Abstract
The Tagus-Segura water transfer has generated significant value in the region that receives its water resources. Despite this value, some agents seek the cancellation of this important infrastructure, arguing economic, environmental, social, and political problems. With the aim of providing information on the efficiency of the Tagus-Segura aqueduct as a water resource management measure, especially in terms of the importance of water and the tariffs paid by the users of the aqueduct, this paper presents valuable information to analyse how to improve the functioning of the infrastructure. Thus, the southeast of Spain obtains a high return on the water received from the water transfer while covering all the financial costs derived from it. However, in 2017 a modification was introduced in the tariff that forced water users to cover the construction and fixed costs of the infrastructure as if the total amount of water agreed upon had been received, when in reality a lower amount had been received. This problem was not solved by the proposed tariffs for 2021, and it is therefore essential for the efficient operation of water transfer to modify these tariffs so that they are fair and reduce existing problems, thus avoiding the cancellation of an infrastructure that has not yet been amortised and which provides many benefits to the receiving region.
Highlights
The Segura River Basin is one of the regions in Europe with the greatest pressure on its water bodies, if not the greatest
This paper has presented a series of data on the functioning and economic relevance of the Tagus-Segura water transfer in order to analyse the current development of the activity and whether it constitutes an efficient water policy measure in comparison with other alternatives
Part of the water from the aqueduct is used for water supply, which is of enormous value as it is a priority use
Summary
The Segura River Basin is one of the regions in Europe with the greatest pressure on its water bodies, if not the greatest This situation is associated with various types of impact, the most significant of which are environmental due to the effect on the ecosystem, economic due to the limited access to a basic productive resource, and social due to the difficulties in obtaining a stable water supply. Urban water supply is of great importance and must be guaranteed in any case, at least when it is for household consumption In this region, there is a dynamic agricultural activity with higher returns than in the rest of the country [7,8,9,10]
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