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Water scarcity makes Adasa advertising consumption reduction measures in the Federal District - 09/16/2016
Education16/09/2016 - Water scarcity makes Adasa advertising consumption reduction measures in the Federal District
Main Brasilia supply reservoir, Rio Discovered Dam reached the lowest level in the history of their ability on the afternoon of Friday (16) and placed Brasilia on alert
SAUL ARAÚJO, AGENCY BRASILIA
The lack of rain in Brasilia took the Dam River Discovered reaching the lowest level in its history. The reservoir responsible for supplying 65% of the Federal District was only 40% capacity until 14:35 on Friday (16). The measurement is made since 1989. The ideal is that it is maintained above 60% of its useful volume.
Therefore, the Regulatory Agency for Water, Energy and Sanitation of the Federal District (Adasa-DF) declared a state of alert for critical situation of water scarcity in the country's capital. In the afternoon, the CEO of the agency, Paul Salles, signs Resolution No. 15 of 2016, which recommends measures to ensure the maintenance of resources this fall.
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To minimize the effects of drought, the Adasa began to adopt rationalization measures of consumption, how to intensify educational campaigns and increase surveillance to curb illegal abstraction of water. The resolution presented on Friday determines suspend the issuance of permits for use of surface water resources, ie for purposes other than extremely necessary, and guides the DF population to avoid the use of treated water for washing cars and garages, for irrigation landscape and to fill swimming pools.
Reducing the dynamic pressure of supply distribution networks in distribution networks, 22 hours at 5 am the next day, it is another alternative that can be taken to force the fall in consumption in the city.
In the reservoir of Santa Maria, the second largest in the Federal District, the situation is also worrying. On Thursday (15), he had 50.35% of its capacity. To reduce drought impacts, another resolution of Adasa, the denúmero 13 August 2016, establishes actions that can be taken during states of attention and alert, how to control the distribution of water in time and in certain places.
"If each reduce their consumption, we will be able to reach the rainy season without the need to adopt more stringent measures."
Paulo Salles, CEO of Adasa-DF
During the alertness or attention, supervision to prevent illegal abstraction of water resources should also be increased.
The CEO of Adasa confirms that the situation is delicate and calls for the effective contribution of the Brasilia to save. "If each reduce their consumption, we will be able to reach the rainy season without the need to adopt more stringent measures," calls Paulo Salles.
Last cycle of rainfall is the 4th lowest since 1978
86 days without rain in Brasilia in 2016 - from May 17 to August 11 - have contributed to reducing the levels of the reservoirs that supply the city. Caesb the survey shows that the 2015-2016 rainfall cycle in the region where is the dam of Rio Discovered is the smallest room of a historic series that began to be measured in 1978-1979. The cycle always starts in September of a year and ends in August the following year.
The head of the weather forecast of the National Institute of Meteorology (Inmet), Luiz Cavalcanti explained that high temperatures computed in September - Wednesday (14) recorded the hottest day of the year, with 34 and 15% relative humidity air - intensify the evaporation of water, which accelerates the reduction of the basins that supply the Federal District. "Before a long period of dryness, the atmosphere search where water has, and evaporation of rivers and basins becomes much more intense," he says.
"Before a long period of dryness, the atmosphere which has water search, and evaporation of rivers and basins becomes more intense."
Luiz Cavalcanti, weather the head of the National Institute of Meteorology
The few rainfall in the period and the increase in water consumption by the population in recent years impacted directly emptying the basins. The projections Caesb, the DF must come to an end in 2016 with consumption of 183 million cubic meters of water - the highest in the last seven years. In 2015, there were 181 million cubic meters. In 2010, it measured 150 million cubic meters.
To reduce the waste of water in the country's capital, Caesb is replacing networks Lakes North and South. Company technicians install new pressure reducing valves, which prevents leaks. "It's a work with extremely important result because we avoid excessive loss of water in our networks," says daCaesb President Mauricio Luduvice.
irregular occupations influence the loss of water resources
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low water level in the dam Discovered led to Adasa to declare a state of alert. Photo: Tony Winston / Agency Brasilia
Lack of water seen in the main reservoirs of the DF is explained by another factor: the illegal occupation of land. In addition to affecting important water sources and destroy large areas of vegetation, people who erect houses without the consent of the government make use of illegal abstraction of water in networks Caesb. Therefore, the actions dogoverno of Brasilia against land grabbing are also intended to ensure the preservation of water resources. Since early 2015, the Agency for Supervision of the Federal District (Agefis) recovered more than 6.1 million square meters of public areas.
The lack of public investment in recent years in systems to increase storage capacity and distribution of water also contributed to the critical situation. The last great work of capturing the DF occurred 16 years ago with the construction of Pipiripau Basin. In the coming days a major intervention will begin near the exit of the Brasilia National Park, with the construction of Bananal subsystem reservoir will have the capacity to supply water to about 170,000 residents of the Pilot Plan, Cruise and North Lake. The investment will be $ 20 million.
