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The Boston Globe

Metro

Environmental groups ask EPA to regulate runoff

Conservation groups petitioned the Environmental Protection Agency Wednesday to regulate facilities that generate polluted runoff, part of a campaign to force companies to take responsibility for their environmental impact.

Under the Clean Water Act, the main federal law governing water pollution, most cities must ensure that new buildings are designed to limit runoff. But most pollution comes from existing private property — like scrap metal plants, universities, hospitals, and large retail chains — that cities are often powerless to regulate.

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