Water Supply and Sanitation in Iraq is charcterized by poor water and service quality. Three decades of war, combined with limited environmental awareness, have destructed Iraq's water resource management system. Thus, Iraq faces difficulties to realize the target of 91% of households using safe drinking water supply by 2015. Currently, 16% of households report daily problems with supply and 20% use an unsafe drinking water source. Furthermore, leaking seawage pipes and septic tanks pollute the drinking water network.(11)

Water resources: Euphrates and Tigris

Iraq is fed by two major rivers, the Tigris and the Euphrates, both of which originate in Turkey. These two rivers account for 98% of Iraq`s surface water supply.(1) Both rivers mostly rely on rainfall outside the country and flow through several countries before entering Iraq. They are therefore very vulnerable to climate change and storage projects in Turkey, Syria and Iran.(2)

The Euphrates basin has a total size of 579.314 km² and about 49% of the basin lies in Iraq.(3) Yet, 90% of its volume comes from outside the country. Thus, the Euphrates presents the most critical problem of Iraq`s water strategy.(4) The Euphrates does not receive water from permanent tributaries within Iraq territory and is fed only by seasonal runoff from wadis.(3) The average annual flow of the Euphrates at the border to Turkey is estimated at 30 km³, with a fluctual annual value ranging from 10 to 40 km³.(5)

The Tigris Basin has a total size of 371.562 km² and 38% of this covers Iraqi territory. The average annual runoff is 21.2 km³. Within Iraq, the Tigris River receives water from five main tributaries, namely the Khabour, Great Zab, Little Zab, Diyala and Al Authaim. Yet, only the latter lies entirely within Iraq.(3) All together, 50% of the rivers water volume comes from outside the country.(4)

The flow of the rivers varies considerably every year. Destructive flooding, especially of the Tigris, is not uncommon and led to numerous great flood legends, including the biblical story of Noah and the ark.(2) In the south of Iraq, large areas are regularly inundated, levees often collapse and roads and villages must be built on high embankments.(1) Conversely, years of low flow make irrigation and agriculture difficult.(2)

Recharge

Rainfall is the second main water source in Iraq. The highest peaks in Iraq reach about 3000 m above sea level and rainfall there is more intense than in the rest of Iraq; it is often well above 1000 mm/year. Towards the south, the mountain foothills become a vast rolling plane that is mainly bound by the sharp valleys of the Tigris and Euphrates rivers. The altitude of the plain varies from 150 to 400 m above sea level. Close to the mountains, the rainfall is sufficient for agriculture. The southern part of the Upper Mesopotamia is steppe or desert.(6)

Rainfall is very seasonal and occurs mainly between December and February. Average rainfall is estimated at 154 mm, with a huge range from less than 100 mm in the south and up to 1200 mm in the north east.(7) This can lead to extensive flooding in central and southern Iraq.

Groundwater

In many parts of northern Iraq, groundwater is the sole resource and therefore plays a significant role in agriculture, water supply and health. Even though Iraq currently has complex political and socio-economic problems, in its northern part fast urbanization and economic expansion are visible everywhere. Monitoring and water management schemes are vital to prevent aquifer over-exploitation in the region.(6)

In the plain of northern Iraq, groundwater is tapped by a few thousand wells with a depth ranging from 100 to 200 m. In the hills more to the north, spring water from karstic aquifers is used as the main source for drinking water.

In the period of 1999-2001 dramatic droughts affected the groundwater resources in these regions. Fortunately, this increased the awareness of local authorities and both local and international experts of the importance of using the groundwater in a sustainable way. This led to the initiation of several projects and experiments.(6)

Access Water and politics

Iraq derives the majority of its surface water from the Tigris and Euphrates rivers. Historically, the presence of these rivers led to the establishment of one of the world`s earliest and most advanced civilizations. Strong governments emerged because of the need for organization and for technology in order to exploit the Euphrates and Tigris rivers.(2) However, they have fallen to less than a third of their normal capacity which is largely the result of upstream activities by Iraq`s neighbours.(8)

In 1946 Turkey agreed to begin monitoring the two rivers and to share related data with Iraq. In 1980 Turkey and Iraq further specified the earlier agreement by establishing a Joint Technical Committee on Regional Waters. Two years later, the Syrian Arab Republic joined the Committee.(9) In the 1980s, Turkey began a $32 billion dam-building project known as the Southeastern Anatolia Project or “GAP” (Turkish: “Güneydoðu Anadolu Projesi”). As part of GAP, Turkey constructed a series of 22 dams and 19 hydroelectric power plants along the Euphrates and Tigris.(8) The key structure is the Ataturk Dam on the Euphrates, which is located approximately 80 km upstream from the Syrian border. Turkey has stated that it would only guarantee a flow downstream from the dam of 15.75 km³/a (500 m³/s) of Euphrates water across the border to the Syrian Arab Republic. This represents about 50% of the natural flow of the Euphrates at the Turkish border. Both Syria and Iraq have tried to inhibit this. They stated that the minimum flow should average at least 700 m³/s but so far Turkey rejected this claim.(10)

