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La cadena montañosa del Haouz, situada entre las ciudades de Ceuta y Tetuán, con una superficie superior a los 90 km2, está constituida por una serie de acuíferos kársticos, fundamentalmente dolomíticos. Estos acuíferos se caracterizan por una fuerte compartimentación consecuencia de una estructura en escamas afectada, a su vez, por importantes fracturas trasversales. En este trabajo se presenta una primera evaluación de su funcionamiento hidrogeológico así como de la variabilidad espacial de las características fisico- químicas de sus aguas subterráneas, The Haouz mountain range, situated in the north of Morocco, between the cities of Ceuta and Tetouan, has a surface area greater than 90 km2 and consists of karst aquifers mainly dolomitic. These aquifers are characterized by a thrust nappes structure which gives rise to a marked partitioning of the aquifers. A first approach on its hydrogeological functioning and spatial variability of the physical-chemical characteristics of groundwater is presented in this paper

La cadena montañosa del Haouz, situada entre las ciudades de Ceuta y Tetuán, con una superficie superior a los 90 km2, está constituida por una serie de acuíferos kársticos, fundamentalmente dolomíticos. Estos acuíferos se caracterizan por una fuerte compartimentación consecuencia de una estructura en escamas afectada, a su vez, por importantes fracturas trasversales. En este trabajo se presenta una primera evaluación de su funcionamiento hidrogeológico así como de la variabilidad espacial de las características fisico- químicas de sus aguas subterráneas The Haouz mountain range, situated in the north of Morocco, between the cities of Ceuta and Tetouan, has a surface area greater than 90 km2 and consists of karst aquifers mainly dolomitic. These aquifers are characterized by a thrust nappes structure which gives rise to a marked partitioning of the aquifers. A first approach on its hydrogeological functioning and spatial variability of the physical-chemical characteristics of groundwater is presented in this paper

Fuente Grande spring is the main natural discharge point of the carbonate aquifer system of the Sierra de la Alfaguara (Granada, Spain). The hydrodynamic and hydrochemical responses of this spring, with respect to precipitations recorded during the study period (2000-2002), show that the system drained is a fissured system, because slow and little increases in the outflow of the spring, accompanied of a scanty dilution process. The analysis of depletion curves shows that this is a slow process; moreover, the temporal variation of the electrical conductivity of the water and the variation coefficient of this parameter, confirm the low karstification degree of the aquifer

Fuente Grande spring is the main natural discharge point of the carbonate aquifer system of the Sierra de la Alfaguara (Granada, Spain). The hydrodynamic and hydrochemical responses of this spring, with respect to precipitations recorded during the study period (2000-2002), show that the system drained is a fissured system, because slow and little increases in the outflow of the spring, accompanied of a scanty dilution process. The analysis of depletion curves shows that this is a slow process; moreover, the temporal variation of the electrical conductivity of the water and the variation coefficient of this parameter, confirm the low karstification degree of the aquifer

A rainfall-outflow model has been applied for simulating the daily outflows of El Tempul spring (Cadiz, Southern Spain) based on daily precipitation values. The model fits quite good for average climatic conditions; however, for high recharge or very drought periods, the model presents variations that moves away of reality. The application of this model can be useful in water resource management of the carbonate aquifer system of the Sierra de las Cabras, which would result in benefit of water supplying of Cadiz Bay, an area where the demand of water is elevated and, in addition, presents important seasonal variations, with greater demand in summer

A rainfall-outflow model has been applied for simulating the daily outflows of El Tempul spring (Cadiz, Southern Spain) based on daily precipitation values. The model fits quite good for average climatic conditions; however, for high recharge or very drought periods, the model presents variations that moves away of reality. The application of this model can be useful in water resource management of the carbonate aquifer system of the Sierra de las Cabras, which would result in benefit of water supplying of Cadiz Bay, an area where the demand of water is elevated and, in addition, presents important seasonal variations, with greater demand in summer

The paper show the results of the aplication of the DRASTIC method for contamination vulnerability assesment in the fissured carbonate aquifer of Torremolinos. The final mapping of the overlay cover using CIS (Arc/info y Arc/view) are also presented as well as the main problems occurred

The paper show the results of the aplication of the DRASTIC method for contamination vulnerability assesment in the fissured carbonate aquifer of Torremolinos. The final mapping of the overlay cover using CIS (Arc/info y Arc/view) are also presented as well as the main problems occurred

The leachate produced ¡n La Mina landfill has affected the groundwater quality in its surroundings. The chemical composition of the waters from two wells points and the main spring of the aquifer have been controlled. Great amounts of calcium, magnesium and inorganic carbon have been detected In the water samples of the affected points. A hydrochemistry computer code has been used to calculate the PC02 and the saturation indexes of calcite, aragonite and dolomite. The PC02 values are higher than the calculated in the aquifer in natural conditions, because it comes from the C02 produced in the landfill. PC02 is the main parameter that controls the dolomltlc marbles dissolution and the amount in calcium, magnesium and Inorganic carbon In the water samples. All these concentrations produce an increase In the saturation Indexe

The leachate produced ¡n La Mina landfill has affected the groundwater quality in its surroundings. The chemical composition of the waters from two wells points and the main spring of the aquifer have been controlled. Great amounts of calcium, magnesium and inorganic carbon have been detected In the water samples of the affected points. A hydrochemistry computer code has been used to calculate the PC02 and the saturation indexes of calcite, aragonite and dolomite. The PC02 values are higher than the calculated in the aquifer in natural conditions, because it comes from the C02 produced in the landfill. PC02 is the main parameter that controls the dolomltlc marbles dissolution and the amount in calcium, magnesium and Inorganic carbon In the water samples. All these concentrations produce an increase In the saturation Indexe