Lake Keowee Real Estate News – Lake Keowee homes for sale – Lake Keowee News – Lake Keowee Waterfront property for sale – Lake Keowee Waterfront Real Estate for Rent – Lake Keowee – Sirens around Oconee Nuclear Station will be tested Jan. 9, at approximately 11:50 a.m. No public action is required during the three-minute test. The full-cycle test is performed once each quarter, and county emergency officials are responsible for souding the sirens.