Syria is in the unusual position of being a downstream country with regard to Turkey and an upstream country with regard to Iraq. In 1990, the Syria agreed to share the remaining Euphrates water with Iraq on a 58 percent (Iraq) and 42 percent (Syria) basis, which corresponds to a flow of 9 km³/a at the border with Iraq.(9)

In 2008, Turkey, the Syrian Arab Republic and Iraq decided to cooperate on water issues. It was planned to establish a water institute that consists of 18 water experts from each country in order to find a solution for water-related problems among the three countries.(9)

Table 1 : Average Discharge of Water to Iraq (billion m³), after (11)

	2009	2025 (est.)
Tigris	49.2	9.16
Euphrates	19.34	8.45

Service quality

In the 1970s, Iraq`s population enjoyed a relatively high level of water supply and sanitation services. Over 95% of the urban population and over 75% of the rural population had access to safe potable water (12) with a daily per capita provision of about 330 liters per day.(8) Throughout the country there were about 218 water treatment plants and about 1200 compact water treatment units. In urban communities 25% were connected to sewerage systems and 50% with on-site septic tanks. Sanitation services in rural areas covered about 40%.(12)

However, the country`s water infrastructure became severely damaged during the eight year war against Iran in the 1980s, the Gulf War in 1990-1991, the resulting economic sanctions in the years thereafter and in the war in 2003.(8) As a result, many unrecognised leakages in the networks occurred which led to the necessity of renovation and construction of new facilities. Also good monitoring and controlling devices are missing, which leads to further mismanagement and partly to illegal connections on the network. Another problem is the direct connection of house boosting pumps, which leads to a reduction of pressure.(13)

Efficiency

The efficiency of Iraq’s water supply is limited by water losses. To reduce this cost-intensive problem, distribution pipes should be replaced, maintenance teams for distribution network should be founded for taking the illegal connections into account, equipment and material to treat breaks and leakages should be exchanged and the population needs to be encouraged to reduce water wastage and consumption.(13)

Present situation

Table 2 and Table 3 summarize the present situation concerning access to drinking water and sanitation according to (14).

Table 2 : Access to drinking water, after (14)

	urban %	rural %
Tap water, oiped into dwelling	96.0	45.6
Tap water, public tap	1.5	4.7
Surafce water	0.5	26.1
others	2.3	23.7

Access to improved drinking water sources: 98%, urban and 50%, rural. Access to house connection: 96% urban and 46% rural.(15)

Table 3: Access to sanitary, after (15)

	urban %	rural %
Flush and poor flush	85.0	57.0
Latrins	14.9	40.0
Others	0.2	3.0

Access to improved sanitation: 90% urban and 70% rural, Access to sewerage connection: 37%, urban and 2%, rural.

Environmental Aspects Iraqi Marshlands

The Iraqi Marshlands constitute the largest wetland ecosystem in the Middle East and they are of environmental and socio-cultural significance. They are located in lower part of the Euphrates-Tigris basin in southern Iraq and consist of interconnected lakes, mudflats and wetlands.
In the early 1970s, the marshlands extended over 20000 km² of Iraq and Iran. Subsequent upstream construction of more than 30 dams diminished water flows, eliminated flood pulses and increased pollution concentrations.(17) Yet, while dam construction reduced the amount of water reaching the marches, their destruction is primarily due to the intentional drainage during the 1990s for the purpose of drying out the area. These actions led to the systematic shrinkage of the Marshlands. By the time the former Iraqi regime collapsed in 2003, over 90% of the area had dried out as saltpans. In mid 2003 local residents that had not been displaced opened floodgates and breached embankments to reintroduce water back into the Marshlands. By April 2004, about 20% of the original Marshland area was re-inundated. In order to re-flood and restore the marshes effectively, donor countries like the United States and Italy have been developing master plans.(16)

Irrigation and Salinity

It is estimated that in the seventies, half of the irrigated areas in central and southern Iraq were degraded by this treatment. In 1978 a land rehabilitation program was build that included concrete regulations for irrigation channels as well as a installation of field drains and collector drains. 1989 about 700,000 ha had been rehabilitated at a cost of 2000 US$/ha.

Still, the continuous usage of unsustainable practices as well as the destroyed infrastructure of the country due to the Gulf War 1991 and also the poor maintenance resulting by sanctions, led to a further deterioration. Recent studies estimate that 4% of the irrigated areas are severely saline, 50% moderately and 20% slightly saline.(22)

Water quality

According to the WHO guidelines, Iraq’s water quality for drinking and agriculture is poor. That is caused by high salination and pollution. 8% of the rural population use saline shallow village wells as main drinking source. In the first six months of 2010, there occurred more over 360000 diarrhoea cases, due to polluted drinking water and poor hygiene practices.(11) In 2004, 15673 samples in 15 governorates were tested with regard to its water quality. 1010 samples were found to be polluted (6.4%).(14)

