BISMARCK, N.D. -- Members of the North Dakota Public Service Commission say Energy Transfer Partners, the parent company of Dakota Access Pipeline, hasn't been transparent in their communications.

It turns out a site of cultural significance was found along the pipeline route, but the state commissioners say Energy Transfer Partners waited 10 days to say anything about it.

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The site, which contained rock cairns, was successfully preserved by a route adjustment to the pipeline, but the Public Service Commission isn't satisfied with the way the company handled it.

"I was really extremely disappointed that the company failed to notify us about this when it happened," said PSC member Julie Fedorchak.

Energy Transfer Partners discovered sites deemed significant to Native American culture on October 17. The site found was described as a stone cairns feature, which could represent a number of things from a commemorative event, a trail marking or - in a small amount of cases - human remains.

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