(Leah Hogsten | Tribune file photo) Taxpayers can expect to foot up to 72 percent of the controversial Lake Powell pipeline's costs, according to University of Utah economists who analyzed repayment models developed in support of the billion-dollar-plus proposal to pipe Colorado River water from Glen Canyon Dam, above, 140 miles to St. George. Officials from the Federal Energy Regulatory Commission (FERC) began a two-day site visit in southern Utah Tuesday, examining the 139-mile route of the proposed Lake Powell pipeline, Sept. 20, 2016.