WATER IN RUHR Some 500 billion litres of water is acquired from the river Ruhr every year. The supply system includes 1000 waterworks, eight dams and five reservoirs. Drinking water […]
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WATER IN RUHR Some 500 billion litres of water is acquired from the river Ruhr every year. The supply system includes 1000 waterworks, eight dams and five reservoirs. Drinking water […]
Continue reading