Sanitation Technology Platform One international nonprofit association (under Belgian law) supporting the European Union in dealing with the challenges of water related issues is the WssTP. This platform was built up in 2004 with financial support of the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
and is steadily growing ever since. The association is dealing with water supply and sanitation issues within Europe and all over the world. Nowadays, it is funded through fees paid by its 127 members from industry, research and education. The aim of the association is to support the development of the water related sector within Europe, assist both the EU and developing countries in achieving the
Millennium Development Goals The Millennium Development Goals (MDGs) were eight international development goals for the year 2015 that had been established following the Millennium Summit of the United Nations in 2000, following the adoption of the United Nations Millenniu ...
, and provide Research and Development roadmaps and recommendations on water related issues especially involving the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
.


Water Information System for Europe

The Water Information System for Europe (WISE) is a partnership of the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
, the
Directorate-General for the Environment (European Commission) Directorate-General for Environment (DG ENV) is a Directorate-General of the European Commission, responsible for the Environmental policy of the European Union. In 2010 "relevant limate changeactivities in DG Environment" were moved to the new ...
,
Eurostat Eurostat ('European Statistical Office'; DG ESTAT) is a Directorate-General of the European Commission located in the Kirchberg, Luxembourg, Kirchberg quarter of Luxembourg City, Luxembourg. Eurostat's main responsibilities are to provide statis ...
, the
Joint Research Centre The Joint Research Centre (JRC) is the European Commission's science and knowledge service which employs scientists to carry out research in order to provide independent scientific advice and support to European Union (EU) policy. The JRC is ...
and the
European Environment Agency The European Environment Agency (EEA) is the agency of the European Union (EU) which provides independent information on the environment. Definition The European Environment Agency (EEA) is the agency of the European Union (EU) which provides i ...
. Since 2007 this web-based service platform provides the public with information about ongoing research projects, policies, data, and reports connected to water in the EU. The target group of this online information system is researchers and professionals dealing with water related issues within the framework of the EU. The platform helps to store and administer data and output handed in by member states and agencies connected to the reporting requirements of the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
.


EAP Task Force

The Environmental Action Programme (EAP) is a policy adopted by Environment Ministers in 1993 in a conference in Switzerland. An international Task Force was established later on to support mainly states of countries in the Eastern Europe, Caucasus and Central Asia. In WSS they are supporting the financial strategies of a number of countries to achieve the
Millennium Development Goals The Millennium Development Goals (MDGs) were eight international development goals for the year 2015 that had been established following the Millennium Summit of the United Nations in 2000, following the adoption of the United Nations Millenniu ...
. Furthermore, they are working on indicators and monitoring systems in those countries to collect data of water utilities to check their performance. Apart from that, the EAP task force is figuring out the potentials of the private sector to participate in the water sector especially in water supply and sanitation in the EECCA countries and they consult local partners in financial planning and investment. They are also collaborating with the EU Water Initiative since 2005.


Major challenges

Major challenges of the EU concerning WSS are connected with modern pressures to the system.
Climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
, demographic developments, urbanization, economic progress, social changes influence the water sector in many ways. The
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...
is said to be very effective concerning water management and policies. However, especially the new member states located in Eastern Europe are in need of enormous investments to ensure the sustainability of the water infrastructure. The existing and foreseen problems are the lack of investments in the rural and municipal water supply which led to poor services (e.g. water leakages, interruption of service, insufficient water availability during drought, etc.), the limited availability of water resources and its energy consumption which can represent up to 50% of municipalities' electricity bill. Technologies are actually available and with a quick return on investment but the sole focus on water quality has diverted the attention for the increasing need of sustainability from the water sector in the context of climate change. Water supply limitation counts as major concern. The first and most rational answer should be to tackle the water leakage problem Europe is facing as almost 1/4 of treated water is leaked in average in the EU. Moreover, research shows that
water reuse Water reclamation (also called wastewater reuse, water reuse or water recycling) is the process of converting municipal wastewater (sewage) or industrial wastewater into water that can be reused for a variety of purposes. Types of reuse include: ...
and recycling are also solutions in the long-term. Furthermore, expert's advice say that water supply and waste water treatment systems should be decentralised. Another challenge within the water sector in Europe is privatisation and lobbyism in the water sector. In France, recent problems emerged regarding the privatising of water supply companies. The European Union needs to make extra investments of €90 billion in the water and waste sector to meet its 2030 climate and energy goals. However, wastewater resources can be useful. In the European Union, an estimated 60–70% of wastewater's potential value is still untapped (in heat, energy, nutrients, minerals, metals, chemicals).


