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September starts with the reservoirs at 82% of their capacity and beats historic records

null September starts with the reservoirs at 82% of their capacity and beats historic records

September starts with the reservoirs at 82% of their capacity and beats historic records


In spite of the excellent hydrological situation, Canal de Isabel II stresses the need to continue with an efficient and responsible use of water

  • The Community reservoirs store 776 cubic hectometres of water, and exceed the historic average by 15 points
  • Water consumption, in spite of the lack of rain and a slight increase in temperatures, remains the same as last August.

The water reserves stored in the reservoirs managed by Canal de Isabel II reached the end of August at 82% of their total capacity. This is 15 points higher than the average recorded for this time of year in the last 20 years and 16 points higher than the volume collected on the same date for the previous year, when the reservoirs were at around 66% of their maximum capacity.    This is the highest figure recorded in the last 25 years.

As a result, and as in previous months, the hydrological situation in the Community of Madrid is good, after a start to the year with figures well below the average. Rainfall in March and April, far higher than the historic averages, helped to increase the levels of the reservoirs, and continued to do so up until 15 June.

Thanks to the rainfall received, in particular, during the months of March and April, the water collected since the start of the hydrological year, on 01 October, is close to the historic average. The reservoirs which, at the end of February 18 were 18 points below the average values at approximately 50% of their maximum capacity, are now far above the average.

In addition, after a start to the hydrological year with an accumulated water consumption which, in November, was 5.1% higher than in the previous year, this figure has recovered and has been lower than in the same period of the previous year every month since February and up until the end of July. This August, even with temperatures higher than last year and an absence of rain, consumption was the same as for August 2017, at over 48 cubic hectometres of water.

Nevertheless, the accumulated figures since January show a fall in drinking water consumption in the Community of Madrid: since January the people of Madrid have consumed 322 cubic hectometres of water, 5.3% less than in 2017, and the accumulated consumption in the Community since the start of the hydrological year on 1 October is also 2.8% lower than in the previous year.

Lastly, the total collected since October, when the hydrological year started, is only 6 points below the average, while at the end of February it was 72.4% below: in these 11 months, 706 cubic hectometres of water have reached the reservoirs compared to the 754 of the historic average. More than 6 cubic hectometres of this water was collected in August. 


Although the current hydrological situation is excellent, Canal de Isabel II, as established in Line 1 of their Strategic Plan, highlights the need for responsible consumption in order to safeguard the reserves and guarantee supply to the population.

In turn, the public company permanently develops different plans and measures to conserve the water intended for human consumption. In recent years, it has promoted the development of reclaimed water for public and industrial uses. In a year such as this one, this has enabled savings of almost 20 hm3 of drinking water (approximately 15 days of consumption in the Community of Madrid). In addition, thanks to the plans to renovate the network and regular campaigns for the detection of leaks, it has managed to reduce the volume of losses in diverted water by 70%.

Lastly, public awareness campaigns and progressive tariffs which penalise very high consumption have enabled Canal, with water rates which are 23% lower than the average in the rest of Spain, to reduce the per capita consumption by almost 30% since the last drought in 2005. In this respect, the company, who has just relaunched an awareness campaign, highlights the small efforts to save water which are of great use in the summer months: cover swimming pools to prevent evaporation, water plants early in the morning or in the evening.  More tips can be found on the Web pagewww.sumatealretodelagua.com

Canal de Isabel II was founded more than 165 years ago to supply water to the city of Madrid. It employs more than 2500 people working daily to provide a service to more than 6 million people in the region. It is an innovative company, a leader in its sector, and internationally recognised for its management of the integrated water cycle. It operates 13 reservoirs; 78 spring tappings; 14 drinking water treatment plants; 17,556 kilometres of conveyance and distribution channels; 131 pumping stations for drinking water and 133 for waste water; 14,956 kilometres of sewage networks; 65 storm tanks; 877 kilometres of sewers and outfalls; 157 waste water treatment stations; and 588 kilometres of reclaimed water channels.

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