Overexploitation And Water Quality In The
Crevillente Aquifer (Alicante, SE Spain)
Author(s)
J. M. Andreu, A. Pulido-Bosch, M. R. Llamas, C. Bru,
P. Martínez-Santos, E. García-Sánchez & L. Villacampa
Abstract
The Crevillente aquifer is a karstic aquifer, situated in Alicante province in the
SE of Spain. The aquifer basically comprises a series of Jurassic limestones and
dolomites, belonging to the Betic Cordillera. Intense exploitation of the aquifer
started in the early 1960s. Exploitation was initially concentrated in two sectors
of the Sierra de Crevillente and, years later, extended to a third sector. As a
consequence of abstractions that were much greater than recharge into the
system, a continual drop in the water level persisted for several decades. These
abstractions have occasionally caused local dewatering over depths of more than
300 m. From a hydrogeological point of view, the aquifer dewatering in one of
the sectors was accompanied by increased mineralization and a fall in quality of
the groundwater, and several boreholes had to be abandoned. In recent years, the
degree to which the aquifer is overexploited has fallen considerably, and it
appears to have entered a new hydrodynamic stage. New hydrogeochemical
characterisations have been carried out, which indicate that the aquifer water is
relatively strongly mineralised due, fundamentally, to the dissolution of
evaporite rocks. On the other hand, deterioration in water quality as a
consequence of the degree of overabstraction can also be confirmed.
Keywords: overexploitation, hydrogeochemistry, water quality, karstic aquifer,
Crevillente.
Keywords
overexploitation, hydrogeochemistry, water quality, karstic aquifer,
Crevillente.
Related Book
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