SALT LAKE CITY (AP) — A water advocacy group has asked Utah State Auditor John Dougall to look into possible discrepancies in water-use data sent to state and federal regulators by backers of the proposal to build the Lake Powell Pipeline.

The Salt Lake Tribune reports the Utah Rivers Council sent a 14-page letter to the state auditor claiming that officials with the Utah Division of Water Resources and water managers in Washington County may have mislead regulators in a possible attempt to gain support for the project.

Washington County Water Conservancy General Manager Ron Thompson says they "are committed to sharing accurate and timely information with lawmakers and the public."

The project plans to bring water from Lake Powell to two southwestern Utah counties through nearly 140 miles (225 km) of underground pipe.

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Information from: The Salt Lake Tribune, http://www.sltrib.com