U.K. Water Regulator Challenge Casts Doubt on Super-Sewer

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Britain’s biggest water and waste company is facing questions from regulatory authorities over its bid to raise customer bills by about 8 percent a year to help pay for a “super-sewer” project in London.

Ofwat is challenging Thames Water Utilities Ltd.’s request to increase household bills by about 29 pounds ($46) a year, it said today in a statement. The regulator says Thames Water has underspent on sewer-flood and sewage-treatment works and failed to sufficiently maintain parts of its wastewater network.