LONDON WATER INFRASTRUCTURE. “Every day, Thames Water … treats and supplies 2.6 gigalitres (2.6×10(9) litres) of potable tap water from 102 water treatment works via 288 clean water pumping stations through 31,100 km (19,300 mi) of … mains to 9 million customers … across London … 30 raw water reservoirs and 235 underground service reservoirs.”
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