Iraq`s rivers

Rivers in Iraq are often used for waste and sewage disposal. Using untreated river water as drinking water can therefore lead to serious health issues. Water must be disinfected with chlorine.(4)

Groundwater quality

The groundwater quality is simply the result of the geology and hydrogeology of the particular area. The prevalence of carbonate sedimentary rocks in the mountains in the north leads to pH values from 6.5 to 8.0 and a generally low mineral content.(6)

The Bakhtiari aquifer which lies in the northwestern mountain foothills has a thickness of up to 6000 m (18) and its water is generally of good quality. The exceptions are waters from shallow wells that are located near cities or villages. These waters are often contaminated, mainly due to the free seepage of sewage water. Quality of waters that drained through complex aquifer systems or Fars formations depend on local factors, mainly the presence of evaporitic gypsum or anhydrite layers. Where they are present, the total salinity and content of Na, Cl, NO3, SO4 and Fe ions increase.(6) Such Fars formations cover a large area of Iraq. In southern Iraq good quality groundwater is rather limited because of high levels of salinity.(18) Salinity levels in Basrah are well above 7000 ppm – the WHO standard for human consumption is 500 ppm or less.(4)

Water from the marshes

Only 13% of the remaining residents in the Marshlands have piped water supply, 23% of villages purchase their water from tankers and 38% of villages obtain desalinated water from reverse osmosis units by special vehicles. More than one third obtain their drinking water directly from the marshes without treatment ( Figure 2 ). This is very alarming because the marsh water is contaminated with pesticides, with salt from fried surface, and from untreated industrial discharge and sewage from upstream. And even in villages with piped supply, in 2004 only 13% of these villages could be considered to have access to improved drinking water sources in terms of quality and quantity.(16)

Most settlements lack basic sanitations systems. In 61% of the villages residents used areas near their houses directly for sanitation. As more than one third of the villages uses water directly from the river or marsh without treatment, the current sanitation situation raises serious public health concerns. Outbreaks of water-borne diseases are frequent and the provision of wastewater treatment services is critical. In addition, the return of displaced people to the marshland area places a burden on the provision of drinking water and sanitation.(16)

Drinking water quality in Baghdad

Table 4 : Average in-situ parameters of Baghdads drinking water, after (1) . The limits are according to the Iraqi Drinking-water Standard IQS:417/2001.

	pH	el.cond. µs/cm	TDS mg/L	Tital Hardness mg/L
samples	7.67	827	546.4	339.5
MCL´S	6.5-8.5		1000	500

Table 5 : Concentration of common ions in drinking water in Baghdad, after (1) . The limits are according to the Iraqi Drinking-water Standard IQS:417/2001.

	SO42- mg/L	Cl- mg/L	NO3-, mg/L	F- mg/L	Ca2+ mg/L	Mg2+ mg/L	K+, mg/L	Na+, mg/L
Samples	230.1	67.7	<7	<1.5	84.5	31.1	<2	24.3
Limits	250	250	50	1.0	50	50		200

Drinking water quality in Basrah

Local water sources have a high salt content and water from the general network is therefore often only used for washing and cleaning purposes. Drinking water is generally bought from water tankers or markets that receive supplies from water treatment plants that use reverse osmosis to remove excess salt. Still, when compared to the national average Basrah performs quite well in supplying access to both drinking water and sanitation.(20)

Responsibility for water supply and sanitation

The Ministry of Water Resources (MWR) is responsible for Iraq’s water usage. They are operating 25 major dams, hydropower stations and barrages as well as 275 irrigation pumping stations serving already the entire irrigated area. Five commissions and eleven companies, containing 12 000 staff, belong to the Ministry of Water Resources. Other important institutions related to water issues are the Ministry of Agriculture, the Ministry of Energy, the Ministry of Municipalities and Public Works, the Ministry of Environment as well as some other ministries and local governorates treating of economic and human resources.(11)

Iraq’s constitution, founded in 2005, requires that the regional and federal governments ensure the so called “just distribution” of water in Iraq. Since Iraq is considered as an extremely water stressed country, it will be a big effort to achieve this mandate. According to the report from UNICEF, between 2005 and 2008, over 600 workers from the Ministry of Municipalities and Public works were killed while attempting to repair water networks. Their deaths critically damaged the sector and cut off entire communities from essential services.(8)

Furthermore, one of the principal challenges in water management is the coordination of ministerial and regional interests within Iraq. One main issue is the awareness of the degradation of Iraq’s natural resources and ecosystems and a concrete treatment plan to protect the environment. The UN is supporting the Government of Iraq with 121 water projects.(11)

Since the water tariff in Iraq is very low the way of water usage is often not very sustainable. Where enough safe drinking water is available, people are not aware of its value and consume 350 litres per capita and day. It must be considered to raise the tariff in order to secure a minimum of the required costs. Additionally, it is necessary to import water meters and to install them in the residential houses, government and commercial buildings in order to measure and finally decrease the quantity of water consumption to a reasonable amount.(13)

Conversely, people that have to obtain their water from tankers or desalination plants spend one-third of their income on purchasing potable water.(8)