The Sultanate of Oman is holding a strategically important position at the mouth of the Persian Gulf. The population of Oman is 4.43 million (2016).

The limited availability of fresh water in the United Arab Emirates (UAE) has for decades presented a major challenge to the Gulf state’s government and people.

Water resources in the UAE can be classified into two main categories: conventional, such as surface water (including aflaj water systems, springs and dams) and groundwater (shallow and deep aquifers), and non-conventional, such as desalinated water, treated wastewater and cloud seeding.

Groundwater quality in the shallow and deep aquifer systems, particularly in the Bajada region, ranges from 600 to 2000 parts per million (ppm). Household water quality is considered one of the best in the world, reaching 96%

Irrigated agriculture is the primary water consumer, with an average of around 60% of total water use, where 39% is used for productive agriculture, 11% used for greening and landscaping and 10% for forestry.

Traditional water systems, or aflaj, are man-made canals or waterways that may run above or below ground and are type of water infrastructure in UAE.

The Abu Dhabi Water and Electricity Authority (ADWEA) is responsible for the generation, transportation and distribution of water and electricity in Abu Dhabi. In Dubai, Sharjah and Ras Al-Khaimah these tasks are the responsibility of the Dubai Electricity and Water Authority (DEWA), Sharjah Electricity and Water Authority (SEWA) and Ras Al-Khaimah Electricity and Water Authority, respectively.

Groundwater levels in different regions of the UAE have dropped by 60 metres on average. This poses a significant challenge.

Desalination of seawater and brackish groundwater will continue to be a viable option to increase water supply. Considering recent cost-cutting innovations in the desalination process, this alternative may prove to be a relatively inexpensive option in the near future.

To mitigate water scarcity, the countries of the MENA region have substantially increased their investment and participation in desalination. There is no single model for desalination, nor can one model be applied in all the countries.