As every year, the Service of the water of the Lausannoises and the Lausanne informed Lausanne, as well as the inhabitants of 17 other municipalities that he supplies, quality water that it distributes. It’s 30 billion litres of drinking water per year, which amounts to a cube to the edges of 310 meters. Consumers will receive this information through any household distributed of February 15, 2017.
The treatment of the water is subject to drastic rules, so that it can be eaten with confidence, and by all. Tests are done regularly to ensure its quality. The quality standards are a guarantee of security for the consumer.
Annual information to the public is a legal obligation governed by a federal order, but the water Service is considered as a moral obligation of transparency that it applies by making public the results analysis. They are performed on samples taken in the context of monitoring the quality of water on the ground. More than half of the drinking water consumed by the inhabitants of the Lausanne region (370’000 people) comes from Lake Geneva (55%) and go home, after having been purified. The rest comes from the Lake of Bret (18%) and sources shared between the foot of the Jura and the Gros-de-Vaud Pre-Alps (27%).
In 2016, the standards were met. Lausanne water Service welcomes the results achieved, year after year, thanks to the conscientious and rigorous of its employees work. An analysis of micropollutants campaign was made, in 2016, on the set of distribution networks. About 300 substances were analyzed, the results are reassuring.
The water quality is closely tied to a cycle: collection, treatment, storage, distribution, treatment before returning to the natural environment, which each element must be beyond reproach. Treatment plants thus play an essential role for the quality of the water cycle. The work undertaken for the reconstruction of the Vidy STEP will allow him to absorb the growth in the population and to meet the standards of treatment, including the treatment of micro-organisms and micropollutants.
For information on the water consumed by residential sector: www.lausanne.ch/eau to the water quality section, then the quality of the water at home.
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