The Shanghai Water Authority said its first reports came Friday evening.

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In a statement, the Shanghai municipal government said that the water in Huangpu River, which is a major source of drinking water for Shanghai, was safe.

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Turning back to China, authorities say that nearly 6, 000 dead pigs found floating down the Huangpu River towards Shanghai were not killed by an epidemic and tap water in Shanghai is not contaminated, 21st Century Business Herald reports.

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Shanghai authorities have stepped up tap water tests and assure residents that the tap water is safe to use.

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But the Shanghai summit could prove the high-water mark of Mr Powell's influence.

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In China Hyflux now has water projects in 20 cities, including Beijing and Shanghai.

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Shanghai, for instance, also boasts abundant supplies of clean water (a crucial input) and a fairly stable electricity grid.

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Shanghai officials said they had found no health threat in the city's water, though a spokeswoman for one city waterworks said extra precautions were being taken in its treatment for tap usage.

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Its bottled water, energy drinks and yogurt are ubiquitous from the urban markets of Beijing and Shanghai to rural stalls in the snowy mountains of the Tibetan plateau.

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