Ameren Missouri is strongly disputing allegations that the company violated the clean air act requirements as claimed in a lawsuit filed on jan12th on behalf of the US environment Protection Agency. The lawsuit filed on the 12th asserts that projects at Ameren Missouri’s rush island coal fired power plant were not performed consistent with nsr requirements. However, the NSR program does not apply to projects that constitute routine maintenance. All the Ameren Missouri projects, cited by USEPA, fall into the classification of routine maintenance. Ameren Missouri’s overall emissions are trending down, not up, while customers’ demand for electricity has increased by 50 percent since the 1990s. Mark Birk, vice president of Power Operations at Ameren Missouri says “We have been, and will continue to be, good environmental stewards, as evidenced by our strong track record for reducing emissions for decades.” Birk pointed out that Missouri, in enacting state regulations to implement the Clean Air Act, expressly adopted a broad definition of “routine maintenance.” The company stated that the ultimate resolution of this litigation could take several years.