China Petroleum & Chemical Corp. (Sinopec) warned Chinese authorities two years ago that urbanization was hampering repairs on a crude oil pipeline in the eastern city of Qingdao, Bloomberg reported Thursday. A blast last week at the pipe killed 55 people. The pipeline had several safety hazards, Beijing-based Sinopec said in a September 2011 report to the Environmental Protection Bureau. The report describes the 27-year-old pipeline as originally built in a sparsely populated suburb now crowded by construction and a rising population, the report said. Qingdao is home to 7.66 million people.
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