Wastewater reuse

According to an EU-funded study, "Europe and the Mediterranean countries are lagging behind" California, Japan, and Australia "in the extent to which reuse is being taken up." According to the study "the concept (of reuse) is difficult for the regulators and wider public to understand and accept.""Reuse of water in the EU and the Mediterranean", by Bill McCann, Water 21, Journal of the International Water Association, April 2008, p. 42-44, quoting th
Aquarec project
/ref> The second largest
waste reclamation Waste valorization, beneficial reuse, value recovery or waste reclamation is the process of waste products or residues from an economic process being valorized (given economic value), by reuse or recycling in order to create economically useful ma ...
program in the world is in
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...
, where 12% of the nation's waste is treated. By 2023, a new EU agriculture law may raise
water reuse Water reclamation (also called wastewater reuse, water reuse or water recycling) is the process of converting municipal wastewater (sewage) or industrial wastewater into water that can be reused for a variety of purposes. Types of reuse include: ...
by six times, from 1.7 billion m3 to 6.6 billion m3, and cut water stress by 5%. The indirect potable reuse (IDP) project in Wulpen,
Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ...
, discharges recycled water to an unconfined dune
aquifer An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. Aquifers vary greatly in their characterist ...
. Initially the recycled water comprised 90% RO permeate and 10% MF permeate (approx. 6,000,000 m3 per year). However, it was observed that some herbicides were present in the recycled water at levels below drinking water standards due to detection of herbicides in the MF permeate. As a result, since May 2004, only the RO permeate after UV disinfection is injected into the
aquifer An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. Aquifers vary greatly in their characterist ...
with addition of sodium hydroxide to adjust the pH.


See also

*
Drinking water quality standards Drinking water quality standards describes the quality parameters set for drinking water. Despite the truth that every human on this planet needs drinking water to survive and that water may contain many harmful constituents, there are no univers ...
*
List of water supply and sanitation by country This list of water supply and sanitation by country provides information on the status of water supply and sanitation at a national or, in some cases, also regional level. Water supply and sanitation by country * Water supply and sanitation in Afg ...
*
Sustainable Development Goal 6 Sustainable Development Goal 6 (SDG 6 or Global Goal 6) is about "clean water and sanitation for all". It is one of 17 Sustainable Development Goals established by the United Nations General Assembly in 2015, the official wording is: "Ensure ava ...
*
Water, energy and food security nexus The water, energy and food security nexus according to the Food And Agriculture Organisation of the United Nations (FAO), means that water security, energy security and food security are very much linked to one another, meaning that the actions in a ...


Water supply and sanitation by Member States

*
Public water supply and sanitation in Germany Public water supply and sanitation in Germany is universal and of good quality. Some salient features of the sector compared to other developed countries are its very low per capita water use, the high share of advanced wastewater treatment and ...
*
Water supply and sanitation in France Water supply and sanitation in France is universal and of good quality. Salient features of the sector compared to other developed countries are the high degree of private sector participation using concession and lease contracts (''gestion dé ...
* Water supply and sanitation in Portugal *
Water supply and sanitation in Spain Water supply and sanitation in Spain is characterized by universal access and good service quality, while tariffs are among the lowest in the EU. Almost half of the population is served by private or mixed private-public water companies, which op ...
*
Water supply and sanitation in the United Kingdom Public water supply and sanitation in the United Kingdom is characterised by universal access and generally good service quality. A salient feature of the sector in the United Kingdom compared to other developed countries is the diversity of insti ...
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Water privatisation in England and Wales The water privatisation in England and Wales involved the transfer of the provision of water and wastewater services in England and Wales from the state to the private sector in 1989, through the sale of the ten regional water authorities (RW ...
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Water supply and sanitation in the Netherlands Water supply and sanitation in the Netherlands is provided in good quality and at a reasonable price to the entire population. Water consumption is one of the lowest in developed countries at 128 litres per capita per day and water leakage i ...


References


Further reading

*Finger, Matthias, Jeremy Allouche, Patricia Luis-Manso: Water and Liberalisation. European Water Scenarios. International Water Association 2007, . *Mandri-Perrott:Developing Sustainable Legal Mechanisms for Private Sector Participation in the International Water and Wastewater Sector. International Water Association 2008, .


External links


Urban Waste Water Treatment in FranceBibliography on Water Resources and International Law
Peace Palace Library {{Water supply and sanitation by country Drinking water regulation European Union law Health and the European Union
Water Water (chemical formula ) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a ...
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...