2 groups challenge Indiana's extension of permit for proposed S. Ind. coal-gasification plant

A proposed $2.8 billion coal-gasification plant that won a reprieve last month from the Indiana Supreme Court is facing a new challenge, this time from environmental groups that contend the southern Indiana project's construction permit is invalid and expired last month.In an appeal filed Monday with the state's Office of Environmental Adjudication, the Sierra Club and Valley Watch Inc. argue the permit is void because the public wasn't given a chance to weigh in on developer Indiana Gasification LCC's request for a six-month permit extension

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