Wyoming's two federally recognized tribes participated in a groundwater test that could turn up a connection between pollution and hydraulic fracturing, a controversial energy-processing technique that's commonly known as fracking.

The Eastern Shoshone Tribe and the Northern Arapaho Tribe collaborated with the state of Wyoming and two federal agencies on the test. The U.S. Geological Survey is set to release the results today.

The Environmental Protection Agency previously conducted a test that drew objections from the energy industry and Gov. Matt Mead (R).

Separately, the Bureau of Land Management is proposing rules that would regulate fracking on federal and Indian lands.

Get the Story:
New groundwater test results due from Wyoming fracking zone (AP 9/26)

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