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15% of total annual regional water consumption collected by Madrid reservoirs this week - 15% of total annual regional water consumption collected by Madrid reservoirs this week

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angle-left 15% of total annual regional water consumption collected by Madrid reservoirs this week

15% of total annual regional water consumption collected by Madrid reservoirs this week

2017-02-18

The water reserve held in the region’s reservoirs stands 11% higher than last year


• The rainfall recorded in recent days has led to the release of 19 cubic hectometres for water security reasons
• The water reserve currently stands at 78.6% of full capacity, with 744 cubic hectometres in storage


Rainfall over the last week has raised the water reserve in the Autonomous Region of Madrid by eight points (the equivalent of 77 cubic hectometres) to 78.6% of full capacity, with 744 cubic hectometres in storage. Bearing in mind that annual consumption in the region stands at approximately 500 cubic hectometres, this means that, in seven days, the dams of Madrid managed to collect 15.4% of all the water
consumed by the region in a year.

The concentrated constant rainfall in recent days has led to 19 cubic hectometres of water being released by Canal de Isabel II in compliance with the dam operating guidelines approved by the Ministry of Agriculture and Fisheries, Food and Environmental Affairs. This step was taken so as not to surpass the maximum reservoir water levels for these facilities set for each month of the year.

Besides regulating water for supply purposes, another of a dam’s main functions is to control river levels. For this reason, a series of water storage levels are set according to the time of year and flood forecasts.

Hence, in the last week, a dozen of the 14 dams managed by Canal de Isabel II needed to open their sluice gates; specifically the Pinilla, Riosequillo, Puentes Viejas, El Villar, El Atazar, Pedrezuela, Santillana, La Jarosa, Navalmedio and La Aceña Dams.

Thanks to these water releases, the Pinilla, Riosequillo, Puentes Viejas and El Villar Hydro-power Plants generated 525 megawatts/hour of electricity in a single day (15 February). This output equates to the daily consumption by a town of 151,000 inhabitants.

So far this hydrological year (i.e. since 1 October 2016), the dam sluice gates have been opened on two occasions, with a corresponding release of 23 cubic hectometres. In the same period of the previous hydrological year, the gates were hardly opened at all and only 0.1 cubic hectometre was released.

The region’s reservoirs currently hold 744 cubic hectometres of water, standing at 78% of full capacity. The hydrological situation is therefore better than it was last year, when they stood at 67% with 631 cubic hectometres in storage.

Since the start of the hydrological year, the rivers that flow into the region’s reservoirs have provided 255 cubic hectometres of water, 106 more than in the same period of last year.

Canal de Isabel II was set up 165 years ago to supply water to the city of Madrid. Nowadays, it provides a service to over six million people throughout the region. It is a leading company in its sector and internationally recognised for its integrated water cycle management. It has 14 reservoirs, 78 groundwater collection stations, 14 drinking water treatment plants, 33 major regulation tanks and 288 minor regulation tanks, 17,366 kilometres of inflow and distribution pipes, 160 drinking water pumping stations and 126 waste water pumping stations, 14,784 kilometres of sewer pipes, 63 storm tanks, 156 waste water treatment plants and 510 kilometres of reclaimed water pipes.

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