Yadkin Regional Water Supply Project Yadkin Regional Water Supply Project The Yadkin Regional Water Supply Project will ensure a long-term, sustainable water supply for current and future residents in the Yadkin River Basin. The Federal Energy Regulatory Commission (FERC) is currently completing its final review of the project’s permit to withdraw water from Lake Tillery. Construction can begin once FERC approves the permit and Duke Energy issues it. More information can be found at the Yadkin Regional Water Supply website.